Delete easypay

easypay/DUPLICATE_PAYMENT_ENHANCEMENT.md

@@ -1,115 +0,0 @@
-# Payment Processing Enhancement - Duplicate Payment Handling
-
-## Overview
-Enhanced the payment processing system to intelligently handle duplicate payments on the same date for the same student.
-
-## Changes Made
-
-### 1. **process_payment.php - STEP 1 Enhancement** (Lines 92-147)
-
-#### Previous Behavior:
-- Simply threw an exception if any payment existed for the student on the same date
-- No differentiation between same-term and different-term payments
-
-#### New Behavior:
-- **Checks for existing payment** and retrieves full details (id, session, term, total_paid)
-- **Different Term Detection**: If existing payment is for a different term/session, throws exception:
-  ```
-  "A payment for this student has already been registered on this date in a different term (Session: X, Term: Y)"
-  ```
-- **Same Term Handling**: If existing payment is for the same term:
-  - Returns JSON response with `status: 'confirmation_required'`
-  - Includes detailed message showing existing payment amount and new amount to be added
-  - Waits for user confirmation via `confirm_update` POST parameter
-  - If user confirms (`confirm_update === 'yes'`), sets `$isUpdateMode = true` and stores existing record details
-
-### 2. **process_payment.php - STEP 3b Enhancement** (Lines 202-244)
-
-#### Previous Behavior:
-- Always inserted a new record into `tb_account_school_fee_sum_payments`
-
-#### New Behavior:
-- **Update Mode** (when `$isUpdateMode === true`):
-  ```sql
-  UPDATE tb_account_school_fee_sum_payments
-  SET total_paid = total_paid + :additional_amount,
-      registered_on = NOW()
-  WHERE id = :existing_record_id
-  ```
-  - Adds new payment amount to existing total
-  - Updates `registered_on` timestamp to current time
-  
-- **Insert Mode** (when `$isUpdateMode === false`):
-  - Proceeds with normal INSERT operation as before
-
-### 3. **index.php - Form Submission Handler** (Lines 708-786)
-
-#### New AJAX-Based Submission:
-- Intercepts form submission to handle confirmation flow
-- Detects JSON responses with `status: 'confirmation_required'`
-- Shows browser confirmation dialog with payment details
-- **If User Confirms**:
-  - Appends `confirm_update=yes` to form data
-  - Resubmits request to process_payment.php
-  - Displays final success/error page
-- **If User Cancels**:
-  - Shows "Payment cancelled by user" message
-  - Re-enables form for new attempt
-
-## User Flow
-
-### Scenario 1: Different Term Payment Exists
-1. User attempts to process payment for Student X on Date Y
-2. System finds existing payment for different term
-3. **Exception thrown immediately**: "A payment for this student has already been registered on this date in a different term (Session: 2024, Term: 2)"
-4. Payment process stops
-
-### Scenario 2: Same Term Payment Exists
-1. User attempts to process payment for Student X on Date Y
-2. System finds existing payment for same term/session
-3. **Popup appears**: "A payment for this student already exists on 2026-01-06 for Session 2024, Term 1. Current total: ₦50,000.00. Do you want to update this record by adding ₦25,000.00 to the existing amount?"
-4. **User clicks OK**:
-   - System updates existing record
-   - `total_paid` becomes ₦75,000.00
-   - `registered_on` updated to current timestamp
-   - All other STEP 3 operations (3a, 3c, 3d, 3e) proceed normally
-5. **User clicks Cancel**:
-   - Alert: "Payment cancelled by user"
-   - No database changes
-   - Form remains open for retry
-
-### Scenario 3: No Existing Payment
-1. User processes payment normally
-2. No duplicate detected
-3. System proceeds with standard INSERT operation
-4. Success page displayed
-
-## Database Impact
-
-### Tables Modified:
-- **tb_account_school_fee_sum_payments**: 
-  - UPDATE operation added for duplicate same-term scenarios
-  - `total_paid` incremented
-  - `registered_on` timestamp updated
-
-### Tables Unaffected by Update Mode:
-- **tb_account_school_fee_payments**: Always receives new records (3a)
-- **tb_account_student_payments**: Always receives new records (3c)
-- **tb_account_payment_registers**: Always receives new records (3d)
-- **tb_student_logistics**: Always updated with new payment amounts (3e)
-
-## Technical Notes
-
-1. **Transaction Safety**: All operations remain within the existing database transaction, ensuring atomicity
-2. **Backward Compatibility**: Normal payment flows (no duplicates) work exactly as before
-3. **Error Handling**: Maintains existing exception handling and rollback mechanisms
-4. **User Experience**: Confirmation dialog provides clear information about existing payment and proposed update
-
-## Testing Recommendations
-
-1. Test different-term duplicate detection
-2. Test same-term duplicate with user confirmation
-3. Test same-term duplicate with user cancellation
-4. Verify database updates are correct when user confirms
-5. Verify no database changes when user cancels
-6. Test normal payment flow (no duplicates) still works

easypay/README.md

@@ -1,204 +0,0 @@
-# Student Fee Payment Registration System
-
-A streamlined 2-page PHP application that simplifies the school fee payment process by automatically allocating payments across outstanding fees from oldest to newest.
-
-## Features
-
-- **AJAX-powered student search** - Find students quickly by name or student code
-- **Outstanding fees display** - View all unpaid fees sorted from oldest to newest
-- **Automatic payment allocation** - Payments are automatically distributed across selected fees in chronological order
-- **Teller validation** - Automatic lookup of bank statements with unreconciled amount calculation
-- **Duplicate prevention** - Prevents multiple payments for the same student on the same date
-- **Transactional integrity** - All database operations wrapped in transactions with automatic rollback on error
-- **Comprehensive receipts** - Detailed payment confirmation with all settled fees
-
-## Database Tables Used
-
-The application interacts with the following tables in the `one_arps_aci` database:
-
-- `tb_student_registrations` - Student information
-- `tb_academic_levels` - Academic level details
-- `tb_account_school_fees` - Fee definitions
-- `tb_account_receivables` - Billed fees (invoices)
-- `tb_account_bank_statements` - Bank transaction data
-- `tb_account_school_fee_payments` - Individual fee payment records
-- `tb_account_school_fee_sum_payments` - Aggregated payment records
-- `tb_account_student_payments` - Cumulative payment tracking
-- `tb_account_payment_registers` - Receipt records
-- `tb_student_logistics` - Student outstanding balance tracking
-
-## Installation
-
-### Prerequisites
-
-- PHP 7.4 or higher
-- MySQL 5.7 or higher
-- Web server (Apache, Nginx, or PHP built-in server)
-- Existing `one_arps_aci` database with required tables
-
-### Setup Steps
-
-1. **Copy files to your web directory**
-   ```
-   c:\ESD\ARPS EasyPayments\
-   ├── db_config.php
-   ├── index.php
-   ├── process_payment.php
-   └── ajax_handlers.php
-   ```
-
-2. **Configure database connection**
-   
-   Edit `db_config.php` and update the following constants:
-   ```php
-   define('DB_HOST', 'localhost');     // Your MySQL host
-   define('DB_USER', 'root');          // Your MySQL username
-   define('DB_PASS', '');              // Your MySQL password
-   ```
-
-3. **Set proper permissions**
-   
-   Ensure the web server has read access to all PHP files.
-
-4. **Access the application**
-   
-   Navigate to `http://localhost/ARPS%20EasyPayments/index.php` in your browser.
-
-## Usage Guide
-
-### Step 1: Search for a Student
-
-1. Type the student's name or student code in the search box
-2. Select the student from the dropdown results
-3. The page will reload showing student details and outstanding fees
-
-### Step 2: Review Outstanding Fees
-
-- All outstanding fees are displayed in a table, sorted from oldest to newest
-- Fees are pre-checked by default
-- You can uncheck any fees you don't want to settle
-- The table shows:
-  - Fee description
-  - Academic session and term
-  - Billed amount
-  - Amount already paid
-  - Outstanding balance
-
-### Step 3: Process Payment
-
-1. Click the **"Process Payment"** button
-2. Enter the **Teller Number** from the bank statement
-3. The system will automatically:
-   - Look up the bank statement
-   - Fill in the bank narration
-   - Calculate the unreconciled amount on the teller
-4. Enter the **Amount to Use for Fees** (must not exceed unreconciled amount)
-5. Click **"OK PROCEED!"**
-
-### Step 4: View Confirmation
-
-- On success, you'll see a detailed receipt showing:
-  - Student name and receipt number
-  - Payment date and teller information
-  - All fees that were settled
-  - Remaining unreconciled amount on the teller
-- On failure, you'll see an error message (no database changes are made)
-
-## Payment Allocation Logic
-
-The system automatically allocates payments using the following rules:
-
-1. **Oldest First** - Fees are sorted by academic session (ASC), then term (ASC)
-2. **Full Settlement Priority** - Each fee is fully settled before moving to the next
-3. **Partial Settlement** - If the payment amount runs out, the last fee is partially settled
-4. **Automatic Calculation** - No manual allocation required
-
-### Example
-
-If a student has these outstanding fees:
-- 2024 Term 1: ₦10,000
-- 2024 Term 2: ₦15,000
-- 2024 Term 3: ₦12,000
-
-And you process a payment of ₦30,000:
-- 2024 Term 1: Fully settled (₦10,000)
-- 2024 Term 2: Fully settled (₦15,000)
-- 2024 Term 3: Partially settled (₦5,000)
-
-## ID Generation Rules
-
-The application follows strict ID generation rules as per the database schema:
-
-- **transaction_id**: `student_id + academic_session + payment_date`
-- **school_fee_payment_id**: `student_code + fee_id + payment_date`
-- **receipt_no**: `student_code + payment_date`
-- **Date format**: Always `YYYY-MM-DD`
-
-## Error Handling
-
-The application includes comprehensive error handling:
-
-- **Database connection failures** - Clear error message displayed
-- **Invalid teller numbers** - Validation before processing
-- **Duplicate payments** - Prevented at database level
-- **Insufficient unreconciled amount** - Client and server-side validation
-- **Transaction failures** - Automatic rollback with error details
-
-## Security Features
-
-- **PDO with prepared statements** - Protection against SQL injection
-- **Input validation** - Server-side validation of all inputs
-- **Output sanitization** - All user data is escaped before display
-- **Transaction integrity** - All-or-nothing database operations
-
-## Browser Compatibility
-
-- Chrome (recommended)
-- Firefox
-- Edge
-- Safari
-
-## Troubleshooting
-
-### "Database connection failed"
-- Check your database credentials in `db_config.php`
-- Ensure MySQL server is running
-- Verify the database name is `one_arps_aci`
-
-### "Teller number not found"
-- Verify the teller number exists in `tb_account_bank_statements`
-- Check that the teller number is the last token in the description field
-- Ensure there's unreconciled amount available
-
-### "A payment for this student has already been registered on this date"
-- This is a duplicate prevention feature
-- You cannot process multiple payments for the same student on the same date
-- Use a different payment date or check existing records
-
-## Technical Notes
-
-### Teller Number Extraction
-
-The system extracts teller information from `tb_account_bank_statements.description` using this logic:
-- **Teller Number**: Last token (rightmost word) after splitting by spaces
-- **Teller Name**: All text before the last space
-
-Example: `"SCHOOL FEES PAYMENT 1234567890"`
-- Teller Number: `1234567890`
-- Teller Name: `SCHOOL FEES PAYMENT`
-
-### Unreconciled Amount Calculation
-
-```sql
-unreconciled_amount = bank_statement.amount_paid - SUM(school_fee_payments.amount_paid)
-```
-
-This shows how much of the bank deposit has not yet been allocated to student fees.
-
-## Support
-
-For issues or questions, please contact the system administrator.
-
-## License
-
-Internal use only - ARPS School Management System

easypay/ajax_handlers.php

@@ -1,122 +0,0 @@
-<?php
-/**
- * AJAX Handlers
- * Endpoints for student search and teller lookup
- */
-
-require_once 'db_config.php';
-
-header('Content-Type: application/json');
-
-$action = $_GET['action'] ?? '';
-
-try {
-    switch ($action) {
-        case 'search_students':
-            searchStudents($pdo);
-            break;
-
-        case 'lookup_teller':
-            lookupTeller($pdo);
-            break;
-
-        default:
-            echo json_encode(['error' => 'Invalid action']);
-    }
-} catch (Exception $e) {
-    echo json_encode(['error' => $e->getMessage()]);
-}
-
-/**
- * Search for students by name or student code
- */
-function searchStudents($pdo)
-{
-    $search = $_GET['search'] ?? '';
-
-    if (strlen($search) < 2) {
-        echo json_encode([]);
-        return;
-    }
-
-    $sql = "SELECT 
-                id,
-                student_code,
-                CONCAT(last_name, ' ', first_name, ' ', COALESCE(other_name, '')) AS full_name
-            FROM tb_student_registrations
-            WHERE 
-		admission_status = 'Active' -- New condition added here
-    		AND (
-        	    student_code LIKE :search1
-	            OR last_name LIKE :search2
-        	    OR first_name LIKE :search3
-        	    OR other_name LIKE :search4
-      		    OR CONCAT(last_name, ' ', first_name, ' ', COALESCE(other_name, '')) LIKE :search5
-    		)
-            ORDER BY last_name, first_name
-            LIMIT 20";
-
-    $stmt = $pdo->prepare($sql);
-    $searchParam = '%' . $search . '%';
-    $stmt->execute([
-        'search1' => $searchParam,
-        'search2' => $searchParam,
-        'search3' => $searchParam,
-        'search4' => $searchParam,
-        'search5' => $searchParam
-    ]);
-
-    $results = $stmt->fetchAll();
-    echo json_encode($results);
-}
-
-/**
- * Lookup bank statement by teller number
- */
-function lookupTeller($pdo)
-{
-    $tellerNumber = $_GET['teller_number'] ?? '';
-
-    if (empty($tellerNumber)) {
-        echo json_encode(['error' => 'Teller number is required']);
-        return;
-    }
-
-    // Query to find bank statement and calculate unreconciled amount
-    $sql = "SELECT
-                bs.id,
-                bs.description,
-                bs.amount_paid,
-                bs.payment_date,
-                COALESCE(fp.total_registered_fee, 0.00) AS registered_amount,
-                (bs.amount_paid - COALESCE(fp.total_registered_fee, 0.00)) AS unreconciled_amount
-            FROM tb_account_bank_statements bs
-            LEFT JOIN (
-                SELECT teller_no, SUM(amount_paid) AS total_registered_fee
-                FROM tb_account_school_fee_payments
-                GROUP BY teller_no
-            ) fp ON SUBSTRING_INDEX(bs.description, ' ', -1) = fp.teller_no
-            WHERE SUBSTRING_INDEX(bs.description, ' ', -1) = :teller_number
-            HAVING unreconciled_amount >= 0
-            LIMIT 1";
-
-    $stmt = $pdo->prepare($sql);
-    $stmt->execute(['teller_number' => $tellerNumber]);
-
-    $result = $stmt->fetch();
-
-    if (!$result) {
-        echo json_encode(['error' => 'Teller number not found or fully reconciled']);
-        return;
-    }
-
-    // Extract teller name (description without last token)
-    $descParts = explode(' ', $result['description']);
-    array_pop($descParts); // Remove teller number
-    $tellerName = implode(' ', $descParts);
-
-    $result['teller_name'] = $tellerName;
-    $result['teller_no'] = $tellerNumber;
-
-    echo json_encode($result);
-}

easypay/db_config.php

@@ -1,27 +0,0 @@
-<?php
-/**
- * Database Configuration
- * PDO connection for one_arps_aci database
- */
-
-// Database credentials
-define('DB_HOST', 'o2.service.oyster.cloud76.cc:3306');
-define('DB_NAME', 'one_arps_aci');
-define('DB_USER', 'cs_admin');
-define('DB_PASS', 'D55-system-2-beasts-jungle-sky-birth');
-define('DB_CHARSET', 'utf8mb4');
-
-// PDO options
-$options = [
-    PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
-    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
-    PDO::ATTR_EMULATE_PREPARES   => false,
-];
-
-// Create PDO instance
-try {
-    $dsn = "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=" . DB_CHARSET;
-    $pdo = new PDO($dsn, DB_USER, DB_PASS, $options);
-} catch (PDOException $e) {
-    die("Database connection failed: " . $e->getMessage());
-}

easypay/index.php

@@ -1,789 +0,0 @@
-<?php
-/**
- * Student Fee Payment Registration - Main Page
- * Search for students and display outstanding fees
- */
-
-require_once 'db_config.php';
-
-$studentData = null;
-$outstandingFees = [];
-$studentId = $_GET['student_id'] ?? '';
-
-// If student is selected, fetch their data and outstanding fees
-if (!empty($studentId)) {
-    try {
-        // Fetch student details
-        $sql = "SELECT 
-                    sr.id,
-                    sr.student_code,
-                    CONCAT(sr.last_name, ' ', sr.first_name, ' ', COALESCE(sr.other_name, '')) AS full_name,
-                    al.level_name
-                FROM tb_student_registrations sr
-                LEFT JOIN tb_academic_levels al ON al.id = sr.level_id
-                WHERE sr.id = :student_id";
-
-        $stmt = $pdo->prepare($sql);
-        $stmt->execute(['student_id' => $studentId]);
-        $studentData = $stmt->fetch();
-
-        if ($studentData) {
-            // Fetch outstanding fees per fee_id
-            $sql = "SELECT
-			ar.id AS receivable_id,
-    			ar.fee_id,
-    			asf.description AS fee_description,
-    			ar.academic_session,
-    			ar.term_of_session,
-    			ar.actual_value AS billed_amount,
-    			COALESCE(asp.total_paid_for_period, 0) AS total_paid, -- Renamed column for clarity
-    			(ar.actual_value - COALESCE(asp.total_paid_for_period, 0)) AS outstanding_amount,
-    			ar.created_on
-		FROM
-    			tb_account_receivables ar
-		JOIN
-    			tb_account_school_fees asf ON asf.id = ar.fee_id
-		LEFT JOIN (
-    			-- Subquery now calculates total payments specific to a session, term, and fee
-    			SELECT
-        			fee_id,
-        			student_id,
-        			academic_session,
-        			term_of_session,
-        			SUM(payment_to_date) AS total_paid_for_period
-    			FROM
-        			tb_account_student_payments
-    			GROUP BY
-        			fee_id,
-        			student_id,
-        			academic_session,
-        			term_of_session
-			) asp ON asp.fee_id = ar.fee_id
-     				AND asp.student_id = ar.student_id
-     				AND asp.academic_session = ar.academic_session
-     				AND asp.term_of_session = ar.term_of_session
-			WHERE
-    				ar.student_id = :student_id
-    				AND ar.academic_session > 2023
-    				-- Only show records where the calculated outstanding amount is greater than zero
-    				AND (ar.actual_value - COALESCE(asp.total_paid_for_period, 0)) > 0
-			ORDER BY
-    				ar.academic_session ASC, ar.term_of_session ASC, ar.created_on ASC";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute(['student_id' => $studentId]);
-            $outstandingFees = $stmt->fetchAll();
-        }
-    } catch (PDOException $e) {
-        $error = "Error fetching student data: " . $e->getMessage();
-    }
-}
-?>
-<!DOCTYPE html>
-<html lang="en">
-
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Student Fee Payment Registration</title>
-    <style>
-        * {
-            margin: 0;
-            padding: 0;
-            box-sizing: border-box;
-        }
-
-        body {
-            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            min-height: 100vh;
-            padding: 20px;
-        }
-
-        .container {
-            max-width: 1200px;
-            margin: 0 auto;
-            background: white;
-            border-radius: 12px;
-            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
-            padding: 30px;
-        }
-
-        h1 {
-            color: #333;
-            margin-bottom: 30px;
-            text-align: center;
-            font-size: 28px;
-        }
-
-        .search-section {
-            margin-bottom: 30px;
-            padding: 20px;
-            background: #f8f9fa;
-            border-radius: 8px;
-        }
-
-        .search-box {
-            position: relative;
-        }
-
-        .search-box label {
-            display: block;
-            margin-bottom: 8px;
-            font-weight: 600;
-            color: #555;
-        }
-
-        .search-box input {
-            width: 100%;
-            padding: 12px 15px;
-            border: 2px solid #ddd;
-            border-radius: 6px;
-            font-size: 16px;
-            transition: border-color 0.3s;
-        }
-
-        .search-box input:focus {
-            outline: none;
-            border-color: #667eea;
-        }
-
-        .search-results {
-            position: absolute;
-            top: 100%;
-            left: 0;
-            right: 0;
-            background: white;
-            border: 2px solid #667eea;
-            border-top: none;
-            border-radius: 0 0 6px 6px;
-            max-height: 300px;
-            overflow-y: auto;
-            display: none;
-            z-index: 1000;
-            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
-        }
-
-        .search-results.active {
-            display: block;
-        }
-
-        .search-result-item {
-            padding: 12px 15px;
-            cursor: pointer;
-            border-bottom: 1px solid #eee;
-            transition: background-color 0.2s;
-        }
-
-        .search-result-item:hover {
-            background-color: #f0f0f0;
-        }
-
-        .search-result-item:last-child {
-            border-bottom: none;
-        }
-
-        .student-code {
-            color: #667eea;
-            font-weight: 600;
-            margin-right: 10px;
-        }
-
-        .student-details {
-            margin-bottom: 30px;
-            padding: 20px;
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            color: white;
-            border-radius: 8px;
-        }
-
-        .student-details h2 {
-            margin-bottom: 10px;
-            font-size: 24px;
-        }
-
-        .student-details p {
-            font-size: 16px;
-            margin-bottom: 5px;
-        }
-
-        .fees-section {
-            margin-bottom: 30px;
-        }
-
-        .fees-section h3 {
-            margin-bottom: 15px;
-            color: #333;
-            font-size: 20px;
-        }
-
-        table {
-            width: 100%;
-            border-collapse: collapse;
-            margin-bottom: 20px;
-        }
-
-        th,
-        td {
-            padding: 12px;
-            text-align: left;
-            border-bottom: 1px solid #ddd;
-        }
-
-        th {
-            background-color: #667eea;
-            color: white;
-            font-weight: 600;
-        }
-
-        tr:hover {
-            background-color: #f8f9fa;
-        }
-
-        .amount {
-            text-align: right;
-            font-family: 'Courier New', monospace;
-        }
-
-        .btn {
-            padding: 12px 30px;
-            border: none;
-            border-radius: 6px;
-            font-size: 16px;
-            font-weight: 600;
-            cursor: pointer;
-            transition: all 0.3s;
-        }
-
-        .btn-primary {
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            color: white;
-        }
-
-        .btn-primary:hover {
-            transform: translateY(-2px);
-            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
-        }
-
-        .btn-primary:disabled {
-            background: #ccc;
-            cursor: not-allowed;
-            transform: none;
-        }
-
-        .modal {
-            display: none;
-            position: fixed;
-            top: 0;
-            left: 0;
-            width: 100%;
-            height: 100%;
-            background: rgba(0, 0, 0, 0.5);
-            z-index: 2000;
-            align-items: center;
-            justify-content: center;
-        }
-
-        .modal.active {
-            display: flex;
-        }
-
-        .modal-content {
-            background: white;
-            padding: 30px;
-            border-radius: 12px;
-            max-width: 600px;
-            width: 90%;
-            max-height: 90vh;
-            overflow-y: auto;
-        }
-
-        .modal-header {
-            margin-bottom: 20px;
-        }
-
-        .modal-header h2 {
-            color: #333;
-            font-size: 22px;
-        }
-
-        .form-group {
-            margin-bottom: 20px;
-        }
-
-        .form-group label {
-            display: block;
-            margin-bottom: 8px;
-            font-weight: 600;
-            color: #555;
-        }
-
-        .form-group input,
-        .form-group textarea {
-            width: 100%;
-            padding: 10px 12px;
-            border: 2px solid #ddd;
-            border-radius: 6px;
-            font-size: 14px;
-            font-family: inherit;
-        }
-
-        .form-group input:focus,
-        .form-group textarea:focus {
-            outline: none;
-            border-color: #667eea;
-        }
-
-        .form-group input[readonly] {
-            background-color: #f0f0f0;
-            cursor: not-allowed;
-        }
-
-        .modal-actions {
-            display: flex;
-            gap: 10px;
-            justify-content: flex-end;
-            margin-top: 25px;
-        }
-
-        .btn-secondary {
-            background: #6c757d;
-            color: white;
-        }
-
-        .btn-secondary:hover {
-            background: #5a6268;
-        }
-
-        .error {
-            color: #dc3545;
-            font-size: 14px;
-            margin-top: 5px;
-        }
-
-        .success {
-            color: #28a745;
-            font-size: 14px;
-            margin-top: 5px;
-        }
-
-        .alert {
-            padding: 15px;
-            border-radius: 6px;
-            margin-bottom: 20px;
-        }
-
-        .alert-error {
-            background-color: #f8d7da;
-            color: #721c24;
-            border: 1px solid #f5c6cb;
-        }
-
-        .total-row {
-            font-weight: bold;
-            background-color: #f0f0f0;
-        }
-
-        .loading {
-            display: inline-block;
-            width: 16px;
-            height: 16px;
-            border: 3px solid #f3f3f3;
-            border-top: 3px solid #667eea;
-            border-radius: 50%;
-            animation: spin 1s linear infinite;
-            margin-left: 10px;
-        }
-
-        @keyframes spin {
-            0% {
-                transform: rotate(0deg);
-            }
-
-            100% {
-                transform: rotate(360deg);
-            }
-        }
-    </style>
-</head>
-
-<body>
-    <div class="container">
-        <h1>Student Fee Payment Registration</h1>
-
-        <?php if (isset($error)): ?>
-            <div class="alert alert-error"><?php echo htmlspecialchars($error); ?></div>
-        <?php endif; ?>
-
-        <!-- Student Search Section -->
-        <div class="search-section">
-            <div class="search-box">
-                <label for="studentSearch">Search Student (by name or student code)</label>
-                <input type="text" id="studentSearch" placeholder="Type to search..." autocomplete="off">
-                <div class="search-results" id="searchResults"></div>
-            </div>
-        </div>
-
-        <?php if ($studentData): ?>
-            <!-- Student Details -->
-            <div class="student-details">
-                <h2><?php echo htmlspecialchars($studentData['full_name']); ?></h2>
-                <p><strong>Student Code:</strong> <?php echo htmlspecialchars($studentData['student_code']); ?></p>
-                <p><strong>Academic Level:</strong> <?php echo htmlspecialchars($studentData['level_name'] ?? 'N/A'); ?></p>
-            </div>
-
-            <?php if (count($outstandingFees) > 0): ?>
-                <!-- Outstanding Fees Section -->
-                <div class="fees-section">
-                    <h3>Outstanding Fees</h3>
-                    <form id="paymentForm">
-                        <input type="hidden" name="student_id" value="<?php echo htmlspecialchars($studentData['id']); ?>">
-                        <input type="hidden" name="student_code"
-                            value="<?php echo htmlspecialchars($studentData['student_code']); ?>">
-
-                        <table>
-                            <thead>
-                                <tr>
-                                    <th width="50">Select</th>
-                                    <th>Fee Description</th>
-                                    <th width="100">Session</th>
-                                    <th width="80">Term</th>
-                                    <th width="120" class="amount">Billed</th>
-                                    <th width="120" class="amount">Paid</th>
-                                    <th width="120" class="amount">Outstanding</th>
-                                </tr>
-                            </thead>
-                            <tbody>
-                                <?php
-                                $totalOutstanding = 0;
-                                foreach ($outstandingFees as $fee):
-                                    $totalOutstanding += $fee['outstanding_amount'];
-                                    ?>
-                                    <tr>
-                                        <td>
-                                            <input type="checkbox" class="fee-checkbox" name="selected_fees[]" value="<?php echo htmlspecialchars(json_encode([
-                                                'receivable_id' => $fee['receivable_id'],
-                                                'fee_id' => $fee['fee_id'],
-                                                'academic_session' => $fee['academic_session'],
-                                                'term_of_session' => $fee['term_of_session'],
-                                                'outstanding_amount' => $fee['outstanding_amount']
-                                            ])); ?>" checked>
-                                        </td>
-                                        <td><?php echo htmlspecialchars($fee['fee_description']); ?></td>
-                                        <td><?php echo htmlspecialchars($fee['academic_session']); ?></td>
-                                        <td><?php echo htmlspecialchars($fee['term_of_session']); ?></td>
-                                        <td class="amount">₦<?php echo number_format($fee['billed_amount'], 2); ?></td>
-                                        <td class="amount">₦<?php echo number_format($fee['total_paid'], 2); ?></td>
-                                        <td class="amount">₦<?php echo number_format($fee['outstanding_amount'], 2); ?></td>
-                                    </tr>
-                                <?php endforeach; ?>
-                                <tr class="total-row">
-                                    <td colspan="6" style="text-align: right;">Total Outstanding:</td>
-                                    <td class="amount">₦<?php echo number_format($totalOutstanding, 2); ?></td>
-                                </tr>
-                            </tbody>
-                        </table>
-
-                        <button type="button" class="btn btn-primary" id="processPaymentBtn">Process Payment</button>
-                    </form>
-                </div>
-            <?php else: ?>
-                <div class="alert alert-error">No outstanding fees found for this student.</div>
-            <?php endif; ?>
-        <?php endif; ?>
-    </div>
-
-    <!-- Payment Modal -->
-    <div class="modal" id="paymentModal">
-        <div class="modal-content">
-            <div class="modal-header">
-                <h2>Process Payment</h2>
-            </div>
-
-            <form id="paymentDetailsForm" method="POST" action="process_payment.php">
-                <input type="hidden" name="student_id" id="modal_student_id">
-                <input type="hidden" name="student_code" id="modal_student_code">
-                <input type="hidden" name="selected_fees" id="modal_selected_fees">
-                <input type="hidden" name="payment_date" id="modal_payment_date">
-                <input type="hidden" name="bank_description" id="modal_bank_description">
-
-                <div class="form-group">
-                    <label for="teller_number">Teller Number *</label>
-                    <input type="text" id="teller_number" name="teller_number" required>
-                    <span class="loading" id="tellerLoading" style="display:none;"></span>
-                    <div class="error" id="tellerError"></div>
-                </div>
-
-                <div class="form-group">
-                    <label for="bank_narration">Bank Narration</label>
-                    <textarea id="bank_narration" name="bank_narration" rows="3" readonly></textarea>
-                </div>
-
-                <div class="form-group">
-                    <label for="unreconciled_amount">Unreconciled Amount on Teller</label>
-                    <input type="text" id="unreconciled_amount" readonly>
-                </div>
-
-                <div class="form-group">
-                    <label for="amount_to_use">Amount to Use for Fees *</label>
-                    <input type="number" id="amount_to_use" name="amount_to_use" step="0.01" min="0" required>
-                    <div class="error" id="amountError"></div>
-                </div>
-
-                <div class="modal-actions">
-                    <button type="button" class="btn btn-secondary" id="cancelBtn">Cancel</button>
-                    <button type="submit" class="btn btn-primary" id="proceedBtn" disabled>OK PROCEED!</button>
-                </div>
-            </form>
-        </div>
-    </div>
-
-    <script>
-        // Student search functionality
-        const searchInput = document.getElementById('studentSearch');
-        const searchResults = document.getElementById('searchResults');
-        let searchTimeout;
-
-        searchInput.addEventListener('input', function () {
-            clearTimeout(searchTimeout);
-            const searchTerm = this.value.trim();
-
-            if (searchTerm.length < 2) {
-                searchResults.classList.remove('active');
-                searchResults.innerHTML = '';
-                return;
-            }
-
-            searchTimeout = setTimeout(() => {
-                fetch(`ajax_handlers.php?action=search_students&search=${encodeURIComponent(searchTerm)}`)
-                    .then(response => response.json())
-                    .then(data => {
-                        if (data.error) {
-                            searchResults.innerHTML = `<div class="search-result-item">${data.error}</div>`;
-                        } else if (data.length === 0) {
-                            searchResults.innerHTML = '<div class="search-result-item">No students found</div>';
-                        } else {
-                            searchResults.innerHTML = data.map(student =>
-                                `<div class="search-result-item" data-id="${student.id}">
-                                    <span class="student-code">${student.student_code}</span>
-                                    <span>${student.full_name}</span>
-                                </div>`
-                            ).join('');
-
-                            // Add click handlers
-                            document.querySelectorAll('.search-result-item').forEach(item => {
-                                item.addEventListener('click', function () {
-                                    const studentId = this.dataset.id;
-                                    window.location.href = `?student_id=${studentId}`;
-                                });
-                            });
-                        }
-                        searchResults.classList.add('active');
-                    })
-                    .catch(error => {
-                        console.error('Search error:', error);
-                        searchResults.innerHTML = '<div class="search-result-item">Error searching students</div>';
-                        searchResults.classList.add('active');
-                    });
-            }, 300);
-        });
-
-        // Close search results when clicking outside
-        document.addEventListener('click', function (e) {
-            if (!searchInput.contains(e.target) && !searchResults.contains(e.target)) {
-                searchResults.classList.remove('active');
-            }
-        });
-
-        // Payment modal functionality
-        const modal = document.getElementById('paymentModal');
-        const processPaymentBtn = document.getElementById('processPaymentBtn');
-        const cancelBtn = document.getElementById('cancelBtn');
-        const tellerInput = document.getElementById('teller_number');
-        const tellerLoading = document.getElementById('tellerLoading');
-        const tellerError = document.getElementById('tellerError');
-        const amountInput = document.getElementById('amount_to_use');
-        const amountError = document.getElementById('amountError');
-        const proceedBtn = document.getElementById('proceedBtn');
-
-        let unreconciledAmount = 0;
-
-        processPaymentBtn?.addEventListener('click', function () {
-            const checkedFees = document.querySelectorAll('.fee-checkbox:checked');
-
-            if (checkedFees.length === 0) {
-                alert('Please select at least one fee to process payment.');
-                return;
-            }
-
-            // Collect selected fees
-            const selectedFees = Array.from(checkedFees).map(cb => JSON.parse(cb.value));
-
-            // Populate modal
-            document.getElementById('modal_student_id').value = document.querySelector('input[name="student_id"]').value;
-            document.getElementById('modal_student_code').value = document.querySelector('input[name="student_code"]').value;
-            document.getElementById('modal_selected_fees').value = JSON.stringify(selectedFees);
-
-            // Reset form
-            document.getElementById('paymentDetailsForm').reset();
-            tellerError.textContent = '';
-            amountError.textContent = '';
-            proceedBtn.disabled = true;
-            unreconciledAmount = 0;
-
-            modal.classList.add('active');
-        });
-
-        cancelBtn.addEventListener('click', function () {
-            modal.classList.remove('active');
-        });
-
-        // Teller lookup on blur
-        tellerInput.addEventListener('blur', function () {
-            const tellerNumber = this.value.trim();
-
-            if (!tellerNumber) {
-                return;
-            }
-
-            tellerLoading.style.display = 'inline-block';
-            tellerError.textContent = '';
-
-            fetch(`ajax_handlers.php?action=lookup_teller&teller_number=${encodeURIComponent(tellerNumber)}`)
-                .then(response => response.json())
-                .then(data => {
-                    tellerLoading.style.display = 'none';
-
-                    if (data.error) {
-                        tellerError.textContent = data.error;
-                        document.getElementById('bank_narration').value = '';
-                        document.getElementById('unreconciled_amount').value = '';
-                        unreconciledAmount = 0;
-                        proceedBtn.disabled = true;
-                    } else {
-                        document.getElementById('bank_narration').value = data.teller_name;
-                        document.getElementById('unreconciled_amount').value = '₦' + parseFloat(data.unreconciled_amount).toFixed(2);
-                        document.getElementById('modal_payment_date').value = data.payment_date;
-                        document.getElementById('modal_bank_description').value = data.description;
-                        unreconciledAmount = parseFloat(data.unreconciled_amount);
-
-                        // Enable proceed button if amount is valid
-                        validateAmount();
-                    }
-                })
-                .catch(error => {
-                    tellerLoading.style.display = 'none';
-                    tellerError.textContent = 'Error looking up teller number';
-                    console.error('Teller lookup error:', error);
-                });
-        });
-
-        // Amount validation
-        amountInput.addEventListener('input', validateAmount);
-
-        function validateAmount() {
-            const amount = parseFloat(amountInput.value);
-
-            if (isNaN(amount) || amount <= 0) {
-                amountError.textContent = 'Amount must be greater than zero';
-                proceedBtn.disabled = true;
-                return;
-            }
-
-            if (unreconciledAmount === 0) {
-                amountError.textContent = 'Please enter a valid teller number first';
-                proceedBtn.disabled = true;
-                return;
-            }
-
-            if (amount > unreconciledAmount) {
-                amountError.textContent = `Amount cannot exceed unreconciled amount (₦${unreconciledAmount.toFixed(2)})`;
-                proceedBtn.disabled = true;
-                return;
-            }
-
-            amountError.textContent = '';
-            proceedBtn.disabled = false;
-        }
-
-        // Handle form submission with AJAX to intercept confirmation requests
-        const paymentDetailsForm = document.getElementById('paymentDetailsForm');
-        paymentDetailsForm.addEventListener('submit', function (e) {
-            e.preventDefault();
-
-            // Disable submit button to prevent double submission
-            proceedBtn.disabled = true;
-            proceedBtn.textContent = 'Processing...';
-
-            // Get form data
-            const formData = new FormData(this);
-
-            // Submit via AJAX
-            fetch('process_payment.php', {
-                method: 'POST',
-                body: formData
-            })
-                .then(response => {
-                    const contentType = response.headers.get('content-type');
-                    if (contentType && contentType.includes('application/json')) {
-                        return response.json();
-                    }
-                    // If not JSON, it's the HTML success/error page
-                    return response.text().then(html => ({ html: html }));
-                })
-                .then(data => {
-                    if (data.status === 'confirmation_required') {
-                        // Show confirmation dialog
-                        const confirmed = confirm(data.message);
-
-                        if (confirmed) {
-                            // User confirmed - resubmit with confirmation flag
-                            formData.append('confirm_update', 'yes');
-
-                            // Resubmit the form
-                            fetch('process_payment.php', {
-                                method: 'POST',
-                                body: formData
-                            })
-                                .then(response => response.text())
-                                .then(html => {
-                                    // Write the response HTML to the page
-                                    document.open();
-                                    document.write(html);
-                                    document.close();
-                                })
-                                .catch(error => {
-                                    console.error('Error:', error);
-                                    alert('An error occurred while processing the payment.');
-                                    proceedBtn.disabled = false;
-                                    proceedBtn.textContent = 'OK PROCEED!';
-                                });
-                        } else {
-                            // User cancelled
-                            alert('Payment cancelled by user.');
-                            proceedBtn.disabled = false;
-                            proceedBtn.textContent = 'OK PROCEED!';
-                        }
-                    } else if (data.html) {
-                        // Normal HTML response - display it
-                        document.open();
-                        document.write(data.html);
-                        document.close();
-                    } else {
-                        // Unexpected response
-                        alert('Unexpected response from server.');
-                        proceedBtn.disabled = false;
-                        proceedBtn.textContent = 'OK PROCEED!';
-                    }
-                })
-                .catch(error => {
-                    console.error('Error:', error);
-                    alert('An error occurred while processing the payment.');
-                    proceedBtn.disabled = false;
-                    proceedBtn.textContent = 'OK PROCEED!';
-                });
-        });
-    </script>
-</body>
-
-</html>

easypay/process_payment.php

@@ -1,720 +0,0 @@
-<?php
-/**
- * Process Payment
- * Handle payment allocation and database transactions
- */
-
-require_once 'db_config.php';
-
-// Initialize response
-$success = false;
-$message = '';
-$paymentDetails = [];
-
-try {
-    // Validate POST data
-    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
-        throw new Exception('Invalid request method');
-    }
-
-    $studentId = $_POST['student_id'] ?? '';
-    $studentCode = $_POST['student_code'] ?? '';
-    $selectedFeesJson = $_POST['selected_fees'] ?? '';
-    $tellerNumber = $_POST['teller_number'] ?? '';
-    $bankDescription = $_POST['bank_description'] ?? '';
-    $paymentDate = $_POST['payment_date'] ?? '';
-    $amountToUse = floatval($_POST['amount_to_use'] ?? 0);
-
-    // Validate required fields
-    if (
-        empty($studentId) || empty($studentCode) || empty($selectedFeesJson) ||
-        empty($tellerNumber) || empty($paymentDate) || $amountToUse <= 0
-    ) {
-        throw new Exception('Missing required fields');
-    }
-
-    // Parse selected fees
-    $selectedFees = json_decode($selectedFeesJson, true);
-    if (!is_array($selectedFees) || count($selectedFees) === 0) {
-        throw new Exception('No fees selected');
-    }
-
-    // Sort fees by academic_session ASC, term_of_session ASC (oldest to newest)
-    usort($selectedFees, function ($a, $b) {
-        if ($a['academic_session'] != $b['academic_session']) {
-            return $a['academic_session'] - $b['academic_session'];
-        }
-        return $a['term_of_session'] - $b['term_of_session'];
-    });
-
-    // Re-fetch bank statement to verify
-    $sql = "SELECT
-                bs.id,
-                bs.description,
-                bs.amount_paid,
-                bs.payment_date,
-                COALESCE(fp.total_registered_fee, 0.00) AS registered_amount,
-                (bs.amount_paid - COALESCE(fp.total_registered_fee, 0.00)) AS unreconciled_amount
-            FROM tb_account_bank_statements bs
-            LEFT JOIN (
-                SELECT teller_no, SUM(amount_paid) AS total_registered_fee
-                FROM tb_account_school_fee_payments
-                GROUP BY teller_no
-            ) fp ON SUBSTRING_INDEX(bs.description, ' ', -1) = fp.teller_no
-            WHERE SUBSTRING_INDEX(bs.description, ' ', -1) = :teller_number
-            LIMIT 1";
-
-    $stmt = $pdo->prepare($sql);
-    $stmt->execute(['teller_number' => $tellerNumber]);
-    $bankStatement = $stmt->fetch();
-
-    if (!$bankStatement) {
-        throw new Exception('Bank statement not found for teller number: ' . $tellerNumber);
-    }
-
-    // Verify unreconciled amount
-    if ($amountToUse > $bankStatement['unreconciled_amount']) {
-        throw new Exception('Amount exceeds unreconciled amount on teller');
-    }
-
-    // Extract teller name and number from description
-    $descParts = explode(' ', $bankStatement['description']);
-    $tellerNo = array_pop($descParts);
-    $tellerName = implode(' ', $descParts);
-
-    // Use the oldest fee's session/term for transaction_id
-    $dominantSession = $selectedFees[0]['academic_session'];
-    $dominantTerm = $selectedFees[0]['term_of_session'];
-
-    // Generate transaction_id
-    $transactionId = $studentId . $dominantSession . $paymentDate;
-
-    // STEP 1: Guard check - prevent duplicate payments on same date
-    $sql = "SELECT id, academic_session, term_of_session, total_paid
-            FROM tb_account_school_fee_sum_payments
-            WHERE student_id = :student_id
-              AND payment_date = :payment_date
-            LIMIT 1";
-
-    $stmt = $pdo->prepare($sql);
-    $stmt->execute([
-        'student_id' => $studentId,
-        'payment_date' => $paymentDate
-    ]);
-
-    $existingPayment = $stmt->fetch();
-    $isUpdateMode = false;
-    $existingRecordId = null;
-    $existingTotalPaid = 0;
-
-    if ($existingPayment) {
-        // Check if the existing payment is for the same term
-        if (
-            $existingPayment['term_of_session'] != $dominantTerm ||
-            $existingPayment['academic_session'] != $dominantSession
-        ) {
-            throw new Exception('A payment for this student has already been registered on this date in a different term (Session: ' .
-                $existingPayment['academic_session'] . ', Term: ' . $existingPayment['term_of_session'] . ')');
-        }
-
-        // Same term - need user confirmation to update
-        // This will be handled by JavaScript popup on the client side
-        // For now, check if user has confirmed via POST parameter
-        $userConfirmed = isset($_POST['confirm_update']) && $_POST['confirm_update'] === 'yes';
-
-        if (!$userConfirmed) {
-            // Return a special response that triggers the popup
-            header('Content-Type: application/json');
-            echo json_encode([
-                'status' => 'confirmation_required',
-                'message' => 'A payment for this student already exists on ' . $paymentDate . ' for Session ' .
-                    $existingPayment['academic_session'] . ', Term ' . $existingPayment['term_of_session'] .
-                    '. Current total: ₦' . number_format($existingPayment['total_paid'], 2) .
-                    '. Do you want to update this record by adding ₦' . number_format($totalPaid, 2) . ' to the existing amount?',
-                'existing_payment' => [
-                    'id' => $existingPayment['id'],
-                    'session' => $existingPayment['academic_session'],
-                    'term' => $existingPayment['term_of_session'],
-                    'total_paid' => $existingPayment['total_paid']
-                ]
-            ]);
-            exit;
-        }
-
-        // User confirmed - set update mode
-        $isUpdateMode = true;
-        $existingRecordId = $existingPayment['id'];
-        $existingTotalPaid = floatval($existingPayment['total_paid']);
-    }
-
-    // STEP 2: Allocate payment across fees (oldest to newest)
-    $feeAllocations = [];
-    $remainingAmount = $amountToUse;
-
-    foreach ($selectedFees as $fee) {
-        if ($remainingAmount <= 0) {
-            break;
-        }
-
-        $outstandingAmount = floatval($fee['outstanding_amount']);
-
-        if ($remainingAmount >= $outstandingAmount) {
-            // Fully settle this fee
-            $amountForThisFee = $outstandingAmount;
-            $remainingAmount -= $outstandingAmount;
-        } else {
-            // Partially settle this fee
-            $amountForThisFee = $remainingAmount;
-            $remainingAmount = 0;
-        }
-
-        $feeAllocations[] = [
-            'fee_id' => $fee['fee_id'],
-            'academic_session' => $fee['academic_session'],
-            'term_of_session' => $fee['term_of_session'],
-            'amount' => $amountForThisFee
-        ];
-    }
-
-    if (count($feeAllocations) === 0) {
-        throw new Exception('No fees could be allocated');
-    }
-
-    // Calculate total paid
-    $totalPaid = array_sum(array_column($feeAllocations, 'amount'));
-
-    // STEP 3: Begin database transaction
-    $pdo->beginTransaction();
-
-    try {
-        // Constants
-        $creditBankId = '000001373634585148';
-        $debitBankId = '514297805530965017';
-        $paymodeId = '000001373901891416';
-        $recipientId = 'SS0011441283890434';
-        $paymentBy = 'SS0011441283890434';
-        $createdBy = 'SS0011441283890434';
-        $createdAs = 'school';
-        $paymentStatus = 'Approved';
-        $paymodeCategory = 'BANK';
-
-        // Generate receipt_no (used across all fee records)
-        $receiptNo = $studentCode . $paymentDate;
-
-        // 3a) INSERT into tb_account_school_fee_payments (per fee)
-        foreach ($feeAllocations as $allocation) {
-            $schoolFeePaymentId = $studentCode . $allocation['fee_id'] . $paymentDate; //original code
-
-            //$schoolFeePaymentId = $allocation['fee_id'] . $paymentDate; //Is used to reduce length of id to solve duplicate entry error. 
-
-            $sql = "INSERT INTO tb_account_school_fee_payments (
-                        id, fee_id, student_id, transaction_id, amount_paid,
-                        teller_no, teller_name, credit_bank_id, debit_bank_id,
-                        paymode_id, payment_status, payment_date, recipient_id,
-                        academic_session, term_of_session, payment_by, payment_on
-                    ) VALUES (
-                        :id, :fee_id, :student_id, :transaction_id, :amount_paid,
-                        :teller_no, :teller_name, :credit_bank_id, :debit_bank_id,
-                        :paymode_id, :payment_status, :payment_date, :recipient_id,
-                        :academic_session, :term_of_session, :payment_by, NOW()
-                    )";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute([
-                'id' => $schoolFeePaymentId,
-                'fee_id' => $allocation['fee_id'],
-                'student_id' => $studentId,
-                'transaction_id' => $transactionId,
-                'amount_paid' => $allocation['amount'],
-                'teller_no' => $tellerNo,
-                'teller_name' => $tellerName,
-                'credit_bank_id' => $creditBankId,
-                'debit_bank_id' => $debitBankId,
-                'paymode_id' => $paymodeId,
-                'payment_status' => $paymentStatus,
-                'payment_date' => $paymentDate,
-                'recipient_id' => $recipientId,
-                'academic_session' => $allocation['academic_session'],
-                'term_of_session' => $allocation['term_of_session'],
-                'payment_by' => $paymentBy
-            ]);
-        }
-
-        // 3b) INSERT or UPDATE tb_account_school_fee_sum_payments (single record)
-        if ($isUpdateMode) {
-            // Update existing record
-            $sql = "UPDATE tb_account_school_fee_sum_payments
-                    SET total_paid = total_paid + :additional_amount,
-                        registered_on = NOW()
-                    WHERE id = :id";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute([
-                'additional_amount' => $totalPaid,
-                'id' => $existingRecordId
-            ]);
-        } else {
-            // Insert new record
-            $sumPaymentsId = $studentId . $dominantSession . $paymentDate;
-
-            $sql = "INSERT INTO tb_account_school_fee_sum_payments (
-                        id, student_id, total_paid, paymode_id, payment_date,
-                        credit_bank_id, debit_bank_id, transaction_id, status,
-                        academic_session, term_of_session, registered_by, registered_on
-                    ) VALUES (
-                        :id, :student_id, :total_paid, :paymode_id, :payment_date,
-                        :credit_bank_id, :debit_bank_id, :transaction_id, :status,
-                        :academic_session, :term_of_session, :registered_by, NOW()
-                    )";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute([
-                'id' => $sumPaymentsId,
-                'student_id' => $studentId,
-                'total_paid' => $totalPaid,
-                'paymode_id' => $paymodeId,
-                'payment_date' => $paymentDate,
-                'credit_bank_id' => $creditBankId,
-                'debit_bank_id' => $debitBankId,
-                'transaction_id' => $transactionId,
-                'status' => $paymentStatus,
-                'academic_session' => $dominantSession,
-                'term_of_session' => $dominantTerm,
-                'registered_by' => $createdBy
-            ]);
-        }
-
-        // 3c) INSERT into tb_account_student_payments (per fee)
-        foreach ($feeAllocations as $allocation) {
-            // Get current payment_to_date (sum of all previous payments for this fee/session/term)
-            $sql = "SELECT SUM(payment_to_date) AS current_total
-                    FROM tb_account_student_payments
-                    WHERE student_id = :student_id
-                      AND fee_id = :fee_id
-                      AND academic_session = :academic_session
-                      AND term_of_session = :term_of_session";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute([
-                'student_id' => $studentId,
-                'fee_id' => $allocation['fee_id'],
-                'academic_session' => $allocation['academic_session'],
-                'term_of_session' => $allocation['term_of_session']
-            ]);
-
-            $currentPayment = $stmt->fetch();
-            $currentTotal = floatval($currentPayment['current_total'] ?? 0);
-            $newPaymentToDate = $allocation['amount'];
-            //$newPaymentToDate = $currentTotal + $allocation['amount']; --Old code that added new payment amount to current total (total before payment)
-
-            $studentPaymentId = $studentCode . $allocation['fee_id'] . $paymentDate;
-
-            $sql = "INSERT INTO tb_account_student_payments (
-                        id, fee_id, student_id, payment_to_date, transaction_id,
-                        academic_session, term_of_session, created_by, created_as, created_on
-                    ) VALUES (
-                        :id, :fee_id, :student_id, :payment_to_date, :transaction_id,
-                        :academic_session, :term_of_session, :created_by, :created_as, NOW()
-                    )";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute([
-                'id' => $studentPaymentId,
-                'fee_id' => $allocation['fee_id'],
-                'student_id' => $studentId,
-                'payment_to_date' => $newPaymentToDate,
-                'transaction_id' => $transactionId,
-                'academic_session' => $allocation['academic_session'],
-                'term_of_session' => $allocation['term_of_session'],
-                'created_by' => $createdBy,
-                'created_as' => $createdAs
-            ]);
-        }
-
-        // 3d) INSERT into tb_account_payment_registers (per fee)
-        foreach ($feeAllocations as $allocation) {
-            $paymentRegisterId = $studentCode . $allocation['fee_id'] . $paymentDate;
-
-            $sql = "INSERT INTO tb_account_payment_registers (
-                        id, fee_id, student_id, amount_paid, amount_due,
-                        receipt_no, recipient_id, payment_date, paymode_category,
-                        transaction_id, academic_session, term_of_session,
-                        created_by, created_as, created_on
-                    ) VALUES (
-                        :id, :fee_id, :student_id, :amount_paid, :amount_due,
-                        :receipt_no, :recipient_id, :payment_date, :paymode_category,
-                        :transaction_id, :academic_session, :term_of_session,
-                        :created_by, :created_as, NOW()
-                    )";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute([
-                'id' => $paymentRegisterId,
-                'fee_id' => $allocation['fee_id'],
-                'student_id' => $studentId,
-                'amount_paid' => $allocation['amount'],
-                'amount_due' => $allocation['amount'],
-                'receipt_no' => $receiptNo,
-                'recipient_id' => $recipientId,
-                'payment_date' => $paymentDate,
-                'paymode_category' => $paymodeCategory,
-                'transaction_id' => $transactionId,
-                'academic_session' => $allocation['academic_session'],
-                'term_of_session' => $allocation['term_of_session'],
-                'created_by' => $createdBy,
-                'created_as' => $createdAs
-            ]);
-        }
-
-        // 3e) UPDATE tb_student_logistics
-        // Group allocations by session/term to update specific records
-        $sessionTermTotals = [];
-        foreach ($feeAllocations as $allocation) {
-            $key = $allocation['academic_session'] . '-' . $allocation['term_of_session'];
-            if (!isset($sessionTermTotals[$key])) {
-                $sessionTermTotals[$key] = [
-                    'academic_session' => $allocation['academic_session'],
-                    'term_of_session' => $allocation['term_of_session'],
-                    'total' => 0
-                ];
-            }
-            $sessionTermTotals[$key]['total'] += $allocation['amount'];
-        }
-
-        // Update each session/term record
-        foreach ($sessionTermTotals as $st) {
-            $sql = "UPDATE tb_student_logistics
-                    SET fees_outstanding = GREATEST(0, fees_outstanding - :total_paid)
-                    WHERE student_id = :student_id
-                      AND academic_session = :academic_session
-                      AND term_of_session = :term_of_session";
-
-            $stmt = $pdo->prepare($sql);
-            $stmt->execute([
-                'total_paid' => $st['total'],
-                'student_id' => $studentId,
-                'academic_session' => $st['academic_session'],
-                'term_of_session' => $st['term_of_session']
-            ]);
-        }
-
-        // Commit transaction
-        $pdo->commit();
-
-        $success = true;
-        $message = 'Payment processed successfully!';
-
-        // Fetch fee descriptions for display
-        $feeIds = array_column($feeAllocations, 'fee_id');
-        $placeholders = implode(',', array_fill(0, count($feeIds), '?'));
-
-        $sql = "SELECT id, description FROM tb_account_school_fees WHERE id IN ($placeholders)";
-        $stmt = $pdo->prepare($sql);
-        $stmt->execute($feeIds);
-        $feeDescriptions = $stmt->fetchAll(PDO::FETCH_KEY_PAIR);
-
-        // Prepare payment details for display
-        foreach ($feeAllocations as $key => $allocation) {
-            $feeAllocations[$key]['description'] = $feeDescriptions[$allocation['fee_id']] ?? 'Unknown Fee';
-        }
-        $paymentDetails = [
-            'student_code' => $studentCode,
-            'payment_date' => $paymentDate,
-            'teller_no' => $tellerNo,
-            'teller_name' => $tellerName,
-            'total_paid' => $totalPaid,
-            'receipt_no' => $receiptNo,
-            'transaction_id' => $transactionId,
-            'allocations' => $feeAllocations,
-            'remaining_unreconciled' => $bankStatement['unreconciled_amount'] - $totalPaid
-        ];
-
-    } catch (Exception $e) {
-        $pdo->rollBack();
-        throw new Exception('Transaction failed: ' . $e->getMessage());
-    }
-
-} catch (Exception $e) {
-    $success = false;
-    $message = $e->getMessage();
-}
-
-// Fetch student name for display
-$studentName = '';
-if (!empty($studentId)) {
-    try {
-        $sql = "SELECT CONCAT(last_name, ' ', first_name, ' ', COALESCE(other_name, '')) AS full_name
-                FROM tb_student_registrations
-                WHERE id = :student_id";
-        $stmt = $pdo->prepare($sql);
-        $stmt->execute(['student_id' => $studentId]);
-        $result = $stmt->fetch();
-        $studentName = $result['full_name'] ?? 'Unknown Student';
-    } catch (Exception $e) {
-        $studentName = 'Unknown Student';
-    }
-}
-?>
-<!DOCTYPE html>
-<html lang="en">
-
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Payment Processing Result</title>
-    <style>
-        * {
-            margin: 0;
-            padding: 0;
-            box-sizing: border-box;
-        }
-
-        body {
-            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            min-height: 100vh;
-            padding: 20px;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-        }
-
-        .container {
-            max-width: 800px;
-            width: 100%;
-            background: white;
-            border-radius: 12px;
-            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
-            padding: 40px;
-        }
-
-        .success-icon {
-            width: 80px;
-            height: 80px;
-            margin: 0 auto 20px;
-            background: #28a745;
-            border-radius: 50%;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            color: white;
-            font-size: 48px;
-        }
-
-        .error-icon {
-            width: 80px;
-            height: 80px;
-            margin: 0 auto 20px;
-            background: #dc3545;
-            border-radius: 50%;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            color: white;
-            font-size: 48px;
-        }
-
-        h1 {
-            text-align: center;
-            color: #333;
-            margin-bottom: 10px;
-            font-size: 28px;
-        }
-
-        .message {
-            text-align: center;
-            color: #666;
-            margin-bottom: 30px;
-            font-size: 16px;
-        }
-
-        .details-section {
-            background: #f8f9fa;
-            padding: 20px;
-            border-radius: 8px;
-            margin-bottom: 20px;
-        }
-
-        .details-section h2 {
-            color: #333;
-            margin-bottom: 15px;
-            font-size: 20px;
-        }
-
-        .detail-row {
-            display: flex;
-            justify-content: space-between;
-            padding: 10px 0;
-            border-bottom: 1px solid #ddd;
-        }
-
-        .detail-row:last-child {
-            border-bottom: none;
-        }
-
-        .detail-label {
-            font-weight: 600;
-            color: #555;
-        }
-
-        .detail-value {
-            color: #333;
-            text-align: right;
-        }
-
-        table {
-            width: 100%;
-            border-collapse: collapse;
-            margin-top: 15px;
-        }
-
-        th,
-        td {
-            padding: 12px;
-            text-align: left;
-            border-bottom: 1px solid #ddd;
-        }
-
-        th {
-            background-color: #667eea;
-            color: white;
-            font-weight: 600;
-        }
-
-        .amount {
-            text-align: right;
-            font-family: 'Courier New', monospace;
-        }
-
-        .total-row {
-            font-weight: bold;
-            background-color: #f0f0f0;
-        }
-
-        .btn {
-            display: inline-block;
-            padding: 12px 30px;
-            border: none;
-            border-radius: 6px;
-            font-size: 16px;
-            font-weight: 600;
-            cursor: pointer;
-            text-decoration: none;
-            transition: all 0.3s;
-            text-align: center;
-        }
-
-        .btn-primary {
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            color: white;
-        }
-
-        .btn-primary:hover {
-            transform: translateY(-2px);
-            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
-        }
-
-        .actions {
-            text-align: center;
-            margin-top: 30px;
-        }
-
-        .highlight {
-            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-            color: white;
-            padding: 15px;
-            border-radius: 8px;
-            margin-bottom: 20px;
-        }
-
-        .highlight p {
-            margin: 5px 0;
-        }
-    </style>
-</head>
-
-<body>
-    <div class="container">
-        <?php if ($success): ?>
-            <div class="success-icon">✓</div>
-            <h1>Payment Processed Successfully!</h1>
-            <p class="message"><?php echo htmlspecialchars($message); ?></p>
-
-            <div class="highlight">
-                <p><strong>Student:</strong> <?php echo htmlspecialchars($studentName); ?></p>
-                <p><strong>Receipt No:</strong> <?php echo htmlspecialchars($paymentDetails['receipt_no']); ?></p>
-                <p><strong>Transaction ID:</strong> <?php echo htmlspecialchars($paymentDetails['transaction_id']); ?></p>
-            </div>
-
-            <div class="details-section">
-                <h2>Payment Details</h2>
-                <div class="detail-row">
-                    <span class="detail-label">Payment Date:</span>
-                    <span class="detail-value"><?php echo htmlspecialchars($paymentDetails['payment_date']); ?></span>
-                </div>
-                <div class="detail-row">
-                    <span class="detail-label">Teller Number:</span>
-                    <span class="detail-value"><?php echo htmlspecialchars($paymentDetails['teller_no']); ?></span>
-                </div>
-                <div class="detail-row">
-                    <span class="detail-label">Bank Narration:</span>
-                    <span class="detail-value"><?php echo htmlspecialchars($paymentDetails['teller_name']); ?></span>
-                </div>
-                <div class="detail-row">
-                    <span class="detail-label">Total Amount Used:</span>
-                    <span class="detail-value">₦<?php echo number_format($paymentDetails['total_paid'], 2); ?></span>
-                </div>
-                <div class="detail-row">
-                    <span class="detail-label">Remaining Unreconciled on Teller:</span>
-                    <span
-                        class="detail-value">₦<?php echo number_format($paymentDetails['remaining_unreconciled'], 2); ?></span>
-                </div>
-            </div>
-
-            <div class="details-section">
-                <h2>Fees Settled</h2>
-                <table>
-                    <thead>
-                        <tr>
-                            <th>Fee Description</th>
-                            <th width="100">Session</th>
-                            <th width="80">Term</th>
-                            <th width="120" class="amount">Amount Paid</th>
-                        </tr>
-                    </thead>
-                    <tbody>
-                        <?php foreach ($paymentDetails['allocations'] as $allocation): ?>
-                            <tr>
-                                <td><?php echo htmlspecialchars($allocation['description']); ?></td>
-                                <td><?php echo htmlspecialchars($allocation['academic_session']); ?></td>
-                                <td><?php echo htmlspecialchars($allocation['term_of_session']); ?></td>
-                                <td class="amount">₦<?php echo number_format($allocation['amount'], 2); ?></td>
-                            </tr>
-                        <?php endforeach; ?>
-                        <tr class="total-row">
-                            <td colspan="3" style="text-align: right;">Total:</td>
-                            <td class="amount">₦<?php echo number_format($paymentDetails['total_paid'], 2); ?></td>
-                        </tr>
-                    </tbody>
-                </table>
-            </div>
-
-        <?php else: ?>
-            <div class="error-icon">✗</div>
-            <h1>Payment Processing Failed</h1>
-            <p class="message" style="color: #dc3545;"><?php echo htmlspecialchars($message); ?></p>
-
-            <div class="details-section">
-                <h2>Error Details</h2>
-                <p>The payment could not be processed. No changes were made to the database.</p>
-                <p style="margin-top: 10px;"><strong>Error:</strong> <?php echo htmlspecialchars($message); ?></p>
-            </div>
-        <?php endif; ?>
-
-        <div class="actions">
-            <a href="index.php" class="btn btn-primary">Return to Main Page</a>
-        </div>
-    </div>
-</body>
-
-</html>