import axios from 'axios';
import { API_BASE_URL } from '@/config';
import apiClient from '@/lib/api/axios-instance';
import { createHeaders } from '@/lib/api';
import { AttendanceRecord, AttendanceUploadRequest, AttendanceResponse } from '@/types';

class AttendanceApi {
  private baseUrl = `/api/Attendance`;

  async getAll(): Promise<AttendanceRecord[]> {
    try {
      console.log('AttendanceApi: Fetching all attendance records from', this.baseUrl);
      const response = await apiClient.get(this.baseUrl);
      
      console.log('AttendanceApi: Response status', response.status);
      
      if (!response.data) {
        console.warn('AttendanceApi: No data in response');
        return [];
      }
      
      if (!Array.isArray(response.data)) {
        console.warn('AttendanceApi: Response is not an array', response.data);
        return [];
      }
      
      return response.data;
    } catch (error) {
      console.error('Error fetching attendance records:', error);
      return [];
    }
  }

  async getByEmployeeId(employeeId: number): Promise<AttendanceRecord[]> {
    try {
      const response = await apiClient.get(`${this.baseUrl}/employee/${employeeId}`);
      return response.data || [];
    } catch (error) {
      console.error(`Error fetching attendance for employee ${employeeId}:`, error);
      return [];
    }
  }

  async getByMonth(month: number, year: number): Promise<AttendanceRecord[]> {
    try {
      const response = await apiClient.get(`${this.baseUrl}/month/${year}/${month}`);
      return response.data || [];
    } catch (error) {
      console.error(`Error fetching attendance for ${month}/${year}:`, error);
      return [];
    }
  }

  async getToday(employeeId: number): Promise<AttendanceRecord | null> {
    try {
      const response = await apiClient.get(`${this.baseUrl}/today/${employeeId}`);
      return response.data || null;
    } catch (error) {
      console.error(`Error fetching today's attendance for employee ${employeeId}:`, error);
      return null;
    }
  }

  async checkIn(employeeId: number): Promise<AttendanceRecord> {
    const response = await apiClient.post(`${this.baseUrl}/check-in`, { employeeId });
    return response.data;
  }

  async checkOut(employeeId: number): Promise<AttendanceRecord> {
    const response = await apiClient.post(`${this.baseUrl}/check-out`, { employeeId });
    return response.data;
  }

  async create(record: AttendanceRecord): Promise<AttendanceRecord | null> {
    try {
      const response = await apiClient.post(this.baseUrl, record);
      return response.data;
    } catch (error) {
      console.error('Error creating attendance record:', error);
      throw error;
    }
  }

  async update(id: number, record: AttendanceRecord): Promise<AttendanceRecord | null> {
    try {
      const response = await apiClient.put(`${this.baseUrl}/${id}`, record);
      return response.data;
    } catch (error) {
      console.error(`Error updating attendance record ${id}:`, error);
      throw error;
    }
  }

  async uploadBulk(data: AttendanceUploadRequest): Promise<AttendanceResponse> {
    try {
      const response = await apiClient.post(`${this.baseUrl}/bulk`, data);
      return response.data;
    } catch (error) {
      console.error('Error uploading bulk attendance:', error);
      throw error;
    }
  }
  
  // Method to handle Excel file upload
  async uploadExcel(file: File): Promise<AttendanceResponse> {
    try {
      const formData = new FormData();
      formData.append('File', file);
      
      const response = await apiClient.post(`${this.baseUrl}/upload-excel`, formData);
      
      return response.data;
    } catch (error) {
      console.error('Error uploading attendance Excel file:', error);
      throw error;
    }
  }

  async delete(id: number): Promise<void> {
    try {
      await apiClient.delete(`${this.baseUrl}/${id}`);
    } catch (error) {
      console.error(`Error deleting attendance record ${id}:`, error);
      throw error;
    }
  }
}

export const attendanceApi = new AttendanceApi();