Delete app.py

app.py

@@ -1,250 +0,0 @@
-import streamlit as st
-from flask import Flask
-from flask_sqlalchemy import SQLAlchemy
-from werkzeug.security import generate_password_hash, check_password_hash
-import os
-
-# Initialize Flask app
-app = Flask(__name__)
-app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///erp_construction.db'
-app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
-db = SQLAlchemy(app)
-
-# Define models (User, Role, Project, Inventory, Employee)
-class Role(db.Model):
-    id = db.Column(db.Integer, primary_key=True)
-    name = db.Column(db.String(50), unique=True, nullable=False)
-
-class User(db.Model):
-    id = db.Column(db.Integer, primary_key=True)
-    username = db.Column(db.String(50), unique=True, nullable=False)
-    password_hash = db.Column(db.String(128), nullable=False)
-    role_id = db.Column(db.Integer, db.ForeignKey('role.id'), nullable=False)
-    role = db.relationship('Role', backref='users')
-    password_changed = db.Column(db.Boolean, default=False)
-
-    def set_password(self, password):
-        self.password_hash = generate_password_hash(password)
-
-    def check_password(self, password):
-        return check_password_hash(self.password_hash, password)
-
-class Project(db.Model):
-    id = db.Column(db.Integer, primary_key=True)
-    name = db.Column(db.String(100), nullable=False)
-    description = db.Column(db.String(500), nullable=False)
-    budget = db.Column(db.Float, nullable=False)
-
-class Inventory(db.Model):
-    id = db.Column(db.Integer, primary_key=True)
-    item_name = db.Column(db.String(100), nullable=False)
-    quantity = db.Column(db.Integer, nullable=False)
-    unit_price = db.Column(db.Float, nullable=False)
-
-class Employee(db.Model):
-    id = db.Column(db.Integer, primary_key=True)
-    name = db.Column(db.String(100), nullable=False)
-    role = db.Column(db.String(100), nullable=False)
-    salary = db.Column(db.Float, nullable=False)
-
-# Initialize the database
-def init_db():
-    with app.app_context():
-        db.create_all()
-        # Add default roles if they don't exist
-        if not Role.query.filter_by(name='Admin').first():
-            admin_role = Role(name='Admin')
-            db.session.add(admin_role)
-        if not Role.query.filter_by(name='Materials Manager').first():
-            materials_role = Role(name='Materials Manager')
-            db.session.add(materials_role)
-        if not Role.query.filter_by(name='Procurement Manager').first():
-            procurement_role = Role(name='Procurement Manager')
-            db.session.add(procurement_role)
-        if not Role.query.filter_by(name='HR Manager').first():
-            hr_role = Role(name='HR Manager')
-            db.session.add(hr_role)
-        db.session.commit()
-
-        # Add default admin user if it doesn't exist
-        if not User.query.filter_by(username='Admin').first():
-            admin_role = Role.query.filter_by(name='Admin').first()
-            admin_user = User(username='Admin', role_id=admin_role.id)
-            admin_user.set_password('Admin')  # Set default password
-            db.session.add(admin_user)
-            db.session.commit()
-
-# Login Page
-def login():
-    st.title("Login")
-    username = st.text_input("Username", key="login_username")
-    password = st.text_input("Password", type="password", key="login_password")
-    if st.button("Login", key="login_button"):
-        with app.app_context():
-            user = User.query.filter_by(username=username).first()
-            if user and user.check_password(password):
-                st.session_state['user_id'] = user.id
-                st.session_state['role'] = user.role.name
-                st.success("Logged in successfully!")
-                if user.role.name != 'Admin' and not user.password_changed:
-                    st.session_state['page'] = 'Change Password'
-                else:
-                    st.session_state['page'] = 'Home'
-            else:
-                st.error("Invalid username or password.")
-
-# Home Page
-def home():
-    st.title("Home")
-    st.write("Welcome to the Construction ERP System!")
-    st.write("Use the sidebar to navigate to different sections.")
-
-# Projects Page (Admin Only)
-def projects():
-    st.title("Projects Management")
-    if st.session_state['role'] != 'Admin':
-        st.error("You do not have permission to access this page.")
-        return
-
-    name = st.text_input("Project Name", key="project_name")
-    description = st.text_area("Description", key="project_description")
-    budget = st.number_input("Budget", step=0.01, key="project_budget")
-    if st.button("Add Project", key="add_project_button"):
-        with app.app_context():
-            new_project = Project(name=name, description=description, budget=budget)
-            db.session.add(new_project)
-            db.session.commit()
-            st.success("Project added successfully!")
-
-    with app.app_context():
-        projects = Project.query.all()
-        st.write("### Project List")
-        for project in projects:
-            st.write(f"**Name:** {project.name}, **Description:** {project.description}, **Budget:** ${project.budget}")
-
-# Inventory Page (Materials Manager Only)
-def inventory():
-    st.title("Inventory Management")
-    if st.session_state['role'] != 'Materials Manager':
-        st.error("You do not have permission to access this page.")
-        return
-
-    item_name = st.text_input("Item Name", key="item_name")
-    quantity = st.number_input("Quantity", step=1, key="item_quantity")
-    unit_price = st.number_input("Unit Price", step=0.01, key="item_unit_price")
-    if st.button("Add Item", key="add_item_button"):
-        with app.app_context():
-            new_item = Inventory(item_name=item_name, quantity=quantity, unit_price=unit_price)
-            db.session.add(new_item)
-            db.session.commit()
-            st.success("Inventory item added successfully!")
-
-    with app.app_context():
-        inventory_items = Inventory.query.all()
-        st.write("### Inventory List")
-        for item in inventory_items:
-            st.write(f"**Item Name:** {item.item_name}, **Quantity:** {item.quantity}, **Unit Price:** ${item.unit_price}")
-
-# Employees Page (Admin Only)
-def employees():
-    st.title("Employee Management")
-    if st.session_state['role'] != 'Admin':
-        st.error("You do not have permission to access this page.")
-        return
-
-    name = st.text_input("Employee Name", key="employee_name")
-    role = st.selectbox("Role", ["Materials Manager", "Procurement Manager", "HR Manager"], key="employee_role")
-    salary = st.number_input("Salary", step=0.01, key="employee_salary")
-    username = st.text_input("Username", key="employee_username")
-    password = st.text_input("Password", type="password", key="employee_password")
-    if st.button("Add Employee", key="add_employee_button"):
-        with app.app_context():
-            new_employee = Employee(name=name, role=role, salary=salary)
-            db.session.add(new_employee)
-            
-            employee_role = Role.query.filter_by(name=role).first()
-            if not employee_role:
-                st.error(f'Role "{role}" does not exist.')
-                return
-            
-            new_user = User(username=username, role_id=employee_role.id)
-            new_user.set_password(password)  # Set initial password
-            db.session.add(new_user)
-            
-            db.session.commit()
-            st.success("Employee added successfully!")
-
-    with app.app_context():
-        employees = Employee.query.all()
-        st.write("### Employee List")
-        for employee in employees:
-            st.write(f"**Name:** {employee.name}, **Role:** {employee.role}, **Salary:** ${employee.salary}")
-
-# Change Password Page
-def change_password():
-    st.title("Change Password")
-    new_password = st.text_input("New Password", type="password", key="new_password")
-    confirm_password = st.text_input("Confirm Password", type="password", key="confirm_password")
-    if st.button("Change Password", key="change_password_button"):
-        if new_password != confirm_password:
-            st.error("Passwords do not match.")
-            return
-        
-        with app.app_context():
-            user = User.query.get(st.session_state['user_id'])
-            user.set_password(new_password)
-            user.password_changed = True  # Mark password as changed
-            db.session.commit()
-            
-            st.success("Password changed successfully!")
-            st.session_state['page'] = 'Home'
-
-# Main App
-def main():
-    if 'user_id' not in st.session_state:
-        st.session_state['user_id'] = None
-    if 'role' not in st.session_state:
-        st.session_state['role'] = None
-    if 'page' not in st.session_state:
-        st.session_state['page'] = 'Login'
-
-    # Initialize the database
-    init_db()
-
-    # Navigation
-    if st.session_state['page'] == 'Login':
-        login()
-    elif st.session_state['page'] == 'Home':
-        home()
-    elif st.session_state['page'] == 'Projects':
-        projects()
-    elif st.session_state['page'] == 'Inventory':
-        inventory()
-    elif st.session_state['page'] == 'Employees':
-        employees()
-    elif st.session_state['page'] == 'Change Password':
-        change_password()
-
-    # Sidebar Navigation
-    if st.session_state['user_id']:
-        st.sidebar.title("Navigation")
-        if st.sidebar.button("Home", key="sidebar_home"):
-            st.session_state['page'] = 'Home'
-        if st.session_state['role'] == 'Admin':
-            if st.sidebar.button("Projects", key="sidebar_projects"):
-                st.session_state['page'] = 'Projects'
-            if st.sidebar.button("Employees", key="sidebar_employees"):
-                st.session_state['page'] = 'Employees'
-        if st.session_state['role'] == 'Materials Manager':
-            if st.sidebar.button("Inventory", key="sidebar_inventory"):
-                st.session_state['page'] = 'Inventory'
-        if st.sidebar.button("Change Password", key="sidebar_change_password"):
-            st.session_state['page'] = 'Change Password'
-        if st.sidebar.button("Logout", key="sidebar_logout"):
-            st.session_state['user_id'] = None
-            st.session_state['role'] = None
-            st.session_state['page'] = 'Login'
-            st.experimental_rerun()
-
-if __name__ == '__main__':
-    main()