Merge pull request #2723 from pratyanj/bank_managment_system_pratyanj

Bank managment system pratyanj

Author: geekcomputers

bank_managment_system/QTFrontend.py

@@ -4,6 +4,20 @@
 import backend
 backend.connect_database()
 employee_data = None
+# Page Constants (for reference)
+HOME_PAGE = 0
+ADMIN_PAGE = 1
+EMPLOYEE_PAGE = 2
+ADMIN_MENU_PAGE = 3
+ADD_EMPLOYEE_PAGE = 4
+UPDATE_EMPLOYEE_PAGE1 = 5
+UPDATE_EMPLOYEE_PAGE2 = 6
+EMPLOYEE_LIST_PAGE = 7
+ADMIN_TOTAL_MONEY = 8
+# -------------------------------------------------------------------------------------------------------------
+# === Reusable UI Component Functions ===
+# -------------------------------------------------------------------------------------------------------------
+
 def create_styled_frame(parent, min_size=None, style=""):
     """Create a styled QFrame with optional minimum size and custom style."""
     frame = QtWidgets.QFrame(parent)
@@ -133,7 +147,23 @@ def on_reject():
     button_box.rejected.connect(on_reject)
 
     dialog.exec_()
+# -------------------------------------------------------------------------------------------------------------
+# === Page Creation Functions ==
+# -------------------------------------------------------------------------------------------------------------
+def create_page_with_header(parent, title_text):
+    """Create a page with a styled header and return the page + main layout."""
+    page = QtWidgets.QWidget(parent)
+    main_layout = QtWidgets.QVBoxLayout(page)
+    main_layout.setContentsMargins(20, 20, 20, 20)
+    main_layout.setSpacing(20)
 
+    header_frame = create_styled_frame(page, style="background-color: #ffffff; border-radius: 10px; padding: 10px;")
+    header_layout = QtWidgets.QVBoxLayout(header_frame)
+    title_label = create_styled_label(header_frame, title_text, font_size=30)
+    header_layout.addWidget(title_label, 0, QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop)
+    
+    main_layout.addWidget(header_frame, 0, QtCore.Qt.AlignTop)
+    return page, main_layout
 def get_employee_name(parent, name_field_text="Enter Employee Name"):
     page, main_layout = create_page_with_header(parent, "Employee Data Update")
 
@@ -170,7 +200,7 @@ def on_search_button_clicked():
                 cur.execute("SELECT * FROM staff WHERE name = ?", (entered_name,))
                 employee_data = cur.fetchone()
                 print(f"Employee Data: {employee_data}")
-                parent.setCurrentIndex(6)
+                parent.setCurrentIndex(UPDATE_EMPLOYEE_PAGE2)
 
             # if employee_data:
             # QtWidgets.QMessageBox.information(parent, "Employee Found",
@@ -191,7 +221,7 @@ def on_search_button_clicked():
 
 def create_login_page(parent ,title, name_field_text="Name :", password_field_text="Password :", submit_text="Submit",):
     """Create a login page with a title, name and password fields, and a submit button."""
-    page, main_layout = create_page_with_header(parent, "Admin Menu")
+    page, main_layout = create_page_with_header(parent, title)
 
     # Content frame
     content_frame = create_styled_frame(page)
@@ -293,21 +323,6 @@ def create_home_page(parent, on_admin_clicked, on_employee_clicked, on_exit_clic
 
     return page
 
-def create_page_with_header(parent, title_text):
-    """Create a page with a styled header and return the page + main layout."""
-    page = QtWidgets.QWidget(parent)
-    main_layout = QtWidgets.QVBoxLayout(page)
-    main_layout.setContentsMargins(20, 20, 20, 20)
-    main_layout.setSpacing(20)
-
-    header_frame = create_styled_frame(page, style="background-color: #ffffff; border-radius: 10px; padding: 10px;")
-    header_layout = QtWidgets.QVBoxLayout(header_frame)
-    title_label = create_styled_label(header_frame, title_text, font_size=30)
-    header_layout.addWidget(title_label, 0, QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop)
-    
-    main_layout.addWidget(header_frame, 0, QtCore.Qt.AlignTop)
-    return page, main_layout
-
 def create_admin_menu_page(parent):
     page, main_layout = create_page_with_header(parent, "Admin Menu")
 
@@ -342,7 +357,7 @@ def create_add_employee_page(parent, title, submit_text="Submit",update_btn:bool
 
     form_frame = create_styled_frame(content_frame, min_size=(340, 200), style="background-color: #ffffff; border-radius: 15px; padding: 10px;")
     form_layout = QtWidgets.QVBoxLayout(form_frame)
-    form_layout.setSpacing(20)
+    form_layout.setSpacing(10)
 
     # Define input fields
     fields = ["Name :", "Password :", "Salary :", "Position :"]
@@ -378,10 +393,141 @@ def create_add_employee_page(parent, title, submit_text="Submit",update_btn:bool
     form_layout.addWidget(button_frame)
     content_layout.addWidget(form_frame, 0, QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter)
     main_layout.addWidget(content_frame)
+    back_btn = QtWidgets.QPushButton("Back", content_frame)
+    back_btn.setStyleSheet("""
+        QPushButton {
+            background-color: #6c757d;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            padding: 8px 16px;
+            font-size: 14px;
+        }
+        QPushButton:hover {
+            background-color: #5a6268;
+        }
+    """)
+    back_btn.clicked.connect(lambda: parent.setCurrentIndex(ADMIN_MENU_PAGE))
+    main_layout.addWidget(back_btn, 0,alignment=QtCore.Qt.AlignLeft)
     if update_btn:
         return page, name_edit, password_edit, salary_edit, position_edit, update_button
     else:
         return page, name_edit, password_edit, salary_edit, position_edit, submit_button  # Unpack as name_edit, password_edit, etc.
+    
+def show_employee_list_page(parent, title):
+    page, main_layout = create_page_with_header(parent, title)
+    
+    content_frame = create_styled_frame(page, style="background-color: #f9f9f9; border-radius: 10px; padding: 15px;")
+    content_frame.setSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Expanding)
+    content_layout = QtWidgets.QVBoxLayout(content_frame)
+
+    # Table frame
+    table_frame = create_styled_frame(content_frame, style="background-color: #ffffff;  border-radius: 8px; padding: 10px;")
+    table_layout = QtWidgets.QVBoxLayout(table_frame)
+    table_layout.setSpacing(0)
+
+    # Header row
+    header_frame = create_styled_frame(table_frame, style="background-color: #f5f5f5; ; border-radius: 8px 8px 0 0; padding: 10px;")
+    header_layout = QtWidgets.QHBoxLayout(header_frame)
+    header_layout.setContentsMargins(10, 5, 10, 5)
+    headers = ["Name", "Position", "Salary"]
+    for i, header in enumerate(headers):
+        header_label = QtWidgets.QLabel(header, header_frame)
+        header_label.setStyleSheet("font-weight: bold; font-size: 14px; color: #333333; padding: 0px; margin: 0px;")
+        if i == 2:  # Right-align salary header
+            header_label.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
+        else:
+            header_label.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
+        header_layout.addWidget(header_label, 1 if i < 2 else 0)  # Stretch name and position, not salary
+    table_layout.addWidget(header_frame)
+
+    # Employee rows
+    employees = backend.show_employees_for_update()
+    for row, employee in enumerate(employees):
+        row_frame = create_styled_frame(table_frame, style=f"background-color: {'#fafafa' if row % 2 else '#ffffff'}; padding: 8px;")
+        row_layout = QtWidgets.QHBoxLayout(row_frame)
+        row_layout.setContentsMargins(10, 5, 10, 5)
+
+        # Name
+        name_label = QtWidgets.QLabel(employee[0], row_frame)
+        name_label.setStyleSheet("font-size: 14px; color: #333333; padding: 0px; margin: 0px;")
+        name_label.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
+        row_layout.addWidget(name_label, 1)
+
+        # Position
+        position_label = QtWidgets.QLabel(employee[3], row_frame)
+        position_label.setStyleSheet("font-size: 14px; color: #333333; padding: 0px; margin: 0px;")
+        position_label.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
+        row_layout.addWidget(position_label, 1)
+
+        # Salary (formatted as currency)
+        salary_label = QtWidgets.QLabel(f"${float(employee[2]):,.2f}", row_frame)
+        salary_label.setStyleSheet("font-size: 14px; color: #333333; padding: 0px; margin: 0px;")
+        salary_label.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
+        row_layout.addWidget(salary_label, 0)
+
+        table_layout.addWidget(row_frame)
+
+    # Add stretch to prevent rows from expanding vertically
+    table_layout.addStretch()
+    
+    # Back button
+    back_button = QtWidgets.QPushButton("Back", content_frame)
+    back_button.setStyleSheet("""
+        QPushButton {
+            background-color: #6c757d;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            padding: 8px 16px;
+            font-size: 14px;
+        }
+        QPushButton:hover {
+            background-color: #5a6268;
+        }
+    """)
+    back_button.clicked.connect(lambda: parent.setCurrentIndex(ADMIN_MENU_PAGE))
+    
+    content_layout.addWidget(table_frame)
+    main_layout.addWidget(back_button, alignment=QtCore.Qt.AlignLeft)
+    main_layout.addWidget(content_frame)
+    
+    return page
+def show_total_money(parent, title):
+    page, main_layout = create_page_with_header(parent, title)
+
+    content_frame = create_styled_frame(page, style="background-color: #f9f9f9; border-radius: 10px; padding: 15px;")
+    content_layout = QtWidgets.QVBoxLayout(content_frame)
+    content_layout.setProperty("spacing", 10)
+    all = backend.all_money()
+
+    # Total money label
+    total_money_label = QtWidgets.QLabel(f"Total Money: ${all}", content_frame)
+    total_money_label.setStyleSheet("font-size: 24px; font-weight: bold; color: #333333;")
+    content_layout.addWidget(total_money_label, alignment=QtCore.Qt.AlignCenter)
+    # Back button
+    back_button = QtWidgets.QPushButton("Back", content_frame)
+    back_button.setStyleSheet("""
+                              QPushButton {
+                                    background-color: #6c757d;
+                                    color: white;
+                                    border: none;
+                                    border-radius: 4px;
+                                    padding: 8px 16px;
+                                    font-size: 14px;
+                                }
+                                QPushButton:hover {
+                                    background-color: #5a6268;
+                                }
+                            """)
+    back_button.clicked.connect(lambda: parent.setCurrentIndex(ADMIN_MENU_PAGE))
+    content_layout.addWidget(back_button, alignment=QtCore.Qt.AlignCenter)
+    main_layout.addWidget(content_frame)
+    return page
+ 
+# -------------------------------------------------------------------------------------------------------------
+# === Main Window Setup ===
+# -------------------------------------------------------------------------------------------------------------
 
 def setup_main_window(main_window):
     """Set up the main window with a stacked widget containing home, admin, and employee pages."""
@@ -396,10 +542,10 @@ def setup_main_window(main_window):
 
     # Create pages
     def switch_to_admin():
-        stacked_widget.setCurrentIndex(1)
+        stacked_widget.setCurrentIndex(ADMIN_PAGE)
 
     def switch_to_employee():
-        stacked_widget.setCurrentIndex(2)
+        stacked_widget.setCurrentIndex(EMPLOYEE_PAGE)
 
     def exit_app():
         QtWidgets.QApplication.quit()
@@ -410,7 +556,7 @@ def admin_login_menu_page(name, password):
                 success = backend.check_admin(name, password)
                 if success:
                     QtWidgets.QMessageBox.information(stacked_widget, "Login Successful", f"Welcome, {name}!")
-                    stacked_widget.setCurrentIndex(3)
+                    stacked_widget.setCurrentIndex(ADMIN_MENU_PAGE)
                 else:
                     QtWidgets.QMessageBox.warning(stacked_widget, "Login Failed", "Incorrect name or password.")
             except Exception as e:
@@ -446,15 +592,6 @@ def update_employee_data(name, password, salary, position, name_to_update):
         except:
             show_popup_message(stacked_widget,"Please fill in all fields",3)
 
-    def fetch_employee_data(name):
-        try:
-            cur = backend.cur
-            cur.execute("SELECT * FROM staff WHERE name = ?", (name,))
-            employee_data = cur.fetchone()
-            return employee_data
-        except:
-            print("Error fetching employee data")
-            return None
 
 
    # Create Home Page
@@ -488,35 +625,37 @@ def fetch_employee_data(name):
         stacked_widget
     )
 
-    add_button.clicked.connect(lambda: stacked_widget.setCurrentIndex(4))
-    update_button.clicked.connect(lambda: stacked_widget.setCurrentIndex(5))
-
+    add_button.clicked.connect(lambda: stacked_widget.setCurrentIndex(ADD_EMPLOYEE_PAGE))
+    update_button.clicked.connect(lambda: stacked_widget.setCurrentIndex(UPDATE_EMPLOYEE_PAGE1))
+    list_button.clicked.connect(lambda: stacked_widget.setCurrentIndex(EMPLOYEE_LIST_PAGE))
+    back_button.clicked.connect(lambda: stacked_widget.setCurrentIndex(HOME_PAGE))
+    money_button.clicked.connect(lambda: stacked_widget.setCurrentIndex(ADMIN_TOTAL_MONEY))
     # Create Add Employee Page
     add_employee_page, emp_name, emp_password, emp_salary, emp_position, emp_submit = create_add_employee_page(
         stacked_widget,
         title="Add Employee"
     )
 
     # Update Employee Page
-    update_employee_page1 = get_employee_name(stacked_widget)
+    u_employee_page1 = get_employee_name(stacked_widget)
     # apply the update_employee_data function to the submit button
 
-    update_employee_page2 ,update_employee_name, update_employee_password, update_employee_salary, update_employee_position,update_employee_update = create_add_employee_page(stacked_widget,"Update Employee Details",update_btn=True)
+    u_employee_page2 ,u_employee_name, u_employee_password, u_employee_salary, u_employee_position,u_employee_update = create_add_employee_page(stacked_widget,"Update Employee Details",update_btn=True)
     def populate_employee_data():
         global employee_data
         if employee_data:
             print("employee_data is not None")
-            update_employee_name.setText(str(employee_data[0]))  # Name
-            update_employee_password.setText(str(employee_data[1]))  # Password
-            update_employee_salary.setText(str(employee_data[2]))  # Salary
-            update_employee_position.setText(str(employee_data[3]))  # Position
+            u_employee_name.setText(str(employee_data[0]))  # Name
+            u_employee_password.setText(str(employee_data[1]))  # Password
+            u_employee_salary.setText(str(employee_data[2]))  # Salary
+            u_employee_position.setText(str(employee_data[3]))  # Position
         else:
             # Clear fields if no employee data is available
             print("employee_data is None")
-            update_employee_name.clear()
-            update_employee_password.clear()
-            update_employee_salary.clear()
-            update_employee_position.clear()
+            u_employee_name.clear()
+            u_employee_password.clear()
+            u_employee_salary.clear()
+            u_employee_position.clear()
             QtWidgets.QMessageBox.warning(stacked_widget, "No Data", "No employee data available to display.")
     def on_page_changed(index):
         if index == 6:  # update_employee_page2 is at index 6
@@ -548,17 +687,16 @@ def update_employee_data(name, password, salary, position, name_to_update):
             show_popup_message(stacked_widget, "Employee updated successfully.", 3, False)
         except Exception as e:
             show_popup_message(stacked_widget, f"Error updating employee: {str(e)}", 5)
-    update_employee_update.clicked.connect(
+    u_employee_update.clicked.connect(
     lambda: update_employee_data(
-        update_employee_name.text().strip(),
-        update_employee_password.text().strip(),
-        update_employee_salary.text().strip(),
-        update_employee_position.text().strip(),
+        u_employee_name.text().strip(),
+        u_employee_password.text().strip(),
+        u_employee_salary.text().strip(),
+        u_employee_position.text().strip(),
         employee_data[0] if employee_data else ""
         )
     )
 
-    
 
     emp_submit.clicked.connect(
         lambda: add_employee_form_submit(
@@ -568,28 +706,34 @@ def update_employee_data(name, password, salary, position, name_to_update):
             emp_position.text()
         )
     )
-
+    # show employee list page
+    employee_list_page = show_employee_list_page(stacked_widget,"Employee List")
+    
     # Create Employee Login Page
     employee_page, employee_name, employee_password, employee_submit = create_login_page(
         stacked_widget,
         title="Employee Login"
     )
-    
+    admin_total_money =  show_total_money(stacked_widget,"Total Money")
 
     # Add pages to stacked widget
     stacked_widget.addWidget(home_page)#0
     stacked_widget.addWidget(admin_page)#1
     stacked_widget.addWidget(employee_page)#2
     stacked_widget.addWidget(admin_menu_page)#3
     stacked_widget.addWidget(add_employee_page)#4
-    stacked_widget.addWidget(update_employee_page1)#5
-    stacked_widget.addWidget(update_employee_page2)#6
+    stacked_widget.addWidget(u_employee_page1)#5
+    stacked_widget.addWidget(u_employee_page2)#6
+    stacked_widget.addWidget(employee_list_page)#7
+    stacked_widget.addWidget(admin_total_money)#8
+    
+    
 
     main_layout.addWidget(stacked_widget)
     main_window.setCentralWidget(central_widget)
 
     # Set initial page
-    stacked_widget.setCurrentIndex(5)
+    stacked_widget.setCurrentIndex(EMPLOYEE_PAGE)
 
     return stacked_widget, {
         "admin_name": admin_name,
@@ -611,6 +755,7 @@ def main():
 
     main_window.show()
     sys.exit(app.exec_())
+# -------------------------------------------------------------------------------------------------------------
 
 if __name__ == "__main__":
     main()