import tkinter as tk
from tkinter import ttk, messagebox
import json
import os

CONFIG_PATH = os.path.join(os.path.dirname(__file__), 'main_data', 'app_config.txt')

class AppSettingsWindow(tk.Tk):
    def __init__(self):
        super().__init__()
        self.title('App Settings')
        self.geometry('440x600')  # Increased height for better button visibility
        self.resizable(False, False)
        self.config(bg='#23272e')
        self.fields = {}
        self.load_config()
        self.style = ttk.Style(self)
        self.set_styles()
        self.create_widgets()

    def set_styles(self):
        self.style.theme_use('clam')
        self.style.configure('TLabel', background='#23272e', foreground='#e0e0e0', font=('Segoe UI', 13, 'bold'))
        self.style.configure('TEntry', fieldbackground='#2c313c', foreground='#e0e0e0', borderwidth=1, relief='flat', font=('Segoe UI', 12))
        self.style.map('TEntry', fieldbackground=[('active', '#23272e')])
        self.style.configure('TButton', background='#3b82f6', foreground='white', font=('Segoe UI', 13, 'bold'), borderwidth=0, focusthickness=3, focuscolor='#60a5fa', padding=8)
        self.style.map('TButton', background=[('active', '#2563eb')])

    def load_config(self):
        try:
            with open(CONFIG_PATH, 'r') as f:
                self.config_data = json.load(f)
        except Exception as e:
            self.config_data = {}
            messagebox.showerror('Error', f'Failed to load config: {e}')

    def save_config(self):
        try:
            for key, entry in self.fields.items():
                if hasattr(entry, 'get'):
                    self.config_data[key] = entry.get()
            with open(CONFIG_PATH, 'w') as f:
                json.dump(self.config_data, f, indent=4)
            self.show_custom_popup('Success', 'Settings saved!')
        except Exception as e:
            messagebox.showerror('Error', f'Failed to save config: {e}')

    def show_custom_popup(self, title, message):
        popup = tk.Toplevel(self)
        popup.title(title)
        popup.geometry('320x120')
        popup.configure(bg='#23272e')
        popup.resizable(False, False)
        popup.attributes('-topmost', True)
        ttk.Label(popup, text=title, style='TLabel').pack(pady=(18, 0))
        ttk.Label(popup, text=message, style='TLabel').pack(pady=(8, 0))
        close_btn = ttk.Button(popup, text='OK', style='TButton', command=popup.destroy)
        close_btn.pack(pady=18)
        popup.grab_set()
        popup.after(5000, popup.destroy)

    def create_widgets(self):
        title = ttk.Label(self, text='Application Settings', style='TLabel')
        title.grid(row=0, column=0, columnspan=2, pady=(18, 6))
        warning = tk.Label(self, text='⚠️ Modify values only if necessary or instructed!', fg='#ffb300', bg='#23272e', font=('Segoe UI', 11, 'bold'))
        warning.grid(row=1, column=0, columnspan=2, pady=(0, 18))
        row = 2
        for key, value in self.config_data.items():
            label = ttk.Label(self, text=key+':', style='TLabel')
            label.grid(row=row, column=0, sticky='e', padx=18, pady=10)
            if key == 'touch_screen':
                var = tk.StringVar()
                combo = ttk.Combobox(self, textvariable=var, values=['On', 'Off'], state='readonly', width=26)
                combo.set(str(value))
                combo.grid(row=row, column=1, padx=10, pady=10)
                self.fields[key] = combo
            else:
                entry = ttk.Entry(self, style='TEntry', width=28)
                entry.insert(0, str(value))
                entry.grid(row=row, column=1, padx=10, pady=10)
                self.fields[key] = entry
            row += 1
        save_btn = ttk.Button(self, text='Save Settings', style='TButton', command=self.save_config)
        save_btn.grid(row=row, column=0, pady=30, sticky='e', padx=(0,10))
        close_btn = ttk.Button(self, text='Close', style='TButton', command=self.destroy)
        close_btn.grid(row=row, column=1, pady=30, sticky='w', padx=(10,0))

if __name__ == '__main__':
    app = AppSettingsWindow()
    app.mainloop()