import tkinter as tk
from tkinter import messagebox
from database import connect

class WaiterDashboard:
    def __init__(self, parent):
        self.parent = parent
        self.frame = tk.Frame(parent)
        self.frame.pack(fill="both", expand=True)

        tk.Label(self.frame, text="DASHBOARD WAITER (Dapur)", font=("Arial", 18, "bold")).pack(pady=10)
        
        tk.Button(self.frame, text="Logout", command=self.logout).pack(pady=5)
        tk.Button(self.frame, text="Refresh Data", bg="#cfe2ff", command=self.load_orders).pack(pady=5)

        # List Pesanan Masuk
        self.listbox = tk.Listbox(self.frame, width=80, height=15)
        self.listbox.pack(pady=10)

        tk.Button(self.frame, text="Selesai Disajikan / Validasi", bg="#d1e7dd", command=self.validasi_layanan).pack(pady=10)

        self.order_ids = [] # Untuk menyimpan ID transaksi sesuai urutan listbox
        self.load_orders()

    def load_orders(self):
        self.listbox.delete(0, tk.END)
        self.order_ids = []
        
        db = connect()
        cur = db.cursor()
        # Ambil pesanan yang statusnya 'Pending'
        cur.execute("SELECT id, meja_id, total, status FROM transaksi WHERE status='Pending'")
        rows = cur.fetchall()
        
        for row in rows:
            t_id, meja, total, status = row
            # Ambil detail menu untuk ditampilkan
            cur.execute("SELECT menu_nama FROM detail_transaksi WHERE transaksi_id=?", (t_id,))
            menus = [r[0] for r in cur.fetchall()]
            menu_str = ", ".join(menus)

            display_text = f"[Meja {meja}] ID:{t_id} | Menu: {menu_str} | Status: {status}"
            self.listbox.insert(tk.END, display_text)
            self.order_ids.append(t_id)
        
        db.close()

    def validasi_layanan(self):
        idx = self.listbox.curselection()
        if not idx:
            messagebox.showwarning("Pilih", "Pilih pesanan yang sudah disajikan")
            return
        
        selected_id = self.order_ids[idx[0]]
        
        db = connect()
        cur = db.cursor()
        # Ubah status jadi 'Disajikan' agar muncul di kasir
        cur.execute("UPDATE transaksi SET status='Disajikan' WHERE id=?", (selected_id,))
        db.commit()
        db.close()
        
        messagebox.showinfo("Sukses", "Pesanan selesai disajikan. Pelanggan bisa bayar di kasir.")
        self.load_orders()

    def logout(self):
        self.frame.destroy()
        from main import LoginScreen
        LoginScreen(self.parent)