"""akun default buat login :
    - admin / admin123  (role admin)
    - kasir / kasir123 (role kasir)
    - waiter / waiter123 (role waiter)
    - user / user123 (role pembeli)
    - owner / owner123 (role pemilik)
"""


import sqlite3
import os
import tkinter as tk
from tkinter import ttk, messagebox, filedialog
from PIL import Image, ImageTk

DB_PATH = "cafe_person1.db"
IMG_PREVIEW_SIZE = (120, 80)





# Baguan Database (ati ati)


def init_db():
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("""
        CREATE TABLE IF NOT EXISTS users (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            username TEXT UNIQUE,
            password TEXT,
            role TEXT
        )
    """)
    c.execute("""
        CREATE TABLE IF NOT EXISTS menu (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            nama TEXT NOT NULL,
            kategori TEXT,
            harga REAL NOT NULL,
            stok INTEGER DEFAULT 0,
            foto TEXT,
            tersedia INTEGER DEFAULT 1,
            item_discount_pct REAL DEFAULT 0  -- per item discount percent (like 10 for 10%)
        )
    """)
    c.execute("""
        CREATE TABLE IF NOT EXISTS promo (
            code TEXT PRIMARY KEY,
            type TEXT CHECK(type IN ('percent','fixed')),
            value REAL,
            min_total REAL DEFAULT 0
        )
    """)
    conn.commit()
    seed_defaults(conn)
    return conn

def seed_defaults(conn):
    c = conn.cursor()
    defaults = [
        ('admin','admin123','admin'),
        ('kasir','kasir123','kasir'),
        ('waiter','waiter123','waiter'),
        ('user','user123','pembeli'),
        ('owner','owner123','pemilik'),
    ]
    for u,p,r in defaults:
        try:
            c.execute("INSERT INTO users (username,password,role) VALUES (?,?,?)", (u,p,r))
        except sqlite3.IntegrityError:
            pass
    sample = [
        ('Americano','Minuman',20000,10,None,1,0),
        ('Latte','Minuman',25000,5,None,1,10),
        ('Banana Cake','Dessert',30000,2,None,1,0),
        ('Nasi Goreng','Makanan',35000,0,None,0,0),
    ]
    for name,kategori,harga,stok,foto,tersedia,disc in sample:
        c.execute("SELECT id FROM menu WHERE nama=?", (name,))
        if c.fetchone() is None:
            c.execute("""INSERT INTO menu (nama,kategori,harga,stok,foto,tersedia,item_discount_pct)
                        VALUES (?,?,?,?,?,?,?)""", (name,kategori,harga,stok,foto,tersedia,disc))
    promos = [
        ('CAFE10','percent',10,0),
        ('HEMAT5000','fixed',5000,20000),
    ]
    for code,ptype,val,min_total in promos:
        try:
            c.execute("INSERT INTO promo (code,type,value,min_total) VALUES (?,?,?,?)", (code,ptype,val,min_total))
        except sqlite3.IntegrityError:
            pass
    conn.commit()

def authenticate(username, password):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("SELECT id,username,role FROM users WHERE username=? AND password=?", (username,password))
    r = c.fetchone()
    conn.close()
    if r:
        return {'id':r[0],'username':r[1],'role':r[2]}
    return None







# Bagian Menu wel


def menu_add(nama, kategori, harga, stok, foto, item_discount_pct=0):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    tersedia = 1 if stok>0 else 0
    c.execute("""INSERT INTO menu (nama,kategori,harga,stok,foto,tersedia,item_discount_pct)
                VALUES (?,?,?,?,?,?,?)""", (nama,kategori,harga,stok,foto,tersedia,item_discount_pct))
    conn.commit()
    conn.close()

def menu_update(menu_id, nama, kategori, harga, stok, foto, item_discount_pct=0):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    tersedia = 1 if stok>0 else 0
    c.execute("""UPDATE menu SET nama=?,kategori=?,harga=?,stok=?,foto=?,tersedia=?,item_discount_pct=?
                WHERE id=?""", (nama,kategori,harga,stok,foto,tersedia,item_discount_pct, menu_id))
    conn.commit()
    conn.close()

def menu_delete(menu_id):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("DELETE FROM menu WHERE id=?", (menu_id,))
    conn.commit()
    conn.close()

def menu_list(kategori=None, available_only=False, search_text=None):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    q = "SELECT id,nama,kategori,harga,stok,foto,tersedia,item_discount_pct FROM menu"
    conditions = []
    params = []
    if kategori:
        conditions.append("kategori=?")
        params.append(kategori)
    if available_only:
        conditions.append("tersedia=1")
    if search_text:
        conditions.append("(nama LIKE ? OR kategori LIKE ?)")
        params += [f"%{search_text}%", f"%{search_text}%"]
    if conditions:
        q += " WHERE " + " AND ".join(conditions)
    q += " ORDER BY id ASC"
    c.execute(q, params)
    rows = c.fetchall()
    conn.close()
    return rows

def menu_get(menu_id):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("SELECT id,nama,kategori,harga,stok,foto,tersedia,item_discount_pct FROM menu WHERE id=?", (menu_id,))
    r = c.fetchone()
    conn.close()
    return r

def menu_decrease_stock(menu_id, qty):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("SELECT stok FROM menu WHERE id=?", (menu_id,))
    r = c.fetchone()
    if not r:
        conn.close()
        return False, "Menu tidak ditemukan"
    stok = r[0]
    if stok < qty:
        conn.close()
        return False, "Stok tidak cukup"
    newstok = stok - qty
    tersedia = 1 if newstok>0 else 0
    c.execute("UPDATE menu SET stok=?, tersedia=? WHERE id=?", (newstok, tersedia, menu_id))
    conn.commit()
    conn.close()
    return True, newstok



# Bagian Promooo


def promo_add(code, ptype, value, min_total=0):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("INSERT INTO promo (code,type,value,min_total) VALUES (?,?,?,?)", (code,ptype,value,min_total))
    conn.commit()
    conn.close()

def promo_update(code, ptype, value, min_total=0):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("UPDATE promo SET type=?, value=?, min_total=? WHERE code=?", (ptype,value,min_total,code))
    conn.commit()
    conn.close()

def promo_delete(code):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("DELETE FROM promo WHERE code=?", (code,))
    conn.commit()
    conn.close()

def promo_list():
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("SELECT code,type,value,min_total FROM promo ORDER BY code")
    rows = c.fetchall()
    conn.close()
    return rows

def promo_get(code):
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    c.execute("SELECT code,type,value,min_total FROM promo WHERE code=?", (code,))
    r = c.fetchone()
    conn.close()
    return r

def apply_discounts_and_promo(cart_items, promo_code=None):
    """
    cart_items: list of dicts: [{'menu_id':..,'qty':..}, ...]
    returns breakdown: subtotal, item_discount_total, promo_code, promo_discount, total
    - uses item_discount_pct from menu table
    - promo_code can be percent or fixed, with min_total
    """
    conn = sqlite3.connect(DB_PATH)
    c = conn.cursor()
    subtotal = 0.0
    item_discount_total = 0.0
    for it in cart_items:
        c.execute("SELECT harga,item_discount_pct FROM menu WHERE id=?", (it['menu_id'],))
        r = c.fetchone()
        if not r:
            continue
        price, item_disc_pct = r
        qty = it.get('qty',1)
        line = price * qty
        subtotal += line
        if item_disc_pct and item_disc_pct > 0:
            item_discount_total += (price * qty) * (item_disc_pct/100.0)
    promo_discount = 0.0
    promo_applied = None
    if promo_code:
        c.execute("SELECT type,value,min_total FROM promo WHERE code=?", (promo_code,))
        row = c.fetchone()
        if row:
            ptype, val, min_total = row
            if subtotal >= min_total:
                if ptype == 'percent':
                    promo_discount = (subtotal - item_discount_total) * (val/100.0)
                else:
                    promo_discount = val
                promo_applied = promo_code
    total = subtotal - item_discount_total - promo_discount
    if total < 0:
        total = 0.0
    conn.close()
    return {
        'subtotal': round(subtotal,2),
        'item_discount': round(item_discount_total,2),
        'promo_code': promo_applied,
        'promo_discount': round(promo_discount,2),
        'total': round(total,2)
    }






# wilayah UI (universitas indonesia)



class App:
    def __init__(self, root):
        self.root = root
        self.root.title("Cafe Totoro")
        self.session = None
        self.img_cache = {}  
        self.setup_ui()

    def setup_ui(self):
        self.root.geometry("1000x650")
        self.root.resizable(False, False)
        self.login_frame()


# windah batubara

# tampilan login dan logout

    def login_frame(self):
        for w in self.root.winfo_children():
            w.destroy()
        frame = ttk.Frame(self.root, padding=20)
        frame.pack(expand=True)

        ttk.Label(frame, text="LOGIN", font=("Arial", 24)).grid(row=0, column=0, columnspan=2, pady=10)

        ttk.Label(frame, text="Username:").grid(row=1, column=0, sticky='e', pady=5)
        self.username_var = tk.StringVar()
        ttk.Entry(frame, textvariable=self.username_var, width=30).grid(row=1, column=1, pady=5)

        ttk.Label(frame, text="Password:").grid(row=2, column=0, sticky='e', pady=5)
        self.password_var = tk.StringVar()
        ttk.Entry(frame, textvariable=self.password_var, show="*", width=30).grid(row=2, column=1, pady=5)

        ttk.Button(frame, text="Login", command=self.handle_login).grid(row=3, column=0, columnspan=2, pady=12)

    def handle_login(self):
        u = self.username_var.get().strip()
        p = self.password_var.get().strip()
        if not u or not p:
            messagebox.showwarning("Input", "Masukkan username & password")
            return
        user = authenticate(u,p)
        if not user:
            messagebox.showerror("Gagal", "Username atau password salah")
            return
        self.session = user
        messagebox.showinfo("Sukses", f"Login berhasil sebagai {user['role']}")
        self.dashboard_frame()


    def logout(self):
        self.session = None
        self.img_cache.clear()
        self.login_frame()




# tampilan dashboard untuk admin    dah ngantuk we

def dashboard_frame(self):
        for w in self.root.winfo_children():
            w.destroy()
        top = ttk.Frame(self.root)
        top.pack(fill='x')
        ttk.Label(top, text=f"User: {self.session['username']}  |  Role: {self.session['role']}",
                font=("Arial", 12)).pack(side='left', padx=10, pady=6)
        ttk.Button(top, text="Logout", command=self.logout).pack(side='right', padx=10)
        main = ttk.Notebook(self.root)
        main.pack(fill='both', expand=True, padx=10, pady=8)
        self.tab_menu_manage = ttk.Frame(main)
        self.tab_menu_view = ttk.Frame(main)
        self.tab_promo = ttk.Frame(main)
        self.tab_tests = ttk.Frame(main)

        main.add(self.tab_menu_view, text="Menu - View")
        if self.session['role'] == 'admin':
            main.add(self.tab_menu_manage, text="Menu - Manage")
            main.add(self.tab_promo, text="Promo - Manage")
            main.add(self.tab_tests, text="Admin - Tests")
        else:
            pass

        self.build_menu_view_tab(self.tab_menu_view)
        if self.session['role'] == 'admin':
            self.build_menu_manage_tab(self.tab_menu_manage)
            self.build_promo_tab(self.tab_promo)
            self.build_tests_tab(self.tab_tests)





# Bagian Search dan Filter


def build_menu_view_tab(self, parent):
        for w in parent.winfo_children():
            w.destroy()
        left = ttk.Frame(parent, width=600)
        right = ttk.Frame(parent, width=380)
        left.pack(side='left', fill='both', expand=True, padx=6, pady=6)
        right.pack(side='right', fill='y', padx=6, pady=6)

        filter_frame = ttk.Frame(left)
        filter_frame.pack(fill='x', pady=6)
        ttk.Label(filter_frame, text="Cari / Nama atau Kategori:").pack(side='left', padx=3)
        self.view_search_var = tk.StringVar()
        ttk.Entry(filter_frame, textvariable=self.view_search_var, width=30).pack(side='left', padx=3)
        ttk.Button(filter_frame, text="Cari", command=self.reload_view_table).pack(side='left', padx=3)
        ttk.Button(filter_frame, text="Reset", command=self.reset_view_filters).pack(side='left', padx=3)
        ttk.Button(filter_frame, text="Hanya Tersedia", command=lambda: self.reload_view_table(available_only=True)).pack(side='left', padx=6)

        cols = ("ID","Nama","Kategori","Harga","Stok","Tersedia","ItemDisc%")
        self.view_tree = ttk.Treeview(left, columns=cols, show='headings', height=18)
        for c in cols:
            self.view_tree.heading(c, text=c)
            self.view_tree.column(c, width=90 if c!="Nama" else 200)
        self.view_tree.pack(fill='both', expand=True)
        self.view_tree.bind("<<TreeviewSelect>>", self.on_view_select)






# Preview Image


        ttk.Label(right, text="Preview Item", font=("Arial", 12, "bold")).pack(pady=6)
        self.preview_label = ttk.Label(right, text="Pilih menu di kiri")
        self.preview_label.pack()
        self.preview_img_label = ttk.Label(right)
        self.preview_img_label.pack(pady=6)
        self.preview_detail = tk.Text(right, width=45, height=12)
        self.preview_detail.pack()

        self.reload_view_table()

def reload_view_table(self, available_only=False):
        s = self.view_search_var.get().strip() if hasattr(self, 'view_search_var') else ""
        results = menu_list(search_text=s or None, available_only=available_only)
        for r in self.view_tree.get_children():
            self.view_tree.delete(r)
        for row in results:
            mid,nama,kategori,harga,stok,foto,tersedia,item_disc = row
            self.view_tree.insert("", tk.END, values=(mid,nama,kategori,harga,stok, "Yes" if tersedia else "No", item_disc))

def reset_view_filters(self):
        self.view_search_var.set("")
        self.reload_view_table()

def on_view_select(self, event):
        sel = self.view_tree.selection()
        if not sel:
            return
        item = self.view_tree.item(sel)['values']
        menu_id = item[0]
        data = menu_get(menu_id)
        if not data:
            return
        mid,nama,kategori,harga,stok,foto,tersedia,item_disc = data
        self.preview_detail.delete('1.0', tk.END)
        txt = f"ID: {mid}\nNama: {nama}\nKategori: {kategori}\nHarga: {harga}\nStok: {stok}\nTersedia: {'Yes' if tersedia else 'No'}\nItem Discount: {item_disc}%\nFoto path: {foto}\n"
        self.preview_detail.insert(tk.END, txt)
        if foto and os.path.exists(foto):
            try:
                img = Image.open(foto)
                img.thumbnail(IMG_PREVIEW_SIZE)
                tkimg = ImageTk.PhotoImage(img)
                self.img_cache['preview'] = tkimg
                self.preview_img_label.config(image=tkimg)
            except Exception as e:
                self.preview_img_label.config(image='')
        else:
            self.preview_img_label.config(image='')







# bagian menu manage khusus admin


def build_menu_manage_tab(self, parent):
        for w in parent.winfo_children():
            w.destroy()
        topfrm = ttk.Frame(parent)
        topfrm.pack(fill='x', padx=6, pady=6)
        ttk.Label(topfrm, text="Kelola Menu", font=("Arial", 14, "bold")).pack(side='left')
        ttk.Button(topfrm, text="Tambah Menu", command=self.open_add_menu_window).pack(side='right', padx=6)
        cols = ("ID","Nama","Kategori","Harga","Stok","Tersedia","ItemDisc%")
        self.manage_tree = ttk.Treeview(parent, columns=cols, show='headings', height=18)
        for c in cols:
            self.manage_tree.heading(c, text=c)
            self.manage_tree.column(c, width=100 if c!="Nama" else 220)
        self.manage_tree.pack(fill='both', padx=6, pady=6)
        btnfrm = ttk.Frame(parent)
        btnfrm.pack(pady=6)
        ttk.Button(btnfrm, text="Edit Terpilih", command=self.open_edit_menu_window).pack(side='left', padx=6)
        ttk.Button(btnfrm, text="Hapus Terpilih", command=self.delete_selected_menu).pack(side='left', padx=6)
        ttk.Button(btnfrm, text="Reload", command=self.reload_manage_table).pack(side='left', padx=6)
        self.reload_manage_table()

def reload_manage_table(self):
        for r in self.manage_tree.get_children():
            self.manage_tree.delete(r)
        rows = menu_list()
        for row in rows:
            mid,nama,kategori,harga,stok,foto,tersedia,item_disc = row
            self.manage_tree.insert("", tk.END, values=(mid,nama,kategori,harga,stok,"Yes" if tersedia else "No", item_disc))

def open_add_menu_window(self):
        w = tk.Toplevel(self.root)
        w.title("Tambah Menu")
        frm = ttk.Frame(w,padding=10)
        frm.pack()
        labels = ["Nama","Kategori","Harga","Stok","Foto path","Item Discount (%)"]
        vars = {}
        for i,lab in enumerate(labels):
            ttk.Label(frm, text=lab).grid(row=i, column=0, sticky='e', pady=4)
            vars[lab] = tk.StringVar()
            ttk.Entry(frm, textvariable=vars[lab], width=40).grid(row=i, column=1, pady=4)
        ttk.Button(frm, text="Pilih Foto", command=lambda: self.select_file(vars["Foto path"])).grid(row=4, column=2, padx=6)
        def save():
            try:
                nama = vars["Nama"].get().strip()
                kategori = vars["Kategori"].get().strip()
                harga = float(vars["Harga"].get())
                stok = int(vars["Stok"].get())
                foto = vars["Foto path"].get().strip() or None
                item_disc = float(vars["Item Discount (%)"].get() or 0)
            except Exception as e:
                messagebox.showerror("Input error", "Periksa kembali input (Harga/Stok harus angka)")
                return
            menu_add(nama,kategori,harga,stok,foto,item_disc)
            messagebox.showinfo("Sukses","Menu ditambahkan")
            w.destroy()
            self.reload_manage_table()
            self.reload_view_table()
        ttk.Button(frm, text="Simpan", command=save).grid(row=len(labels), column=1, pady=8)

def open_edit_menu_window(self):
        sel = self.manage_tree.selection()
        if not sel:
            messagebox.showwarning("Pilih", "Pilih menu terlebih dahulu")
            return
        item = self.manage_tree.item(sel)['values']
        menu_id = item[0]
        data = menu_get(menu_id)
        if not data:
            messagebox.showerror("Error", "Data menu tidak ditemukan")
            return
        mid,nama,kategori,harga,stok,foto,tersedia,item_disc = data
        w = tk.Toplevel(self.root)
        w.title("Edit Menu")
        frm = ttk.Frame(w,padding=10)
        frm.pack()
        labels = ["Nama","Kategori","Harga","Stok","Foto path","Item Discount (%)"]
        vars = {}
        defaults = [nama,kategori,str(harga),str(stok),foto or "",str(item_disc or 0)]
        for i,lab in enumerate(labels):
            ttk.Label(frm, text=lab).grid(row=i, column=0, sticky='e', pady=4)
            vars[lab] = tk.StringVar(value=defaults[i])
            ttk.Entry(frm, textvariable=vars[lab], width=40).grid(row=i, column=1, pady=4)
        ttk.Button(frm, text="Pilih Foto", command=lambda: self.select_file(vars["Foto path"])).grid(row=4, column=2, padx=6)
        def save():
            try:
                nama = vars["Nama"].get().strip()
                kategori = vars["Kategori"].get().strip()
                harga = float(vars["Harga"].get())
                stok = int(vars["Stok"].get())
                foto = vars["Foto path"].get().strip() or None
                item_disc = float(vars["Item Discount (%)"].get() or 0)
            except:
                messagebox.showerror("Input error", "Periksa input")
                return
            menu_update(menu_id, nama, kategori, harga, stok, foto, item_disc)
            messagebox.showinfo("Sukses","Menu diperbarui")
            w.destroy()
            self.reload_manage_table()
            self.reload_view_table()
        ttk.Button(frm, text="Update", command=save).grid(row=len(labels), column=1, pady=8)

def delete_selected_menu(self):
        sel = self.manage_tree.selection()
        if not sel:
            messagebox.showwarning("Pilih", "Pilih menu untuk dihapus")
            return
        item = self.manage_tree.item(sel)['values']
        menu_id = item[0]
        if messagebox.askyesno("Konfirmasi", "Hapus menu terpilih?"):
            menu_delete(menu_id)
            messagebox.showinfo("Dihapus", "Menu berhasil dihapus")
            self.reload_manage_table()
            self.reload_view_table()

def select_file(self, var):
        p = filedialog.askopenfilename(title="Pilih file gambar",
        filetypes=[("Image files","*.png;*.jpg;*.jpeg;*.gif;*.bmp"),("All files","*.*")])
        if p:
            var.set(p)