"""컨트롤러 설정 변경 다이얼로그"""

import tkinter as tk
from tkinter import ttk, messagebox

from models.controller import Controller
from network.udp_discovery import send_sett


class SettingsDialog(tk.Toplevel):

    def __init__(self, parent, ctrl: Controller, bind_ip: str):
        super().__init__(parent)
        self.title(f"설정 변경 - {ctrl.mac}")
        self.resizable(False, False)
        self.grab_set()
        self._ctrl = ctrl
        self._bind_ip = bind_ip
        self._build_ui()
        self.transient(parent)
        # 화면 중앙
        self.update_idletasks()
        x = parent.winfo_rootx() + (parent.winfo_width() - self.winfo_width()) // 2
        y = parent.winfo_rooty() + (parent.winfo_height() - self.winfo_height()) // 2
        self.geometry(f"+{x}+{y}")

    def _build_ui(self):
        f = ttk.Frame(self, padding=15)
        f.pack(fill=tk.BOTH, expand=True)

        fields = [
            ("MAC:", self._ctrl.mac, False),
            ("IP:", self._ctrl.ip, True),
            ("포트:", str(self._ctrl.port), True),
            ("이름:", self._ctrl.name, True),
            ("서브넷:", self._ctrl.subnet, True),
            ("게이트웨이:", self._ctrl.gateway, True),
        ]

        self._vars = {}
        for i, (label, value, editable) in enumerate(fields):
            ttk.Label(f, text=label).grid(row=i, column=0, sticky=tk.E, padx=(0, 8), pady=3)
            var = tk.StringVar(value=value)
            state = "normal" if editable else "readonly"
            ttk.Entry(f, textvariable=var, width=22, state=state).grid(row=i, column=1, pady=3)
            self._vars[label] = var

        btn = ttk.Frame(f)
        btn.grid(row=len(fields), column=0, columnspan=2, pady=(12, 0))
        ttk.Button(btn, text="설정", command=self._on_apply).pack(side=tk.LEFT, padx=5)
        ttk.Button(btn, text="닫기", command=self.destroy).pack(side=tk.LEFT, padx=5)

    def _on_apply(self):
        self._ctrl.ip = self._vars["IP:"].get().strip()
        try:
            self._ctrl.port = int(self._vars["포트:"].get().strip())
        except ValueError:
            messagebox.showerror("오류", "포트는 숫자여야 합니다.", parent=self)
            return
        self._ctrl.name = self._vars["이름:"].get().strip()
        self._ctrl.subnet = self._vars["서브넷:"].get().strip()
        self._ctrl.gateway = self._vars["게이트웨이:"].get().strip()

        ok = send_sett(self._ctrl, self._bind_ip)
        if ok:
            messagebox.showinfo("성공", "설정 되었습니다.", parent=self)
        else:
            messagebox.showerror("실패", "설정 전송에 실패했습니다.", parent=self)