from __future__ import annotations

from typing import TYPE_CHECKING

import customtkinter as ctk

from gui.locales import t
from gui.views.base import BaseView

if TYPE_CHECKING:
    from gui.app import ArmaModManagerApp


class SettingsView(BaseView):
    """Appearance switcher, language selector, wizard re-opener, and current config display."""

    def build(self) -> None:
        self.grid_columnconfigure(0, weight=1)
        self.grid_rowconfigure(1, weight=1)

        self._title_lbl = ctk.CTkLabel(self, text=t("settings.title"),
                                       font=ctk.CTkFont(size=22, weight="bold"))
        self._title_lbl.grid(row=0, column=0, sticky="w", padx=24, pady=(20, 8))

        self._scroll = ctk.CTkScrollableFrame(self, fg_color="transparent")
        self._scroll.grid(row=1, column=0, sticky="nsew", padx=24, pady=(0, 12))

        self._build_cards()

    def refresh(self) -> None:
        # Config info and language may have changed; rebuild everything.
        self._title_lbl.configure(text=t("settings.title"))
        for w in self._scroll.winfo_children():
            w.destroy()
        self._build_cards()

    def _build_cards(self) -> None:
        # ── Server & Paths ────────────────────────────────────────────────────
        c1 = ctk.CTkFrame(self._scroll)
        c1.pack(fill="x", pady=6)
        ctk.CTkLabel(c1, text=t("settings.server_card_title"),
                     font=ctk.CTkFont(size=14, weight="bold")).pack(
            anchor="w", padx=16, pady=(14, 3))
        ctk.CTkLabel(c1,
                     text=t("settings.server_card_desc"),
                     text_color="gray", wraplength=600, justify="left").pack(
            anchor="w", padx=16, pady=(0, 8))
        ctk.CTkButton(c1, text=t("settings.wizard_btn"), width=160,
                      command=self.app.open_wizard).pack(
            anchor="e", padx=16, pady=(0, 14))

        # ── Appearance ────────────────────────────────────────────────────────
        c2 = ctk.CTkFrame(self._scroll)
        c2.pack(fill="x", pady=6)
        ctk.CTkLabel(c2, text=t("settings.appearance_title"),
                     font=ctk.CTkFont(size=14, weight="bold")).pack(
            anchor="w", padx=16, pady=(14, 3))
        mode_var = ctk.StringVar(value=ctk.get_appearance_mode())
        ctk.CTkOptionMenu(c2, values=["Dark", "Light", "System"],
                          variable=mode_var,
                          command=ctk.set_appearance_mode,
                          width=140).pack(anchor="w", padx=16, pady=(0, 14))

        # ── Language ──────────────────────────────────────────────────────────
        c_lang = ctk.CTkFrame(self._scroll)
        c_lang.pack(fill="x", pady=6)
        ctk.CTkLabel(c_lang, text=t("settings.language_title"),
                     font=ctk.CTkFont(size=14, weight="bold")).pack(
            anchor="w", padx=16, pady=(14, 3))
        from gui.locales import get_language
        current_display = "Tiếng Việt" if get_language() == "vi" else "English"
        ctk.CTkOptionMenu(
            c_lang,
            values=["English", "Tiếng Việt"],
            variable=ctk.StringVar(value=current_display),
            command=lambda v: self.app.switch_language("vi" if v == "Tiếng Việt" else "en"),
            width=160,
        ).pack(anchor="w", padx=16, pady=(0, 14))

        # ── Current config info ───────────────────────────────────────────────
        cfg = self.app.cfg
        if cfg:
            c3 = ctk.CTkFrame(self._scroll)
            c3.pack(fill="x", pady=6)
            ctk.CTkLabel(c3, text=t("settings.config_title"),
                         font=ctk.CTkFont(size=14, weight="bold")).pack(
                anchor="w", padx=16, pady=(14, 3))
            info = (
                f"Server:      {cfg.server_url}\n"
                f"Arma dir:    {cfg.arma_dir}\n"
                f"Downloads:   {cfg.downloads}\n"
                f"Presets:     {cfg.modlist_html}\n"
            )
            ctk.CTkLabel(c3, text=info, justify="left",
                         font=ctk.CTkFont(family="Consolas", size=11),
                         text_color="gray").pack(anchor="w", padx=16, pady=(0, 14))