from __future__ import annotations

from typing import TYPE_CHECKING

import customtkinter as ctk

from gui._constants import COLOR_ERROR
from gui.views.base import BaseView

if TYPE_CHECKING:
    from gui.app import ArmaModManagerApp


class LogsView(BaseView):
    """
    Monospace textbox showing captured stdout/stderr from pipeline and tools.

    The app's poll loop appends text by calling append() directly on this view.
    Log content persists across navigation — the textbox is built once in build()
    and never recreated.
    """

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

        # ── Header ────────────────────────────────────────────────────────────
        hdr = ctk.CTkFrame(self, fg_color="transparent")
        hdr.grid(row=0, column=0, sticky="ew", padx=24, pady=(20, 8))
        ctk.CTkLabel(hdr, text="Logs",
                     font=ctk.CTkFont(size=22, weight="bold")).pack(side="left")

        btn_row = ctk.CTkFrame(hdr, fg_color="transparent")
        btn_row.pack(side="right")
        ctk.CTkButton(btn_row, text="Copy", width=72,
                      command=self._copy).pack(side="left", padx=4)
        ctk.CTkButton(btn_row, text="Clear", width=72,
                      fg_color=COLOR_ERROR, hover_color="#c62828",
                      command=self._clear).pack(side="left")

        # ── Log textbox (persistent) ──────────────────────────────────────────
        self._log_box = ctk.CTkTextbox(
            self, state="disabled",
            font=ctk.CTkFont(family="Consolas", size=12))
        self._log_box.grid(row=1, column=0, sticky="nsew", padx=24, pady=(0, 12))

    def append(self, text: str) -> None:
        """Thread-safe-ish: called from the app's after() poll loop (main thread)."""
        try:
            self._log_box.configure(state="normal")
            self._log_box.insert("end", text)
            self._log_box.see("end")
            self._log_box.configure(state="disabled")
        except Exception:
            pass

    def _copy(self) -> None:
        self.clipboard_clear()
        self.clipboard_append(self._log_box.get("1.0", "end"))

    def _clear(self) -> None:
        self._log_box.configure(state="normal")
        self._log_box.delete("1.0", "end")
        self._log_box.configure(state="disabled")