"""应用路径：开发目录 vs PyInstaller 打包 exe。"""
from __future__ import annotations

import os
import sys
from pathlib import Path


def is_frozen() -> bool:
    return bool(getattr(sys, "frozen", False))


def app_root() -> Path:
    """exe 所在目录 / 源码目录（可写：浏览器、输出 JSON）。"""
    if is_frozen():
        return Path(sys.executable).resolve().parent
    return Path(__file__).resolve().parent


def bundle_root() -> Path:
    """打包内资源目录（只读）。"""
    if is_frozen():
        return Path(getattr(sys, "_MEIPASS", app_root()))
    return app_root()


def ui_html_path() -> Path:
    for candidate in (
        bundle_root() / "douyin_collector_ui.html",
        app_root() / "douyin_collector_ui.html",
    ):
        if candidate.is_file():
            return candidate
    return app_root() / "douyin_collector_ui.html"


def is_gui_mode() -> bool:
    """无黑窗口模式：pythonw / 无控制台 exe / COLLECTOR_GUI=1。"""
    if os.environ.get("DOUYIN_CONSOLE") == "1":
        return False
    if os.environ.get("COLLECTOR_GUI") == "1":
        return True
    if Path(sys.executable).name.lower() == "pythonw.exe":
        return True
    if is_frozen() and sys.platform == "win32":
        try:
            import ctypes
            return ctypes.windll.kernel32.GetConsoleWindow() == 0
        except Exception:
            return True
    return False


def splash_html_path() -> Path:
    for candidate in (
        bundle_root() / "splash.html",
        app_root() / "splash.html",
    ):
        if candidate.is_file():
            return candidate
    return app_root() / "splash.html"


def launch_splash() -> None:
    """立即打开启动动画页（空白期反馈）。"""
    if os.environ.get("SPLASH_LAUNCHED") == "1":
        return
    splash = splash_html_path()
    if not splash.is_file():
        return
    os.environ["SPLASH_LAUNCHED"] = "1"
    if sys.platform == "win32":
        try:
            import subprocess
            subprocess.Popen(
                ["cmd", "/c", "start", "", str(splash.resolve())],
                creationflags=getattr(subprocess, "CREATE_NO_WINDOW", 0),
                close_fds=True,
            )
            return
        except Exception:
            pass
    try:
        import webbrowser
        webbrowser.open(splash.resolve().as_uri())
    except Exception:
        pass


def use_incognito_ui() -> bool:
    """凭证页与登录页均在 Playwright 无痕窗口内打开（默认开启）。"""
    if os.environ.get("DOUYIN_CONSOLE") == "1":
        return False
    if os.environ.get("COLLECTOR_EXTERNAL_BROWSER") == "1":
        return False
    return True


def browser_ready_file() -> Path:
    return app_root() / ".browser_ready"


def clear_browser_ready() -> None:
    try:
        path = browser_ready_file()
        if path.is_file():
            path.unlink()
    except Exception:
        pass


def signal_browser_ready() -> None:
    try:
        browser_ready_file().write_text(str(int(__import__("time").time())), encoding="utf-8")
    except Exception:
        pass