start.bat

@echo off
chcp 65001 >nul
setlocal EnableExtensions EnableDelayedExpansion
set "PYTHONUTF8=1"
set "PYTHONIOENCODING=utf-8"

REM ===============================
REM Universal Web-to-API 启动脚本
REM v2.3 - DrissionPage 反检测补丁
REM ===============================

set "SCRIPT_DIR=%~dp0"
for %%I in ("!SCRIPT_DIR!.") do cd /d "%%~fI"
set "PROJECT_DIR=%cd%"
set "SCRIPT_DIR="

echo.
echo ========================================
echo   Universal Web-to-API 启动脚本
echo ========================================
echo.

REM ---------- 1) 加载 .env ----------
echo [STEP] 加载配置
echo ----------------------------------------

if exist ".env" (
    echo [INFO] 读取 .env 配置文件...
    set "ENV_LOADED=0"
    for /f "usebackq eol=# tokens=1,* delims==" %%A in (".env") do call :SetEnvVar "%%A" "%%B"
    echo [OK] 配置加载完成
) else (
    echo [WARN] 未找到 .env 文件，使用默认配置
)

REM 默认值兜底
if not defined APP_HOST set "APP_HOST=127.0.0.1"
if not defined APP_PORT set "APP_PORT=8199"
if not defined BROWSER_PORT set "BROWSER_PORT=9222"
if not defined AUTO_UPDATE_ENABLED set "AUTO_UPDATE_ENABLED=true"
if not defined GITHUB_REPO set "GITHUB_REPO=lumingya/universal-web-api"
if not defined PYTHON_INSTALL_VERSION set "PYTHON_INSTALL_VERSION=3.13.6"
for /f "tokens=1,2 delims=." %%A in ("%PYTHON_INSTALL_VERSION%") do set "PYTHON_INSTALL_MAJOR_MINOR=%%A.%%B"
set "PYTHON_INSTALL_SHORT=%PYTHON_INSTALL_MAJOR_MINOR:.=%"
if not defined PROXY_ENABLED set "PROXY_ENABLED=false"
if not defined PROXY_ADDRESS set "PROXY_ADDRESS="
if not defined PROXY_BYPASS set "PROXY_BYPASS=localhost,127.0.0.1"
if not defined PIP_MIRROR_URL set "PIP_MIRROR_URL=https://pypi.tuna.tsinghua.edu.cn/simple"
if not defined BROWSER_PROFILE_DIR set "BROWSER_PROFILE_DIR="
if not defined BROWSER_PROFILE_NAME set "BROWSER_PROFILE_NAME="
if not defined PROFILE_CLEAN_ENABLED set "PROFILE_CLEAN_ENABLED=false"

echo.
echo    当前配置:
echo         APP_HOST     : %APP_HOST%
echo         APP_PORT     : %APP_PORT%
echo         BROWSER_PORT : %BROWSER_PORT%
echo         AUTO_UPDATE  : %AUTO_UPDATE_ENABLED%
if defined BROWSER_PROFILE_DIR (
    echo         PROFILE_DIR   : %BROWSER_PROFILE_DIR%
) else (
    echo         PROFILE_DIR   : %cd%\chrome_profile
)
if defined BROWSER_PROFILE_NAME (
    echo         PROFILE_NAME  : %BROWSER_PROFILE_NAME%
)
echo         PROFILE_CLEAN : %PROFILE_CLEAN_ENABLED%
if /I "%PROXY_ENABLED%"=="true" (
    echo         PROXY        : %PROXY_ADDRESS%
) else (
    echo         PROXY        : 已禁用
)
echo.

REM ---------- 2) 检查 Python（增强版） ----------
echo [STEP] 检查 Python 环境
echo ----------------------------------------

set "PYTHON_CMD=python"
set "PYTHON_PATH="

REM 检查 python 命令是否存在
where python >nul 2>&1
if %errorlevel% neq 0 (
    if exist "venv\Scripts\python.exe" (
        set "PYTHON_CMD=venv\Scripts\python.exe"
        set "PYTHON_PATH=%cd%\venv\Scripts\python.exe"
        echo [WARN] 未找到系统 Python，使用现有虚拟环境 Python: !PYTHON_PATH!
    ) else (
        echo [WARN] 未找到 Python 命令
        call :FindInstalledPython
        if errorlevel 1 (
            call :OfferPythonInstall "未找到 Python 命令"
            if errorlevel 1 (
                pause
                exit /b 1
            )
        ) else (
            echo [OK] 找到 Python: !PYTHON_PATH!
        )
    )
)

REM 获取 python 命令的实际路径（只取第一个结果）
if /I "!PYTHON_CMD!"=="python" (
    for /f "tokens=*" %%i in ('where python 2^>nul') do (
        if not defined PYTHON_PATH set "PYTHON_PATH=%%i"
    )
)

REM 检测 Windows Store 占位符
set "IS_STORE_PYTHON=0"
if /I "!PYTHON_CMD!"=="python" (
    echo "!PYTHON_PATH!" | findstr /i "WindowsApps" >nul 2>&1
    if !errorlevel! equ 0 set "IS_STORE_PYTHON=1"
)

if "!IS_STORE_PYTHON!"=="1" (
    echo [ERROR] 检测到 Windows Store Python 占位符
    echo.
    echo    路径: !PYTHON_PATH!
    echo.
    echo    这不是真正的 Python，而是 Windows Store 的跳转链接。
    echo    它会导致虚拟环境创建失败。
    echo.
    echo    解决方案:
    echo         1. 按 Win+I 打开设置
    echo         2. 搜索 "应用执行别名" 或 "管理应用执行别名"
    echo         3. 找到 python.exe 和 python3.exe，将它们关闭
    echo         4. 从 https://www.python.org/downloads/ 安装完整版 Python
    echo            安装时务必勾选 "Add Python to PATH"
    echo.
    call :OfferPythonInstall "检测到 Windows Store Python 占位符"
    if errorlevel 1 (
        pause
        exit /b 1
    )
)

REM 尝试获取版本号（方法1: sys.version_info）
:CHECK_PYTHON_VERSION
set "PYTHON_VERSION="
for /f "tokens=*" %%i in ('"!PYTHON_CMD!" -c "import sys; print(sys.version_info.major,sys.version_info.minor,sep=chr(46))" 2^>nul') do set "PYTHON_VERSION=%%i"

REM 方法2: 如果方法1失败，尝试解析 --version 输出
if not defined PYTHON_VERSION (
    for /f "tokens=2 delims= " %%i in ('"!PYTHON_CMD!" --version 2^>^&1') do (
        for /f "tokens=1,2 delims=." %%a in ("%%i") do set "PYTHON_VERSION=%%a.%%b"
    )
)

REM 检查版本号是否获取成功
if not defined PYTHON_VERSION (
    echo [ERROR] 无法获取 Python 版本信息
    echo.
    echo    检测到的 Python 路径: !PYTHON_PATH!
    echo.
    echo    可能的原因:
    echo         1. Python 安装不完整或已损坏
    echo         2. Python 解释器无法正常执行
    echo.
    echo    诊断步骤 - 请手动运行以下命令:
    echo         python --version
    echo         python -c "print('hello')"
    echo.
    echo    如果上述命令报错，请重新安装 Python:
    echo         https://www.python.org/downloads/
    echo.
    call :OfferPythonInstall "无法获取 Python 版本信息"
    if errorlevel 1 (
        pause
        exit /b 1
    )
    goto :CHECK_PYTHON_VERSION
)

REM 检查版本是否满足要求 (>= 3.8)
set "PY_MAJOR="
set "PY_MINOR="
for /f "tokens=1,2 delims=." %%a in ("!PYTHON_VERSION!") do (
    set "PY_MAJOR=%%a"
    set "PY_MINOR=%%b"
)

set "VERSION_OK=0"
if defined PY_MAJOR if defined PY_MINOR (
    if !PY_MAJOR! gtr 3 set "VERSION_OK=1"
    if !PY_MAJOR! equ 3 if !PY_MINOR! geq 8 set "VERSION_OK=1"
)

if "!VERSION_OK!"=="0" (
    echo [ERROR] Python 版本过低
    echo.
    echo    当前版本: Python !PYTHON_VERSION!
    echo    最低要求: Python 3.8+
    echo.
    echo    建议安装固定版本 Python !PYTHON_INSTALL_VERSION!
    echo.
    call :OfferPythonInstall "Python 版本过低"
    if errorlevel 1 (
        pause
        exit /b 1
    )
    goto :CHECK_PYTHON_VERSION
)

echo [OK] Python !PYTHON_VERSION!
echo     路径: !PYTHON_PATH!
echo.

REM ---------- 3) 自动更新检查 ----------
if /I "%AUTO_UPDATE_ENABLED%"=="true" (
    echo [STEP] 自动更新
    echo ----------------------------------------
    echo.
    if exist "updater.py" (
        echo [INFO] 检查 GitHub 最新版本...
        "!PYTHON_CMD!" updater.py
        if !errorlevel! equ 0 (
            echo [INFO] 自动更新已应用，继续启动服务...
        ) else (
            echo [WARN] 本次未应用更新，继续启动服务
        )
    ) else (
        echo [WARN] 未找到 updater.py，跳过自动更新
    )
    echo.
) else (
    echo [INFO] 自动更新已禁用
    echo        本次不会自动应用更新；服务启动后仍会检查新版本并在设置图标提示
    echo        如需自动应用更新，请修改 .env 中的 AUTO_UPDATE_ENABLED=true
    echo.
)

REM ---------- 4) 检查目录结构 ----------
echo [STEP] 检查项目结构
echo ----------------------------------------

set "STRUCTURE_OK=1"

if not exist "app\core\browser.py" (
    echo [ERROR] 缺失: app\core\browser.py
    set "STRUCTURE_OK=0"
)
if not exist "app\services\config_engine.py" (
    echo [ERROR] 缺失: app\services\config_engine.py
    set "STRUCTURE_OK=0"
)
if not exist "config\sites.json" (
    echo [WARN] 缺失: config\sites.json，将自动创建
    if not exist "config" mkdir "config"
    echo {"_global": {"selector_definitions": []}} > "config\sites.json"
    echo [INFO] 已创建空配置文件
) else (
    echo [OK] 找到: config\sites.json
)
if not exist "main.py" (
    echo [ERROR] 缺失: main.py
    set "STRUCTURE_OK=0"
)

if "!STRUCTURE_OK!"=="0" (
    echo.
    echo [ERROR] 项目结构不完整，请检查文件是否齐全
    pause
    exit /b 1
)

echo [OK] 项目结构检查通过
echo.

REM ---------- 5) 虚拟环境（增强版） ----------
echo [STEP] 准备虚拟环境
echo ----------------------------------------

if not exist "venv" (
    echo [INFO] 创建虚拟环境...
    "!PYTHON_CMD!" -m venv venv 2>&1
    if !errorlevel! neq 0 (
        echo.
        echo [ERROR] 创建虚拟环境失败
        echo.
        echo    可能的原因:
        echo         1. Python 安装不完整（缺少 venv 模块）
        echo         2. 当前目录没有写入权限
        echo         3. 磁盘空间不足
        echo         4. 杀毒软件阻止
        echo.
        echo    解决方案:
        echo         1. 确保安装了完整版 Python（非精简版）
        echo         2. 尝试以管理员身份运行此脚本
        echo         3. 尝试运行: python -m ensurepip --upgrade
        echo         4. 临时关闭杀毒软件后重试
        echo.
        pause
        exit /b 1
    )
    echo [OK] 虚拟环境创建成功
) else (
    echo [OK] 虚拟环境已存在
)

REM 检查虚拟环境完整性
if not exist "venv\Scripts\activate.bat" (
    echo.
    echo [ERROR] 虚拟环境损坏，缺少 activate.bat
    echo.
    echo    解决方案:
    echo         1. 删除 venv 文件夹: rmdir /s /q venv
    echo         2. 重新运行此脚本
    echo.
    pause
    exit /b 1
)

if not exist "venv\Scripts\python.exe" (
    echo.
    echo [ERROR] 虚拟环境损坏，缺少 python.exe
    echo.
    echo    解决方案:
    echo         1. 删除 venv 文件夹: rmdir /s /q venv
    echo         2. 重新运行此脚本
    echo.
    pause
    exit /b 1
)

call venv\Scripts\activate.bat
echo [OK] 虚拟环境已激活
echo.

REM ---------- 6) 安装依赖（增强版） ----------
echo [STEP] 检查依赖
echo ----------------------------------------

REM 检查 requirements.txt 是否存在
if not exist "requirements.txt" (
    echo [ERROR] 缺少 requirements.txt 文件
    echo.
    echo    请确保项目文件完整，或从 GitHub 重新下载
    echo.
    pause
    exit /b 1
)

REM 检查 requirements.txt 的 hash 是否变化
set "REQ_HASH_FILE=venv\.req_hash"
set "CURRENT_HASH="
for /f "tokens=*" %%i in ('certutil -hashfile requirements.txt MD5 2^>nul ^| findstr /v ":"') do (
    if not defined CURRENT_HASH set "CURRENT_HASH=%%i"
)

REM 判断是否需要安装
set "NEED_INSTALL=0"

if not defined CURRENT_HASH (
    echo [WARN] 无法计算依赖文件哈希，将强制安装
    set "NEED_INSTALL=1"
)

REM 条件1: 哈希文件不存在（首次运行）
if "!NEED_INSTALL!"=="0" if not exist "!REQ_HASH_FILE!" set "NEED_INSTALL=1"

REM 条件2: 哈希变化（requirements.txt 被更新）
if "!NEED_INSTALL!"=="0" if exist "!REQ_HASH_FILE!" (
    set /p OLD_HASH=<"!REQ_HASH_FILE!"
    if not "!OLD_HASH!"=="!CURRENT_HASH!" set "NEED_INSTALL=1"
)

REM 条件3: 验证所有包是否真正已安装（防止之前安装不完整）
if "!NEED_INSTALL!"=="0" (
    if exist "check_deps.py" (
        echo [INFO] 验证已安装的依赖...
        venv\Scripts\python.exe check_deps.py >nul 2>&1
        if !errorlevel! neq 0 (
            echo [WARN] 检测到部分依赖缺失或损坏，将重新安装
            set "NEED_INSTALL=1"
        )
    )
)

if "!NEED_INSTALL!"=="1" (
    echo [INFO] 安装 Python 依赖包...
    echo.
    set "REQ_INSTALL_SOURCE=PyPI"
    venv\Scripts\python.exe -m pip install -r requirements.txt
    if !errorlevel! neq 0 (
        echo [WARN] 默认 PyPI 源安装失败，尝试使用国内镜像重试...
        echo [INFO] 镜像地址: !PIP_MIRROR_URL!
        echo.
        set "REQ_INSTALL_SOURCE=!PIP_MIRROR_URL!"
        venv\Scripts\python.exe -m pip install -r requirements.txt -i !PIP_MIRROR_URL!
    )
    if !errorlevel! neq 0 (
        echo.
        echo [ERROR] 依赖安装失败（已尝试 PyPI 和国内镜像）
        echo.
        echo    可能的原因:
        echo         1. 网络连接问题（无法访问 PyPI）
        echo         2. pip 版本过低
        echo         3. 某些包需要 C++ 编译器
        echo.
        echo    解决方案:
        echo         1. 检查网络连接，尝试访问 https://pypi.org
        echo         2. 升级 pip: python -m pip install --upgrade pip
        echo         3. 手动重试国内镜像:
        echo             pip install -r requirements.txt -i !PIP_MIRROR_URL!
        echo.
        REM 安装失败时删除哈希，确保下次重试
        if exist "!REQ_HASH_FILE!" del "!REQ_HASH_FILE!"
        pause
        exit /b 1
    )

    REM 二次验证：确认包真的装好了
    echo [INFO] 验证安装结果...
    venv\Scripts\python.exe -m pip check >nul 2>&1
    if !errorlevel! neq 0 (
        echo [WARN] pip check 报告依赖冲突，但不影响运行
    )

    REM 只有安装成功才写入哈希
    echo !CURRENT_HASH!> "!REQ_HASH_FILE!"
    echo.
    echo [OK] 依赖安装完成
    echo [INFO] 安装来源: !REQ_INSTALL_SOURCE!
) else (
    echo [OK] 依赖已是最新
)
echo.

REM ---------- 6.5) DrissionPage 反检测补丁 ----------
echo [STEP] 应用 DrissionPage 补丁
echo ----------------------------------------

if exist "patch_drissionpage.py" (
    venv\Scripts\python.exe patch_drissionpage.py
    if !errorlevel! neq 0 (
        echo [WARN] 补丁应用失败，网络监听模式可能触发 CF 检测
        echo         项目仍可正常运行（DOM 模式不受影响）
    )
) else (
    echo [WARN] 未找到 patch_drissionpage.py，跳过补丁
)
echo.

REM ---------- 7) 启动浏览器 ----------
echo [STEP] 准备 Chromium 内核浏览器
echo ----------------------------------------

if defined BROWSER_PROFILE_DIR (
    set "PROFILE_DIR=!BROWSER_PROFILE_DIR!"
) else (
    set "PROFILE_DIR=!PROJECT_DIR!\chrome_profile"
)
if not exist "!PROFILE_DIR!" mkdir "!PROFILE_DIR!" >nul 2>&1
echo [INFO] 浏览器配置目录: !PROFILE_DIR!

REM Clean profile data before launch when enabled.
if /I "!PROFILE_CLEAN_ENABLED!"=="true" (
    if exist "clean_profile.py" (
        echo [INFO] 执行浏览器配置瘦身...
        venv\Scripts\python.exe clean_profile.py "!PROFILE_DIR!"
        echo.
    ) else (
        echo [WARN] 未找到 clean_profile.py，跳过清理
        echo.
    )
) else (
    echo [INFO] 已禁用配置瘦身（PROFILE_CLEAN_ENABLED=!PROFILE_CLEAN_ENABLED!）
    echo.
)

REM Reuse an existing debugging browser when the port is already ready.
call :check_debug_port
if "!DEBUG_PORT_OK!"=="1" (
    echo [WARN] Debug port already in use, reuse existing browser instance.
    echo [WARN] If background tabs are slow, close browser and restart this script.
    echo [WARN] Restart lets script launch browser with anti-throttle flags.
    echo [OK] Debug port ready - !BROWSER_PORT!
    goto :BROWSER_READY
)

echo [INFO] 正在查找可用的 Chromium 内核浏览器...

set "BROWSER_EXE="
set "BROWSER_NAME="

if defined BROWSER_PATH call :CheckCustomBrowser
if defined BROWSER_EXE goto :BROWSER_FOUND

call :CheckBrowser "C:\Program Files\Google\Chrome\Application\chrome.exe" "Chrome"
if defined BROWSER_EXE goto :BROWSER_FOUND

call :CheckBrowser "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" "Chrome"
if defined BROWSER_EXE goto :BROWSER_FOUND

set "TEST_PATH=!LOCALAPPDATA!\Google\Chrome\Application\chrome.exe"
call :CheckBrowser "!TEST_PATH!" "Chrome"
if defined BROWSER_EXE goto :BROWSER_FOUND

call :CheckBrowser "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" "Edge"
if defined BROWSER_EXE goto :BROWSER_FOUND

call :CheckBrowser "C:\Program Files\Microsoft\Edge\Application\msedge.exe" "Edge"
if defined BROWSER_EXE goto :BROWSER_FOUND

set "TEST_PATH=!LOCALAPPDATA!\BraveSoftware\Brave-Browser\Application\brave.exe"
call :CheckBrowser "!TEST_PATH!" "Brave"
if defined BROWSER_EXE goto :BROWSER_FOUND

call :CheckBrowser "C:\Program Files\BraveSoftware\Brave-Browser\Application\brave.exe" "Brave"
if defined BROWSER_EXE goto :BROWSER_FOUND

set "TEST_PATH=!LOCALAPPDATA!\Vivaldi\Application\vivaldi.exe"
call :CheckBrowser "!TEST_PATH!" "Vivaldi"
if defined BROWSER_EXE goto :BROWSER_FOUND

call :CheckBrowser "C:\Program Files\Vivaldi\Application\vivaldi.exe" "Vivaldi"
if defined BROWSER_EXE goto :BROWSER_FOUND

set "TEST_PATH=!LOCALAPPDATA!\Programs\Opera\opera.exe"
call :CheckBrowser "!TEST_PATH!" "Opera"
if defined BROWSER_EXE goto :BROWSER_FOUND

call :CheckBrowser "C:\Program Files\Opera\opera.exe" "Opera"
if defined BROWSER_EXE goto :BROWSER_FOUND

echo.
echo [ERROR] 找不到任何可用的 Chromium 内核浏览器
echo.
echo    已检测以下浏览器 (按优先级排序):
echo         1. Chrome
echo         2. Microsoft Edge
echo         3. Brave
echo         4. Vivaldi
echo         5. Opera
echo.
echo    解决方案:
echo         - 安装上述任一浏览器
echo         - 或在 .env 文件中设置 BROWSER_PATH=你的浏览器完整路径
echo.
pause
exit /b 1

:BROWSER_FOUND
echo [OK] 检测到 !BROWSER_NAME!
echo [INFO] 路径: !BROWSER_EXE!

set "BROWSER_ARGS=--remote-debugging-port=!BROWSER_PORT! --user-data-dir=!PROFILE_DIR! --no-first-run --no-default-browser-check --disable-backgrounding-occluded-windows --disable-background-timer-throttling --disable-renderer-backgrounding --disable-features=CalculateNativeWinOcclusion,AutomaticTabDiscarding,TabFreeze,IntensiveWakeUpThrottling"
if defined BROWSER_PROFILE_NAME (
    set "BROWSER_ARGS=!BROWSER_ARGS! --profile-directory=!BROWSER_PROFILE_NAME!"
)

if /I "!PROXY_ENABLED!"=="true" (
    if defined PROXY_ADDRESS (
        set "BROWSER_ARGS=!BROWSER_ARGS! --proxy-server=!PROXY_ADDRESS!"
        if defined PROXY_BYPASS (
            set "BROWSER_ARGS=!BROWSER_ARGS! --proxy-bypass-list=!PROXY_BYPASS!"
        )
        echo [INFO] 代理已启用: !PROXY_ADDRESS!
    )
)

echo [INFO] 启动浏览器...
start "" "!BROWSER_EXE!" !BROWSER_ARGS! about:blank

echo [INFO] 等待 !BROWSER_NAME! 就绪...
set "WAIT_COUNT=0"
:WAIT_LOOP
if !WAIT_COUNT! geq 15 goto :WAIT_DONE
call :check_debug_port
if "!DEBUG_PORT_OK!"=="1" goto :WAIT_DONE
set /a WAIT_COUNT+=1
timeout /t 1 /nobreak >nul
goto :WAIT_LOOP

:WAIT_DONE
if "!DEBUG_PORT_OK!"=="1" (
    echo [OK] !BROWSER_NAME! 启动成功 - 端口 !BROWSER_PORT!
) else (
    echo [WARN] !BROWSER_NAME! 启动超时
    echo [ERROR] 未检测到远程调试端口 !BROWSER_PORT!，为避免服务误连到错误的浏览器，本次启动已中止
    echo [INFO] 当前建议使用独立的无空格配置目录，例如 C:\Users\QIU\AppData\Local\UniversalWebApiProfile
    echo.
    pause
    exit /b 1
)

:BROWSER_READY
echo.

REM ---------- 8) 显示版本信息 ----------
if exist "VERSION" (
    echo    版本信息:
    echo    ----------------------------------------
    type VERSION
    echo.
    echo    ----------------------------------------
)

REM ---------- 9) 启动服务 ----------
echo ========================================
echo    服务启动中...
echo ========================================
echo.
echo    API 地址:     http://%APP_HOST%:%APP_PORT%
echo    控制面板:     http://%APP_HOST%:%APP_PORT%/
echo    API 文档:     http://%APP_HOST%:%APP_PORT%/docs
echo.
echo    项目结构:
echo         配置目录:  %PROJECT_DIR%\config
echo         静态资源:  %PROJECT_DIR%\static
echo.
if /I "%AUTO_UPDATE_ENABLED%"=="true" (
    echo    [WARN] 自动更新: 已启用
) else (
    echo    自动更新: 已禁用（仍会启动后检查新版本）
)
echo.
echo    按 Ctrl+C 停止服务
echo    配置修改后会自动重启
echo ========================================
echo.

REM ========== 循环重启机制 ==========
:SERVICE_LOOP

venv\Scripts\python.exe main.py
set "EXIT_CODE=!errorlevel!"

if !EXIT_CODE! equ 0 (
    REM 正常退出（用户按 Ctrl+C）
    echo.
    echo [INFO] 服务已停止
    pause
    exit /b 0
)

if !EXIT_CODE! equ 3 (
    REM 退出码 3 = 配置更新需要重启
    echo.
    echo ========================================
    echo    检测到配置更新，正在重启服务...
    echo ========================================
    timeout /t 2 /nobreak >nul
    goto :SERVICE_LOOP
)

REM 其他退出码（异常退出）
echo.
echo [ERROR] 服务异常退出 (退出码: !EXIT_CODE!)
echo [INFO] 3 秒后自动重启...
timeout /t 3 /nobreak >nul
goto :SERVICE_LOOP

REM ===============================
REM 子程序区域
REM ===============================

:OfferPythonInstall
echo.
echo [INFO] %~1
echo.
echo    可自动下载安装固定版本 Python !PYTHON_INSTALL_VERSION! (64-bit)
echo    下载来源: https://www.python.org/ftp/python/!PYTHON_INSTALL_VERSION!/python-!PYTHON_INSTALL_VERSION!-amd64.exe
echo    安装范围: 当前用户
echo.
set "INSTALL_PYTHON_CHOICE="
set /p "INSTALL_PYTHON_CHOICE=是否自动下载并安装 Python !PYTHON_INSTALL_VERSION!？(Y/N): "
if /I not "!INSTALL_PYTHON_CHOICE!"=="Y" (
    echo [INFO] 已取消自动安装 Python
    exit /b 1
)

call :DownloadAndInstallPython
if errorlevel 1 exit /b 1

call :FindInstalledPython
if errorlevel 1 (
    echo [ERROR] Python 安装完成后仍未找到可用解释器
    echo        请重新打开终端后再运行 start.bat，或手动检查安装状态
    exit /b 1
)

echo [OK] Python 已就绪: !PYTHON_PATH!
exit /b 0

:DownloadAndInstallPython
set "PYTHON_INSTALL_URL=https://www.python.org/ftp/python/!PYTHON_INSTALL_VERSION!/python-!PYTHON_INSTALL_VERSION!-amd64.exe"
set "PYTHON_INSTALLER=%TEMP%\python-!PYTHON_INSTALL_VERSION!-amd64.exe"

echo.
echo [INFO] 正在下载 Python !PYTHON_INSTALL_VERSION!...
powershell -NoProfile -ExecutionPolicy Bypass -Command "$ProgressPreference='SilentlyContinue'; [Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '!PYTHON_INSTALL_URL!' -OutFile '!PYTHON_INSTALLER!'"
if errorlevel 1 (
    echo [ERROR] Python 安装包下载失败
    exit /b 1
)

if not exist "!PYTHON_INSTALLER!" (
    echo [ERROR] Python 安装包不存在: !PYTHON_INSTALLER!
    exit /b 1
)

echo [INFO] 正在静默安装 Python !PYTHON_INSTALL_VERSION!...
start /wait "" "!PYTHON_INSTALLER!" /quiet InstallAllUsers=0 PrependPath=1 Include_launcher=1 Include_pip=1 Include_test=0 SimpleInstall=1
set "PYTHON_INSTALL_EXIT=!errorlevel!"
if not "!PYTHON_INSTALL_EXIT!"=="0" if not "!PYTHON_INSTALL_EXIT!"=="3010" (
    echo [ERROR] Python 安装失败，安装器退出码: !PYTHON_INSTALL_EXIT!
    exit /b 1
)

if exist "!PYTHON_INSTALLER!" del /q "!PYTHON_INSTALLER!" >nul 2>&1
exit /b 0

:FindInstalledPython
set "PYTHON_CMD="
set "PYTHON_PATH="

set "LOCAL_PYTHON=%LOCALAPPDATA%\Programs\Python\Python!PYTHON_INSTALL_SHORT!\python.exe"
if exist "!LOCAL_PYTHON!" (
    set "PYTHON_CMD=!LOCAL_PYTHON!"
    set "PYTHON_PATH=!LOCAL_PYTHON!"
    set "PATH=%LOCALAPPDATA%\Programs\Python\Python!PYTHON_INSTALL_SHORT!;%LOCALAPPDATA%\Programs\Python\Python!PYTHON_INSTALL_SHORT!\Scripts;%PATH%"
    exit /b 0
)

set "SYSTEM_PYTHON=%ProgramFiles%\Python!PYTHON_INSTALL_SHORT!\python.exe"
if exist "!SYSTEM_PYTHON!" (
    set "PYTHON_CMD=!SYSTEM_PYTHON!"
    set "PYTHON_PATH=!SYSTEM_PYTHON!"
    exit /b 0
)

where py >nul 2>&1
if !errorlevel! equ 0 (
    for /f "tokens=*" %%i in ('py -!PYTHON_INSTALL_MAJOR_MINOR! -c "import sys; print(sys.executable)" 2^>nul') do (
        if not defined PYTHON_PATH set "PYTHON_PATH=%%i"
    )
    if defined PYTHON_PATH (
        set "PYTHON_CMD=!PYTHON_PATH!"
        exit /b 0
    )
)

where python >nul 2>&1
if !errorlevel! equ 0 (
    for /f "tokens=*" %%i in ('where python 2^>nul') do (
        if not defined PYTHON_PATH set "PYTHON_PATH=%%i"
    )
    if defined PYTHON_PATH (
        echo "!PYTHON_PATH!" | findstr /i "WindowsApps" >nul 2>&1
        if !errorlevel! neq 0 (
            set "PYTHON_CMD=python"
            exit /b 0
        )
    )
)

exit /b 1

:check_debug_port
set "DEBUG_PORT_OK=0"
powershell -NoProfile -Command "try { $c = New-Object System.Net.Sockets.TcpClient; $c.Connect('127.0.0.1', %BROWSER_PORT%); $c.Close(); exit 0 } catch { exit 1 }" >nul 2>&1
if !errorlevel! equ 0 set "DEBUG_PORT_OK=1"
goto :eof

:SetEnvVar
REM Safely set env vars loaded from .env
if not "%~1"=="" (
    set "ENV_KEY=%~1"
    set "ENV_VAL=%~2"

    REM Support "KEY = value"
    set "ENV_KEY=!ENV_KEY: =!"

    REM Strip one unexpected leading char, such as UTF-8 BOM
    echo(!ENV_KEY!^| findstr /r "^[A-Za-z_][A-Za-z0-9_]*$" >nul 2>&1
    if errorlevel 1 if defined ENV_KEY set "ENV_KEY=!ENV_KEY:~1!"

    if defined ENV_VAL (
        REM Trim leading spaces from the value
        for /f "tokens=* delims= " %%Z in ("!ENV_VAL!") do set "ENV_VAL=%%Z"
        call :TrimTrailingSpaces ENV_VAL

        if "!ENV_VAL:~0,1!"=="^"" if "!ENV_VAL:~-1!"=="^"" set "ENV_VAL=!ENV_VAL:~1,-1!"
        if "!ENV_VAL:~0,1!"=="'" if "!ENV_VAL:~-1!"=="'" set "ENV_VAL=!ENV_VAL:~1,-1!"
    )

    if defined ENV_KEY set "!ENV_KEY!=!ENV_VAL!"
    set "ENV_KEY="
    set "ENV_VAL="
    set "ENV_LOADED=1"
)
goto :eof

:TrimTrailingSpaces
if "%~1"=="" goto :eof
set "TRIM_VAR_NAME=%~1"
call set "TRIM_VAR_VALUE=%%%TRIM_VAR_NAME%%%"
if not defined TRIM_VAR_VALUE goto :trim_done
:trim_loop
if not defined TRIM_VAR_VALUE goto :trim_done
if not "!TRIM_VAR_VALUE:~-1!"==" " goto :trim_done
set "TRIM_VAR_VALUE=!TRIM_VAR_VALUE:~0,-1!"
goto :trim_loop
:trim_done
call set "%TRIM_VAR_NAME%=%%TRIM_VAR_VALUE%%"
set "TRIM_VAR_NAME="
set "TRIM_VAR_VALUE="
goto :eof

:CheckCustomBrowser
REM Check user-defined browser path
if exist "!BROWSER_PATH!" (
    set "BROWSER_EXE=!BROWSER_PATH!"
    set "BROWSER_NAME=自定义浏览器"
    echo [INFO] 使用自定义浏览器路径
) else (
    echo [WARN] BROWSER_PATH 指定的路径不存在: !BROWSER_PATH!
)
goto :eof

:CheckBrowser
REM 参数: %~1=路径, %~2=浏览器名称
if exist "%~1" (
    set "BROWSER_EXE=%~1"
    set "BROWSER_NAME=%~2"
)
goto :eof