@echo off
chcp 65001 >nul
setlocal enabledelayedexpansion

set "TOOLS=%~dp0"

echo ============================================
echo   dstalk 工具链 — 便携安装
echo   目标: %TOOLS%
echo ============================================
echo.

:: ============================================================
:: 0. 检测 Visual Studio Build Tools (MSVC 头文件/库)
::    这是 Windows C++ 编译的硬依赖, 需单独安装
:: ============================================================
echo [0/5] 检测 MSVC (Visual Studio Build Tools) ...
set "VS_FOUND="
for %%v in (2022 2019 2017) do (
    for %%e in (Professional Community Enterprise BuildTools) do (
        if exist "C:\Program Files (x86)\Microsoft Visual Studio\%%v\%%e\VC\Auxiliary\Build\vcvarsall.bat" set "VS_FOUND=%%v %%e"
        if exist "C:\Program Files\Microsoft Visual Studio\%%v\%%e\VC\Auxiliary\Build\vcvarsall.bat" set "VS_FOUND=%%v %%e"
    )
)
if defined VS_FOUND (
    echo   [OK] 已安装: !VS_FOUND!
) else (
    echo   [WARN] 未找到 Visual Studio Build Tools
    echo   这是 C++ 编译必需的 (提供 vcruntime.h / msvcrt.lib 等)
    echo.
    echo   请下载安装: https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2022
    echo   安装时勾选 "使用 C++ 的桌面开发" 工作负载
    echo.
    echo   安装完成后重新运行 setup.bat
    pause
    exit /b 1
)

:: ============================================================
:: 1. CMake (便携 zip, ~50MB)
:: ============================================================
echo [1/5] CMake ...
if exist "%TOOLS%cmake\bin\cmake.exe" (
    echo   [OK] 已存在
) else (
    mkdir "%TOOLS%cmake" 2>nul
    set "URL=https://github.com/Kitware/CMake/releases/download/v3.31.6/cmake-3.31.6-windows-x86_64.zip"
    echo   下载中...
    curl -L -o "%TOOLS%cmake\cmake.zip" "!URL!" 2>nul
    if !errorlevel! neq 0 (
        set "URL=https://github.com/Kitware/CMake/releases/download/v3.30.3/cmake-3.30.3-windows-x86_64.zip"
        curl -L -o "%TOOLS%cmake\cmake.zip" "!URL!" 2>nul
    )
    if !errorlevel! neq 0 (
        echo   [FAIL] 请手动下载: https://cmake.org/download/
        echo   选择 cmake-*-windows-x86_64.zip 解压到 %TOOLS%cmake\
    ) else (
        powershell -Command "Expand-Archive -Force '%TOOLS%cmake\cmake.zip' '%TOOLS%cmake\tmp\'"
        for /d %%d in ("%TOOLS%cmake\tmp\cmake-*") do xcopy /E /Y "%%d\*" "%TOOLS%cmake\" >nul
        rmdir /s /q "%TOOLS%cmake\tmp" 2>nul
        del "%TOOLS%cmake\cmake.zip" 2>nul
        echo   [OK] CMake
    )
)

:: ============================================================
:: 2. Ninja (单文件 ~300KB)
:: ============================================================
echo [2/5] Ninja ...
if exist "%TOOLS%ninja\ninja.exe" (
    echo   [OK] 已存在
) else (
    mkdir "%TOOLS%ninja" 2>nul
    curl -L -o "%TOOLS%ninja\ninja.zip" "https://github.com/ninja-build/ninja/releases/download/v1.12.1/ninja-win64.zip" 2>nul
    if !errorlevel! neq 0 (
        curl -L -o "%TOOLS%ninja\ninja.zip" "https://github.com/ninja-build/ninja/releases/download/v1.11.1/ninja-win64.zip" 2>nul
    )
    if !errorlevel! neq 0 (
        echo   [FAIL] 请手动下载: https://github.com/ninja-build/ninja/releases
    ) else (
        powershell -Command "Expand-Archive -Force '%TOOLS%ninja\ninja.zip' '%TOOLS%ninja\'"
        del "%TOOLS%ninja\ninja.zip" 2>nul
        echo   [OK] Ninja
    )
)

:: ============================================================
:: 3. LLVM/Clang (便携, ~1.2GB)
:: ============================================================
echo [3/5] LLVM/Clang ...
if exist "%TOOLS%llvm\bin\clang.exe" (
    echo   [OK] 已存在
) else (
    mkdir "%TOOLS%llvm" 2>nul
    echo   下载中 (~1.2GB, 耐心等待)...
    curl -L -o "%TOOLS%llvm\llvm.exe" "https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.7/LLVM-19.1.7-win64.exe" 2>nul
    if !errorlevel! neq 0 (
        echo   [FAIL] 请手动下载: https://github.com/llvm/llvm-project/releases
        echo   选择 LLVM-*-win64.exe, 运行后复制安装目录到 %TOOLS%llvm\
    ) else (
        "%TOOLS%llvm\llvm.exe" /S /D="%TOOLS%llvm"
        del "%TOOLS%llvm\llvm.exe" 2>nul
        echo   [OK] LLVM
    )
)

:: ============================================================
:: 4. Python venv + Conan2
:: ============================================================
echo [4/5] Python venv + Conan2 ...
set "PYTHON="
for %%p in (python python3) do (
    if not defined PYTHON (
        where %%p >nul 2>nul
        if !errorlevel! equ 0 set "PYTHON=%%p"
    )
)
if not defined PYTHON (
    echo   [FAIL] 未找到 Python 3.10+
    echo   请先安装 Python，并确保 python.exe 在 PATH 中
    pause
    exit /b 1
)

if not exist "%TOOLS%.venv\Scripts\python.exe" (
    call %PYTHON% -m venv "%TOOLS%.venv"
    if !errorlevel! neq 0 (
        echo   [FAIL] 创建 Python venv 失败
        pause
        exit /b 1
    )
)

call "%TOOLS%.venv\Scripts\python.exe" -m pip install --upgrade pip
if !errorlevel! neq 0 (
    echo   [FAIL] pip 更新失败
    pause
    exit /b 1
)

call "%TOOLS%.venv\Scripts\python.exe" -m pip install "conan>=2,<3"
if !errorlevel! neq 0 (
    echo   [FAIL] Conan2 安装失败
    pause
    exit /b 1
)
echo   [OK] Conan2

:: ============================================================
:: 5. 配置 Conan profile
:: ============================================================
echo [5/5] 配置 Conan ...
call "%TOOLS%.venv\Scripts\conan.exe" profile detect --force 2>nul
if errorlevel 1 (
    echo   [WARN] Conan profile 配置失败 (可能首次运行需手动配置)
)

echo.
echo ============================================
echo   完成! 所有工具已就绪
echo ============================================
echo.
echo   下一步: 回到项目根目录运行 build.bat
pause