@echo off
chcp 65001 >nul
setlocal enabledelayedexpansion

set "ROOT=%~dp0"
if "%ROOT:~-1%"=="\" set "ROOT=%ROOT:~0,-1%"
set "TOOLS=%ROOT%\tools\"
set "CMAKE_EXE=%TOOLS%cmake\bin\cmake.exe"
set "NINJA_EXE=%TOOLS%ninja\ninja.exe"
set "CLANG_EXE=%TOOLS%llvm\bin\clang-cl.exe"
set "CLANGXX_EXE=%TOOLS%llvm\bin\clang-cl.exe"
set "CONAN_EXE=%TOOLS%.venv\Scripts\conan.exe"

:: ============================================================
:: 1. 检查工具链，优先使用 tools\，缺失时回退到 PATH
:: ============================================================
echo [dstalk] 检查工具链...

if not exist "%CMAKE_EXE%" set "CMAKE_EXE=cmake"
if not exist "%NINJA_EXE%" set "NINJA_EXE=ninja"
if not exist "%CLANG_EXE%" (
    set "CLANG_EXE=clang-cl.exe"
    set "CLANGXX_EXE=clang-cl.exe"
)
if not exist "%CONAN_EXE%" set "CONAN_EXE=conan"

"%CMAKE_EXE%" --version >nul 2>&1 || (
    echo   [ERROR] CMake 未找到，请先运行 tools\setup.bat 或加入 PATH
    pause & exit /b 1
)
"%NINJA_EXE%" --version >nul 2>&1 || (
    echo   [ERROR] Ninja 未找到，请先运行 tools\setup.bat 或加入 PATH
    pause & exit /b 1
)
"%CLANG_EXE%" --version >nul 2>&1 || (
    echo   [ERROR] LLVM/Clang 未找到，请先运行 tools\setup.bat 或加入 PATH
    pause & exit /b 1
)
for /f "tokens=1,2,3" %%a in ('"%CLANG_EXE%" --version 2^>nul') do (
    if "%%a %%b"=="clang version" set "CLANG_VERSION=%%c"
)
for /f "tokens=1 delims=." %%v in ("!CLANG_VERSION!") do set "CLANG_MAJOR=%%v"
if "!CLANG_MAJOR!"=="" (
    echo   [ERROR] 无法检测 Clang 版本
    pause & exit /b 1
)
"%CONAN_EXE%" --version >nul 2>&1 || (
    echo   [ERROR] Conan2 未找到，请先运行 tools\setup.bat 或加入 PATH
    echo   需要已安装 Python 3.10+
    pause & exit /b 1
)

if exist "%TOOLS%env.bat" call "%TOOLS%env.bat"

:: ============================================================
:: 2. 检测并加载 MSVC 环境
:: ============================================================
set "VCVARS="
set "VS_YEAR="
for %%v in (2022 2019 2017) do (
    if not defined VCVARS (
        for %%e in (Professional Community Enterprise BuildTools) do (
            if not defined VCVARS if exist "C:\Program Files (x86)\Microsoft Visual Studio\%%v\%%e\VC\Auxiliary\Build\vcvarsall.bat" (
                set "VCVARS=C:\Program Files (x86)\Microsoft Visual Studio\%%v\%%e\VC\Auxiliary\Build\vcvarsall.bat"
                set "VS_YEAR=%%v"
            )
            if not defined VCVARS if exist "C:\Program Files\Microsoft Visual Studio\%%v\%%e\VC\Auxiliary\Build\vcvarsall.bat" (
                set "VCVARS=C:\Program Files\Microsoft Visual Studio\%%v\%%e\VC\Auxiliary\Build\vcvarsall.bat"
                set "VS_YEAR=%%v"
            )
        )
    )
)

if "%VCVARS%"=="" (
    echo   [ERROR] 未找到 Visual Studio Build Tools
    echo   请安装: https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2022
    pause & exit /b 1
)
echo [dstalk] 加载 MSVC 环境...
call "%VCVARS%" x64 >nul 2>&1
set "MSVC_RUNTIME_VERSION=v143"
set "MSVC_CONAN_VERSION=193"
set "CONAN_CPPSTD=20"
if "!VS_YEAR!"=="2019" (
    set "MSVC_RUNTIME_VERSION=v142"
    set "MSVC_CONAN_VERSION=192"
)
if "!VS_YEAR!"=="2017" (
    set "MSVC_RUNTIME_VERSION=v141"
    set "MSVC_CONAN_VERSION=191"
    set "CONAN_CPPSTD=17"
)

echo [dstalk] MSVC runtime: !MSVC_RUNTIME_VERSION!

:: ============================================================
:: 3. 使用 Clang 编译器
:: ============================================================
set "CC=%CLANG_EXE%"
set "CXX=%CLANGXX_EXE%"

cd /d "%ROOT%"

:: ============================================================
:: 4. Conan 安装依赖
:: ============================================================
echo [dstalk] Conan 安装/刷新依赖...
call "%CONAN_EXE%" install deps/ -of build --build=missing -s compiler=msvc -s compiler.version=!MSVC_CONAN_VERSION! -s compiler.cppstd=!CONAN_CPPSTD! -s compiler.runtime=dynamic -s compiler.runtime_type=Release -c tools.cmake.cmaketoolchain:generator=Ninja
if !errorlevel! neq 0 (
    echo   [ERROR] Conan 安装失败
    pause & exit /b 1
)

set "CONAN_GENERATORS=%ROOT%\build\build\Release\generators"

:: ============================================================
:: 5. CMake 配置 + Ninja 编译
:: ============================================================
echo [dstalk] CMake 配置 + 编译...
"%CMAKE_EXE%" -S "%ROOT%" -B "%ROOT%\build" -G Ninja ^
  -DCMAKE_MAKE_PROGRAM="%NINJA_EXE%" ^
  -DCMAKE_C_COMPILER="%CLANG_EXE%" ^
  -DCMAKE_CXX_COMPILER="%CLANGXX_EXE%" ^
  -DCMAKE_TOOLCHAIN_FILE="%CONAN_GENERATORS%\conan_toolchain.cmake" ^
  -DCMAKE_PREFIX_PATH="%CONAN_GENERATORS%" ^
  -DCMAKE_BUILD_TYPE=Release ^
  -DDSTALK_BUILD_GUI=OFF
if !errorlevel! neq 0 (
    echo   [ERROR] CMake 配置失败
    pause & exit /b 1
)

"%CMAKE_EXE%" --build "%ROOT%\build"
if !errorlevel! neq 0 (
    echo   [ERROR] 编译失败
    pause & exit /b 1
)

echo.
echo ============================================
echo   编译成功!
echo   build\dstalk-core\dstalk.dll
echo   build\dstalk-cli\dstalk-cli.exe
echo ============================================
pause