@echo off
REM Build dsh-launcher.exe for Windows (amd64).
REM
REM 用法: scripts\build-windows.bat
REM
REM 前置依赖(Windows 上装好后):
REM   - Go 1.21+                  https://go.dev/dl/
REM   - Node.js 18+               https://nodejs.org/
REM   - Wails CLI                 go install github.com/wailsapp/wails/v2/cmd/wails@latest
REM   - WebView2 Runtime          Win10 1803+ 自带,否则 https://aka.ms/webview2
REM   - MSVC build tools          https://visualstudio.microsoft.com/downloads/ (Build Tools for Visual Studio, 勾选 "Desktop development with C++")
REM
REM 注意: Wails v2 的 Windows build 需要 MSVC toolchain (cgo 编译 webview2 loader)。
REM 不能在 macOS / Linux 上 cross-compile 出 .exe。
REM
REM 产物: build\bin\dsh-launcher.exe

setlocal enabledelayedexpansion

cd /d "%~dp0\.."

echo ^>^> dsh-launcher · Windows build
echo.

REM 1. 基础工具检查
where go >nul 2>nul
if errorlevel 1 (
  echo [X] go not installed
  exit /b 1
)
where node >nul 2>nul
if errorlevel 1 (
  echo [X] node not installed
  exit /b 1
)
where npm >nul 2>nul
if errorlevel 1 (
  echo [X] npm not installed
  exit /b 1
)
where wails >nul 2>nul
if errorlevel 1 (
  echo [X] wails CLI not installed - run: go install github.com/wailsapp/wails/v2/cmd/wails@latest
  exit /b 1
)

REM 2. 检查 WINDOWS 环境
if not "%OS%"=="Windows_NT" (
  echo [X] must run on Windows, current: %OS%
  exit /b 1
)

REM 3. 同步前端依赖
echo ^>^> npm install
cd frontend
call npm install
if errorlevel 1 (
  echo [X] npm install failed
  exit /b 1
)
cd ..

REM 4. 编译
echo.
echo ^>^> wails build
wails build -clean -platform windows/amd64
if errorlevel 1 (
  echo [X] wails build failed
  exit /b 1
)

REM 5. 校验产物
set EXE=build\bin\dsh-launcher.exe
if not exist "%EXE%" (
  echo [X] %EXE% not found
  exit /b 1
)

echo.
echo [OK] exe: %EXE%
echo   size: %~z1 bytes
echo.
echo   run:   %EXE%
echo   build dir: build\bin\
echo.

endlocal