# ============================================================
#  后端快速打包命令 (PowerShell)
#  调用 build_app.py (PyInstaller) 一键打包后端为 exe
#
#  用法:
#     .\build_backend.ps1                    # 一键打包
#     .\build_backend.ps1 -Clean             # 彻底重建(更慢更稳)
#     .\build_backend.ps1 -Timeout 3600      # 自定义构建超时(秒)
# ============================================================

param(
    [switch]$Clean,
    [int]$Timeout = 1800
)

$ErrorActionPreference = 'Stop'

# 兼容中文输出编码
try {
    [Console]::OutputEncoding = [System.Text.Encoding]::UTF8
} catch {}

# 切换到脚本所在目录
Set-Location -Path $PSScriptRoot

$pythonExe = Join-Path $PSScriptRoot 'venv\Scripts\python.exe'

# 检查虚拟环境
if (-not (Test-Path $pythonExe)) {
    Write-Host "[错误] 未找到虚拟环境: $pythonExe" -ForegroundColor Red
    Write-Host "请先创建虚拟环境并安装依赖:"
    Write-Host "    python -m venv venv"
    Write-Host "    venv\Scripts\pip install -r requirements.txt"
    Write-Host "    venv\Scripts\pip install -r requirements_build.txt"
    Read-Host "`n按回车键退出"
    exit 1
}

Write-Host "============================================================"
Write-Host "  后端快速打包 (PyInstaller)"
Write-Host "  虚拟环境: $pythonExe"
Write-Host "  附加参数: Clean=$Clean Timeout=$Timeout"
Write-Host "  输出目录: dist\BodyBalanceBackend\"
Write-Host "============================================================"
Write-Host ""

# 组装 build_app.py 参数
$buildArgs = @('build_app.py', '--no-pause')
if ($Clean) {
    $buildArgs += '--clean'
}
$buildArgs += '--timeout', "$Timeout"

& $pythonExe @buildArgs
$exitCode = $LASTEXITCODE
if ($null -eq $exitCode) {
    $exitCode = 1
}

Write-Host ""
if ($exitCode -eq 0) {
    Write-Host "[成功] 后端打包完成，产物位于 dist\BodyBalanceBackend\" -ForegroundColor Green
} else {
    Write-Host "[失败] 后端打包失败，退出码 $exitCode，请查看上方日志" -ForegroundColor Red
}
Read-Host "`n按回车键退出"
exit $exitCode