param(
    [Parameter(Mandatory = $true)]
    [string]$Target
)

Write-Host "============================="
Write-Host "Unity Build Starting"
Write-Host "Target: $Target"
Write-Host "============================="

if ([string]::IsNullOrWhiteSpace($Target)) {
    throw "ERROR: Target was empty. TeamCity did not pass unity.target correctly."
}

$config = Get-Content ".\ci\toolchain.json" | ConvertFrom-Json

if (-not $config.targets.$Target) {
    throw "Unknown build target: $Target"
}

$t = $config.targets.$Target

$UnityExe = Join-Path $config.unityRoot "$($config.unityVersion)\Editor\Unity.exe"

if (!(Test-Path $UnityExe)) {
    throw "Unity not installed at expected path: $UnityExe"
}

Write-Host "Using Unity: $UnityExe"
Write-Host "Executing method: $($t.method)"
Write-Host "Output: $($t.outputPath)"

& $UnityExe `
    -batchmode `
    -nographics `
    -quit `
    -projectPath $PWD `
    -executeMethod $t.method `
    -logFile -

if ($LASTEXITCODE -ne 0) {
    throw "Unity build FAILED for target: $Target"
}

Write-Host "Build SUCCESS: $Target"