$ErrorActionPreference = 'Stop'

$workspacePath = (Resolve-Path (Join-Path $PSScriptRoot '..\..')).Path
$compiler = Get-Command gcc.exe -ErrorAction SilentlyContinue
if ($null -eq $compiler)
{
    throw 'gcc.exe was not found; PLSR host tests cannot run.'
}

$outputDirectory = Join-Path $workspacePath 'tmp'
if (-not (Test-Path -LiteralPath $outputDirectory))
{
    New-Item -ItemType Directory -Path $outputDirectory | Out-Null
}

$tests = @(
    @{
        Name = 'test_plc_device'
        Sources = @(
            "$workspacePath\PLSR\Src\plc_device.c"
            "$workspacePath\PLSR\Src\plsr_persistence.c"
            "$workspacePath\PLSR\Test\test_plc_device.c"
        )
    },
    @{
        Name = 'test_plsr_core'
        Sources = @(
            "$workspacePath\PLSR\Src\plc_device.c"
            "$workspacePath\PLSR\Src\plsr_persistence.c"
            "$workspacePath\PLSR\Src\plsr_resource.c"
            "$workspacePath\PLSR\Src\plsr_job.c"
            "$workspacePath\PLSR\Src\plsr_path.c"
            "$workspacePath\PLSR\Src\plsr_core.c"
            "$workspacePath\PLSR\Test\test_plsr_core.c"
        )
    },
    @{
        Name = 'test_plsr_job'
        Sources = @(
            "$workspacePath\PLSR\Src\plc_device.c"
            "$workspacePath\PLSR\Src\plsr_persistence.c"
            "$workspacePath\PLSR\Src\plsr_resource.c"
            "$workspacePath\PLSR\Src\plsr_job.c"
            "$workspacePath\PLSR\Src\plsr_path.c"
            "$workspacePath\PLSR\Src\plsr_core.c"
            "$workspacePath\PLSR\Test\test_plsr_job.c"
        )
    },
    @{
        Name = 'test_plsr_path'
        Sources = @(
            "$workspacePath\PLSR\Src\plc_device.c"
            "$workspacePath\PLSR\Src\plsr_persistence.c"
            "$workspacePath\PLSR\Src\plsr_resource.c"
            "$workspacePath\PLSR\Src\plsr_job.c"
            "$workspacePath\PLSR\Src\plsr_path.c"
            "$workspacePath\PLSR\Src\plsr_core.c"
            "$workspacePath\PLSR\Test\test_plsr_path.c"
        )
    },
    @{
        Name = 'test_plsr_profile'
        Sources = @(
            "$workspacePath\PLSR\Src\plsr_profile.c"
            "$workspacePath\PLSR\Test\test_plsr_profile.c"
        )
    }
)

foreach ($test in $tests)
{
    $outputPath = Join-Path $outputDirectory "$($test.Name).exe"
    $arguments = @(
        '-std=c11'
        '-Wall'
        '-Wextra'
        '-Werror'
        '-DPLSR_HOST_TEST'
        "-I$workspacePath\PLSR\Inc"
    ) + $test.Sources + @('-o', $outputPath, '-lm')

    try
    {
        & $compiler.Source @arguments
        if ($LASTEXITCODE -ne 0)
        {
            throw "$($test.Name) compilation failed with exit code $LASTEXITCODE."
        }

        & $outputPath
        if ($LASTEXITCODE -ne 0)
        {
            throw "$($test.Name) failed with exit code $LASTEXITCODE."
        }
    }
    finally
    {
        if (Test-Path -LiteralPath $outputPath)
        {
            Remove-Item -LiteralPath $outputPath -Force
        }
    }
}