Import-Module (Join-Path $PSScriptRoot "../helpers/pester-extensions.psm1")

BeforeAll {
    function Get-UseNodeLogs {
        # GitHub Windows images don't have `HOME` variable
        $homeDir = $env:HOME ?? $env:HOMEDRIVE
        $logsFolderPath = Join-Path -Path $homeDir -ChildPath "runners/*/_diag/pages" -Resolve

        $useNodeLogFile = Get-ChildItem -Path $logsFolderPath | Where-Object {
            $logContent = Get-Content $_.Fullname -Raw
            return $logContent -match "setup-node@v"
        } | Select-Object -First 1
        return $useNodeLogFile.Fullname
    }
}

Describe "Node.js" {
    It "is available" {
        "node --version" | Should -ReturnZeroExitCode
    }

    It "version is correct" {
        $versionOutput = Invoke-Expression "node --version"
        $versionOutput | Should -Match $env:VERSION
    }

    It "is used from tool-cache" {
        $nodePath = (Get-Command "node").Path
        $nodePath | Should -Not -BeNullOrEmpty
        
        # GitHub Windows images don't have `AGENT_TOOLSDIRECTORY` variable
        $toolcacheDir = $env:AGENT_TOOLSDIRECTORY ?? $env:RUNNER_TOOL_CACHE
        $expectedPath = Join-Path -Path $toolcacheDir -ChildPath "node"
        $nodePath.startsWith($expectedPath) | Should -BeTrue -Because "'$nodePath' is not started with '$expectedPath'"
    }

    BeforeAll {
    Write-Host "Architecture: $($env:PROCESSOR_ARCHITECTURE)"
    Write-Host "OS: $($env:OS)"
    }

  It "cached version is used without downloading" {
    # Set a custom variable to check for architecture and OS
    $isArm64Windows = if ($IsWindows -and ([System.Environment]::Is64BitOperatingSystem)) {$true} else {$false}
    $isArm64Linux = if ((uname -m) -eq 'aarch64' -and ((uname -o) -eq 'GNU/Linux')) {$true} else {$false}

    if (!$isArm64Windows -and !$isArm64Linux) {
        # Analyze output of previous steps to check if Node.js was consumed from cache or downloaded
        $useNodeLogFile = Get-UseNodeLogs
        $useNodeLogFile | Should -Exist
        $useNodeLogContent = Get-Content $useNodeLogFile -Raw
        $useNodeLogContent | Should -Match "Found in cache"
    } else {
        # Skip the test for arm64 on Windows and Linux
        Set-ItResult -Skipped -Because "Skipping this test for arm64 on Windows and Linux"
    }
}

    It "Run simple code" {
        "node ./simple-test.js" | Should -ReturnZeroExitCode
    }
}