param(
    [switch]$SkipNpmInstall,
    [switch]$SkipDotnetRestore,
    [switch]$SkipBuild
)

Set-StrictMode -Version Latest
$ErrorActionPreference = "Stop"

function Invoke-Step {
    param(
        [Parameter(Mandatory = $true)][string]$Name,
        [Parameter(Mandatory = $true)][scriptblock]$Action
    )

    Write-Host "==> $Name"
    & $Action
    if ($LASTEXITCODE -ne 0) {
        throw "Step failed: $Name"
    }
}

$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$repoRoot = Split-Path -Parent $scriptDir

Push-Location $repoRoot
try {
    if (-not $SkipNpmInstall) {
        Invoke-Step -Name "Install frontend tooling (npm install)" -Action {
            npm install
        }
    }

    Invoke-Step -Name "Lint frontend" -Action {
        npm run lint
    }

    Invoke-Step -Name "Check frontend formatting" -Action {
        npm run format:check
    }

    if (-not $SkipDotnetRestore) {
        Invoke-Step -Name "Restore .NET solution" -Action {
            dotnet restore GameList.sln
        }
    }

    if (-not $SkipBuild) {
        Invoke-Step -Name "Build .NET solution (warnings as errors)" -Action {
            dotnet build GameList.sln --no-restore -warnaserror
        }
    }

    Invoke-Step -Name "Run tests" -Action {
        if ($SkipBuild) {
            dotnet test GameList.Tests/GameList.Tests.csproj --verbosity normal --collect:"XPlat Code Coverage"
        }
        else {
            dotnet test GameList.Tests/GameList.Tests.csproj --no-build --verbosity normal --collect:"XPlat Code Coverage"
        }
    }

    Invoke-Step -Name "Enforce coverage thresholds" -Action {
        pwsh ./scripts/check-coverage.ps1 -MinLineRate 0.90 -MinBranchRate 0.70
    }

    Write-Host "CI checks passed."
}
finally {
    Pop-Location
}