# Image Processing Benchmark Runner
# This script provides easy access to common benchmark scenarios

param(
    [Parameter(Position=0)]
    [ValidateSet("all", "quick", "parallel", "chunks", "sizes", "stress", "help")]
    [string]$Scenario = "help",
    
    [switch]$Fast,
    [switch]$DetailedOutput
)

$projectPath = "MaddoShared.Benchmarks"

function Show-Help {
    Write-Host @"
Image Processing Benchmark Runner
==================================

Usage: .\run-benchmarks.ps1 [scenario] [-Fast] [-DetailedOutput]

Scenarios:
  all       - Run all benchmarks (60-120 minutes)
  quick     - Fast test run for development (5-10 minutes)
  parallel  - Test parallel processing strategies (20-30 minutes)
  chunks    - Optimize chunk size (20-30 minutes)
  sizes     - Test different image sizes (45-90 minutes)
  stress    - Large-scale stress test (2-4 hours)
  help      - Show this help message

Flags:
  -Fast           - Use dry run for faster but less accurate results
  -DetailedOutput - Show detailed output

Examples:
  .\run-benchmarks.ps1 quick
  .\run-benchmarks.ps1 parallel -Fast
  .\run-benchmarks.ps1 stress -DetailedOutput

Results will be saved to: MaddoShared.Benchmarks\BenchmarkDotNet.Artifacts\results\
"@
}

function Run-Benchmark {
    param(
        [string]$Filter,
        [string]$Description
    )
    
    Write-Host "`n========================================" -ForegroundColor Cyan
    Write-Host " $Description" -ForegroundColor Cyan
    Write-Host "========================================`n" -ForegroundColor Cyan
    
    $args = @("-c", "Release")
    
    if ($Filter) {
        $args += @("--", "--filter", $Filter)
    }
    
    # Note: We don't pass --job arguments anymore because they override
    # the InProcess toolchain configuration needed for Windows compatibility
    if ($Fast) {
        Write-Host "Note: Fast mode (-Fast) requested but not using --job dry" -ForegroundColor Yellow
        Write-Host "Reason: --job arguments override InProcess toolchain config" -ForegroundColor Yellow
        Write-Host "The benchmark will run with the default InProcessConfig settings.`n" -ForegroundColor Yellow
    }
    
    if ($DetailedOutput) {
        $args += "--verbosity", "detailed"
    }
    
    Push-Location $projectPath
    try {
        dotnet run @args
    }
    finally {
        Pop-Location
    }
}

# Main execution
switch ($Scenario) {
    "help" {
        Show-Help
    }
    
    "all" {
        Write-Host "Running ALL benchmarks..." -ForegroundColor Yellow
        Write-Host "This will take 60-120 minutes. Press Ctrl+C to cancel.`n" -ForegroundColor Yellow
        Start-Sleep -Seconds 3
        Run-Benchmark "" "All Benchmarks"
    }
    
    "quick" {
        Write-Host "Running QUICK test..." -ForegroundColor Green
        Run-Benchmark "*ImageProcessingBenchmarks*" "Quick Development Test"
    }
    
    "parallel" {
        Write-Host "Running PARALLEL processing benchmarks..." -ForegroundColor Green
        Run-Benchmark "*ImageProcessingBenchmarks*" "Parallel Processing Strategies"
    }
    
    "chunks" {
        Write-Host "Running CHUNK SIZE optimization..." -ForegroundColor Green
        Run-Benchmark "*ChunkSizeBenchmarks*" "Chunk Size Optimization"
    }
    
    "sizes" {
        Write-Host "Running IMAGE SIZE comparison..." -ForegroundColor Green
        Run-Benchmark "*ImageSizeBenchmarks*" "Image Size Impact Analysis"
    }
    
    "stress" {
        Write-Host "Running STRESS TEST..." -ForegroundColor Red
        Write-Host "WARNING: This will take 2-4 hours and use significant disk space!" -ForegroundColor Red
        Write-Host "Press Ctrl+C within 5 seconds to cancel...`n" -ForegroundColor Red
        Start-Sleep -Seconds 5
        Run-Benchmark "*StressTestBenchmark*" "Large-Scale Stress Test"
    }
}

Write-Host "`nBenchmark execution complete!" -ForegroundColor Green
Write-Host "Results saved to: $projectPath\BenchmarkDotNet.Artifacts\results\" -ForegroundColor Green