[CmdletBinding()]
param(
    [string]$BuildPreset = "windows-msvc-default",
    [string]$Configuration = "Debug",
    [string]$Executable = "",
    [string]$DebuggerCommand = "",
    [string]$LogDir = "out/logs/debugger",
    [int]$StartupSmokeSeconds = 20,
    [switch]$BreakOnFirstChanceAccessViolation,
    [switch]$LeaveRunning
)

$ErrorActionPreference = "Stop"

function Resolve-CdbPath {
    if ($DebuggerCommand.Length -gt 0) {
        return $DebuggerCommand
    }

    $candidates = @(
        "C:\Program Files (x86)\Windows Kits\10\Debuggers\x64\cdb.exe",
        "C:\Program Files\Windows Kits\10\Debuggers\x64\cdb.exe"
    )

    foreach ($candidate in $candidates) {
        if (Test-Path -LiteralPath $candidate) {
            return $candidate
        }
    }

    throw "Unable to find cdb.exe. Install the Windows Debugging Tools or pass -DebuggerCommand."
}

function Resolve-ExecutablePath {
    param(
        [string]$Requested,
        [string]$Preset,
        [string]$Config
    )

    if ($Requested.Length -gt 0) {
        return (Resolve-Path -LiteralPath $Requested).Path
    }

    $candidate = Join-Path -Path "out/build/$Preset/$Config" -ChildPath "PanoPainter.exe"
    if (Test-Path -LiteralPath $candidate) {
        return (Resolve-Path -LiteralPath $candidate).Path
    }

    throw "Unable to find PanoPainter.exe at '$candidate'. Pass -Executable to override."
}

function New-DebuggerCommandFile {
    param(
        [string]$Path,
        [bool]$BreakOnFirstChanceAccessViolation
    )

    $lines = @()
    if ($BreakOnFirstChanceAccessViolation) {
        $lines += 'sxe -c ".echo ==== FIRST CHANCE AV ====; .ecxr; kb; kv; q" av'
    }
    $lines += "g"
    Set-Content -LiteralPath $Path -Value $lines
}

$cdb = Resolve-CdbPath
$exe = Resolve-ExecutablePath -Requested $Executable -Preset $BuildPreset -Config $Configuration

New-Item -ItemType Directory -Path $LogDir -Force | Out-Null

$timestamp = Get-Date -Format "yyyyMMdd-HHmmss"
$commandFile = Join-Path -Path $LogDir -ChildPath "$timestamp-cdb.cmd"
$logPath = Join-Path -Path $LogDir -ChildPath "$timestamp-cdb.log"

New-DebuggerCommandFile -Path $commandFile -BreakOnFirstChanceAccessViolation:$BreakOnFirstChanceAccessViolation

$process = Start-Process -FilePath $cdb -ArgumentList @(
    "-lines",
    "-logo", $logPath,
    "-cf", $commandFile,
    $exe
) -PassThru

Start-Sleep -Seconds $StartupSmokeSeconds

$app = Get-Process PanoPainter -ErrorAction SilentlyContinue
$debugger = Get-Process cdb -ErrorAction SilentlyContinue | Where-Object { $_.Id -eq $process.Id }

$summary = [ordered]@{
    debugger = $cdb
    executable = $exe
    commandFile = $commandFile
    log = $logPath
    smokeSeconds = $StartupSmokeSeconds
    breakOnFirstChanceAccessViolation = [bool]$BreakOnFirstChanceAccessViolation
    debuggerRunning = [bool]$debugger
    appRunning = [bool]$app
    appResponding = if ($app) { [bool]$app.Responding } else { $false }
    mainWindowTitle = if ($app) { $app.MainWindowTitle } else { "" }
}

$summary | ConvertTo-Json -Compress

if (-not $LeaveRunning) {
    if ($app) {
        Stop-Process -Id $app.Id -Force
    }
    if ($debugger) {
        Stop-Process -Id $debugger.Id -Force
    }
}