[CmdletBinding()]
param(
    [string]$DataPath = '',
    [string]$IconPath = '',
    [string]$PatchSource = '',
    [string]$AuthHost = '',
    [string]$EnvFile = '',
    [string]$PackagePath = '',
    [string]$BinaryPath = '',
    [string]$VcRuntimePath = '',
    [string]$Prefix = 'World of Warcraft 1.12.1',
    [string]$ManifestKey = 'manifest-1.12.1.json',
    [switch]$Publish,
    [switch]$DryRun,
    [switch]$SkipClientBuild
)

$ErrorActionPreference = 'Stop'
$repoRoot = Split-Path $PSScriptRoot -Parent
if (-not $EnvFile) {
    $EnvFile = Join-Path (Split-Path $repoRoot -Parent) 'MoonWellClientSources\.env'
}
if (-not $PackagePath) {
    $PackagePath = Join-Path $repoRoot ('dist\moonwell-' + (Get-Date -Format 'yyyyMMdd-HHmmss'))
}
if (-not $BinaryPath) { $BinaryPath = Join-Path $repoRoot 'target\release\MoonWell.exe' }
if ($BinaryPath.EndsWith('.exe', [StringComparison]::OrdinalIgnoreCase)) {
    if (-not $VcRuntimePath) {
        $vswherePath = Join-Path ${env:ProgramFiles(x86)} 'Microsoft Visual Studio\Installer\vswhere.exe'
        $vsInstall = (& $vswherePath -latest -products '*' -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath).Trim()
        if ($LASTEXITCODE -ne 0 -or -not $vsInstall) { throw 'Visual Studio C++ runtime was not found; pass -VcRuntimePath.' }
        $redistVersion = Get-ChildItem -LiteralPath (Join-Path $vsInstall 'VC\Redist\MSVC') -Directory |
            Where-Object { $_.Name -match '^\d+\.\d+\.\d+$' } |
            Sort-Object { [version]$_.Name } -Descending | Select-Object -First 1
        $VcRuntimePath = Join-Path $redistVersion.FullName 'x64\Microsoft.VC143.CRT'
    }
    if (-not (Test-Path -LiteralPath (Join-Path $VcRuntimePath 'vcruntime140.dll') -PathType Leaf)) {
        throw 'The x64 Visual C++ redistributable vcruntime140.dll was not found.'
    }
}
if (-not $DataPath -or -not $AuthHost) {
    throw 'Pass -DataPath pointing to WoW 1.12.1 Data and -AuthHost host[:port]. WOW_HOME from the old .env is deliberately not used.'
}
if ($Publish -and $DryRun) { throw 'Choose -Publish or -DryRun.' }
if (Test-Path -LiteralPath $PackagePath) { throw 'PackagePath already exists; choose a new staging directory.' }
if (($Publish -or $DryRun) -and -not (Test-Path -LiteralPath $EnvFile -PathType Leaf)) {
    throw 'Deployment .env was not found.'
}

Push-Location $repoRoot
try {
    if (-not $SkipClientBuild) {
        $embeddedIcon = Join-Path $repoRoot 'crates\moonwell\assets\moonwell.ico'
        if ($IconPath) {
            $sourceIcon = (Resolve-Path -LiteralPath $IconPath).Path
            New-Item -ItemType Directory -Path (Split-Path $embeddedIcon -Parent) -Force | Out-Null
            if ($sourceIcon -ne $embeddedIcon) { Copy-Item -LiteralPath $sourceIcon -Destination $embeddedIcon }
        }
        if (-not (Test-Path -LiteralPath $embeddedIcon -PathType Leaf)) {
            throw 'Provide the MoonWell icon with -IconPath or place it in crates/moonwell/assets/moonwell.ico.'
        }
        & cargo build -p moonwell --release --no-default-features --locked
        if ($LASTEXITCODE -ne 0) { throw 'MoonWell player build failed.' }
    }

    & cargo build -p moonwell-deploy --release --locked
    if ($LASTEXITCODE -ne 0) { throw 'Rust deployment tool build failed.' }
    $toolPath = Join-Path $repoRoot 'target\release\moonwell-deploy.exe'
    $stageArguments = @('stage', '--binary', $BinaryPath, '--data', $DataPath,
        '--output', $PackagePath, '--auth-host', $AuthHost)
    if ($PatchSource) { $stageArguments += @('--source', $PatchSource) }
    & $toolPath @stageArguments
    if ($LASTEXITCODE -ne 0) { throw 'Package staging failed.' }
    if ($BinaryPath.EndsWith('.exe', [StringComparison]::OrdinalIgnoreCase)) {
        Copy-Item -LiteralPath (Join-Path $VcRuntimePath 'vcruntime140.dll') -Destination (Join-Path $PackagePath 'vcruntime140.dll')
    }

    # The local inventory lives outside the package, so it cannot list itself.
    $inventoryPath = $PackagePath + '.manifest.json'
    & $toolPath manifest --dir $PackagePath --output $inventoryPath
    if ($LASTEXITCODE -ne 0) { throw 'Manifest generation failed.' }

    if ($Publish -or $DryRun) {
        $publishArguments = @('publish', '--dir', $PackagePath, '--env-file', $EnvFile,
            '--prefix', $Prefix, '--manifest-key', $ManifestKey)
        if ($DryRun) { $publishArguments += '--dry-run' }
        & $toolPath @publishArguments
        if ($LASTEXITCODE -ne 0) { throw 'S3 publication failed.' }
    }
    Write-Host "Package: $PackagePath"
    Write-Host "Local manifest: $inventoryPath"
} finally {
    Pop-Location
}