<# 
.SYNOPSIS
    Build script for DashCaddy Windows Desktop App

.DESCRIPTION
    This script:
    1. Builds the WinUI 3 desktop app (Release)
    2. Packages as MSIX
    3. Creates NSIS installer
    4. Outputs: DashCaddy-Setup-1.15.0.exe

.REQUIREMENTS
    - Visual Studio 2022 with Windows App SDK workload
    - NSIS 3.08+
    - .NET 8 SDK
#>

param(
    [string]$Version = "1.15.0",
    [string]$Configuration = "Release",
    [string]$Platform = "x64"
)

$ErrorActionPreference = 'Stop'

$RootDir = Split-Path $PSScriptRoot -Parent
$DesktopDir = Join-Path $RootDir 'desktop'
$InstallerDir = Join-Path $RootDir 'installer\windows'
$OutputDir = Join-Path $RootDir 'artifacts'
$BuildDir = Join-Path $OutputDir 'build'

Write-Host "=== DashCaddy Windows Build v$Version ===" -ForegroundColor Cyan
Write-Host "Configuration: $Configuration"
Write-Host "Platform: $Platform"

# ─── Clean ───
if (Test-Path $OutputDir) {
    Write-Host "Cleaning previous build..."
    Remove-Item -Recurse -Force $OutputDir
}
New-Item -ItemType Directory -Path $BuildDir -Force | Out-Null

# ─── Build .NET App ───
Write-Host "`n[1/5] Building WinUI 3 Desktop App..." -ForegroundColor Green
$csproj = Join-Path $DesktopDir 'DashCaddy.Desktop.csproj'
$publishDir = Join-Path $BuildDir 'app'

dotnet publish $csproj `
    -c $Configuration `
    -r win10-$Platform `
    --self-contained true `
    -p:PublishSingleFile=true `
    -p:PublishTrimmed=true `
    -p:TrimMode=partial `
    -p:EnableMsixTooling=true `
    -p:AppxPackageDir=$OutputDir `
    -o $publishDir

if (-not (Test-Path (Join-Path $publishDir 'DashCaddy.exe'))) {
    throw "Build failed - DashCaddy.exe not found"
}
Write-Host "App built to: $publishDir"

# ─── Copy Assets ───
Write-Host "`n[2/5] Copying assets..." -ForegroundColor Green
$assetsSrc = Join-Path $InstallerDir 'assets'
$assetsDst = Join-Path $BuildDir 'assets'
if (Test-Path $assetsSrc) {
    Copy-Item -Recurse $assetsSrc $assetsDst
} else {
    # Create minimal assets
    New-Item -ItemType Directory -Path $assetsDst -Force | Out-Null
    # Create a simple icon placeholder
    Write-Host "Warning: No assets found, creating placeholders"
}

# ─── Copy Bootstrap ───
Write-Host "`n[3/5] Copying bootstrap script..." -ForegroundColor Green
Copy-Item (Join-Path $InstallerDir 'bootstrap.ps1') (Join-Path $BuildDir 'bootstrap.ps1')

# ─── Create docker-compose.yml for installer ───
Write-Host "`n[4/5] Creating installer docker-compose.yml..." -ForegroundColor Green
$composeContent = @"
version: '3.8'

services:
  dashcaddy-api:
    image: dashcaddy/dashcaddy-api:latest
    container_name: dashcaddy-api
    restart: unless-stopped
    ports:
      - "127.0.0.1:3001:3001"
    volumes:
      - \${DATA_DIR}:/opt/dashcaddy/data
      - \${APPDATA_DIR}/config.yaml:/opt/dashcaddy/config.yaml:ro
      - //./pipe/docker_engine:/var/run/docker.sock:ro
    environment:
      - NODE_ENV=production
      - DATA_DIR=/opt/dashcaddy/data
      - CONFIG_FILE=/opt/dashcaddy/config.yaml
    healthcheck:
      test: ["CMD", "node", "-e", "require('http').get('http://localhost:3001/health', (r) => { process.exit(r.statusCode === 200 ? 0 : 1); }).on('error', () => process.exit(1))"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 15s
    networks:
      - dashcaddy-net

  caddy:
    image: caddy:2.10-alpine
    container_name: dashcaddy-caddy
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - \${DATA_DIR}/caddy/Caddyfile:/etc/caddy/Caddyfile:ro
      - \${DATA_DIR}/caddy/data:/data
      - \${DATA_DIR}/caddy/config:/config
    networks:
      - dashcaddy-net
    depends_on:
      - dashcaddy-api

  coredns:
    image: coredns/coredns:latest
    container_name: dashcaddy-coredns
    restart: unless-stopped
    ports:
      - "53:53/udp"
      - "53:53/tcp"
    volumes:
      - \${DATA_DIR}/coredns/Corefile:/etc/coredns/Corefile:ro
    networks:
      - dashcaddy-net

networks:
  dashcaddy-net:
    driver: bridge
"@

$composeContent | Set-Content -Path (Join-Path $BuildDir 'docker-compose.yml') -Encoding UTF8

# ─── Build NSIS Installer ───
Write-Host "`n[5/5] Building NSIS Installer..." -ForegroundColor Green

$nsisPath = "C:\Program Files (x86)\NSIS\makensis.exe"
if (-not (Test-Path $nsisPath)) {
    $nsisPath = "C:\Program Files\NSIS\makensis.exe"
}
if (-not (Test-Path $nsisPath)) {
    throw "NSIS not found. Install NSIS 3.08+ from https://nsis.sourceforge.io/"
}

$nsiFile = Join-Path $InstallerDir 'dashcaddy.nsi'
$installerOutput = Join-Path $OutputDir "DashCaddy-Setup-$Version.exe"

& $nsisPath `
    "/DVERSION=$Version" `
    "/DOUTPUT=$installerOutput" `
    "/DINSTALLER_DIR=$BuildDir" `
    $nsiFile

if (Test-Path $installerOutput) {
    $size = [math]::Round((Get-Item $installerOutput).Length / 1MB, 1)
    Write-Host "`n✅ Build Complete!" -ForegroundColor Green
    Write-Host "Installer: $installerOutput ($size MB)"
    Write-Host ""
    Write-Host "Next steps:"
    Write-Host "  1. Test installer on clean Windows VM"
    Write-Host "  2. Code sign: signtool sign /fd sha256 /tr http://timestamp.digicert.com $installerOutput"
    Write-Host "  3. Upload to dashcaddy.net/downloads"
} else {
    throw "NSIS build failed - installer not created"
}