# =============================================================================
# ObsiGate — Script de build et déploiement Docker (Windows PowerShell)
# =============================================================================
#
# Usage :
#   .\build.ps1 [-Prod | -Test] [OPTIONS]
#
# Environnements :
#   -Prod           Production (défaut) — docker-compose.yml
#   -Test           Test Windows (Docker Desktop) — docker-compose.test-win.yml
#
# Options :
#   -BuildOnly      Construit l'image sans démarrer le conteneur
#   -NoCache        Rebuild complet sans cache Docker (défaut)
#   -UseCache       Utilise le cache Docker (plus rapide si peu de changements)
#   -Help           Affiche cette aide
#
# Exemples :
#   .\build.ps1                         # Production
#   .\build.ps1 -Test                   # Test Windows
#   .\build.ps1 -Test -BuildOnly        # Build test sans démarrer
#   .\build.ps1 -Prod -UseCache         # Production avec cache
# =============================================================================

param(
    [switch]$Prod,
    [switch]$Test,
    [switch]$BuildOnly,
    [switch]$NoCache,
    [switch]$UseCache,
    [switch]$Help
)

# ----- Helpers -----
function Write-Info  { Write-Host "[INFO]  $args" -ForegroundColor Cyan }
function Write-Ok    { Write-Host "[OK]    $args" -ForegroundColor Green }
function Write-Warn  { Write-Host "[WARN]  $args" -ForegroundColor Yellow }
function Write-Error { Write-Host "[ERR]   $args" -ForegroundColor Red }

# ----- Help -----
if ($Help) {
    Get-Help $PSCommandPath -Detailed
    exit 0
}

# ----- Select environment -----
$EnvMode = "prod"
$ComposeEnvName = "production"
if ($Test) {
    $EnvMode = "test-win"
    $ComposeEnvName = "test Windows"
}

switch ($EnvMode) {
    "prod"     { $ComposeFile = "docker-compose.yml" }
    "test-win" { $ComposeFile = "docker-compose.test-win.yml" }
}

# ----- Pre-flight checks -----
$dockerVersion = docker --version 2>$null
if (-not $dockerVersion) {
    Write-Error "Docker est introuvable. Installez Docker Desktop avant de continuer."
    exit 1
}
Write-Ok "Docker détecté"

$composeVersion = docker compose version 2>$null
if (-not $composeVersion) {
    Write-Error "Docker Compose est introuvable (plugin docker compose requis)."
    exit 1
}
Write-Ok $composeVersion.Trim()

# ----- Validate compose file -----
if (-not (Test-Path $ComposeFile)) {
    Write-Error "$ComposeFile introuvable dans $(Get-Location)"
    exit 1
}

Write-Host ""
Write-Info "=== ObsiGate — Build & Deploy ($ComposeEnvName) ==="
Write-Info "Fichier compose : $ComposeFile"

# ----- Test mode: create test directories -----
if ($EnvMode -eq "test-win") {
    Write-Info "Création des dossiers de test..."

    $testVault = "C:\dev\git\python\ObsiGate\test_vault"
    $testDir   = "C:\dev\git\python\ObsiGate\test_dir"

    if (-not (Test-Path $testVault)) {
        New-Item -ItemType Directory -Force -Path $testVault | Out-Null
    }
    if (-not (Test-Path $testDir)) {
        New-Item -ItemType Directory -Force -Path $testDir | Out-Null
    }

    $welcomeFile = Join-Path $testVault "Accueil.md"
    if (-not (Test-Path $welcomeFile)) {
        @"
# Bienvenue dans le vault de test

Ce vault est utilisé pour les tests de développement d'ObsiGate.
"@ | Out-File -Encoding UTF8 -FilePath $welcomeFile
        Write-Ok "Note de test créée : test_vault\Accueil.md"
    }
}

# ----- Resolve version from git before Docker build -----
$Version = (git describe --tags --dirty 2>$null) -replace '^v',''
if (-not $Version) { $Version = "0.0.0" }
$Version | Out-File -Encoding ascii -NoNewline -FilePath "backend\VERSION"
# Export so docker compose substitutes ${VERSION} in the build arg
$env:VERSION = $Version
Write-Info "Version : $Version"

# ----- Build the image -----
$BuildArgs = @("-f", $ComposeFile)
if (-not $UseCache) {
    $BuildArgs += "--no-cache"
    Write-Info "Construction de l'image Docker (sans cache)..."
} else {
    Write-Info "Construction de l'image Docker (avec cache)..."
}

docker compose @BuildArgs build
if ($LASTEXITCODE -ne 0) {
    Write-Error "Échec de la construction de l'image Docker."
    exit $LASTEXITCODE
}
Write-Ok "Image construite avec succès"

# ----- Stop if build-only -----
if ($BuildOnly) {
    Write-Host ""
    Write-Info "Mode build-only : conteneur non démarré."
    Write-Info "Pour démarrer manuellement : docker compose -f $ComposeFile up -d"
    exit 0
}

# ----- Start the container -----
Write-Info "Démarrage du conteneur..."
docker compose -f $ComposeFile up -d --remove-orphans
if ($LASTEXITCODE -ne 0) {
    Write-Error "Échec du démarrage du conteneur."
    exit $LASTEXITCODE
}
Write-Ok "Conteneur démarré"

# ----- Show status & tip -----
Write-Host ""
Write-Info "Statut du conteneur :"
docker compose -f $ComposeFile ps

Write-Host ""
Write-Info "Application accessible sur http://localhost:2020"
if ($EnvMode -eq "prod") {
    Write-Info "Login : admin / (mot de passe dans .env)"
} else {
    Write-Info "Login : admin / test123"
}
Write-Host ""

Write-Info "Logs (Ctrl+C pour quitter) :"
docker compose -f $ComposeFile logs --tail=20 -f