# start.ps1 — Sobe o ambiente de desenvolvimento completo via Docker
# Uso: .\start.ps1

$ErrorActionPreference = "SilentlyContinue"

Write-Host ""
Write-Host "==> saas_imobiliaria — Ambiente de Desenvolvimento" -ForegroundColor Cyan
Write-Host ""

# ── 1. Docker instalado? ─────────────────────────────────────────────────────
if (-not (Get-Command "docker" -ErrorAction SilentlyContinue)) {
    Write-Host "[ERRO] Docker nao encontrado no PATH." -ForegroundColor Red
    Write-Host "       Instale o Docker Desktop em: https://www.docker.com/products/docker-desktop" -ForegroundColor Yellow
    exit 1
}

# ── 2. Docker rodando? ───────────────────────────────────────────────────────
docker info 2>&1 | Out-Null
if ($LASTEXITCODE -ne 0) {
    Write-Host "[ERRO] Docker nao esta rodando." -ForegroundColor Red
    Write-Host "       Abra o Docker Desktop, aguarde inicializar e rode o script novamente." -ForegroundColor Yellow
    exit 1
}

# ── 3. Garantir DNS no daemon.json (corrige lookup failures no BuildKit) ──────
$daemonPath = "$env:USERPROFILE\.docker\daemon.json"
$needRestart = $false

if (Test-Path $daemonPath) {
    $raw = Get-Content $daemonPath -Raw -ErrorAction SilentlyContinue
    $daemon = try { $raw | ConvertFrom-Json } catch { $null }
    if ($null -eq $daemon -or -not $daemon.PSObject.Properties["dns"] -or $daemon.dns.Count -eq 0) {
        if ($null -eq $daemon) { $daemon = [PSCustomObject]@{} }
        $daemon | Add-Member -Force -MemberType NoteProperty -Name "dns" -Value @("8.8.8.8", "8.8.4.4")
        $daemon | ConvertTo-Json -Depth 10 | Set-Content $daemonPath -Encoding UTF8
        $needRestart = $true
    }
}
else {
    New-Item -ItemType Directory -Path (Split-Path $daemonPath) -Force | Out-Null
    '{"dns":["8.8.8.8","8.8.4.4"]}' | Set-Content $daemonPath -Encoding UTF8
    $needRestart = $true
}

if ($needRestart) {
    Write-Host "[CORRECAO APLICADA] DNS 8.8.8.8 adicionado ao Docker daemon ($daemonPath)." -ForegroundColor Yellow
    Write-Host "  Reinicie o Docker Desktop e rode .\start.ps1 novamente." -ForegroundColor White
    exit 0
}

# ── 4. Criar .env se nao existir ─────────────────────────────────────────────
if (-not (Test-Path ".env")) {
    Copy-Item ".env.example" ".env"
    Write-Host "[INFO] .env criado com valores padrao de desenvolvimento." -ForegroundColor Gray
}

# ── 5. Funções auxiliares de porta ───────────────────────────────────────────
function Get-FreePort {
    param([int]$Preferred)
    $usedPorts = (Get-NetTCPConnection -State Listen -ErrorAction SilentlyContinue).LocalPort
    if ($usedPorts -notcontains $Preferred) { return $Preferred }
    $port = $Preferred + 1
    while ($usedPorts -contains $port) { $port++ }
    return $port
}

function Get-ContainerPort {
    param([string]$Service, [int]$ContainerPort)
    $out = docker-compose port $Service $ContainerPort 2>$null
    if ($out -match ":(\d+)$") { return [int]$Matches[1] }
    return $null
}

function Test-ServiceRunning {
    param([string]$Service)
    $id = (docker-compose ps -q $Service 2>$null) | Where-Object { $_ -ne "" } | Select-Object -First 1
    if (-not $id) { return $false }
    $state = docker inspect --format "{{.State.Running}}" $id 2>$null
    return ($state -eq "true")
}

# ── 6. Verificar quais servicos ja estao rodando ──────────────────────────────
$runningServices = @()
foreach ($svc in @("db", "backend", "frontend")) {
    if (Test-ServiceRunning $svc) { $runningServices += $svc }
}

# Para serviços já rodando: pegar a porta real do container
# Para serviços que vão subir: encontrar uma porta livre no host
if ($runningServices -contains "db") {
    $portDb = Get-ContainerPort "db" 5432
    if (-not $portDb) { $portDb = Get-FreePort 5432 }
} else {
    $portDb = Get-FreePort 5432
}

if ($runningServices -contains "backend") {
    $portBackend = Get-ContainerPort "backend" 5000
    if (-not $portBackend) { $portBackend = Get-FreePort 5000 }
} else {
    $portBackend = Get-FreePort 5000
}

if ($runningServices -contains "frontend") {
    $portFrontend = Get-ContainerPort "frontend" 5173
    if (-not $portFrontend) { $portFrontend = Get-FreePort 5173 }
} else {
    $portFrontend = Get-FreePort 5173
}

if ($portDb -ne 5432)       { Write-Host "[PORTA] Banco    : $portDb (5432 ocupada)" -ForegroundColor Yellow }
if ($portBackend -ne 5000)  { Write-Host "[PORTA] Backend  : $portBackend (5000 ocupada)" -ForegroundColor Yellow }
if ($portFrontend -ne 5173) { Write-Host "[PORTA] Frontend : $portFrontend (5173 ocupada)" -ForegroundColor Yellow }

$toStart = @()
foreach ($svc in @("db", "backend", "frontend")) {
    if ($runningServices -notcontains $svc) {
        $toStart += $svc
    }
    else {
        Write-Host "[OK] $svc ja esta rodando." -ForegroundColor DarkGray
    }
}

# ── 7. Subir apenas os servicos necessarios ───────────────────────────────────
if ($toStart.Count -eq 0) {
    Write-Host ""
    Write-Host "[OK] Todos os servicos ja estao online." -ForegroundColor Green
}
else {
    $env:PORT_DB       = $portDb
    $env:PORT_BACKEND  = $portBackend
    $env:PORT_FRONTEND = $portFrontend

    $composeArgs = @("up", "--build", "-d") + $toStart
    Write-Host ""
    Write-Host "==> Subindo: $($toStart -join ', ')..." -ForegroundColor Green

    try {
        & docker-compose $composeArgs
        if ($LASTEXITCODE -ne 0) { throw "docker-compose retornou $LASTEXITCODE" }
    } catch {
        Write-Host "[ERRO] Falha ao subir servicos: $_" -ForegroundColor Red
    }
}

# ── 8. Aguardar frontend ficar pronto ─────────────────────────────────────────
$frontendUrl = "http://localhost:$portFrontend"
$maxWait = 60
$waited = 0
Write-Host ""
Write-Host "    Aguardando frontend..." -ForegroundColor Gray
while ($waited -lt $maxWait) {
    try {
        $r = Invoke-WebRequest -Uri $frontendUrl -TimeoutSec 2 -UseBasicParsing -ErrorAction Stop
        if ($r.StatusCode -eq 200) { break }
    }
    catch {}
    Start-Sleep -Seconds 2
    $waited += 2
}

# ── 9. Links finais ──────────────────────────────────────────────────────────
Write-Host ""
Write-Host "  Frontend : $frontendUrl" -ForegroundColor Cyan
Write-Host "  Backend  : http://localhost:$portBackend" -ForegroundColor DarkCyan
Write-Host ""