# Jalankan backend ESP32 + atur variabel environment untuk koneksi MySQL.
# Jika .env belum ada, skrip ini akan minta input sekali saja dan menyimpan konfigurasi.

$root = Split-Path -Parent $MyInvocation.MyCommand.Path
Set-Location $root

function Load-EnvFile {
    param([string]$path)
    $data = @{}
    foreach ($line in Get-Content $path) {
        $trim = $line.Trim()
        if ([string]::IsNullOrWhiteSpace($trim) -or $trim.StartsWith('#')) { continue }
        $parts = $trim.Split('=', 2)
        if ($parts.Count -eq 2) {
            $data[$parts[0].Trim()] = $parts[1].Trim()
        }
    }
    return $data
}

function Save-EnvFile {
    param([string]$path, [hashtable]$data)
    $lines = @()
    foreach ($key in $data.Keys) {
        $lines += "$key=$($data[$key])"
    }
    $lines | Set-Content -Path $path -Encoding UTF8
}

$envPath = Join-Path $root ".env"
if (Test-Path $envPath) {
    $envData = Load-EnvFile $envPath
} else {
    Write-Host ".env tidak ditemukan. Masukkan konfigurasi MySQL untuk setup sekali jalan."
    $dbUser = Read-Host "DB_USER (MySQL username)"
    $dbPasswordSecure = Read-Host "DB_PASSWORD (MySQL password)" -AsSecureString
    $dbPassword = [Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR($dbPasswordSecure))
    $dbHost = Read-Host "DB_HOST [127.0.0.1]"
    if ([string]::IsNullOrWhiteSpace($dbHost)) { $dbHost = '127.0.0.1' }
    $dbPort = Read-Host "DB_PORT [3306]"
    if ([string]::IsNullOrWhiteSpace($dbPort)) { $dbPort = '3306' }
    $dbName = Read-Host "DB_NAME [face_db]"
    if ([string]::IsNullOrWhiteSpace($dbName)) { $dbName = 'face_db' }

    $envData = @{
        DB_USER = $dbUser
        DB_PASSWORD = $dbPassword
        DB_HOST = $dbHost
        DB_PORT = $dbPort
        DB_NAME = $dbName
        HOST = '0.0.0.0'
        PORT = '8000'
        FACE_MODEL = 'Facenet'
    }
    Save-EnvFile -path $envPath -data $envData
    Write-Host ".env dibuat di $envPath"
}

foreach ($key in $envData.Keys) {
    Set-Item -Path "env:$key" -Value $envData[$key]
}

$venvActivate = Join-Path $root ".venv\Scripts\Activate.ps1"
if (Test-Path $venvActivate) {
    Write-Host "Mengaktifkan venv .venv..."
    . $venvActivate
} else {
    Write-Host "Virtual environment .venv tidak ditemukan. Pastikan sudah di-setup jika diperlukan."
}

Write-Host "Environment variables sudah diset. Menjalankan esp32_http_server.py..."
py .\esp32_http_server.py