# Database Backup Script using Docker
# This script reads credentials from chaves.md and runs pg_dump in a Docker container

$chavesPath = ".\chaves.md"

if (-Not (Test-Path $chavesPath)) {
    Write-Error "chaves.md not found!"
    exit 1
}

# Extract credentials (simplifying for reliable parsing)
$content = Get-Content $chavesPath
$password = ($content | Select-String "GLOBAL_DATABASE_URL=postgresql://postgres:(.*)@pikachu").Matches.Groups[1].Value
$dbHost = "pikachu.cnsiese46wxf.sa-east-1.rds.amazonaws.com"
$user = "postgres"

$databases = @("global", "tenant_example")
$timestamp = Get-Date -Format "yyyyMMdd_HHmmss"

foreach ($db in $databases) {
    $outputFile = "backup_${db}_${timestamp}.sql"
    Write-Host "Backing up database: $db to $outputFile..."
    
    # Run pg_dump inside Docker
    docker run --rm `
        -e PGPASSWORD=$password `
        postgres:16-alpine `
        pg_dump -h $dbHost -U $user -d $db > $outputFile

    if ($LASTEXITCODE -eq 0) {
        Write-Host "Backup of $db completed successfully."
    } else {
        Write-Error "Backup of $db failed!"
    }
}