start-dev.ps1

# Development Startup Script for Cu-Bytes
# This script:
# 1. Sets up/activates Python virtual environment
# 2. Initializes all databases
# 3. Starts Flask backend server
# 4. Installs frontend dependencies and starts Expo

Write-Host "======================================" -ForegroundColor Cyan
Write-Host "Starting Cu-Bytes Development Environment" -ForegroundColor Cyan
Write-Host "======================================" -ForegroundColor Cyan
Write-Host ""

# Get the project root directory
$projectRoot = Split-Path -Parent $MyInvocation.MyCommand.Path
Set-Location $projectRoot

# Load .env file if it exists
$envFile = Join-Path $projectRoot "frontend\cu-bytes\.env"

if (Test-Path $envFile) {
    Write-Host "Loading .env file..." -ForegroundColor Cyan

    Get-Content $envFile | ForEach-Object {
        # Skip comments and empty lines
        if ($_ -match "^\s*#") { return }
        if ($_ -match "^\s*$") { return }

        # Parse KEY=VALUE
        if ($_ -match "^\s*([^=]+)\s*=\s*(.*)\s*$") {
            $key = $matches[1]
            $value = $matches[2]

            # Remove quotes if present
            $value = $value.Trim('"').Trim("'")

            [System.Environment]::SetEnvironmentVariable($key, $value)
        }
    }
}

# Determine whether to use production backend
$USE_PROD_API = $env:EXPO_PUBLIC_USE_PROD_API -eq "true"
Write-Host "USE_PROD_API = $USE_PROD_API" -ForegroundColor Magenta

if (-not $USE_PROD_API) {
    # Step 1: Setup Python Virtual Environment
    Write-Host "[1/6] Setting up Python virtual environment..." -ForegroundColor Yellow
    $venvPath = Join-Path $projectRoot "backenv"

    if (-not (Test-Path $venvPath)) {
        Write-Host "Creating virtual environment..." -ForegroundColor Green
        Set-Location $projectRoot
        python -m venv backenv
        if ($LASTEXITCODE -ne 0) {
            Write-Host "Error: Failed to create virtual environment. Make sure Python is installed." -ForegroundColor Red
            exit 1
        }
    }

    # Activate virtual environment
    Write-Host "Activating virtual environment..." -ForegroundColor Green
    & "$venvPath\Scripts\Activate.ps1"

    # Verify activation by checking Python path
    $pythonPath = (Get-Command python -ErrorAction SilentlyContinue).Source
    if ($pythonPath -and $pythonPath -like "*backenv*") {
        Write-Host "Virtual environment activated successfully." -ForegroundColor Green
    } else {
        Write-Host "Warning: Virtual environment may not be activated properly. Continuing anyway..." -ForegroundColor Yellow
    }

    # Install/upgrade pip and install requirements
    Write-Host "Installing Python dependencies..." -ForegroundColor Green
    python -m pip install --upgrade pip
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Error: Failed to upgrade pip. Make sure Python is installed and accessible." -ForegroundColor Red
        exit 1
    }

    pip install -r requirements.txt
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Error: Failed to install Python requirements." -ForegroundColor Red
        exit 1
    }

    # Step 2: Initialize Databases
    Write-Host ""
    Write-Host "[2/6] Initializing databases..." -ForegroundColor Yellow
    Write-Host "Note: Initializing in correct order (profiles must be created before auth users)" -ForegroundColor Gray
    Write-Host ""

    # Ensure we're in the project root directory
    Set-Location $projectRoot

    # Initialize databases in the correct order
    Write-Host "Initializing user settings database (profiles)..." -ForegroundColor Green
    python -m backend.database.init_user_settings_db
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Warning: Failed to initialize user settings database." -ForegroundColor Yellow
    }

    Write-Host "Initializing auth database..." -ForegroundColor Green
    python -m backend.database.init_auth_db
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Warning: Failed to initialize auth database." -ForegroundColor Yellow
    }

    Write-Host "Initializing food database..." -ForegroundColor Green
    python -m backend.database.init_food_db
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Warning: Failed to initialize food database." -ForegroundColor Yellow
    }

    Write-Host "Initializing logging database..." -ForegroundColor Green
    python -m backend.database.init_logging_db
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Warning: Failed to initialize logging database." -ForegroundColor Yellow
    }

    # Step 3: Start Flask Backend Server
    Write-Host ""
    Write-Host "[3/6] Starting Flask backend server..." -ForegroundColor Yellow
    Write-Host "Flask server will run in background on http://127.0.0.1:5000" -ForegroundColor Green

    # Start Flask in a new PowerShell window
    # Note that lines in @" cannot be intented
    $flaskScript = @"
cd '$projectRoot'
& '$venvPath\Scripts\Activate.ps1'
python -m backend.app
pause
"@

    $flaskScript | Out-File -FilePath "$env:TEMP\start_flask.ps1" -Encoding UTF8
    Start-Process powershell -ArgumentList "-NoExit", "-File", "$env:TEMP\start_flask.ps1"
} else {
    Write-Host ""
    Write-Host "[1-3/6] Skipping backend setup (using Azure backend)" -ForegroundColor Yellow
}

# Wait a moment for Flask to start
Start-Sleep -Seconds 3

# Step 4: Setup Frontend Dependencies
Write-Host ""
Write-Host "[4/6] Installing frontend dependencies..." -ForegroundColor Yellow
$frontendPath = Join-Path $projectRoot "frontend\cu-bytes"
Set-Location $frontendPath

if (-not (Test-Path "node_modules")) {
    Write-Host "Running npm install..." -ForegroundColor Green
    npm install
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Error: Failed to install frontend dependencies." -ForegroundColor Red
        exit 1
    }
} else {
    Write-Host "node_modules already exists. Skipping npm install." -ForegroundColor Green
    Write-Host "Run 'npm install' manually if you need to update dependencies." -ForegroundColor Gray
}

# Step 5: Start Frontend (Expo)
Write-Host ""
Write-Host "[5/6] Starting Expo development server..." -ForegroundColor Yellow
Write-Host "Expo will open in a new window/tab." -ForegroundColor Green

# Start Expo in a new PowerShell window
$expoScript = @"
cd '$frontendPath'
npm start
pause
"@

$expoScript | Out-File -FilePath "$env:TEMP\start_expo.ps1" -Encoding UTF8
Start-Process powershell -ArgumentList "-NoExit", "-File", "$env:TEMP\start_expo.ps1"

# Step 6: Development servers are running
Write-Host ""
Write-Host "[6/6] Development servers started!" -ForegroundColor Green
if ($USE_PROD_API) {
    Write-Host "Backend (Azure): https://cu-bytes-e2cnaff9e2cgg5hk.eastus2-01.azurewebsites.net" -ForegroundColor Cyan
} else {
    Write-Host "Flask backend: http://127.0.0.1:5000" -ForegroundColor Cyan
}
Write-Host "Expo frontend: Check the Expo window for connection details" -ForegroundColor Cyan
Write-Host ""
Write-Host "Setup complete! Your development environment is ready." -ForegroundColor Green

# Step 7: Start Azure Keep-Alive Script
if ($USE_PROD_API) {
    Write-Host ""
    Write-Host "[7/7] Starting keep-alive script..." -ForegroundColor Yellow

    $keepAliveScript = @"
cd '$projectRoot'
powershell -ExecutionPolicy Bypass -File keep-alive.ps1
pause
"@

    $keepAliveScript | Out-File -FilePath "$env:TEMP\start_keep_alive.ps1" -Encoding UTF8
    Start-Process powershell -ArgumentList "-NoExit", "-File", "$env:TEMP\start_keep_alive.ps1"
}