#!/bin/bash
#
# Dataflow Setup Script
# Quick setup for development
#

set -e

echo "🚀 Dataflow Setup"
echo "================="
echo ""

# Check if .env exists
if [ ! -f .env ]; then
    echo "📝 Creating .env from template..."
    cp .env.example .env
    echo "⚠️  Please edit .env with your database credentials"
    echo ""
    read -p "Press enter to continue after editing .env..."
fi

# Load .env
export $(cat .env | grep -v '^#' | xargs)

# Install dependencies
echo "📦 Installing Node.js dependencies..."
npm install
echo ""

# Test database connection
echo "🔍 Testing database connection..."
if psql -U "$DB_USER" -h "$DB_HOST" -p "$DB_PORT" -d postgres -c '\q' 2>/dev/null; then
    echo "✓ PostgreSQL connection successful"
else
    echo "✗ Cannot connect to PostgreSQL"
    echo "  Please check your database credentials in .env"
    exit 1
fi

# Create database if it doesn't exist
echo ""
echo "🗄️  Checking database..."
if psql -U "$DB_USER" -h "$DB_HOST" -p "$DB_PORT" -lqt | cut -d \| -f 1 | grep -qw "$DB_NAME"; then
    echo "✓ Database '$DB_NAME' exists"
else
    echo "Creating database '$DB_NAME'..."
    psql -U "$DB_USER" -h "$DB_HOST" -p "$DB_PORT" -d postgres -c "CREATE DATABASE $DB_NAME;"
    echo "✓ Database created"
fi

# Deploy schema
echo ""
echo "📋 Deploying database schema..."
psql -U "$DB_USER" -h "$DB_HOST" -p "$DB_PORT" -d "$DB_NAME" -f database/schema.sql
echo "✓ Schema deployed"

echo ""
echo "⚙️  Deploying database functions..."
psql -U "$DB_USER" -h "$DB_HOST" -p "$DB_PORT" -d "$DB_NAME" -f database/functions.sql
echo "✓ Functions deployed"

echo ""
echo "✅ Setup complete!"
echo ""
echo "Next steps:"
echo "  1. Start the server: npm start"
echo "  2. Test the API: curl http://localhost:$API_PORT/health"
echo "  3. Follow the guide: examples/GETTING_STARTED.md"
echo ""