#!/bin/sh
set -e

# =============================================================================
# Docker Entrypoint Script
# =============================================================================
# Handles runtime setup before starting the application:
# - Waits for database and cache dependencies
# - Decodes SF_PRIVATE_KEY_BASE64 to file if provided
# - Runs Prisma migrations if RUN_MIGRATIONS=true
# =============================================================================

echo "🚀 Starting Customer Portal Backend..."

# Handle Salesforce private key from base64 environment variable
if [ -n "$SF_PRIVATE_KEY_BASE64" ]; then
    echo "📝 Decoding Salesforce private key..."
    mkdir -p /app/secrets
    echo "$SF_PRIVATE_KEY_BASE64" | base64 -d > /app/secrets/sf-private.key
    chmod 600 /app/secrets/sf-private.key
    export SF_PRIVATE_KEY_PATH=/app/secrets/sf-private.key
    echo "✅ Salesforce private key configured"
fi

# Wait for database if DATABASE_URL is set
# Extract host:port from postgresql://user:pass@host:port/db
if [ -n "$DATABASE_URL" ]; then
    DB_HOST=$(echo "$DATABASE_URL" | sed -E 's|.*@([^:/]+):([0-9]+)/.*|\1|')
    DB_PORT=$(echo "$DATABASE_URL" | sed -E 's|.*@([^:/]+):([0-9]+)/.*|\2|')
    if [ -n "$DB_HOST" ] && [ -n "$DB_PORT" ]; then
        echo "⏳ Waiting for database ($DB_HOST:$DB_PORT)..."
        until nc -z "$DB_HOST" "$DB_PORT" 2>/dev/null; do
            sleep 2
        done
        echo "✅ Database is ready"
    fi
fi

# Wait for Redis if REDIS_URL is set
# Extract host:port from redis://host:port/db
if [ -n "$REDIS_URL" ]; then
    REDIS_HOST=$(echo "$REDIS_URL" | sed -E 's|redis://([^:/]+):([0-9]+).*|\1|')
    REDIS_PORT=$(echo "$REDIS_URL" | sed -E 's|redis://([^:/]+):([0-9]+).*|\2|')
    if [ -n "$REDIS_HOST" ] && [ -n "$REDIS_PORT" ]; then
        echo "⏳ Waiting for cache ($REDIS_HOST:$REDIS_PORT)..."
        until nc -z "$REDIS_HOST" "$REDIS_PORT" 2>/dev/null; do
            sleep 2
        done
        echo "✅ Cache is ready"
    fi
fi

# Run database migrations if enabled
if [ "$RUN_MIGRATIONS" = "true" ] && [ -n "$DATABASE_URL" ]; then
    echo "🗄️  Running database migrations..."
    npx prisma@6.14.0 migrate deploy --schema=/app/apps/bff/prisma/schema.prisma
    echo "✅ Migrations complete"
fi

echo "🌐 Starting server on port ${PORT:-4000}..."

# Execute the main command (node dist/main.js)
exec "$@"