#!/bin/bash
set -e

# Default values
PROJECT_ID=${PROJECT_ID:-""}
REGION=${REGION:-"us-central1"}
SERVICE_CONFIG=${SERVICE_CONFIG:-"deployment/cloud-run/service.yaml"}
IMAGE_NAME=${IMAGE_NAME:-"sereact-api"}
IMAGE_TAG=${IMAGE_TAG:-"latest"}
REGISTRY=${REGISTRY:-"gcr.io"}

# Validate required parameters
if [ -z "$PROJECT_ID" ]; then
    echo "Error: PROJECT_ID environment variable is required"
    echo "Usage: PROJECT_ID=your-project-id ./scripts/deploy-to-cloud-run.sh"
    exit 1
fi

# Full image reference
FULL_IMAGE_NAME="${REGISTRY}/${PROJECT_ID}/${IMAGE_NAME}:${IMAGE_TAG}"

# Check if service config exists
if [ ! -f "$SERVICE_CONFIG" ]; then
    echo "Error: Service configuration file not found at $SERVICE_CONFIG"
    exit 1
fi

# Build the image if BUILD=true
if [ "${BUILD:-false}" = "true" ]; then
    echo "Building Docker image: ${FULL_IMAGE_NAME}"
    docker build -t "${FULL_IMAGE_NAME}" -f Dockerfile .
    echo "Build completed successfully"
fi

# Push the image if PUSH=true
if [ "${PUSH:-false}" = "true" ]; then
    echo "Pushing image to registry: ${FULL_IMAGE_NAME}"
    docker push "${FULL_IMAGE_NAME}"
    echo "Image pushed successfully"
fi

# Update the image in the service configuration
echo "Updating image reference in service configuration..."
TMP_CONFIG=$(mktemp)
sed "s|image: .*|image: ${FULL_IMAGE_NAME}|g" "$SERVICE_CONFIG" > "$TMP_CONFIG"

echo "Deploying to Cloud Run using configuration..."
gcloud run services replace "$TMP_CONFIG" \
    --project="$PROJECT_ID" \
    --region="$REGION" \
    --platform=managed

rm "$TMP_CONFIG"

echo "Deployment completed successfully"
echo "Service URL: $(gcloud run services describe sereact --region=${REGION} --project=${PROJECT_ID} --format='value(status.url)')"
echo "To view logs: gcloud logging read 'resource.type=cloud_run_revision AND resource.labels.service_name=sereact' --project=$PROJECT_ID --limit=10"