#!/bin/bash
# Docker build script for Hockey Results Application

set -e

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

# Configuration
IMAGE_NAME="hockey-results"
IMAGE_TAG="latest"
FULL_IMAGE_NAME="${IMAGE_NAME}:${IMAGE_TAG}"

echo -e "${BLUE}🏒 Building Hockey Results Application Docker Image${NC}"
echo -e "${BLUE}================================================${NC}"

# Function to display usage
usage() {
    echo "Usage: $0 [OPTIONS]"
    echo ""
    echo "Options:"
    echo "  -t, --tag TAG        Set image tag (default: latest)"
    echo "  -n, --name NAME      Set image name (default: hockey-results)"
    echo "  --no-cache          Build without cache"
    echo "  --push              Push image to registry after build"
    echo "  -h, --help          Show this help message"
    echo ""
    echo "Examples:"
    echo "  $0                           # Build with default settings"
    echo "  $0 -t v1.0.0                 # Build with specific tag"
    echo "  $0 --no-cache                # Build without cache"
    echo "  $0 -t v1.0.0 --push          # Build and push to registry"
}

# Parse command line arguments
PUSH_IMAGE=false
NO_CACHE=""
REGISTRY=""

while [[ $# -gt 0 ]]; do
    case $1 in
        -t|--tag)
            IMAGE_TAG="$2"
            FULL_IMAGE_NAME="${IMAGE_NAME}:${IMAGE_TAG}"
            shift 2
            ;;
        -n|--name)
            IMAGE_NAME="$2"
            FULL_IMAGE_NAME="${IMAGE_NAME}:${IMAGE_TAG}"
            shift 2
            ;;
        --no-cache)
            NO_CACHE="--no-cache"
            shift
            ;;
        --push)
            PUSH_IMAGE=true
            shift
            ;;
        --registry)
            REGISTRY="$2"
            shift 2
            ;;
        -h|--help)
            usage
            exit 0
            ;;
        *)
            echo -e "${RED}Unknown option: $1${NC}"
            usage
            exit 1
            ;;
    esac
done

echo -e "${YELLOW}📋 Build Configuration:${NC}"
echo -e "  Image Name: ${GREEN}${FULL_IMAGE_NAME}${NC}"
echo -e "  No Cache: ${GREEN}${NO_CACHE:-false}${NC}"
echo -e "  Push Image: ${GREEN}${PUSH_IMAGE}${NC}"
echo ""

# Check if Docker is running
if ! docker info > /dev/null 2>&1; then
    echo -e "${RED}❌ Docker is not running. Please start Docker and try again.${NC}"
    exit 1
fi

# Build the image
echo -e "${BLUE}🔨 Building Docker image...${NC}"
if docker build $NO_CACHE -t "$FULL_IMAGE_NAME" .; then
    echo -e "${GREEN}✅ Docker image built successfully: ${FULL_IMAGE_NAME}${NC}"
else
    echo -e "${RED}❌ Docker build failed${NC}"
    exit 1
fi

# Show image information
echo -e "${BLUE}📊 Image Information:${NC}"
docker images "$FULL_IMAGE_NAME"

# Push image if requested
if [ "$PUSH_IMAGE" = true ]; then
    echo -e "${BLUE}📤 Pushing image to registry...${NC}"
    
    if [ -n "$REGISTRY" ]; then
        FULL_REGISTRY_NAME="${REGISTRY}/${FULL_IMAGE_NAME}"
        docker tag "$FULL_IMAGE_NAME" "$FULL_REGISTRY_NAME"
        docker push "$FULL_REGISTRY_NAME"
        echo -e "${GREEN}✅ Image pushed to registry: ${FULL_REGISTRY_NAME}${NC}"
    else
        docker push "$FULL_IMAGE_NAME"
        echo -e "${GREEN}✅ Image pushed to registry: ${FULL_IMAGE_NAME}${NC}"
    fi
fi

echo -e "${GREEN}🎉 Build process completed successfully!${NC}"

# Show next steps
echo -e "${YELLOW}📝 Next Steps:${NC}"
echo -e "  To run the container: ${BLUE}docker run -p 5000:5000 ${FULL_IMAGE_NAME}${NC}"
echo -e "  To run with docker-compose: ${BLUE}docker-compose up${NC}"
echo -e "  To run with PostgreSQL: ${BLUE}docker-compose --profile postgres up${NC}"
echo -e "  To run with MariaDB: ${BLUE}docker-compose --profile mariadb up${NC}"