#!/usr/bin/env bash

set -euo pipefail

# Farben für Output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# Script Directory
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"

# Load environment variables from .env
if [ -f "${SCRIPT_DIR}/.env" ]; then
    echo -e "${GREEN}Loading environment variables from .env...${NC}"
    set -a
    source "${SCRIPT_DIR}/.env"
    set +a
else
    echo -e "${RED}Error: .env file not found in ${SCRIPT_DIR}${NC}"
    exit 1
fi

# Variables
IMAGE_NAME="${REGISTRY_URL}/${NAMESPACE}/${REPO_NAME}"
IMAGE_FULL="${IMAGE_NAME}:${IMAGE_TAG}"

echo -e "${GREEN}========================================${NC}"
echo -e "${GREEN}Building SKAMP Application${NC}"
echo -e "${GREEN}========================================${NC}"
echo -e "Project Root: ${PROJECT_ROOT}"
echo -e "Image: ${IMAGE_FULL}"
echo -e "${GREEN}========================================${NC}"

# Change to project root
cd "${PROJECT_ROOT}"

# Step 1: Clean previous builds (optional)
echo -e "\n${YELLOW}Step 1: Cleaning previous builds...${NC}"
if command -v mvn &> /dev/null; then
    mvn clean
else
    echo -e "${YELLOW}Maven not found locally, will use Docker build stage${NC}"
fi

# Step 2: Build Docker image
echo -e "\n${YELLOW}Step 2: Building Docker image...${NC}"
docker build \
    -f "${SCRIPT_DIR}/Dockerfile" \
    -t "${IMAGE_FULL}" \
    -t "${IMAGE_NAME}:latest" \
    "${PROJECT_ROOT}"

# Check if build was successful
if [ $? -eq 0 ]; then
    echo -e "\n${GREEN}========================================${NC}"
    echo -e "${GREEN}Build successful!${NC}"
    echo -e "${GREEN}========================================${NC}"
    echo -e "Image: ${IMAGE_FULL}"
    echo -e "Also tagged as: ${IMAGE_NAME}:latest"

    # Show image details
    echo -e "\n${YELLOW}Image details:${NC}"
    docker images "${IMAGE_NAME}" | head -n 2

    # Optional: Push to registry
    read -p "Do you want to push the image to the registry? (y/n) " -n 1 -r
    echo
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        echo -e "\n${YELLOW}Logging in to registry...${NC}"
        echo "${CI_GITEA_TOKEN}" | docker login "${REGISTRY_URL}" -u "${CI_GITEA_USER}" --password-stdin
        
        if [ $? -eq 0 ]; then
            echo -e "${GREEN}Login successful!${NC}"
            echo -e "\n${YELLOW}Pushing image to registry...${NC}"
            docker push "${IMAGE_FULL}"
            docker push "${IMAGE_NAME}:latest"
            echo -e "${GREEN}Push successful!${NC}"
        else
            echo -e "${RED}Login failed! Cannot push images.${NC}"
            exit 1
        fi
    fi
else
    echo -e "\n${RED}Build failed!${NC}"
    exit 1
fi

echo -e "\n${GREEN}Done!${NC}"