#!/bin/bash

# CMC Sales Development Environment Setup Script
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

echo -e "${BLUE}🚀 Starting CMC Sales Development Environment${NC}"
echo ""

# Function to check if command exists
command_exists() {
    command -v "$1" >/dev/null 2>&1
}

# Check prerequisites
echo -e "${YELLOW}📋 Checking prerequisites...${NC}"

if ! command_exists docker; then
    echo -e "${RED}❌ Docker is not installed${NC}"
    exit 1
fi

if ! command_exists docker-compose; then
    echo -e "${RED}❌ Docker Compose is not installed${NC}"
    exit 1
fi

echo -e "${GREEN}✅ Prerequisites satisfied${NC}"
echo ""

# Check Docker Compose version for watch support
DOCKER_COMPOSE_VERSION=$(docker compose version --short 2>/dev/null || echo "unknown")
SUPPORTS_WATCH=false

if [[ "$DOCKER_COMPOSE_VERSION" != "unknown" ]]; then
    # Check if version is 2.22.0 or higher (when watch was introduced)
    if docker compose version 2>/dev/null | grep -q "Docker Compose version v2\.\([2-9][2-9]\|[3-9][0-9]\)"; then
        SUPPORTS_WATCH=true
    fi
fi

echo ""
echo -e "${YELLOW}🏗️  Building and starting services...${NC}"

# Ask user about watch mode
if [[ "$SUPPORTS_WATCH" == "true" ]]; then
    echo -e "${BLUE}💡 Docker Compose watch mode is available for automatic rebuilds on file changes.${NC}"
    read -p "Would you like to enable watch mode? (Y/n): " enable_watch
    if [[ ! $enable_watch =~ ^[Nn]$ ]]; then
        USE_WATCH=true
    else
        USE_WATCH=false
    fi
else
    echo -e "${YELLOW}⚠️  Docker Compose watch mode not available (requires v2.22.0+)${NC}"
    USE_WATCH=false
fi

if [[ "$USE_WATCH" == "true" ]]; then
    echo -e "${GREEN}🔄 Starting services with watch mode enabled...${NC}"
    echo -e "${BLUE}   📁 Watching for changes in: go/, php/app/webroot/css/, php/app/webroot/js/${NC}"
    echo -e "${BLUE}   🔄 Services will automatically rebuild on file changes${NC}"
    echo -e "${BLUE}   ⏹️  Press Ctrl+C to stop all services${NC}"
    echo ""
    
    # Start with watch mode (this will run in foreground)
    docker compose up --build --watch
else
    # Traditional mode
    docker compose up --build -d

    echo ""
    echo -e "${YELLOW}⏳ Waiting for services to be ready...${NC}"
    sleep 10

    # Check service health
    echo -e "${YELLOW}🏥 Checking service health...${NC}"

    # Check database
    if docker compose exec -T db mariadb-admin ping -h localhost -u cmc -p'xVRQI&cA?7AU=hqJ!%au' --silent; then
        echo -e "${GREEN}✅ Database is ready${NC}"
    else
        echo -e "${RED}❌ Database is not ready${NC}"
    fi

    # Check Go app
    if curl -s http://localhost:8080/api/v1/health > /dev/null; then
        echo -e "${GREEN}✅ Go application is ready${NC}"
    else
        echo -e "${YELLOW}⚠️  Go application might still be starting...${NC}"
    fi

    echo ""
    echo -e "${GREEN}🎉 Development environment is running!${NC}"
    echo ""
    echo -e "${BLUE}📱 Access your applications:${NC}"
    echo -e "   🏛️  CakePHP (Legacy):  ${GREEN}http://cmclocal${NC} (add to /etc/hosts: 127.0.0.1 cmclocal)"
    echo -e "   🚀 Go (Modern):      ${GREEN}http://localhost:8080${NC}"
    echo -e "   🗄️  Database:        ${GREEN}localhost:3306${NC} (user: cmc, pass: xVRQI&cA?7AU=hqJ!%au)"
    echo ""
    echo -e "${BLUE}🔧 Useful commands:${NC}"
    echo -e "   View logs:           ${YELLOW}docker compose logs -f${NC}"
    echo -e "   Stop services:       ${YELLOW}docker compose down${NC}"
    echo -e "   Restart Go app:      ${YELLOW}docker compose restart cmc-go${NC}"
    echo -e "   Restart PHP app:     ${YELLOW}docker compose restart cmc-php${NC}"
    echo -e "   Enable watch mode:   ${YELLOW}docker compose up --watch${NC}"
    echo ""
    echo -e "${BLUE}📚 Documentation:${NC}"
    echo -e "   Go app README:       ${YELLOW}go/README.md${NC}"
    echo -e "   Project guide:       ${YELLOW}CLAUDE.md${NC}"
    echo ""

    # Optional: Follow logs
    read -p "Would you like to follow the logs? (y/N): " follow_logs
    if [[ $follow_logs =~ ^[Yy]$ ]]; then
        echo -e "${YELLOW}📝 Following logs (Ctrl+C to exit)...${NC}"
        docker compose logs -f
    fi
fi