#!/usr/bin/env bash
set -eu

# Real Estate Crawler - Development Server
# Starts all backend services + frontend + Caddy HTTPS proxy via Docker Compose.
#
# Usage:
#   ./start.sh           - Start all services (backend + frontend)
#   ./start.sh --build   - Rebuild images before starting
#   ./start.sh --down    - Stop and remove all containers
#   ./start.sh --logs    - Follow logs from all services
#   ./start.sh --help    - Show help

show_help() {
    echo "Real Estate Crawler - Development Server"
    echo ""
    echo "Usage: ./start.sh [OPTIONS]"
    echo ""
    echo "Options:"
    echo "  (default)     Start all services with Docker Compose"
    echo "  --build       Rebuild Docker images before starting"
    echo "  --down        Stop and remove all containers"
    echo "  --logs        Follow logs from all services"
    echo "  --help        Show this help message"
    echo ""
    echo "Services started:"
    echo "  redis         Redis broker + cache          (port 6379)"
    echo "  mysql         MySQL database                (port 3306)"
    echo "  app           FastAPI backend (hot-reload)  (port 5001)"
    echo "  celery        Celery background worker"
    echo "  celery-beat   Celery periodic scheduler"
    echo "  frontend      Vite dev server (hot-reload)  (port 5173)"
    echo "  caddy         HTTPS reverse proxy           (port 443)"
    echo ""
    echo "Environment variables:"
    echo "  DEV_HOST      Hostname for HTTPS access (default: localhost)"
    echo "                Set this to your dev machine's hostname for OIDC auth."
    echo ""
    echo "Examples:"
    echo "  ./start.sh                              # Start everything"
    echo "  ./start.sh --build                      # Rebuild and start"
    echo "  DEV_HOST=devvm.local ./start.sh         # Start with custom hostname"
}

get_compose_cmd() {
    if command -v docker &> /dev/null; then
        echo "docker compose"
    elif command -v podman-compose &> /dev/null; then
        echo "podman-compose"
    else
        echo "❌ Error: Neither docker nor podman-compose found." >&2
        echo "   Install Docker: https://docs.docker.com/get-docker/" >&2
        exit 1
    fi
}

start_docker() {
    local build_flag=""
    if [[ "${1:-}" == "--build" ]]; then
        build_flag="--build"
    fi

    echo "Starting all services with Docker Compose..."
    echo ""

    local compose_cmd
    compose_cmd=$(get_compose_cmd)

    $compose_cmd up $build_flag
}

stop_docker() {
    echo "Stopping all containers..."
    local compose_cmd
    compose_cmd=$(get_compose_cmd)
    $compose_cmd down
}

show_logs() {
    local compose_cmd
    compose_cmd=$(get_compose_cmd)
    $compose_cmd logs -f
}

# Parse arguments
case "${1:-}" in
    --help|-h)
        show_help
        ;;
    --down)
        stop_docker
        ;;
    --logs)
        show_logs
        ;;
    --build)
        start_docker --build
        ;;
    "")
        start_docker
        ;;
    *)
        echo "❌ Unknown option: $1"
        echo ""
        show_help
        exit 1
        ;;
esac