#!/bin/bash
# Gitea Deployment Script
# Deploys Gitea Git repository server using Docker Compose

set -e

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

# Configuration
GITEA_DOMAIN="${GITEA_DOMAIN:-git.local}"
GITEA_PORT="${GITEA_PORT:-3000}"
SSH_PORT="${SSH_PORT:-2222}"
COMPOSE_FILE="${COMPOSE_FILE:-$(dirname "$0")/../../docker-compose/gitea.yml}"

log_info() {
    echo -e "${GREEN}[INFO]${NC} $1"
}

log_warn() {
    echo -e "${YELLOW}[WARN]${NC} $1"
}

log_error() {
    echo -e "${RED}[ERROR]${NC} $1"
}

check_docker() {
    if ! command -v docker &> /dev/null; then
        log_error "Docker not found. Please install Docker first."
        exit 1
    fi
    
    if ! docker ps &>/dev/null; then
        log_error "Docker daemon not running. Please start Docker."
        exit 1
    fi
    
    if ! command -v docker-compose &> /dev/null && ! docker compose version &>/dev/null; then
        log_error "Docker Compose not found. Please install Docker Compose."
        exit 1
    fi
}

update_compose_file() {
    log_info "Updating Docker Compose configuration..."
    
    # Update domain in compose file if needed
    if [ -f "$COMPOSE_FILE" ]; then
        sed -i "s/git.local/$GITEA_DOMAIN/g" "$COMPOSE_FILE" || true
        log_info "Docker Compose file configured"
    fi
}

deploy_gitea() {
    log_info "Deploying Gitea using Docker Compose..."
    
    # Determine compose command
    if docker compose version &>/dev/null; then
        COMPOSE_CMD="docker compose"
    else
        COMPOSE_CMD="docker-compose"
    fi
    
    # Deploy
    cd "$(dirname "$COMPOSE_FILE")"
    $COMPOSE_CMD -f "$(basename "$COMPOSE_FILE")" up -d
    
    log_info "Waiting for Gitea to be ready..."
    sleep 10
    
    # Wait for service to be healthy
    MAX_WAIT=120
    ELAPSED=0
    
    while [ $ELAPSED -lt $MAX_WAIT ]; do
        if curl -s "http://localhost:$GITEA_PORT" &>/dev/null; then
            log_info "Gitea is ready!"
            return 0
        fi
        log_info "Waiting for Gitea to start... ($ELAPSED/$MAX_WAIT seconds)"
        sleep 5
        ELAPSED=$((ELAPSED + 5))
    done
    
    log_warn "Gitea may not be fully ready yet. Check logs with:"
    log_info "  docker logs gitea"
}

show_info() {
    log_info "Gitea deployment completed!"
    log_info ""
    log_info "Access Gitea at:"
    log_info "  Web UI: http://$GITEA_DOMAIN:$GITEA_PORT"
    log_info "  SSH:    ssh://git@$GITEA_DOMAIN:$SSH_PORT"
    log_info ""
    log_info "Default credentials (change on first login):"
    log_info "  Username: root"
    log_info "  Password: (set during first-time setup)"
    log_info ""
    log_info "Useful commands:"
    log_info "  View logs:    docker logs gitea"
    log_info "  Stop:         docker-compose -f $COMPOSE_FILE down"
    log_info "  Restart:      docker-compose -f $COMPOSE_FILE restart"
}

main() {
    log_info "Starting Gitea deployment..."
    check_docker
    update_compose_file
    deploy_gitea
    show_info
}

main "$@"