#!/bin/bash

# Setup script for Forgejo domain (code.mnemo-cards.online)
# Usage: ./setup-forgejo-domain.sh

set -e

# Load configuration
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/config.sh"

echo "🚀 Setting up Forgejo domain: code.mnemo-cards.online..."

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

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

print_warning() {
    echo -e "${YELLOW}[WARNING]${NC} $1"
}

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

print_success() {
    echo -e "${GREEN}[SUCCESS]${NC} $1"
}

print_info() {
    echo -e "${BLUE}[INFO]${NC} $1"
}

# Upload nginx config for Forgejo
print_status "Uploading Forgejo nginx configuration..."
scp "$SCRIPT_DIR/forgejo-nginx.conf" "$SERVER_USER@$SERVER_IP:/tmp/forgejo-nginx.conf"

print_status "Setting up Forgejo domain on server..."
# Execute setup commands on server
ssh "$SERVER_USER@$SERVER_IP" << EOF
    set -e

    echo "Setting up Forgejo domain configuration..."

    # Install SSL certificate for code.mnemo-cards.online
    if [ ! -d "/etc/letsencrypt/live/code.mnemo-cards.online" ]; then
        echo "🔐 Getting Let's Encrypt SSL certificate for code.mnemo-cards.online..."

        # Stop nginx temporarily for certificate issuance
        systemctl stop nginx 2>/dev/null || true

        if certbot certonly --standalone -d code.mnemo-cards.online --non-interactive --agree-tos --email admin@memo-cards.online; then
            echo "✅ Let's Encrypt certificate obtained successfully for code.mnemo-cards.online!"
        else
            echo "❌ Failed to get Let's Encrypt certificate. Generating self-signed certificate..."
            if [ ! -f "/etc/ssl/certs/nginx-selfsigned-forgejo.crt" ]; then
                openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
                    -keyout /etc/ssl/private/nginx-selfsigned-forgejo.key \
                    -out /etc/ssl/certs/nginx-selfsigned-forgejo.crt \
                    -subj "/C=RU/ST=Moscow/L=Moscow/O=MnemoCards/OU=IT/CN=code.mnemo-cards.online"
            fi
        fi

        # Start nginx again
        systemctl start nginx 2>/dev/null || true
    else
        echo "✅ Let's Encrypt certificate already exists for code.mnemo-cards.online"
    fi

    # Configure nginx for Forgejo
    echo "Configuring nginx for Forgejo..."

    # Copy Forgejo nginx configuration
    cp /tmp/forgejo-nginx.conf /etc/nginx/sites-available/forgejo

    # Enable Forgejo site
    ln -sf /etc/nginx/sites-available/forgejo /etc/nginx/sites-enabled/forgejo

    # Test nginx configuration
    nginx -t

    # Restart nginx
    systemctl restart nginx
    systemctl enable nginx

    # Setup cron for certificate renewal (if not already configured)
    if ! crontab -l | grep -q "code.mnemo-cards.online"; then
        echo "Setting up cron job for Forgejo certificate renewal..."
        (crontab -l ; echo "0 12 * * * certbot renew --quiet --cert-name code.mnemo-cards.online") | crontab -
    fi

    # Update Forgejo ROOT_URL configuration
    echo "Updating Forgejo ROOT_URL configuration..."

    # Find Forgejo app.ini file
    FORGEJO_CONFIG=""
    for config_path in "/etc/forgejo/app.ini" "/home/forgejo/custom/conf/app.ini" "/var/lib/forgejo/custom/conf/app.ini" "/opt/forgejo/custom/conf/app.ini"; do
        if [ -f "$config_path" ]; then
            FORGEJO_CONFIG="$config_path"
            echo "Found Forgejo config at: $FORGEJO_CONFIG"
            break
        fi
    done

    if [ -n "$FORGEJO_CONFIG" ]; then
        # Backup original config
        cp "$FORGEJO_CONFIG" "${FORGEJO_CONFIG}.backup.$(date +%Y%m%d_%H%M%S)"

        # Update ROOT_URL
        sed -i 's|ROOT_URL.*=.*|ROOT_URL = https://code.mnemo-cards.online|' "$FORGEJO_CONFIG"

        echo "Updated ROOT_URL in Forgejo configuration"

        # Restart Forgejo service
        if systemctl is-active --quiet forgejo 2>/dev/null; then
            echo "Restarting Forgejo service..."
            systemctl restart forgejo
        elif systemctl is-active --quiet gitea 2>/dev/null; then
            echo "Restarting Gitea service..."
            systemctl restart gitea
        else
            echo "Warning: Could not find active Forgejo/Gitea service to restart"
        fi
    else
        echo "Warning: Could not find Forgejo app.ini configuration file"
        echo "Please manually update ROOT_URL to https://code.mnemo-cards.online in your Forgejo config"
    fi

    echo "Forgejo domain setup completed successfully!"
    echo "Forgejo is now available at: https://code.mnemo-cards.online"
    echo "Access by IP address is blocked"
EOF

print_success "Forgejo domain setup completed successfully! 🎉"
print_success "Forgejo is now available at: https://code.mnemo-cards.online"
print_info "Make sure DNS is configured: code.mnemo-cards.online -> $SERVER_IP"