#!/bin/bash

# Wiki.js Backup Script
# Creates backups of your wiki database and uploaded assets

set -e

BACKUP_DIR="backups"
DATE=$(date +%Y%m%d_%H%M%S)

echo "🔄 Starting Wiki.js backup..."

# Create backup directory if it doesn't exist
mkdir -p "$BACKUP_DIR"

# Check if services are running
if ! docker-compose ps | grep -q "Up"; then
    echo "❌ Wiki.js services are not running. Please start them first with: docker-compose up -d"
    exit 1
fi

echo "💾 Backing up database..."
# Backup PostgreSQL database
docker-compose exec -T db pg_dump -U wikijs wiki > "$BACKUP_DIR/wiki_db_$DATE.sql"

echo "📁 Backing up assets and data..."
# Backup uploaded assets and wiki data
tar -czf "$BACKUP_DIR/wiki_assets_$DATE.tar.gz" -C data assets wiki 2>/dev/null || true

# Backup configuration files
echo "⚙️ Backing up configuration..."
tar -czf "$BACKUP_DIR/wiki_config_$DATE.tar.gz" docker-compose.yml .env README.md 2>/dev/null || true

echo "✅ Backup completed successfully!"
echo "📂 Backup files created:"
echo "   - Database: $BACKUP_DIR/wiki_db_$DATE.sql"
echo "   - Assets: $BACKUP_DIR/wiki_assets_$DATE.tar.gz"
echo "   - Config: $BACKUP_DIR/wiki_config_$DATE.tar.gz"

# Clean up old backups (keep last 7 days)
echo "🧹 Cleaning up old backups (keeping last 7 days)..."
find "$BACKUP_DIR" -name "wiki_*" -type f -mtime +7 -delete 2>/dev/null || true

echo "🎉 Backup process complete!"