#!/bin/bash
# Backup script for Delphi Database System

set -e

BACKUP_DIR="/app/backups"
DB_FILE="/app/data/delphi_database.db"
TIMESTAMP=$(date +"%Y%m%d_%H%M%S")
BACKUP_FILE="${BACKUP_DIR}/delphi_backup_${TIMESTAMP}.db"

echo "🔄 Starting database backup..."

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

# Check if database exists
if [ ! -f "$DB_FILE" ]; then
    echo "❌ Database file not found: $DB_FILE"
    exit 1
fi

# Create backup
echo "📦 Creating backup: $BACKUP_FILE"
cp "$DB_FILE" "$BACKUP_FILE"

# Verify backup
if [ -f "$BACKUP_FILE" ]; then
    BACKUP_SIZE=$(stat -f%z "$BACKUP_FILE" 2>/dev/null || stat -c%s "$BACKUP_FILE" 2>/dev/null)
    echo "✅ Backup created successfully"
    echo "   File: $BACKUP_FILE"
    echo "   Size: $BACKUP_SIZE bytes"
else
    echo "❌ Backup failed"
    exit 1
fi

# Clean up old backups (keep last 10)
echo "🧹 Cleaning up old backups..."
find "$BACKUP_DIR" -name "delphi_backup_*.db" -type f | sort -r | tail -n +11 | xargs -r rm -f

REMAINING_BACKUPS=$(find "$BACKUP_DIR" -name "delphi_backup_*.db" -type f | wc -l)
echo "📊 Remaining backups: $REMAINING_BACKUPS"

echo "🎉 Backup process completed!"