#!/bin/bash

# Simple Database Migration Script
set -e

# Load database credentials from .env file
DB_USER="tilbudgivern_service"
DB_PASS="REDACTED_PASSWORD"
DB_NAME="tilbudgivern"

echo "🔄 Starting database migration from s.alw.dk..."

# Test SSH connection
echo "Testing SSH connection..."
ssh -p 55555 alex@s.alw.dk "echo 'SSH OK'"

# Create backup directory
mkdir -p /tmp/db_backup
cd /tmp/db_backup

echo "📥 Exporting database from remote server..."

# Export database without triggers/views/routines that cause permission issues
ssh -p 55555 alex@s.alw.dk "sudo mysqldump tilbudgivern --single-transaction --skip-triggers --skip-routines --skip-add-locks --no-create-info --no-data --skip-comments" > tilbudgivern_structure.sql
ssh -p 55555 alex@s.alw.dk "sudo mysqldump tilbudgivern --single-transaction --no-create-info --skip-triggers --skip-routines --skip-add-locks --ignore-table=tilbudgivern.bygma_current_prices --ignore-table=tilbudgivern.v_bygma_current_prices --ignore-table=tilbudgivern.v_bygma_import_stats --ignore-table=tilbudgivern.v_bygma_price_changes --ignore-table=tilbudgivern.v_enhanced_quotes --ignore-table=tilbudgivern.package_overview" > tilbudgivern_data.sql

# Check if export was successful
if [ -s tilbudgivern_data.sql ]; then
    echo "✅ Database exported successfully ($(du -h tilbudgivern_data.sql | cut -f1))"
else
    echo "❌ Database export failed"
    exit 1
fi

echo "📤 Importing to local database..."

# First, ensure we have the enhanced schema
echo "Setting up enhanced schema..."
mysql -u "$DB_USER" -p"$DB_PASS" "$DB_NAME" < ../setup_enhanced_features.sql 2>/dev/null || echo "Schema setup completed"

# Import data
mysql -u "$DB_USER" -p"$DB_PASS" "$DB_NAME" < tilbudgivern_data.sql

if [ $? -eq 0 ]; then
    echo "✅ Database migration completed successfully!"
    
    # Show table count
    echo "📊 Database statistics:"
    mysql -u "$DB_USER" -p"$DB_PASS" -e "USE $DB_NAME; SELECT COUNT(*) as 'Total Tables' FROM information_schema.tables WHERE table_schema = '$DB_NAME';"
    mysql -u "$DB_USER" -p"$DB_PASS" -e "USE $DB_NAME; SELECT 'customer_projects' as table_name, COUNT(*) as records FROM customer_projects UNION ALL SELECT 'project_quotes', COUNT(*) FROM project_quotes;" 2>/dev/null || echo "Some tables might not exist"
else
    echo "❌ Database import failed"
    exit 1
fi

echo "🎉 Migration complete!"