userdata exporter

# Userdata Exporter, By Scalamobile

A Paper 1.21.8 plugin that automatically exports Essentials userdata to MySQL/MariaDB database with configurable intervals.

## Features

- **Automatic Export**: Scans Essentials userdata YAML files and exports to MySQL/MariaDB
- **Configurable Schedule**: Set custom export intervals or disable automatic exports
- **Manual Export**: Use `/userdataexport` command for on-demand exports
- **Debug Mode**: Detailed logging for troubleshooting
- **Database Integration**: Uses HikariCP for efficient database connections
- **Folia Support**: Compatible with Folia servers

## What it does

This plugin reads Essentials userdata files (typically located in `plugins/Essentials/userdata/`) and exports the following data to your MySQL/MariaDB database:

- **UUID**: Player's unique identifier (from filename)
- **Username**: Player's last account name (`last-account-name` field)
- **Money**: Player's balance (`money` field)
- **Updated timestamp**: When the record was last updated

## Installation

1. Download the plugin JAR file
2. Place it in your server's `plugins/` folder
3. Start your server to generate the configuration file
4. Configure your database settings in `plugins/UserdataExporter/config.yml`
5. Restart your server

## Configuration

Edit `plugins/UserdataExporter/config.yml`:

```yaml
# Database configuration
database:
host: "localhost"
port: 3306
database: "essentials"
user: "essentials"
password: ""
maximumPoolSize: 5

# Path to userdata directory (leave empty for default)
userdataPath: ""

# Export interval in seconds (0 to disable)
exportIntervalSeconds: 300

# Table name in database
tableName: "userdata_export"

# Enable debug logging
debug: false
```

## Database Setup

The plugin automatically creates the required table with this schema:

```sql
CREATE TABLE `userdata_export` (
`uuid` VARCHAR(36) NOT NULL,
`username` VARCHAR(64) NOT NULL,
`money` DECIMAL(18,2) NOT NULL DEFAULT 0,
`updated_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`uuid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
```

## Commands

- `/userdataexport` - Manually trigger data export
- Permission: `userdataexport.export` (default: OP)

## Permissions

- `userdataexport.export` - Allows manual export command (default: OP)

## Requirements

- **Server**: Paper 1.21.8+ (Folia supported)
- **Database**: MySQL 5.7+ or MariaDB 10.2+
- **Dependencies**: Essentials plugin (for userdata files)

## How it works

1. **Startup**: Plugin connects to your database and creates the table if it doesn't exist
2. **Initial Export**: Runs an automatic export on startup
3. **Scheduled Exports**: If `exportIntervalSeconds > 0`, runs periodic exports
4. **File Scanning**: Scans all `.yml` and `.yaml` files in the userdata directory
5. **Data Parsing**: Extracts UUID (from filename), username, and money from each file
6. **Database Update**: Uses UPSERT to insert or update records

## Troubleshooting

### Enable Debug Mode
Set `debug: true` in config.yml to see detailed logging:

```
[UserdataExporter] UserdataScanner: Found 5 YAML files
[UserdataExporter] UserdataScanner: Processing file: 12345678-1234-1234-1234-123456789abc.yml
[UserdataExporter] UserdataScanner: Parsed user: 12345678-1234-1234-1234-123456789abc -> PlayerName (money: 1000.0)
```

### Common Issues

1. **No data exported**: Check if userdata directory path is correct
2. **Database connection failed**: Verify database credentials and network access
3. **Permission denied**: Ensure database user has CREATE/INSERT/UPDATE permissions

### Manual Testing

Use `/userdataexport` command to test exports manually and see immediate results.

## Support

- **Issues**: Report bugs and issues on the plugin page
- **Configuration**: Check the debug logs for detailed information
- **Database**: Ensure your MySQL/MariaDB server is accessible and credentials are correct

## Version History

### v1.0.0
- Initial release
- MySQL/MariaDB integration
- Configurable export intervals
- Manual export command
- Debug logging
- Folia support

## License

This plugin is provided as-is for educational and server management purposes.

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**Note**: This plugin requires Essentials to generate userdata files. It will not work without existing Essentials userdata to export.