/**
 * Structured logging system for TimeSafari
 * 
 * Provides consistent logging across the application with:
 * - Timestamp tracking
 * - Log levels (debug, info, warn, error)
 * - Structured data support
 * - Component tagging
 * 
 * @author Matthew Raymer <matthew.raymer@anomalistdesign.com>
 * @version 1.0.0
 * @since 2025-06-01
 */

// Log levels
export enum LogLevel {
  DEBUG = 'DEBUG',
  INFO = 'INFO',
  WARN = 'WARN',
  ERROR = 'ERROR'
}

// Log entry interface
interface LogEntry {
  timestamp: string;
  level: LogLevel;
  component: string;
  message: string;
  data?: unknown;
}

// Format log entry
const formatLogEntry = (entry: LogEntry): string => {
  const { timestamp, level, component, message, data } = entry;
  const dataStr = data ? ` ${JSON.stringify(data, null, 2)}` : '';
  return `[${timestamp}] [${level}] [${component}] ${message}${dataStr}`;
};

// Create logger for a specific component
export const createLogger = (component: string) => {
  const log = (level: LogLevel, message: string, data?: unknown) => {
    const entry: LogEntry = {
      timestamp: new Date().toISOString(),
      level,
      component,
      message,
      data
    };

    const formatted = formatLogEntry(entry);
    
    switch (level) {
      case LogLevel.DEBUG:
        console.debug(formatted);
        break;
      case LogLevel.INFO:
        console.info(formatted);
        break;
      case LogLevel.WARN:
        console.warn(formatted);
        break;
      case LogLevel.ERROR:
        console.error(formatted);
        break;
    }
  };

  return {
    debug: (message: string, data?: unknown) => log(LogLevel.DEBUG, message, data),
    info: (message: string, data?: unknown) => log(LogLevel.INFO, message, data),
    warn: (message: string, data?: unknown) => log(LogLevel.WARN, message, data),
    error: (message: string, data?: unknown) => log(LogLevel.ERROR, message, data)
  };
};

// Create default logger for SQLite operations
export const logger = createLogger('SQLite');