import { createLogger, type ILogger, StorageError } from '@robota-sdk/agent-core';

import type { IHistoryStorage, IConversationHistoryEntry } from '../types';

/**
 * Database storage implementation
 */
export class DatabaseHistoryStorage implements IHistoryStorage {
  private connectionString: string;
  private logger: ILogger;

  constructor(connectionString: string) {
    this.connectionString = connectionString;
    this.logger = createLogger('DatabaseHistoryStorage');
  }

  async save(conversationId: string, _entry: IConversationHistoryEntry): Promise<void> {
    try {
      // Database operations would be implemented here
      this.logger.warn('Database storage not fully implemented yet', {
        conversationId,
        connectionString: this.maskConnectionString(),
      });
    } catch (error) {
      throw new StorageError('Failed to save conversation to database', {
        conversationId,
        error: error instanceof Error ? error.message : String(error),
      });
    }
  }

  async load(conversationId: string): Promise<IConversationHistoryEntry | undefined> {
    try {
      // Database operations would be implemented here
      this.logger.warn('Database storage not fully implemented yet', {
        conversationId,
        connectionString: this.maskConnectionString(),
      });
      return undefined;
    } catch (error) {
      throw new StorageError('Failed to load conversation from database', {
        conversationId,
        error: error instanceof Error ? error.message : String(error),
      });
    }
  }

  async list(): Promise<string[]> {
    try {
      // Database operations would be implemented here
      this.logger.warn('Database storage not fully implemented yet', {
        connectionString: this.maskConnectionString(),
      });
      return [];
    } catch (error) {
      throw new StorageError('Failed to list conversations from database', {
        error: error instanceof Error ? error.message : String(error),
      });
    }
  }

  async delete(conversationId: string): Promise<boolean> {
    try {
      // Database operations would be implemented here
      this.logger.warn('Database storage not fully implemented yet', {
        conversationId,
        connectionString: this.maskConnectionString(),
      });
      return false;
    } catch (error) {
      throw new StorageError('Failed to delete conversation from database', {
        conversationId,
        error: error instanceof Error ? error.message : String(error),
      });
    }
  }

  async clear(): Promise<void> {
    try {
      // Database operations would be implemented here
      this.logger.warn('Database storage not fully implemented yet', {
        connectionString: this.maskConnectionString(),
      });
    } catch (error) {
      throw new StorageError('Failed to clear conversations from database', {
        error: error instanceof Error ? error.message : String(error),
      });
    }
  }

  /**
   * Mask sensitive information in connection string for logging
   */
  private maskConnectionString(): string {
    return this.connectionString.replace(/(:\/\/[^:]+:)[^@]+(@)/, '$1***$2');
  }
}
