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// SECTION | Types
// ===============================
/**
 * Represents a message exchanged between the user and the assistant.
 * @property role - The role of the message sender, either 'user' or 'assistant'.
 * @property content - The content of the message as a string.
 */
export interface Message {
  role: 'user' | 'assistant'
  content: string
}
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// ===============================
// SECTION | History
// ===============================
/**
 * Abstract class for managing message history.
 * Implementations should provide methods to add, retrieve, and clear messages based on tags.
 */
export abstract class History {
  /**
   * Adds a message to the history under the specified tags.
   * @param tags - An array of tags to categorize the message.
   * @param message - The message to add.
   */
  abstract addMessage(tags: string[], message: Message): Promise<void>

  /**
   * Retrieves all messages associated with the specified tags.
   * @param tags - An array of tags to filter messages.
   * @returns A promise that resolves to an array of messages.
   */
  abstract getMessages(tags: string[]): Promise<Message[]>

  /**
   * Clears all messages associated with the specified tags.
   * @param tags - An array of tags to clear messages for.
   */
  abstract clear(tags: string[]): Promise<void>
}
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