import { FormatterConfig } from '../formatter';
import {
  getSettingsSection,
  updateSettingsSection,
  getAppSettings,
  updateAppSettings,
} from '../../db/app-settings';
import type { AppSettingsData } from '../../db/schema';

/**
 * Database-backed settings service with typed configuration
 */
export class SettingsService {
  private static instance: SettingsService;

  private constructor() {}

  static getInstance(): SettingsService {
    if (!SettingsService.instance) {
      SettingsService.instance = new SettingsService();
    }
    return SettingsService.instance;
  }

  /**
   * Get formatter configuration
   */
  async getFormatterConfig(): Promise<FormatterConfig | null> {
    const formatterConfig = await getSettingsSection('formatterConfig');
    return formatterConfig || null;
  }

  /**
   * Set formatter configuration
   */
  async setFormatterConfig(config: FormatterConfig): Promise<void> {
    await updateSettingsSection('formatterConfig', config);
  }

  /**
   * Get all app settings
   */
  async getAllSettings(): Promise<AppSettingsData> {
    return await getAppSettings();
  }

  /**
   * Update multiple settings at once
   */
  async updateSettings(settings: Partial<AppSettingsData>): Promise<AppSettingsData> {
    return await updateAppSettings(settings);
  }

  /**
   * Get UI settings
   */
  async getUISettings(): Promise<AppSettingsData['ui']> {
    return await getSettingsSection('ui');
  }

  /**
   * Update UI settings
   */
  async setUISettings(uiSettings: AppSettingsData['ui']): Promise<void> {
    await updateSettingsSection('ui', uiSettings);
  }

  /**
   * Get transcription settings
   */
  async getTranscriptionSettings(): Promise<AppSettingsData['transcription']> {
    return await getSettingsSection('transcription');
  }

  /**
   * Update transcription settings
   */
  async setTranscriptionSettings(
    transcriptionSettings: AppSettingsData['transcription']
  ): Promise<void> {
    await updateSettingsSection('transcription', transcriptionSettings);
  }

  /**
   * Get recording settings
   */
  async getRecordingSettings(): Promise<AppSettingsData['recording']> {
    return await getSettingsSection('recording');
  }

  /**
   * Update recording settings
   */
  async setRecordingSettings(recordingSettings: AppSettingsData['recording']): Promise<void> {
    await updateSettingsSection('recording', recordingSettings);
  }
}