/**
 * Providers Repository
 * Handles CRUD operations for cloud providers
 */

import { BaseRepository } from './base';
import { Provider, ProviderInput, RepositoryError, ErrorCodes } from '../types';

export class ProvidersRepository extends BaseRepository<Provider> {
  protected tableName = 'providers';
  protected allowedColumns = [
    'name',
    'display_name',
    'api_base_url',
    'last_sync_at',
    'sync_status',
    'sync_error',
  ];

  /**
   * Find provider by name
   */
  async findByName(name: string): Promise<Provider | null> {
    try {
      const result = await this.db
        .prepare('SELECT * FROM providers WHERE name = ?')
        .bind(name)
        .first<Provider>();

      return result || null;
    } catch (error) {
      this.logger.error('findByName failed', {
        name,
        error: error instanceof Error ? error.message : 'Unknown error'
      });
      throw new RepositoryError(
        `Failed to find provider by name: ${name}`,
        ErrorCodes.DATABASE_ERROR,
        error
      );
    }
  }

  /**
   * Update sync status for a provider
   */
  async updateSyncStatus(
    name: string,
    status: 'pending' | 'syncing' | 'success' | 'error',
    error?: string
  ): Promise<Provider> {
    try {
      const now = new Date().toISOString().replace('T', ' ').slice(0, 19);

      const result = await this.db
        .prepare(
          `UPDATE providers
           SET sync_status = ?,
               sync_error = ?,
               last_sync_at = ?
           WHERE name = ?
           RETURNING *`
        )
        .bind(status, error || null, now, name)
        .first<Provider>();

      if (!result) {
        throw new RepositoryError(
          `Provider not found: ${name}`,
          ErrorCodes.NOT_FOUND
        );
      }

      return result;
    } catch (error) {
      this.logger.error('updateSyncStatus failed', {
        name,
        status,
        error: error instanceof Error ? error.message : 'Unknown error'
      });

      if (error instanceof RepositoryError) {
        throw error;
      }

      throw new RepositoryError(
        `Failed to update sync status for provider: ${name}`,
        ErrorCodes.DATABASE_ERROR,
        error
      );
    }
  }

  /**
   * Get all providers with specific sync status
   */
  async findByStatus(status: Provider['sync_status']): Promise<Provider[]> {
    try {
      const result = await this.db
        .prepare('SELECT * FROM providers WHERE sync_status = ?')
        .bind(status)
        .all<Provider>();

      return result.results;
    } catch (error) {
      this.logger.error('findByStatus failed', {
        status,
        error: error instanceof Error ? error.message : 'Unknown error'
      });
      throw new RepositoryError(
        `Failed to find providers by status: ${status}`,
        ErrorCodes.DATABASE_ERROR,
        error
      );
    }
  }

  /**
   * Create or update a provider
   */
  async upsert(data: ProviderInput): Promise<Provider> {
    try {
      const existing = await this.findByName(data.name);

      if (existing) {
        return await this.update(existing.id, data);
      }

      return await this.create(data);
    } catch (error) {
      this.logger.error('upsert failed', {
        name: data.name,
        error: error instanceof Error ? error.message : 'Unknown error'
      });
      throw new RepositoryError(
        `Failed to upsert provider: ${data.name}`,
        ErrorCodes.DATABASE_ERROR,
        error
      );
    }
  }
}