import { Injectable } from '@nestjs/common';
import { CommandBus, QueryBus } from '@nestjs/cqrs';
import { WebhookDelivery } from './ports/outgoing-webhooks.repository';
import { WEBHOOK_EVENT_NAMES } from './webhooks/webhook-events';
import {
  CreateWebhookCommand,
  DeleteWebhookCommand,
  GetWebhooksQuery,
  TestWebhookCommand,
  UpdateWebhookCommand,
  WebhookView,
} from './webhooks/webhooks';

/** The project's outgoing webhooks (owners and admins). */
@Injectable()
export class WebhooksService {
  constructor(
    private readonly commandBus: CommandBus,
    private readonly queryBus: QueryBus,
  ) {}

  /** Names other systems can subscribe to (plus `family.*` and `*`). */
  events(): string[] {
    return WEBHOOK_EVENT_NAMES;
  }

  list(viewerId: string, projectId: string): Promise<WebhookView[]> {
    return this.queryBus.execute(new GetWebhooksQuery(viewerId, projectId));
  }

  /** The secret comes back only here. */
  create(
    actorId: string,
    projectId: string,
    url: string,
    events: string[],
  ): Promise<{ id: string; secret: string }> {
    return this.commandBus.execute(
      new CreateWebhookCommand(actorId, projectId, url, events),
    );
  }

  update(
    actorId: string,
    webhookId: string,
    changes: { url?: string; events?: string[]; active?: boolean },
  ): Promise<WebhookView> {
    return this.commandBus.execute(
      new UpdateWebhookCommand(actorId, webhookId, changes),
    );
  }

  delete(actorId: string, webhookId: string): Promise<void> {
    return this.commandBus.execute(
      new DeleteWebhookCommand(actorId, webhookId),
    );
  }

  test(actorId: string, webhookId: string): Promise<WebhookDelivery> {
    return this.commandBus.execute(new TestWebhookCommand(actorId, webhookId));
  }
}