import { WorkflowBase, WorkflowContext, WorkflowResult } from './workflow-base';
import { WorkflowType } from '@prisma/client';
import { SendgridClient } from '../integrations/email/sendgrid-client';
import { log } from '../monitoring/logger';
import { integrations } from '../utils/config';

export class EmailAutomationWorkflow extends WorkflowBase {
  protected type: WorkflowType = 'EMAIL_AUTOMATION';
  private sendgrid: SendgridClient;

  constructor(db: any, alerts: any) {
    super(db, alerts);
    this.sendgrid = new SendgridClient();
  }

  protected async execute(context: WorkflowContext): Promise<WorkflowResult> {
    const business = await this.getBusiness(context.businessId);

    log.info('Starting email automation setup', { businessId: context.businessId });

    try {
      if (!integrations.hasSendgrid()) {
        log.warn('Sendgrid not configured - skipping email automation', {
          businessId: context.businessId,
        });
        return {
          success: true,
          data: { configured: false, reason: 'Sendgrid not configured' },
        };
      }

      // Create email templates
      const templates = await this.createEmailTemplates(business);

      log.info('Email templates created', {
        businessId: context.businessId,
        templateCount: templates.length,
      });

      // Update business
      await this.db.business.update({
        where: { id: context.businessId },
        data: { emailAutomation: true },
      });

      return {
        success: true,
        data: {
          configured: true,
          templates: templates.length,
        },
      };
    } catch (error) {
      log.error('Email automation workflow failed', error, {
        businessId: context.businessId,
      });
      return {
        success: false,
        error: error instanceof Error ? error.message : String(error),
      };
    }
  }

  private async createEmailTemplates(business: any): Promise<any[]> {
    const templates = [
      {
        name: 'Welcome Email',
        subject: `Welcome to ${business.name}!`,
        content: `Thank you for joining ${business.name}. We're excited to have you!`,
      },
      {
        name: 'Onboarding Sequence',
        subject: `Get started with ${business.name}`,
        content: `Here's how to make the most of ${business.name}...`,
      },
    ];

    // In production, would create actual templates via Sendgrid API
    return templates;
  }
}