import {Controller, Middleware, Post} from '@overnightjs/core';
import type {NextFunction, Request, Response} from 'express';
import multer from 'multer';
import signale from 'signale';
import {requireAuth, requireEmailVerified} from '../middleware/auth.js';
import * as S3Service from '../services/S3Service.js';
import {CatchAsync} from '../utils/asyncHandler.js';

// Configure multer for file uploads (memory storage)
const upload = multer({
  storage: multer.memoryStorage(),
  limits: {
    fileSize: 10 * 1024 * 1024, // 10MB max file size
  },
  fileFilter: (_req, file, cb) => {
    const allowedMimeTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/gif', 'image/webp', 'image/svg+xml'];

    if (allowedMimeTypes.includes(file.mimetype)) {
      cb(null, true);
    } else {
      cb(new Error('Only image files are allowed (JPEG, PNG, GIF, WebP, SVG)'));
    }
  },
});

@Controller('uploads')
export class Uploads {
  /**
   * POST /uploads/image
   * Upload an image file to S3/Minio
   */
  @Post('image')
  @Middleware([requireAuth, requireEmailVerified, upload.single('image')])
  @CatchAsync
  public async uploadImage(req: Request, res: Response, _next: NextFunction) {
    const auth = res.locals.auth;

    try {
      if (!S3Service.isS3Enabled()) {
        return res.status(503).json({
          error: 'File uploads are not enabled. Please configure S3 storage.',
        });
      }

      if (!req.file) {
        return res.status(400).json({
          error: 'No image file provided',
        });
      }

      // Upload file to S3/Minio
      const result = await S3Service.uploadFile({
        file: req.file.buffer,
        filename: req.file.originalname,
        contentType: req.file.mimetype,
        projectId: auth.projectId!,
      });

      return res.status(200).json({
        url: result.url,
        key: result.key,
        filename: req.file.originalname,
        contentType: req.file.mimetype,
        size: req.file.size,
      });
    } catch (error) {
      signale.error('[UPLOADS] Failed to upload image:', error);
      return res.status(500).json({
        error: error instanceof Error ? error.message : 'Failed to upload image',
      });
    }
  }
}