import { Controller, Get, NotFoundException, Param, Res } from "@nestjs/common";
import type { Response } from "express";
import { S3Service } from "../s3/s3.service";

@Controller("media")
export class MediaController {
	constructor(private readonly s3Service: S3Service) {}

	@Get("*key")
	async getFile(@Param("key") key: string, @Res() res: Response) {
		try {
			const stats = (await this.s3Service.getFileInfo(key)) as any;
			const stream = await this.s3Service.getFile(key);

			const contentType =
				stats.metaData?.["content-type"] ||
				stats.metadata?.["content-type"] ||
				"application/octet-stream";

			res.setHeader("Content-Type", contentType);
			res.setHeader("Content-Length", stats.size);
			res.setHeader("Cache-Control", "public, max-age=31536000, immutable");

			stream.pipe(res);
		} catch (_error) {
			throw new NotFoundException("Fichier non trouvé");
		}
	}
}