import { Provide } from "@midwayjs/core";
import { IMidwayKoaContext, IWebMiddleware, NextFunction } from "@midwayjs/koa";
import { logger } from "@certd/basic";
import { Result, TextException } from "@certd/lib-server";

@Provide()
export class GlobalExceptionMiddleware implements IWebMiddleware {
  resolve() {
    return async (ctx: IMidwayKoaContext, next: NextFunction) => {
      const { url } = ctx;
      const startTime = Date.now();
      logger.info("请求开始:", url);
      try {
        await next();
        logger.info("请求完成:", url, Date.now() - startTime + "ms");
      } catch (err) {
        if (err instanceof TextException) {
          delete err.stack;
        }
        logger.error("请求异常:", url, Date.now() - startTime + "ms", err);
        ctx.status = 200;
        if (err.code == null || typeof err.code !== "number") {
          err.code = 1;
        }
        ctx.body = Result.error(err.code, err.message, err.data);
      }
    };
  }
}