import type { NextFunction, Request, Response } from "express";
import type { ZodTypeAny } from "zod";

export const validate =
  (schema: ZodTypeAny) => (request: Request, response: Response, next: NextFunction) => {
    const result = schema.safeParse({
      body: request.body,
      query: request.query,
      params: request.params,
    });

    if (!result.success) {
      return response.status(400).json({
        message: "Validation error",
        issues: result.error.flatten(),
      });
    }

    request.body = result.data.body;
    request.query = result.data.query;
    request.params = result.data.params;
    return next();
  };