import {Request} from '../http/lifecycle/Request'
import {Validator} from './Validator'
import {ZodError} from 'zod'
import {HTTPStatus, left, right} from '../util'
import {json} from '../http/response/JSONResponseFactory'

export function validateMiddleware<T>(validator: Validator<T>) {
    // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
    return (request: Request) => {
        try {
            const data = validator.parse(request.parsedInput)
            return right(data)
        } catch (e) {
            if ( e instanceof ZodError ) {
                // FIXME render this better
                return left(json(e.formErrors).status(HTTPStatus.BAD_REQUEST))
            }

            throw e
        }
    }
}