package generic

import (
	"encoding/json"
	"io"

	"somehole.com/service/router"
)

type RequestBuilder struct {
	allowedMethods []string
	header         struct {
		router.Header
	}
	values struct {
		router.Values
	}
	Body struct{}
}

func (rb RequestBuilder) RequestBuilder() router.RequestBuilder {
	return &rb
}

func (rb *RequestBuilder) Allowed(method string) (errRes router.ErrorResponse) {
	var ok bool
	for _, m := range rb.allowedMethods {
		if m == method {
			ok = true
		}
	}
	if !ok {
		return ErrorMethodNotAllowed
	}
	return Ok
}

func (rb *RequestBuilder) Header(header router.Header) (errRes router.ErrorResponse) {
	err := rb.header.Header.Parse(header)
	if err != nil {
		return ErrorBadRequest
	}
	return Ok
}

func (rb *RequestBuilder) ReadBody(body io.ReadCloser) (errRes router.ErrorResponse) {
	defer body.Close()
	json.NewDecoder(body).Decode(&rb.Body)
	return Ok
}

func (rb *RequestBuilder) Values(values router.Values) (errRes router.ErrorResponse) {
	err := rb.values.Values.Parse(values)
	if err != nil {
		return ErrorBadRequest
	}
	return Ok
}