package server

import (
	"encoding/json"

	"somehole.com/service/oauth2/session"
	"somehole.com/service/router"
)

type CallbackRequestBuilder struct {
	router.UnimplementedRequestBuilder
	values struct {
		router.Values
		State session.State `form:"state"`
		Code  session.Code  `form:"code"`
	}
}

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

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

type CallbackResponse struct {
	router.UnimplementedResponse
	Body struct {
		Message string `json:"message"`
	}
}

func (r *CallbackResponse) BodyBytes() (body []byte) {
	body, _ = json.Marshal(r.Body)
	return
}

type UnimplementedCallbackServer struct{}

func (UnimplementedCallbackServer) mustEmbedUnimplementedCallbackServer() {}

func (UnimplementedCallbackServer) Callback(req *CallbackRequestBuilder) (res *CallbackResponse, errRes router.ErrorResponse) {
	errRes = ErrorNotImplemented
	return
}

type CallbackServer interface {
	mustEmbedUnimplementedCallbackServer()
	Callback(req *CallbackRequestBuilder) (res *CallbackResponse, errRes router.ErrorResponse)
}