package server

import (
	"encoding/json"
	"local/dndex/storage/entity"
	"local/dndex/storage/operator"
	"net/http"

	"github.com/google/uuid"
	"gopkg.in/mgo.v2/bson"
)

func (rest *REST) dump(w http.ResponseWriter, r *http.Request) {
	switch r.Method {
	case http.MethodGet:
		rest.dumpOut(w, r)
	case http.MethodPost:
		rest.dumpIn(w, r)
	default:
		rest.respNotFound(w)
	}
}

func (rest *REST) dumpOut(w http.ResponseWriter, r *http.Request) {
	scope := rest.scope(r)
	entities, err := rest.g.List(r.Context(), scope.Namespace)
	if err != nil {
		rest.respError(w, err)
	}
	rest.respMap(w, scope.Namespace, entities)
}

func (rest *REST) dumpIn(w http.ResponseWriter, r *http.Request) {
	scope := rest.scope(r)
	var request map[string][]entity.One
	if err := json.NewDecoder(r.Body).Decode(&request); err != nil {
		rest.respBadRequest(w, err.Error())
		return
	}
	for namespace, ones := range request {
		if namespace == scope.Namespace {
			for _, one := range ones {
				if one.ID == "" {
					one.ID = uuid.New().String()
				}
				if err := rest.g.Insert(r.Context(), scope.Namespace, one); err != nil {
					if err := rest.g.Update(r.Context(), scope.Namespace, bson.M{entity.ID: one.ID}, operator.SetMany{Value: one}); err != nil {
						rest.respError(w, err)
						return
					}
				}
			}
		}
	}
	rest.entitiesGetN(w, r)
}