package web

import (
	"encoding/json"
	"net/http"
	"strconv"

	"github.com/astaxie/session"
	"github.com/julienschmidt/httprouter"

	libapi "dev.sum7.de/sum7/warehost/lib/api"
	libsystem "dev.sum7.de/sum7/warehost/system"
)

// MenuTree to give the tree of a menu back
func (api *API) MenuTree(w http.ResponseWriter, r *http.Request, _ httprouter.Params, sess session.Session, login *libsystem.Login, websiteid int64) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := api.log.GetLog(r, "menutree")
	var menus []*Menu
	api.dbconnection.Where("website = ?", websiteid).Preload("Menu").Order("position").Find(&menus)
	returndata = BuildMenuTree(menus)
	logger.Info("done")
	return
}

// MenuAdd to add a new menu entry
func (api *API) MenuAdd(w http.ResponseWriter, r *http.Request, ps httprouter.Params, sess session.Session, login *libsystem.Login, websiteid int64) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := api.log.GetLog(r, "menuadd")
	var menuEntry Menu
	err := json.NewDecoder(r.Body).Decode(&menuEntry)
	if err != nil {
		logger.Error("fetch request")
		http.Error(w, err.Error(), http.StatusInternalServerError)
		returnerr = &libapi.ErrorResult{
			Message: "Internal Request Error",
		}
		return
	}

	menuEntry.WebsiteID = websiteid

	if err := api.dbconnection.Create(&menuEntry).Error; err != nil {
		logger.Error("database: during create menu")
		returnerr = &libapi.ErrorResult{Message: "Internal Database Error"}
		return
	}
	returndata = true
	logger.Info("done")
	return
}

// MenuEdit to delete domain
func (api *API) MenuEdit(w http.ResponseWriter, r *http.Request, ps httprouter.Params, sess session.Session, login *libsystem.Login, websiteid int64) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := api.log.GetLog(r, "menuedit")
	var menuEntry Menu
	menuid, err := strconv.ParseInt(ps.ByName("menuid"), 10, 64)
	if err != nil {
		returnerr = &libapi.ErrorResult{Fields: []string{"menuid"}, Message: "Not a valid menuid"}
		logger.Warn("invalid loginid, no integer")
		return
	}
	logger = logger.WithField("id", menuid)
	err = json.NewDecoder(r.Body).Decode(&menuEntry)
	if err != nil {
		logger.Error("fetch request")
		http.Error(w, err.Error(), http.StatusInternalServerError)
		returnerr = &libapi.ErrorResult{
			Message: "Internal Request Error",
		}
		return
	}
	menuEntry.WebsiteID = websiteid
	menuEntry.ID = menuid

	if err := api.dbconnection.Save(menuEntry).Error; err != nil {
		logger.Error("database: during delete website menu entry")
		returnerr = &libapi.ErrorResult{Message: "Internal Database Error"}
		return
	}
	returndata = true
	logger.Info("done")
	return
}

// MenuDelete to delete domain
func (api *API) MenuDelete(w http.ResponseWriter, r *http.Request, ps httprouter.Params, sess session.Session, login *libsystem.Login, websiteid int64) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := api.log.GetLog(r, "menudelete")
	menuid, err := strconv.ParseInt(ps.ByName("menuid"), 10, 64)
	if err != nil {
		returnerr = &libapi.ErrorResult{Fields: []string{"menuid"}, Message: "Not a valid menuid"}
		logger.Warn("invalid loginid, no integer")
		return
	}
	logger = logger.WithField("id", menuid)
	menu := &Menu{
		WebsiteID: websiteid,
		ID:        menuid,
	}
	if err := api.dbconnection.Unscoped().Delete(menu).Error; err != nil {
		logger.Error("database: during delete website menu entry")
		returnerr = &libapi.ErrorResult{Message: "Internal Database Error"}
		return
	}
	returndata = true
	logger.Info("done")
	return
}