package web

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

	"goji.io/pat"
	"golang.org/x/net/context"

	libapi "dev.sum7.eu/sum7/warehost/lib/api"
)

// PageList give all pages of a website
func pageList(ctx context.Context, w http.ResponseWriter, r *http.Request) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := log.GetLog(r, "pagelist")
	var pages []*Page
	dbconnection.Where("website = ?", ctx.Value("websiteid").(int64)).Preload("Menu").Find(&pages)
	returndata = pages
	logger.Info("done")
	return
}

// PageAdd to add a new page
func pageAdd(ctx context.Context, w http.ResponseWriter, r *http.Request) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := log.GetLog(r, "pageadd")
	var page Page
	err := json.NewDecoder(r.Body).Decode(&page)
	if err != nil {
		logger.Error("fetch request")
		http.Error(w, err.Error(), http.StatusInternalServerError)
		returnerr = &libapi.ErrorResult{
			Message: "Internal Request Error",
		}
		return
	}

	page.WebsiteID = ctx.Value("websiteid").(int64)
	if menu := page.Menu; menu != nil {
		page.MenuID = page.Menu.ID
		page.Menu = nil
	}

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

// PageEdit to edit page
func pageEdit(ctx context.Context, w http.ResponseWriter, r *http.Request) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := log.GetLog(r, "pageedit")
	var page Page
	pageid, err := strconv.ParseInt(pat.Param(ctx, "pageid"), 10, 64)
	if err != nil {
		returnerr = &libapi.ErrorResult{Fields: []string{"pageid"}, Message: "Not a valid pageid"}
		logger.Warn("invalid pageid, no integer")
		return
	}
	logger = logger.WithField("id", pageid)
	err = json.NewDecoder(r.Body).Decode(&page)
	if err != nil {
		logger.Error("fetch request")
		http.Error(w, err.Error(), http.StatusInternalServerError)
		returnerr = &libapi.ErrorResult{
			Message: "Internal Request Error",
		}
		return
	}
	page.WebsiteID = ctx.Value("websiteid").(int64)
	page.ID = pageid
	if menu := page.Menu; menu != nil {
		page.MenuID = page.Menu.ID
		page.Menu = nil
	}

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

// PageDelete to delete page
func pageDelete(ctx context.Context, w http.ResponseWriter, r *http.Request) (returndata interface{}, returnerr *libapi.ErrorResult) {
	returndata = false
	logger := log.GetLog(r, "pagedelete")
	pageid, err := strconv.ParseInt(pat.Param(ctx, "pageid"), 10, 64)
	if err != nil {
		returnerr = &libapi.ErrorResult{Fields: []string{"pageid"}, Message: "Not a valid pageid"}
		logger.Warn("invalid pageid, no integer")
		return
	}
	logger = logger.WithField("id", pageid)
	page := &Page{
		WebsiteID: ctx.Value("websiteid").(int64),
		ID:        pageid,
	}
	if err := dbconnection.Unscoped().Delete(page).Error; err != nil {
		logger.Error("database: during delete website page")
		returnerr = &libapi.ErrorResult{Message: "Internal Database Error"}
		return
	}
	returndata = true
	logger.Info("done")
	return
}