package web

import (
	"net/http"
	"strconv"

	"goji.io/pat"

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

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

// PageAdd to add a new page
func pageAdd(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()
	logger := log.GetLog(r, "pageadd")
	var page Page
	returnerr := libapi.JSONDecoder(w, r, logger, &page)
	if returnerr != nil {
		libapi.JSONWrite(w, r, false, returnerr)
		return
	}

	page.WebsiteID = ctx.Value("websiteid").(int64)
	page.URL.WebsiteID = page.WebsiteID
	page.URL.Path = FixPath(page.URL.Path)

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

// PageEdit to edit page
func pageEdit(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()
	logger := log.GetLog(r, "pageedit")
	var page Page
	pageid, err := strconv.ParseInt(pat.Param(r, "pageid"), 10, 64)
	if err != nil {
		logger.Warn("invalid pageid, no integer")
		libapi.JSONWrite(w, r, false, &libapi.ErrorResult{Fields: []string{"pageid"}, Message: "Not a valid pageid"})
		return
	}
	logger = logger.WithField("id", pageid)
	returnerr := libapi.JSONDecoder(w, r, logger, &page)
	if returnerr != nil {
		libapi.JSONWrite(w, r, false, returnerr)
		return
	}

	page.ID = pageid
	page.WebsiteID = ctx.Value("websiteid").(int64)
	page.URL.WebsiteID = page.WebsiteID
	page.URL.Path = FixPath(page.URL.Path)

	tx := dbconnection.Begin()
	if err := tx.Save(page.URL).Error; err != nil {
		logger.Error("database: during save website url: ", err)
		libapi.JSONWrite(w, r, false, &libapi.ErrorResult{Message: "Internal Database Error"})
		return
	}

	page.URLID = page.URL.ID
	page.URL = nil

	if err := tx.Save(page).Error; err != nil {
		logger.Error("database: during save website page: ", err)
		libapi.JSONWrite(w, r, false, &libapi.ErrorResult{Message: "Internal Database Error"})
		return
	}
	tx.Commit()

	logger.Info("done")
	libapi.JSONWrite(w, r, true, nil)
}

// PageDelete to delete page
func pageDelete(w http.ResponseWriter, r *http.Request) {
	logger := log.GetLog(r, "pagedelete")
	pageid, err := strconv.ParseInt(pat.Param(r, "pageid"), 10, 64)
	if err != nil {
		logger.Warn("invalid pageid, no integer")
		libapi.JSONWrite(w, r, false, &libapi.ErrorResult{Fields: []string{"pageid"}, Message: "Not a valid pageid"})
		return
	}
	logger = logger.WithField("id", pageid)
	page := &Page{}
	dbconnection.Where("id = ?", pageid).Preload("URL").First(page)

	if err := dbconnection.Unscoped().Delete(page.URL).Error; err != nil {
		logger.Error("database: during delete website page: ", err)
		libapi.JSONWrite(w, r, false, &libapi.ErrorResult{Message: "Internal Database Error"})
		return
	}
	logger.Info("done")
	libapi.JSONWrite(w, r, true, nil)
}