package host

import (
	"net/http"
	"strconv"

	"goji.io/pat"

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

func getDatabase(w http.ResponseWriter, r *http.Request) (database Database, returnerr *libapi.ErrorResult) {
	ctx := r.Context()
	login := ctx.Value("login").(*system.Login)
	profil := ctx.Value("profil").(*Profil)
	id, err := strconv.ParseInt(pat.Param(r, "databaseid"), 10, 64)
	if err != nil {
		returnerr = &libapi.ErrorResult{
			Message: "Internal Request Error",
		}
		w.WriteHeader(http.StatusBadRequest)
		return
	}
	database = Database{ID: id}
	db := dbconnection.First(&database)

	if db.Error != nil || db.RecordNotFound() {
		returnerr = &libapi.ErrorResult{Fields: []string{"database"}, Message: "database not found"}
		w.WriteHeader(http.StatusNotFound)
	}

	if !login.Superadmin {
		if profil.ID != database.ProfilID {
			returnerr = &libapi.ErrorResult{Fields: []string{"profil"}, Message: "not allowed to get database"}
			w.WriteHeader(http.StatusForbidden)
		}
	}
	return
}

func databaseList(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()
	login := ctx.Value("login").(*system.Login)
	profil := ctx.Value("profil").(*Profil)
	logger := log.GetLog(r, "databaselist")
	logger = setProfilLog(r, logger)
	var database []*Database
	if login.Superadmin && r.URL.Query().Get("filter") == "all" {
		dbconnection.Preload("Profil").Preload("Profil.Login").Find(&database)
	} else {
		dbconnection.Where("profil = ?", profil.ID).Preload("Profil").Find(&database)
	}
	logger.Info("done")
	libapi.JSONWrite(w, r, database, nil)
}

func databaseAdd(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()
	profil := ctx.Value("profil").(*Profil)
	logger := log.GetLog(r, "databaseadd")
	logger = logger.WithField("pID", profil.ID)

	var databaseRequest Database
	returnerr := libapi.JSONDecoder(w, r, logger, &databaseRequest)
	if returnerr != nil {
		libapi.JSONWrite(w, r, false, returnerr)
		return
	}

	database := &Database{
		ProfilID: profil.ID,
		Password: databaseRequest.Password,
		Comment:  databaseRequest.Comment,
	}

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

func databaseEdit(w http.ResponseWriter, r *http.Request) {
	logger := log.GetLog(r, "databaseedit")
	logger = setProfilLog(r, logger)

	database, returnerr := getDatabase(w, r)
	if returnerr != nil {
		logger.Info(returnerr.Message)
		libapi.JSONWrite(w, r, false, returnerr)
		return
	}
	logger = logger.WithField("dbID", database.ID)

	var databaseRequest Database
	returnerr = libapi.JSONDecoder(w, r, logger, &databaseRequest)
	if returnerr != nil {
		libapi.JSONWrite(w, r, false, returnerr)
	}

	database.Password = databaseRequest.Password
	database.Comment = databaseRequest.Comment

	if err := dbconnection.Save(database).Error; err != nil {
		logger.Error("database: during modify host database: ", err)
		w.WriteHeader(http.StatusInternalServerError)
		libapi.JSONWrite(w, r, false, &libapi.ErrorResult{Message: "Internal Database Error with Database"})
		return
	}
	logger.Info("done")
	libapi.JSONWrite(w, r, true, nil)
}

func databaseDelete(w http.ResponseWriter, r *http.Request) {
	logger := log.GetLog(r, "databasedelete")
	logger = setProfilLog(r, logger)

	database, returnerr := getDatabase(w, r)
	if returnerr != nil {
		logger.Info(returnerr.Message)
		libapi.JSONWrite(w, r, false, returnerr)
		return
	}
	logger = logger.WithField("dbID", database.ID)

	if err := dbconnection.Unscoped().Delete(database).Error; err != nil {
		logger.Error("database: during create host database: ", err)
		w.WriteHeader(http.StatusInternalServerError)
		libapi.JSONWrite(w, r, false, &libapi.ErrorResult{Message: "Internal Database Error with Database"})
		return
	}
	logger.Info("done")
	libapi.JSONWrite(w, r, true, nil)
}