res_levis_backend/internal/pkg/controller/trackerzones_controller.go

package controller

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

	"github.com/AFASystems/presence/internal/pkg/model"
	"github.com/gorilla/mux"
	"gorm.io/gorm"
)

// controller/tracker_controller.go
func TrackerAddController(db *gorm.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var tz model.TrackerZones
		if err := json.NewDecoder(r.Body).Decode(&tz); err != nil {
			http.Error(w, err.Error(), 400)
			return
		}
		db.Create(&tz)
		w.Write([]byte("ok"))
	}
}

func TrackerListController(db *gorm.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var list []model.TrackerZones
		db.Find(&list)
		json.NewEncoder(w).Encode(list)
	}
}

func TrackerUpdateController(db *gorm.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var tz model.TrackerZones

		if err := json.NewDecoder(r.Body).Decode(&tz); err != nil {
			http.Error(w, "Invalid JSON", 400)
			return
		}

		id := tz.ID

		if err := db.First(&model.TrackerZones{}, "id = ?", id).Error; err != nil {
			http.Error(w, err.Error(), 400)
			return
		}

		if err := db.Save(&tz).Error; err != nil {
			http.Error(w, err.Error(), 500)
			return
		}

		w.Write([]byte("ok"))
	}
}

func TrackerDeleteController(db *gorm.DB) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		id := mux.Vars(r)["id"]
		if res := db.Delete(&model.TrackerZones{}, "id = ?", id); res.RowsAffected == 0 {
			http.Error(w, "no tracker zone with such ID found", 400)
			return
		}

		w.Write([]byte("ok"))
	}
}