using CitizenFX.Core;
using CitizenFX.Core.Native;
using CitizenFX.Core.UI;
using NativeUI;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace VehicleControls {
    public class VehicleControls : BaseScript {
        private static string ERROR = "~r~Errore: ";
        private static string ERROR_NOCAR = ERROR + "Non sei su un veicolo oppure non hai un veicolo salvato!";

        private Vehicle savedVehicle;

        private void AddEngineItem(UIMenu menu) {
            var newItem = new UIMenuItem("Gestisci Motore");
            menu.AddItem(newItem);

            menu.OnItemSelect += (sender, item, index) => {
                if (item != newItem) {
                    return;
                }

                Vehicle car = LocalPlayer.Character.CurrentVehicle;

                if (car == null && savedVehicle == null) {
                    Screen.ShowNotification(ERROR_NOCAR);
                    return;
                }

                if (car != null) {
                    ToggleEngine(car);
                }
                else if (savedVehicle != null) {
                    ToggleEngine(savedVehicle);
                }
            };
        }

        private void ToggleEngine(Vehicle car) {
            if (car.IsEngineRunning) {
                Screen.ShowNotification("Il motore è ~r~spento~w~.");
                car.IsDriveable = false;
                car.IsEngineRunning = false;
            }
            else {
                Screen.ShowNotification("Il motore è ~g~acceso~w~.");
                car.IsDriveable = true;
                car.IsEngineRunning = true;
            }
        }

        private void AddOpenDoorItem(UIMenu menu) {
            List<dynamic> doors = new List<dynamic> {
                "Avanti Sinistra",
                "Avanti Destra",
                "Dietro Sinistra",
                "Dietro Destra",
                "Cofano",
                "Bagagliaio"
            };
            var newItem = new UIMenuListItem("Gestisci Portiera", doors, 0);
            menu.AddItem(newItem);

            menu.OnItemSelect += (sender, item, index) => {
                if (item != newItem) {
                    return;
                }

                int itemIndex = newItem.Index;
                string doorName = newItem.IndexToItem(itemIndex);
                Vehicle car = LocalPlayer.Character.CurrentVehicle;

                if (car == null && savedVehicle == null) {
                    Screen.ShowNotification(ERROR_NOCAR);
                    return;
                }

                if (car != null) {
                    ToggleDoor(car, itemIndex, doorName);
                }
                else {
                    ToggleDoor(savedVehicle, itemIndex, doorName);
                }
            };
        }

        private void ToggleDoor(Vehicle car, int index, string doorName) {
            bool doorBroken = Function.Call<bool>(Hash.IS_VEHICLE_DOOR_DAMAGED, car, index);
            if (doorBroken) {
                Screen.ShowNotification(ERROR + "Portiera rotta!");
                return;
            }

            float doorAngle = Function.Call<float>(Hash.GET_VEHICLE_DOOR_ANGLE_RATIO, car, index);
            if (doorAngle == 0) // Door chiusa
            {
                Screen.ShowNotification("La portiera: " + doorName + " è ~g~aperta~w~.");
                Function.Call(Hash.SET_VEHICLE_DOOR_OPEN, car, index, false, false);
            }
            else {
                Screen.ShowNotification("La portiera: " + doorName + " è ~r~chiusa~w~.");
                Function.Call(Hash.SET_VEHICLE_DOOR_SHUT, car, index, false);
            }
        }

        private void AddSaveVehicleItem(UIMenu menu) {
            var newItem = new UIMenuItem("Salva Veicolo");
            menu.AddItem(newItem);

            menu.OnItemSelect += (sender, item, index) => {
                if (item != newItem) {
                    return;
                }

                Vehicle car = LocalPlayer.Character.CurrentVehicle;

                if (car == null) {
                    Screen.ShowNotification(ERROR_NOCAR);
                    return;
                }

                SaveVehicle(car);
                Screen.ShowNotification("Veicolo Salvato.");
            };
        }

        private void AddCredits(UIMenu menu) {
            var newItem = new UIMenuItem("Crediti");
            menu.AddItem(newItem);

            menu.OnItemSelect += (sender, item, index) => {
                if (item != newItem) {
                    return;
                }

                Screen.ShowNotification("Resource sviluppata da: ~o~Zio_Pagnotta");
            };

        }

        private void SaveVehicle(Vehicle car) {
            if (savedVehicle != null) {
                foreach (Blip vehBlip in savedVehicle.AttachedBlips) {
                    vehBlip.Alpha = 0;
                }
            }

            Blip blip = car.AttachBlip();
            blip.Sprite = BlipSprite.PersonalVehicleCar;

            savedVehicle = car;
        }

        public VehicleControls() {
            MenuPool menuPool = new MenuPool();

            UIMenu menu = new UIMenu("TheFinalRoad", "Gestione Veicolo");
            menuPool.Add(menu);

            AddEngineItem(menu);
            AddOpenDoorItem(menu);
            AddSaveVehicleItem(menu);
            AddCredits(menu);

            menu.RefreshIndex();

            Tick += new Func<Task>(async delegate {
                await Task.FromResult(0);

                menuPool.ProcessMenus();
                if (Game.IsControlJustReleased(1, Control.InteractionMenu)) {
                    menu.Visible = !menu.Visible;
                }
            });
        }
    }
}