// package store_ram -- хранилище данных сервиса
package store_ram

import (
	"fmt"
	"log"
	"sync"

	"adt/pkg/alias"
	"adt/pkg/entities/hotel_room_busy"
	"adt/pkg/types"
)

// StoreRam -- хранилище данных сервиса
type StoreRam struct {
	tableOrder    map[alias.OrderId]types.IHotelRoomOrder // таблца заказов бронирования
	blockOrder    sync.RWMutex                            // блокировка для работы с таблицей заказов бронирования
	tableRoomBusy map[alias.BusyId]types.IHotelRoomBusy   // таблца состояний бронирования номеров
	blockRoomBusy sync.RWMutex                            // блокировка для работы с таблицей состояний бронирования номеров
}

// NewStoreRam -- возвращает новый хранилище данных сервиса
func NewStoreRam() *StoreRam {
	log.Println("NewStoreRam()")
	return &StoreRam{
		tableOrder: map[alias.OrderId]types.IHotelRoomOrder{},
		tableRoomBusy: map[alias.BusyId]types.IHotelRoomBusy{
			"reddison.lux.2024-01-01": &hotel_room_busy.HotelRoomBusy{
				Id_:      "reddison.lux.2024-01-01",
				HotelId_: "reddison",
				RoomId_:  "lux",
				Date_:    "2024-01-01",
				IsBusy_:  true,
			},
			"reddison.lux.2024-01-02": &hotel_room_busy.HotelRoomBusy{
				Id_:      "reddison.lux.2024-01-02",
				HotelId_: "reddison",
				RoomId_:  "lux",
				Date_:    "2024-01-02",
				IsBusy_:  true,
			},
			"reddison.lux.2024-01-03": &hotel_room_busy.HotelRoomBusy{
				Id_:      "reddison.lux.2024-01-03",
				HotelId_: "reddison",
				RoomId_:  "lux",
				Date_:    "2024-01-03",
				IsBusy_:  true,
			},
			"reddison.lux.2024-01-04": &hotel_room_busy.HotelRoomBusy{
				Id_:      "reddison.lux.2024-01-04",
				HotelId_: "reddison",
				RoomId_:  "lux",
				Date_:    "2024-01-04",
				IsBusy_:  true,
			},
			"reddison.lux.2024-01-05": &hotel_room_busy.HotelRoomBusy{
				Id_:      "reddison.lux.2024-01-05",
				HotelId_: "reddison",
				RoomId_:  "lux",
				Date_:    "2024-01-05",
				IsBusy_:  false,
			},
		},
	}
}

// SetHotelRoomBusy -- устанавливает состояние бронирования номера
func (sf *StoreRam) SetHotelRoomBusy(busy types.IHotelRoomBusy) error {
	sf.blockRoomBusy.Lock()
	defer sf.blockRoomBusy.Unlock()
	if busy == nil {
		return fmt.Errorf("StoreRam.SetHotelRoomBusy(): IHotelRoomBusy==nil")
	}
	// _, isOk := sf.tableRoomBusy[busy.Id()]
	// if isOk {
	// 	return fmt.Errorf("StoreRam.SetHotelRoomBusy(): IHotelRoomBusy with id=%q already exists", busy.Id())
	// }
	sf.tableRoomBusy[busy.Id()] = busy
	return nil
}

// GetHotelRoomBusy -- возвращает состояние бронирования номера
func (sf *StoreRam) GetHotelRoomBusy(id alias.BusyId) (types.IHotelRoomBusy, error) {
	sf.blockRoomBusy.RLock()
	defer sf.blockRoomBusy.RUnlock()
	busy, isOk := sf.tableRoomBusy[id]
	if !isOk {
		return nil, fmt.Errorf("StoreRam.GetHotelRoomBusy(): IHotelRoomBusy with id=%q not found", id)
	}
	return busy, nil
}

// SetOrder -- устанавливает ордер заказа бронирования в хранилище
func (sf *StoreRam) SetOrder(order types.IHotelRoomOrder) error {
	sf.blockOrder.Lock()
	defer sf.blockOrder.Unlock()
	if order == nil {
		return fmt.Errorf("StoreRam.SetOrder(): IHotelRoomOrder==nil")
	}

	_, isOk := sf.tableOrder[order.Id()]
	if isOk {
		return fmt.Errorf("StoreRam.SetOrder(): IHotelRoomOrder with id %q already exists", order.Id())
	}
	sf.tableOrder[order.Id()] = order
	return nil
}

// GetOrder -- возвращает ордер по ID
func (sf *StoreRam) GetOrder(id alias.OrderId) (types.IHotelRoomOrder, error) {
	sf.blockOrder.RLock()
	defer sf.blockOrder.RUnlock()
	order, isOk := sf.tableOrder[id]
	if !isOk {
		return nil, fmt.Errorf("StoreRam.GetOrder(): IHotelRoomOrder with id=%q not found", id)
	}
	return order, nil
}