wongjiahau/ttap-web

import { MasterStateAction } from "../reducers/masterState";
import { IMasterState } from "../reducers/masterState";

export class GoToThisAlternativeSlot extends MasterStateAction {
  public constructor(
    private sourceSlotUid: number,
    private destinationSlotUid: number
  ) {
    super();
  }
  public TypeName(): string {
    return `go to this alternate slot (destination=${this.destinationSlotUid}) `;
  }

  protected GenerateNewState(state: IMasterState): IMasterState {
    const sourceSlot = state.TimetableListState.SlotViewModelStore.GetOne(
      this.sourceSlotUid
    );
    if (!sourceSlot) {
      console.error("Something is wrong, source slot is not defined");
      return state;
    }
    const alternativeSlot = sourceSlot.AlternativeSlots.find(
      (slot) => slot.slot.Uid === this.destinationSlotUid
    );

    if (!alternativeSlot) {
      return state;
    }
    return {
      ...state,
      TimetableListState: {
        ...state.TimetableListState,
        CurrentIndex: alternativeSlot.destinationTimetableIndex,
        CurrentSubIndex: alternativeSlot.destinationTimetableSubIndex,
        ShowingAlternateSlotOf: null,
      },
      SnackbarState: {
        ...state.SnackbarState,
        IsOpen: false,
      },
    };
  }
}