import * as Actions from "../actions";

import { ILearner } from "../models/learner";
import { IUser } from "../models/user";
import { IVocab } from "../models/vocab";

interface IState {
    drawer: boolean;
    drawerButton: boolean;
    authenticated: boolean;

    // TODO: Rework this
    user: IUser | {},

    login: {
        loading: boolean;
        snackMsg: string;
        snackOpen: boolean;
    };

    level: {
        currentVocab: IVocab;
        lookedAt: number[];
        toReview: boolean;
        vocab: IVocab[];
        loading: boolean;
    };

    topTen: ILearner[];
};

const initialState: IState = {
    // Show the drawer?
    drawer: false,
    // Should we show the button to open the drawer?
    drawerButton: true,
    // Is the user authenticated?
    // TODO: Set this to false
    authenticated: true,

    user: {},

    login: {
        loading: false,
        snackMsg: "",
        snackOpen: false,
    },

    level: {
        currentVocab: {} as IVocab,
        lookedAt: [0],
        toReview: false,
        vocab: [],
        loading: true,
    },

    // The top ten
    topTen: [],
};

export function LateinicusApp(state: IState = initialState, action: any) {
    switch (action.type) {
        case Actions.SET_DRAWER:
            return Object.assign({}, state, {
                drawer: action.show,
            });
        case Actions.SET_DRAWER_BUTTON:
            return Object.assign({}, state, {
                drawerButton: action.show,
            });
        case Actions.LOGIN_SET_SNACKBAR:
            return Object.assign({}, state, {
                login: {
                    loading: state.login.loading,
                    snackMsg: action.msg,
                    snackOpen: action.show,
                },
            });
        case Actions.LOGIN_SET_LOADING:
            return Object.assign({}, state, {
                login: {
                    loading: action.show,
                    snackMsg: state.login.snackMsg,
                    snackOpen: state.login.snackOpen,
                },
            });
        case Actions.SET_AUTHENTICATED:
            return Object.assign({}, state, {
                authenticated: action.status,
            });
        case Actions.SET_USER:
            return Object.assign({}, state, {
                user: action.user,
            });
        case Actions.LEVEL_SET_REVIEW:
            return Object.assign({}, state, {
                level: Object.assign({}, state.level, {
                    toReview: action.state,
                    // Make sure that we are in a "loading mode", when the page gets
                    // called the next time
                    loading: true,
                }),
            });
        case Actions.LEVEL_SET_LOOKEDAT:
            return Object.assign({}, state, {
                level: Object.assign({}, state.level, {
                    lookedAt: action.lookedAt,
                }),
            });
        case Actions.LEVEL_SET_CUR_VOCAB:
            return Object.assign({}, state, {
                level: Object.assign({}, state.level, {
                    currentVocab: action.vocab,
                }),
            });
        case Actions.LEVEL_SET_VOCAB:
            return Object.assign({}, state, {
                level: Object.assign({}, state.level, {
                    vocab: action.vocab,
                }),
            });
        case Actions.LEVEL_SET_LOADING:
            return Object.assign({}, state, {
                level: Object.assign({}, state.level, {
                    loading: action.state,
                }),
            });
        default:
            return state;
    }
};