// notifications.ts
// Copyright (C) 2020  Dwayne Harris

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

import { Reducer } from 'redux'

import { NotificationActions } from '../actions/notifications'
import { NotificationsState } from '../types'

const initialState: NotificationsState = []

const reducer: Reducer<NotificationsState, NotificationActions> = (state = initialState, action) => {
    switch (action.type) {
        case 'NOTIFICATIONS_ADD_NOTIFICATION':
            const { id, type, content } = action.payload

            return [
                {
                    id,
                    type,
                    content,
                    auto: true,
                },
                ...state,
            ]
        case 'NOTIFICATIONS_REMOVE_NOTIFICATION':
            return state.filter(notification => notification.id !== action.payload)
        case 'NOTIFICATIONS_CLEAR_NOTIFICATION':
            return state.filter(notification => {
                if (notification.id === action.payload) return !notification.auto
                return true
            })
        case 'NOTIFICATIONS_SET_AUTO':
            return state.map(notification => {
                if (notification.id === action.payload) {
                    return {
                        ...notification,
                        auto: false,
                    }
                }

                return notification
            })
        default:
            return state
    }
}

export default reducer