/* Copyright 2019 Conny Duck
 *
 * This file is a part of Tusky.
 *
 * 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.
 *
 * Tusky 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 Tusky; if not,
 * see <http://www.gnu.org/licenses>. */

package com.keylesspalace.tusky

import android.content.Context
import androidx.annotation.DrawableRes
import androidx.annotation.StringRes
import androidx.fragment.app.Fragment
import com.keylesspalace.tusky.components.conversation.ConversationsFragment
import com.keylesspalace.tusky.fragment.ChatsFragment
import com.keylesspalace.tusky.fragment.NotificationsFragment
import com.keylesspalace.tusky.fragment.TimelineFragment

/** this would be a good case for a sealed class, but that does not work nice with Room */

const val HOME = "Home"
const val NOTIFICATIONS = "Notifications"
const val LOCAL = "Local"
const val FEDERATED = "Federated"
const val DIRECT = "Direct"
const val HASHTAG = "Hashtag"
const val LIST = "List"
const val CHATS = "Chats"

data class TabData(val id: String,
                   @StringRes val text: Int,
                   @DrawableRes val icon: Int,
                   val fragment: (List<String>) -> Fragment,
                   val arguments: List<String> = emptyList(),
                   val title: (Context) -> String = { context -> context.getString(text)}
                )

fun createTabDataFromId(id: String, arguments: List<String> = emptyList()): TabData {
    return when (id) {
        HOME -> TabData(
                HOME,
                R.string.title_home,
                R.drawable.ic_home_24dp,
                { TimelineFragment.newInstance(TimelineFragment.Kind.HOME) }
        )
        NOTIFICATIONS -> TabData(
                NOTIFICATIONS,
                R.string.title_notifications,
                R.drawable.ic_notifications_24dp,
                { NotificationsFragment.newInstance() }
        )
        LOCAL -> TabData(
                LOCAL,
                R.string.title_public_local,
                R.drawable.ic_local_24dp,
                { TimelineFragment.newInstance(TimelineFragment.Kind.PUBLIC_LOCAL) }
        )
        FEDERATED -> TabData(
                FEDERATED,
                R.string.title_public_federated,
                R.drawable.ic_public_24dp,
                { TimelineFragment.newInstance(TimelineFragment.Kind.PUBLIC_FEDERATED) }
        )
        DIRECT -> TabData(
                DIRECT,
                R.string.title_direct_messages,
                R.drawable.ic_reblog_direct_24dp,
                { ConversationsFragment.newInstance() }
        )
        HASHTAG -> TabData(
                HASHTAG,
                R.string.hashtags,
                R.drawable.ic_hashtag,
                { args -> TimelineFragment.newHashtagInstance(args) },
                arguments,
                { context -> arguments.joinToString(separator = " ") { context.getString(R.string.title_tag, it) }}
        )
        LIST -> TabData(
                    LIST,
                    R.string.list,
                    R.drawable.ic_list,
                    { args -> TimelineFragment.newInstance(TimelineFragment.Kind.LIST, args.getOrNull(0).orEmpty()) },
                    arguments,
                { arguments.getOrNull(1).orEmpty() }
            )
        CHATS -> TabData(
                CHATS,
                R.string.chats,
                R.drawable.ic_forum_24px,
                { ChatsFragment() }
        )
        else -> throw IllegalArgumentException("unknown tab type")
    }
}

fun defaultTabs(): List<TabData> {
    return listOf(
            createTabDataFromId(HOME),
            createTabDataFromId(NOTIFICATIONS),
            createTabDataFromId(LOCAL),
            createTabDataFromId(FEDERATED),
            createTabDataFromId(CHATS)
    )
}