/*
 * Aurora Store
 *  Copyright (C) 2021, Rahul Kumar Patel <whyorean@gmail.com>
 *
 *  Aurora Store 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  Aurora Store 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 Aurora Store.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package com.aurora.store.view.ui.all

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.lifecycle.ViewModelProvider
import com.aurora.gplayapi.data.models.StreamCluster
import com.aurora.store.R
import com.aurora.store.databinding.FragmentUpdatesBinding
import com.aurora.store.view.custom.recycler.EndlessRecyclerOnScrollListener
import com.aurora.store.view.epoxy.views.app.AppListViewModel_
import com.aurora.store.view.epoxy.views.AppProgressViewModel_
import com.aurora.store.view.epoxy.views.HeaderViewModel_
import com.aurora.store.view.epoxy.views.shimmer.AppListViewShimmerModel_
import com.aurora.store.view.ui.commons.BaseFragment
import com.aurora.store.viewmodel.all.LibraryAppsViewModel

class LibraryAppsFragment : BaseFragment() {

    private lateinit var VM: LibraryAppsViewModel
    private lateinit var B: FragmentUpdatesBinding
    lateinit var endlessRecyclerOnScrollListener: EndlessRecyclerOnScrollListener

    companion object {
        @JvmStatic
        fun newInstance(): LibraryAppsFragment {
            return LibraryAppsFragment().apply {

            }
        }
    }

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        B = FragmentUpdatesBinding.bind(
            inflater.inflate(
                R.layout.fragment_updates,
                container,
                false
            )
        )

        VM = ViewModelProvider(requireActivity()).get(LibraryAppsViewModel::class.java)

        return B.root
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        B.swipeRefreshLayout.isEnabled = false
        VM.liveData.observe(viewLifecycleOwner, {
            updateController(it)
        })
        attachRecycler()

        updateController(null)
    }

    private fun attachRecycler() {
        endlessRecyclerOnScrollListener = object : EndlessRecyclerOnScrollListener() {
            override fun onLoadMore(currentPage: Int) {
                VM.observe()
            }
        }
        B.recycler.addOnScrollListener(endlessRecyclerOnScrollListener)
    }

    private fun updateController(streamCluster: StreamCluster?) {
        B.recycler.withModels {
            setFilterDuplicates(true)
            if (streamCluster == null) {
                for (i in 1..6) {
                    add(
                        AppListViewShimmerModel_()
                            .id(i)
                    )
                }
            } else {
                add(
                    HeaderViewModel_()
                        .id("header")
                        .title(
                            if (streamCluster.clusterTitle.isEmpty())
                                getString(R.string.title_apps_library)
                            else
                                streamCluster.clusterTitle
                        )
                )
                streamCluster.clusterAppList.forEach { app ->
                    add(
                        AppListViewModel_()
                            .id(app.id)
                            .app(app)
                            .click { _ -> openDetailsActivity(app) }
                    )
                }

                if (streamCluster.hasNext()) {
                    add(
                        AppProgressViewModel_()
                            .id("progress")
                    )
                }
            }
        }
    }
}