/*
 * Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
 * SPDX-License-Identifier: GPL-3.0-only
 */
package dev.msfjarvis.aps.ui.folderselect

import android.content.Context
import android.os.Bundle
import android.view.View
import androidx.appcompat.app.AppCompatActivity
import androidx.fragment.app.Fragment
import androidx.fragment.app.activityViewModels
import androidx.recyclerview.widget.LinearLayoutManager
import com.github.michaelbull.result.onFailure
import com.github.michaelbull.result.runCatching
import dev.msfjarvis.aps.R
import dev.msfjarvis.aps.data.password.PasswordItem
import dev.msfjarvis.aps.databinding.PasswordRecyclerViewBinding
import dev.msfjarvis.aps.ui.adapters.PasswordItemRecyclerAdapter
import dev.msfjarvis.aps.ui.passwords.PasswordStore
import dev.msfjarvis.aps.util.extensions.viewBinding
import dev.msfjarvis.aps.util.viewmodel.ListMode
import dev.msfjarvis.aps.util.viewmodel.SearchableRepositoryViewModel
import java.io.File
import me.zhanghai.android.fastscroll.FastScrollerBuilder

class SelectFolderFragment : Fragment(R.layout.password_recycler_view) {

    private val binding by viewBinding(PasswordRecyclerViewBinding::bind)
    private lateinit var recyclerAdapter: PasswordItemRecyclerAdapter
    private lateinit var listener: OnFragmentInteractionListener

    private val model: SearchableRepositoryViewModel by activityViewModels()

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        binding.fab.hide()
        recyclerAdapter = PasswordItemRecyclerAdapter()
            .onItemClicked { _, item ->
                listener.onFragmentInteraction(item)
            }
        binding.passRecycler.apply {
            layoutManager = LinearLayoutManager(requireContext())
            itemAnimator = null
            adapter = recyclerAdapter
        }

        FastScrollerBuilder(binding.passRecycler).build()
        registerForContextMenu(binding.passRecycler)

        val path = requireNotNull(requireArguments().getString(PasswordStore.REQUEST_ARG_PATH))
        model.navigateTo(File(path), listMode = ListMode.DirectoriesOnly, pushPreviousLocation = false)
        model.searchResult.observe(viewLifecycleOwner) { result ->
            recyclerAdapter.submitList(result.passwordItems)
        }
    }

    override fun onAttach(context: Context) {
        super.onAttach(context)
        runCatching {
            listener = object : OnFragmentInteractionListener {
                override fun onFragmentInteraction(item: PasswordItem) {
                    if (item.type == PasswordItem.TYPE_CATEGORY) {
                        model.navigateTo(item.file, listMode = ListMode.DirectoriesOnly)
                        (requireActivity() as AppCompatActivity).supportActionBar?.setDisplayHomeAsUpEnabled(true)
                    }
                }
            }
        }.onFailure {
            throw ClassCastException("$context must implement OnFragmentInteractionListener")
        }
    }

    val currentDir: File
        get() = model.currentDir.value!!

    interface OnFragmentInteractionListener {

        fun onFragmentInteraction(item: PasswordItem)
    }
}