package net.osmand.telegram.ui

import android.os.Bundle
import android.support.v4.app.DialogFragment
import android.support.v4.app.FragmentManager
import android.support.v7.widget.LinearLayoutManager
import android.support.v7.widget.RecyclerView
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.TextView
import android.widget.Toast
import net.osmand.telegram.R
import net.osmand.telegram.TelegramApplication
import net.osmand.telegram.helpers.TelegramUiHelper
import net.osmand.telegram.ui.SetTimeDialogFragment.SetTimeListAdapter.ChatViewHolder
import org.drinkless.td.libcore.telegram.TdApi

class SetTimeDialogFragment : DialogFragment() {

	private val app: TelegramApplication
		get() = activity?.application as TelegramApplication

	private val telegramHelper get() = app.telegramHelper

	private val adapter = SetTimeListAdapter()

	private val chatIds = HashSet<Long>()

	override fun onCreate(savedInstanceState: Bundle?) {
		super.onCreate(savedInstanceState)
		setStyle(DialogFragment.STYLE_NO_FRAME, R.style.AppTheme_NoActionbar)
	}

	override fun onCreateView(
		inflater: LayoutInflater,
		container: ViewGroup?,
		savedInstanceState: Bundle?
	): View? {
		arguments?.apply {
			chatIds.addAll(getLongArray(CHATS_KEY).toSet())
		}

		val view = inflater.inflate(R.layout.fragment_set_time_dialog, container)

		view.findViewById<View>(R.id.time_for_all_row).apply {
			findViewById<ImageView>(R.id.time_for_all_icon).setImageDrawable(
				app.uiUtils.getIcon(R.drawable.ic_action_time_span, R.color.ctrl_active_light)
			)
			findViewById<TextView>(R.id.time_for_all_value).text = "1 hour"
			setOnClickListener {
				Toast.makeText(context, "Time for all", Toast.LENGTH_SHORT).show()
			}
		}

		view.findViewById<RecyclerView>(R.id.recycler_view).apply {
			layoutManager = LinearLayoutManager(context)
			adapter = this@SetTimeDialogFragment.adapter
		}

		view.findViewById<TextView>(R.id.secondary_btn).apply {
			text = getString(R.string.shared_string_back)
			setOnClickListener {
				dismiss()
			}
		}

		view.findViewById<TextView>(R.id.primary_btn).apply {
			text = getString(R.string.shared_string_share)
			setOnClickListener {
				Toast.makeText(context, "Share", Toast.LENGTH_SHORT).show()
			}
		}

		return view
	}

	override fun onResume() {
		super.onResume()
		updateList()
	}

	private fun updateList() {
		val chats: MutableList<TdApi.Chat> = mutableListOf()
		telegramHelper.getChatList().filter { chatIds.contains(it.chatId) }.forEach { orderedChat ->
			telegramHelper.getChat(orderedChat.chatId)?.also { chats.add(it) }
		}
		adapter.chats = chats
	}

	inner class SetTimeListAdapter : RecyclerView.Adapter<ChatViewHolder>() {

		var chats: List<TdApi.Chat> = emptyList()
			set(value) {
				field = value
				notifyDataSetChanged()
			}

		override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ChatViewHolder {
			val view = LayoutInflater.from(parent.context)
				.inflate(R.layout.user_list_item, parent, false)
			return ChatViewHolder(view)
		}

		override fun onBindViewHolder(holder: ChatViewHolder, position: Int) {
			val chat = chats[position]

			TelegramUiHelper.setupPhoto(app, holder.icon, chat.photo?.small?.local?.path)
			holder.title?.text = chat.title
			holder.description?.text = "Some description" // FIXME
			holder.textInArea?.apply {
				visibility = View.VISIBLE
				text = "1 h"
			}
			holder.bottomShadow?.visibility = View.GONE
			holder.itemView.setOnClickListener {
				Toast.makeText(context, chat.title, Toast.LENGTH_SHORT).show()
			}
		}

		override fun getItemCount() = chats.size

		inner class ChatViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
			val icon: ImageView? = view.findViewById(R.id.icon)
			val title: TextView? = view.findViewById(R.id.title)
			val description: TextView? = view.findViewById(R.id.description)
			val textInArea: TextView? = view.findViewById(R.id.text_in_area)
			val bottomShadow: View? = view.findViewById(R.id.bottom_shadow)
		}
	}

	companion object {

		private const val TAG = "SetTimeDialogFragment"
		private const val CHATS_KEY = "chats_key"

		fun showInstance(fm: FragmentManager, chats: Set<Long>): Boolean {
			return try {
				val fragment = SetTimeDialogFragment()
				fragment.arguments = Bundle().apply {
					putLongArray(CHATS_KEY, chats.toLongArray())
				}
				fragment.show(fm, TAG)
				true
			} catch (e: RuntimeException) {
				false
			}
		}
	}
}