Bimba.git

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// SPDX-FileCopyrightText: Adam Evyčędo
//
// SPDX-License-Identifier: GPL-3.0-or-later

package xyz.apiote.bimba.czwek.search.ui

import android.content.Context
import android.content.Intent
import android.content.res.TypedArray
import android.graphics.CornerPathEffect
import android.graphics.Paint
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.lifecycle.ViewModelProvider
import dev.bandb.graphview.AbstractGraphAdapter
import dev.bandb.graphview.layouts.layered.SugiyamaArrowEdgeDecoration
import dev.bandb.graphview.layouts.layered.SugiyamaConfiguration
import dev.bandb.graphview.layouts.layered.SugiyamaLayoutManager
import xyz.apiote.bimba.czwek.R
import xyz.apiote.bimba.czwek.databinding.FragmentLineGraphBinding
import xyz.apiote.bimba.czwek.departures.DeparturesActivity
import xyz.apiote.bimba.czwek.repo.LineGraph
import xyz.apiote.bimba.czwek.repo.StopStub
import xyz.apiote.bimba.czwek.search.BimbaViewHolder


class LineGraphFragment : Fragment() {

	private lateinit var pageViewModel: PageViewModel
	private var _binding: FragmentLineGraphBinding? = null
	private val binding get() = _binding!!
	private lateinit var adapter: LineGraphAdapter

	override fun onCreate(savedInstanceState: Bundle?) {
		super.onCreate(savedInstanceState)
		adapter = LineGraphAdapter(
			arguments?.getString("lineName", "") ?: "",
			arguments?.getString("feedID", "") ?: ""
		)
		pageViewModel = ViewModelProvider(this)[PageViewModel::class.java].apply {
		}
	}

	override fun onCreateView(
		inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
	): View {

		_binding = FragmentLineGraphBinding.inflate(inflater, container, false)

		val configuration = SugiyamaConfiguration.Builder()
			.setLevelSeparation(100)
			.build()

		binding.recycler.layoutManager = SugiyamaLayoutManager(requireContext(), configuration)
		binding.recycler.addItemDecoration(SugiyamaArrowEdgeDecoration(Paint(Paint.ANTI_ALIAS_FLAG).apply {
			strokeWidth = 5f
			val a: TypedArray? = context?.theme?.obtainStyledAttributes(
				R.style.Theme_Bimba, intArrayOf(com.google.android.material.R.attr.colorOnBackground)
			)
			val intColor = a?.getColor(0, 0)
			a?.recycle()
			color = intColor ?: 0
			style = Paint.Style.STROKE
			strokeJoin = Paint.Join.ROUND
			pathEffect = CornerPathEffect(10f)
		}))
		binding.recycler.adapter = adapter
		pageViewModel.let {
			val lineGraph = arguments?.getParcelable("graph") as LineGraph?
			it.setupGraphView(lineGraph!!)
			it.data.observe(viewLifecycleOwner) { graph ->
				adapter.submitGraph(graph)
				// adapter.notifyDataSetChanged()
			}
		}

		return binding.root
	}

	companion object {
		@JvmStatic
		fun newInstance(lineGraph: LineGraph, lineName: String, feedID: String): LineGraphFragment {
			return LineGraphFragment().apply {
				arguments = Bundle().apply {
					putParcelable("graph", lineGraph)
					putString("lineName", lineName)
					putString("feedID", feedID)
				}
			}
		}
	}

	override fun onDestroyView() {
		super.onDestroyView()
		_binding = null
	}
}

class LineGraphAdapter(private val lineName: String, private val feedID: String) :
	AbstractGraphAdapter<BimbaViewHolder>() {
	private lateinit var context: Context
	override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BimbaViewHolder {
		context = parent.context
		val view = LayoutInflater.from(parent.context)
			.inflate(R.layout.result, parent, false)
		return BimbaViewHolder(view)
	}

	override fun onBindViewHolder(holder: BimbaViewHolder, position: Int) {
		BimbaViewHolder.bind(getNodeData(position) as StopStub, holder, context) {
			val intent = Intent(context, DeparturesActivity::class.java).apply {
				putExtra("code", it.code)
				putExtra("name", it.name)
				putExtra("line", lineName)
				putExtra("feedID", feedID)
			}
			context.startActivity(intent)
		}
	}
}