/**
 * TrackerMap
 * Copyright (C) 2021-2022  Iván Ávalos <avalos@disroot.org>, Henoch Ojeda <imhenoch@protonmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package mx.trackermap.TrackerMap.android.details.information

import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.util.Log
import android.util.TypedValue
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.LinearLayout
import android.widget.TextView
import androidx.core.content.res.ResourcesCompat
import androidx.core.widget.TextViewCompat
import androidx.fragment.app.Fragment
import com.google.android.material.button.MaterialButton
import kotlinx.coroutines.DelicateCoroutinesApi
import kotlinx.serialization.json.longOrNull
import mx.trackermap.TrackerMap.android.R
import mx.trackermap.TrackerMap.android.databinding.UnitDetailsInformationBinding
import mx.trackermap.TrackerMap.android.details.UnitDetailsAdapter
import mx.trackermap.TrackerMap.android.shared.MarkerTransformations
import mx.trackermap.TrackerMap.client.models.UnitInformation
import mx.trackermap.TrackerMap.utils.Formatter
import mx.trackermap.TrackerMap.utils.SpeedUnit
import org.koin.androidx.viewmodel.ext.android.viewModel
import kotlin.time.ExperimentalTime

@DelicateCoroutinesApi
@ExperimentalTime
class UnitInformationFragment : Fragment() {

    private var _binding: UnitDetailsInformationBinding? = null
    private val binding get() = _binding!!

    private val unitInformationViewModel: UnitInformationViewModel by viewModel()

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        _binding = UnitDetailsInformationBinding.inflate(inflater, container, false)
        return binding.root
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        fetchInformation()
        setupObservers()
    }

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

    private fun setupObservers() {
        unitInformationViewModel.unit.observe(viewLifecycleOwner) { unitInformation ->
            Log.d("UnitInformationFragment", "Unit Information Fetched - $unitInformation")
            binding.reportLoading.root.visibility = View.GONE
            unitInformation?.let {
                displayInformation(it)
            }
        }
    }

    private fun removeObservers() {
        unitInformationViewModel.unit.removeObservers(viewLifecycleOwner)
    }

    private fun fetchInformation() {
        val id = arguments?.getInt(UnitDetailsAdapter.DEVICE_ID_ARG)
        val name = arguments?.getString(UnitDetailsAdapter.DEVICE_NAME_ARG)
        val category = arguments?.getString(UnitDetailsAdapter.DEVICE_CATEGORY_ARG)
        unitInformationViewModel.fetchUnit(id ?: 0)
        binding.nameDetail.text = name
        context?.let {
            val metrics = it.resources.displayMetrics
            val icon = ResourcesCompat.getDrawable(
                it.resources,
                MarkerTransformations.categoryToResourceId(category),
                it.theme
            )
            icon?.setBounds(0, 0,
                TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 40f, metrics).toInt(),
                TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 40f, metrics).toInt()
            )
            binding.nameDetail.setCompoundDrawables(
                icon, null, null, null
            )
        }
        binding.nameDetail.compoundDrawablePadding =
            resources.getDimensionPixelSize(R.dimen.card_icon_margin)
        binding.reportLoading.root.visibility = View.VISIBLE
    }

    private fun displayInformation(unit: UnitInformation) {
        val context = context!!
        val details: MutableList<Pair<String, String>> = mutableListOf()
        unit.device.contact?.let { contact ->
            details.add(getString(R.string.unit_info_contact) to contact)
        }
        unit.device.uniqueId?.let { uniqueId ->
            details.add(getString(R.string.unit_info_uniqueid) to uniqueId)
        }
        unit.position?.fixTime?.let { fixTime ->
            details.add(getString(R.string.unit_info_datetime) to Formatter.formatDate(fixTime))
        }
        unit.position?.latitude?.let { latitude ->
            details.add(getString(R.string.unit_info_latitude) to "$latitude")
        }
        unit.position?.longitude?.let { longitude ->
            details.add(getString(R.string.unit_info_longitude) to "$longitude")
        }
        unit.position?.speed?.let { speed ->
            details.add(
                getString(R.string.unit_info_speed) to Formatter.formatSpeed(
                    speed,
                    SpeedUnit.KMH
                )
            )
        }
        unit.position?.address?.let { address ->
            details.add(getString(R.string.unit_info_address) to address)
        }
        unit.position?.attributes?.get("hours")?.longOrNull?.let {
            if (it > 0) {
                details.add(
                    getString(R.string.unit_hourmeter) to Formatter.formatHours(it)
                )
            }
        }
        unit.position?.protocol?.let { protocol ->
            details.add(getString(R.string.unit_info_protocol) to protocol)
        }

        details.forEach { entry ->
            val layout = LinearLayout(context)
            layout.orientation = LinearLayout.VERTICAL

            val params = LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.WRAP_CONTENT
            )
            params.setMargins(0, 0, 0, resources.getDimensionPixelSize(R.dimen.fields_spacing))
            layout.layoutParams = params

            val text1 = TextView(context)
            TextViewCompat.setTextAppearance(text1, R.style.TextAppearance_AppCompat_Body2)
            text1.text = entry.first

            val text2 = TextView(context)
            text2.text = entry.second

            layout.addView(text1)
            layout.addView(text2)
            binding.detailsLayout.addView(layout)
        }

        if (unit.position?.latitude != null && unit.position?.longitude != null) {
            val mapButton = MaterialButton(context)
            mapButton.text = getString(R.string.unit_info_map_button)
            mapButton.setOnClickListener {
                val latitude = unit.position!!.latitude
                val longitude = unit.position!!.longitude
                val url = getString(R.string.maps_url_template, latitude, longitude)
                startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(url)))
            }
            binding.detailsLayout.addView(mapButton)
        }
    }
}