package ml.adamsprogs.bimba.models.adapters

import android.app.AlertDialog
import android.content.Context
import android.content.DialogInterface
import android.support.v4.content.res.ResourcesCompat
import android.support.v7.widget.RecyclerView
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.TextView
import ml.adamsprogs.bimba.R
import android.view.LayoutInflater
import ml.adamsprogs.bimba.Declinator
import ml.adamsprogs.bimba.models.Departure
import ml.adamsprogs.bimba.rollTime
import java.util.*

//todo<p:1> on click show time (HH:MM)
class DeparturesAdapter(val context: Context, private val departures: List<Departure>?, private val relativeTime: Boolean) :
        RecyclerView.Adapter<DeparturesAdapter.ViewHolder>() {

    companion object {
        const val VIEW_TYPE_LOADING: Int = 0
        const val VIEW_TYPE_CONTENT: Int = 1
        const val VIEW_TYPE_EMPTY: Int = 2
    }

//    init {
//        departures?.forEach {
//            println("${it.line} -> ${it.headsign} @${it.time} (${if (it.isModified) it.modification[0] else{} })")
//        }
//    }

    override fun getItemCount(): Int {
        if (departures == null || departures.isEmpty())
            return 1
        return departures.size
    }

    override fun getItemViewType(position: Int): Int {
        return when {
            departures == null -> VIEW_TYPE_EMPTY
            departures.isEmpty() -> VIEW_TYPE_LOADING
            else -> VIEW_TYPE_CONTENT
        }
    }

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        if (departures == null) {
            return
        }
        val line = holder.lineTextView
        val time = holder.timeTextView
        val direction = holder.directionTextView
        if (departures.isEmpty()) {
            time.text = context.getString(R.string.no_departures)
            return
        }
        val departure = departures[position]
        //println("${departure.line} -> ${departure.headsign} @${departure.time} (${if (departure.isModified) departure.modification[0] else {}})")
        val now = Calendar.getInstance()
        val departureTime = Calendar.getInstance().rollTime(departure.time)
        if (departure.tomorrow)
            departureTime.add(Calendar.DAY_OF_MONTH, 1)

        val departureIn = ((departureTime.timeInMillis - now.timeInMillis) / (1000 * 60)).toInt()
        val timeString: String

        timeString = if (departureIn > 60 || departureIn < 0 || !relativeTime)
            context.getString(R.string.departure_at, "${String.format("%02d", departureTime.get(Calendar.HOUR_OF_DAY))}:${String.format("%02d", departureTime.get(Calendar.MINUTE))}")
        else if (departureIn > 0 && !departure.onStop)
            context.getString(Declinator.decline(departureIn), departureIn.toString())
        else
            context.getString(R.string.now)

        line.text = departure.lineText
        time.text = timeString
        direction.text = context.getString(R.string.departure_to, departure.headsign)
        val icon = holder.typeIcon
        if (departure.vm)
            icon.setImageDrawable(ResourcesCompat.getDrawable(context.resources, R.drawable.ic_departure_vm, context.theme))
        else
            icon.setImageDrawable(ResourcesCompat.getDrawable(context.resources, R.drawable.ic_departure_timetable, context.theme))

        if (departure.lowFloor)
            holder.floorIcon.visibility = View.VISIBLE
        if (departure.isModified) {
            holder.infoIcon.visibility = View.VISIBLE
            holder.root.setOnClickListener {
                AlertDialog.Builder(context)
                        .setPositiveButton(context.getText(android.R.string.ok),
                                { dialog: DialogInterface, _: Int -> dialog.cancel() })
                        .setCancelable(true)
                        .setMessage(departure.modification.joinToString("; "))
                        .create().show()
            }
        }
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        val context = parent.context
        val inflater = LayoutInflater.from(context)

        val rowView = inflater.inflate(R.layout.row_departure, parent, false)
        return ViewHolder(rowView)
    }

    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
        val root = itemView.findViewById<View>(R.id.departureRow)!!
        val lineTextView: TextView = itemView.findViewById(R.id.lineNumber)
        val timeTextView: TextView = itemView.findViewById(R.id.departureTime)
        val directionTextView: TextView = itemView.findViewById(R.id.departureDirection)
        val typeIcon: ImageView = itemView.findViewById(R.id.departureTypeIcon)
        val infoIcon: ImageView = itemView.findViewById(R.id.departureInfoIcon)
        val floorIcon: ImageView = itemView.findViewById(R.id.departureFloorIcon)
    }
}