package com.adlerosn.brasilfurfest.schedule.adapters

import android.app.Activity
import android.content.Intent
import androidx.recyclerview.widget.DiffUtil
import android.view.View
import android.view.ViewGroup
import com.adlerosn.brasilfurfest.R
import com.adlerosn.brasilfurfest.helper.*
import com.adlerosn.brasilfurfest.helper.observables.Observable
import com.adlerosn.brasilfurfest.helper.observables.Observer
import com.adlerosn.brasilfurfest.schedule.EventActivity
import com.adlerosn.brasilfurfest.schedule.managers.ScheduleManager
import com.adlerosn.brasilfurfest.schedule.abstractDataTypes.dataholder.PeekableEvent
import com.adlerosn.brasilfurfest.schedule.viewHolders.RecyclerViewHolder
import kotlinx.android.synthetic.main.activity_favorites_item.view.*

class FavoritesAdapter(
        private val activity: Activity,
        private val scheduleManager: ScheduleManager
) :
        RecyclerViewAdapter(),
        Observer<Observable<Any?>, Any?>
{
    var data = scheduleManager.attendeeFavorites.toList()

    override fun update(observable: Observable<Any?>, args: Any?) = onDataChanged()

    private fun onDataChanged(){
        val oldData = data
        val newData = scheduleManager.attendeeFavorites.toList()
        activity.runOnUiThread {
            data = newData
            val diff = DiffUtil.calculateDiff(ListDiffCallback(oldData, newData))
            diff.dispatchUpdatesTo(this)
        }
    }

    override fun getItemCount(): Int = data.size

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerViewHolder =
            RecyclerViewHolder(parent.context.layoutInflater.inflate(R.layout.activity_favorites_item))

    override fun onBindViewHolder(holder: RecyclerViewHolder, position: Int) {
        val favorite = data[position]
        val view = holder.itemView
        view.startDay.text = favorite.timeRange.start.timeInMillis.formatAsDayOfWeek().toLowerCase().capitalize()
        view.startText.text = favorite.timeRange.start.timeInMillis.formatAsHoursAndMinutes()
        view.finishText.text = favorite.timeRange.finish.timeInMillis.formatAsHoursAndMinutes()
        view.eventTitle.text = favorite.getString()
        view.eventSubtitle.text = favorite.getSecondaryString()
        val event = favorite.findInConvention(scheduleManager.convention)
        if(event?.language == null){
            view.flag.visibility = View.GONE
        }else{
            view.flag.visibility = View.VISIBLE
            view.flag.setImageResource(event.language.drawableId)
        }
        view.setOnClickListener {
            activity.startActivity(
                    Intent(activity, EventActivity::class.java).apply {
                        putExtra("favorite", favorite)
                        putExtra("offerStar", false)
                    }
            )
        }
        view.starButton.setOnClickListener {
            scheduleManager.attendeeFavorites.remove(favorite)
            onDataChanged()
        }
        bindPeekAndPop(
                activity,
                view as ViewGroup,
                view,
                true,
                {view.starButton.callOnClick()},
                {view.callOnClick()},
                scheduleManager.convention.events.firstOrNull {
                    it.conbookId == favorite.conBookId
                }?.let {
                    PeekableEvent(it)
                } ?: PeekableEvent(favorite)
        )
    }

}