conventionschedule-android/app/src/main/java/com/adlerosn/brasilfurfest/schedule/fragment/ConventionDayFragment.kt

package com.adlerosn.brasilfurfest.schedule.fragment

import android.os.Bundle
import android.support.v4.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.adlerosn.brasilfurfest.R
import com.adlerosn.brasilfurfest.schedule.ScheduleManager
import com.adlerosn.brasilfurfest.schedule.abstractDataTypes.GregorianCalendarRange
import com.adlerosn.brasilfurfest.schedule.adapters.DayHoursAdapter
import com.brandongogetap.stickyheaders.StickyLayoutManager
import kotlinx.android.synthetic.main.fragment_schedule_day.view.*
import org.jetbrains.anko.doAsync
import org.jetbrains.anko.uiThread
import java.util.*

class ConventionDayFragment : Fragment() {
    companion object {
        fun newInstance(scheduleManager: ScheduleManager, day: GregorianCalendarRange): Fragment {
            return ConventionDayFragment().apply {
                arguments = Bundle().apply {
                    putSerializable("dayRange", day)
                    putSerializable("scheduleManager", scheduleManager)
                }
            }
        }
    }

    lateinit var scheduleManager: ScheduleManager
    lateinit var day: GregorianCalendarRange

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        arguments?.apply {
            day = getSerializable("dayRange")!! as GregorianCalendarRange
            scheduleManager = getSerializable("scheduleManager") as ScheduleManager
        }
        val rootView = inflater.inflate(R.layout.fragment_schedule_day, container, false)
        val adapter = DayHoursAdapter(
                activity!!,
                day.split(
                        scheduleManager.convention.splitDayIn
                ).filter {
                    it.start >= scheduleManager.convention.startCalendarOn
                },
                scheduleManager
        )
        val layoutManager = StickyLayoutManager(context!!, adapter)
        layoutManager.elevateHeaders(3)
        rootView.stickyDays.layoutManager = layoutManager
        rootView.stickyDays.adapter = adapter
        doAsync {
            scheduleManager.addObserver { _: Observable?, _: Any? ->
                (0..(adapter.itemCount - 1)).forEach { pos: Int ->
                    uiThread {
                        adapter.notifyItemChanged(pos)
                    }
                }
            }
        }
        return rootView
    }
}