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MonCalc / app / src / main / kotlin / jackall / moncalc / service / MainService.kt
package jackall.moncalc.service

import android.app.Service
import android.content.Context
import android.content.Intent
import android.databinding.DataBindingUtil
import android.graphics.PixelFormat
import android.graphics.Point
import android.os.Build
import android.os.IBinder
import android.support.v4.app.NotificationCompat
import android.view.*
import android.widget.ArrayAdapter
import jackall.moncalc.Const
import jackall.moncalc.Contract.MainServiceContract
import jackall.moncalc.R
import jackall.moncalc.common.PreferenceKeys
import jackall.moncalc.common.PreferenceNames
import jackall.moncalc.databinding.RegistOverlayBinding
import jackall.moncalc.db.MonstDataRealmHelper
import jackall.moncalc.utils.MySharedPref
import jackall.moncalc.viewmodel.OverlayRegistViewModel
import jackall.moncalc.vo.Fruit
import jackall.moncalc.vo.Grade
import jackall.moncalc.vo.Temple


/**
 * Created by matsumoto_k on 2017/11/01.
 */
class MainService : Service(), MainServiceContract {

    val mySharedPref by lazy { MySharedPref(this, PreferenceNames.CONFIG) }
    val moveOverlayView: ViewGroup by lazy { LayoutInflater.from(this).inflate(R.layout.move_overlay, null) as ViewGroup }
    val registBinding by lazy {
        DataBindingUtil.inflate<RegistOverlayBinding>(LayoutInflater.from(this), R.layout.regist_overlay, null, false)
    }
    val windowManager: WindowManager by lazy { applicationContext.getSystemService(Context.WINDOW_SERVICE) as WindowManager }
    var moveViewParams: WindowManager.LayoutParams? = null
    var registViewParams: WindowManager.LayoutParams? = null
    val displaySize: Point by lazy {
        val display = windowManager.defaultDisplay
        val size = Point()
        display.getSize(size)
        size
    }
    var isLongClick: Boolean = false

    val monstDataRealmHelper = MonstDataRealmHelper()

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        val notificationBuilder = NotificationCompat.Builder(this, Const.serviceChannelId)
                .setContentTitle("mainService") // TODO:タイトルをセット
                .setSmallIcon(R.mipmap.ic_launcher) // TODO:白抜きのアイコンをセット
        startForeground(Const.notificationId, notificationBuilder.build())

        setMoveViewConfig()
        setRegistViewConfig()

        showMoveView()

        return START_STICKY
    }

    private fun setMoveViewConfig() {
        moveOverlayView.apply(setMoveViewClickListener())

        if (Build.VERSION.SDK_INT >= 26) {
            moveViewParams = WindowManager.LayoutParams(
                    WindowManager.LayoutParams.WRAP_CONTENT,
                    WindowManager.LayoutParams.WRAP_CONTENT,
                    WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
                    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE or
                            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN or
                            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL or
                            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                    PixelFormat.TRANSLUCENT)
        } else {
            moveViewParams = WindowManager.LayoutParams(
                    WindowManager.LayoutParams.WRAP_CONTENT,
                    WindowManager.LayoutParams.WRAP_CONTENT,
                    WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
                    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE or
                            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN or
                            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL or
                            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                    PixelFormat.TRANSLUCENT)
        }
    }

    private fun setRegistViewConfig() {
        if (Build.VERSION.SDK_INT >= 26) {
            registViewParams = WindowManager.LayoutParams(
                    WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
                    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE or
                            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN or
                            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL or
                            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                    PixelFormat.TRANSLUCENT)
        } else {
            registViewParams = WindowManager.LayoutParams(
                    WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
                    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE or
                            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN or
                            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL or
                            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                    PixelFormat.TRANSLUCENT)
        }

        registBinding.registViewModel = OverlayRegistViewModel(this as MainServiceContract)

        val templeSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, monstDataRealmHelper.findNames(Temple::class.java))
        val fruitSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, monstDataRealmHelper.findNames(Fruit::class.java))
        val gradeSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, monstDataRealmHelper.findNames(Grade::class.java))
        registBinding.templeSpinner.adapter = templeSpinnerAdapter
        registBinding.fruitSpinner.adapter = fruitSpinnerAdapter
        registBinding.gradeSpinner.adapter = gradeSpinnerAdapter

        registViewParams?.gravity = Gravity.TOP
    }

    override fun showMoveView() {
        moveViewParams?.x = mySharedPref.getValue(PreferenceKeys.VIEWX, Int::class.java, 0) as Int
        moveViewParams?.y = mySharedPref.getValue(PreferenceKeys.VIEWY, Int::class.java, 0) as Int

        if (registBinding.root.isShown) {
            windowManager.removeView(registBinding.root)
        }

        windowManager.addView(moveOverlayView, moveViewParams)
    }

    override fun showRegistView() {
        if (moveOverlayView.isShown) {
            windowManager.removeView(moveOverlayView)
        }

        windowManager.addView(registBinding.root, registViewParams)
    }

    private fun setMoveViewClickListener(): View.() -> Unit {
        return {
            setOnLongClickListener { view ->
                isLongClick = true
                false
            }.apply {
                setOnTouchListener { view, motionEvent ->

                    val x = motionEvent.rawX.toInt()
                    val y = motionEvent.rawY.toInt()

                    when (motionEvent.action) {

                        MotionEvent.ACTION_MOVE -> {
                            if (isLongClick) {

                                val centerX = x - (displaySize.x / 2)
                                val centerY = y - (displaySize.y / 2)

                                moveViewParams?.x = centerX
                                moveViewParams?.y = centerY

                                windowManager.updateViewLayout(moveOverlayView, moveViewParams)
                            }
                        }

                        MotionEvent.ACTION_UP -> {
                            if (isLongClick) {
                                mySharedPref.putValue(PreferenceKeys.VIEWX, Int::class.java, moveViewParams?.x ?: 0)
                                mySharedPref.putValue(PreferenceKeys.VIEWY, Int::class.java, moveViewParams?.y ?: 0)
                            } else {
                                showRegistView()
                            }
                            isLongClick = false
                        }
                    }
                    false
                }
            }
        }
    }

    override fun onDestroy() {
        super.onDestroy()
        if (moveOverlayView.isShown) {
            windowManager.removeView(moveOverlayView)
        }
        if (registBinding.root.isShown) {
            windowManager.removeView(registBinding.root)
        }
        registBinding.registViewModel?.realmInstanceClose()
    }

    override fun finish() {
        stopSelf()
    }

    override fun onBind(intent: Intent?): IBinder? {
        return null
    }
}