package jackall.moncalc.service

import android.app.Service
import android.content.Context
import android.content.Intent
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 jackall.moncalc.Const
import jackall.moncalc.R

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

    val overlayView: ViewGroup by lazy { LayoutInflater.from(this).inflate(R.layout.overlay_layout, null) as ViewGroup }
    val windowManager: WindowManager by lazy { applicationContext.getSystemService(Context.WINDOW_SERVICE) as WindowManager }
    var params: WindowManager.LayoutParams? = null
    val displaySize: Point by lazy {
        val display = windowManager.defaultDisplay
        val size = Point()
        display.getSize(size)
        size
    }
    var isLongClick: Boolean = false

    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())

        setInitOverlayView()

        return START_STICKY
    }

    private fun setInitOverlayView() {
        overlayView.apply(clickListener())

        if (Build.VERSION.SDK_INT >= 26) {
            params = 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 {
            params = 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)
        }

        windowManager.addView(overlayView, params)
    }

    private fun clickListener(): 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)

                                params?.x = centerX
                                params?.y = centerY

                                windowManager.updateViewLayout(overlayView, params)
                            }
                        }

                        MotionEvent.ACTION_UP -> {
                            if (isLongClick) {

                            }
                            isLongClick = false
                        }
                    }
                    false
                }
            }
        }
    }

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