assistant-android/app/src/main/java/com/gh/common/notifier/Notifier.kt

package com.gh.common.notifier

import android.app.Activity
import androidx.core.view.ViewCompat
import android.view.View
import android.view.ViewGroup
import com.gh.common.util.SPUtils
import com.gh.gamecenter.*
import java.lang.ref.WeakReference

@Suppress("DEPRECATION")
class Notifier private constructor() {

    companion object {

        private var activityWeakReference: WeakReference<Activity>? = null

        private const val SP_VIEWED_NOTIFIER = "viewed_notifier"

        /**
         * 根据内容决定是否显示 Notifier
         */
        @JvmStatic
        fun shouldShowNotifier(content: String): Boolean {
            val viewedNotifierCollection = SPUtils.getString(SP_VIEWED_NOTIFIER)
            return !viewedNotifierCollection.contains(content)
        }

        /**
         * 标记相应内容的 Notifier 已经显示过了
         */
        @JvmStatic
        fun tagNotifierAsShowed(content: String) {
            val viewedNotifierCollection = SPUtils.getString(SP_VIEWED_NOTIFIER)
            if (viewedNotifierCollection.length > 3000) {
                SPUtils.setString(SP_VIEWED_NOTIFIER, content)
            } else {
                SPUtils.setString(SP_VIEWED_NOTIFIER, viewedNotifierCollection + content)
            }
        }

        @JvmStatic
        fun create(activity: Activity?): Notifier {
            if (activity == null) {
                throw IllegalArgumentException("Activity cannot be null!")
            }

            val notifier = Notifier()

            // Hide current NotifierView, if one is active
            clearCurrent(activity)

            notifier.setActivity(activity)
            notifier.notifierView = NotifierView(activity)

            return notifier
        }

        @JvmStatic
        fun isActivityValid(activity: Activity?): Boolean {
            if (activity == null) return false

            return when (activity) {
                is MessageActivity -> false
                is DownloadManagerActivity -> false
                is CleanApkActivity -> false
                is SplashScreenActivity -> false
                else -> isNotExistInActivity(activity)
            }
        }

        @JvmStatic
        fun isNotExistInActivity(activity: Activity?): Boolean {
            if (activity == null) return false

            (activity.window?.decorView as? ViewGroup)?.let {
                //Find all NotifierView Views in Parent layout
                for (i in 0..it.childCount) {
                    val childView = if (it.getChildAt(i) is NotifierView) it.getChildAt(i) as NotifierView else null
                    if (childView != null && childView.windowToken != null) {
                        return false
                    }
                }
            }
            return true
        }

        /**
         * Cleans up the currently showing notifierView view, if one is present
         *
         * @param activity The current Activity
         */
        @JvmStatic
        fun clearCurrent(activity: Activity?) {
            (activity?.window?.decorView as? ViewGroup)?.let {
                //Find all NotifierView Views in Parent layout
                for (i in 0..it.childCount) {
                    val childView = if (it.getChildAt(i) is NotifierView) it.getChildAt(i) as NotifierView else null
                    if (childView != null && childView.windowToken != null) {
                        ViewCompat.animate(childView).alpha(0f).withEndAction(getRemoveViewRunnable(childView))
                    }
                }
            }
        }

        @JvmStatic
        fun hide() {
            activityWeakReference?.get()?.let { clearCurrent(it) }
        }

        private fun getRemoveViewRunnable(childView: NotifierView?): Runnable {
            return Runnable {
                childView?.let {
                    (childView.parent as? ViewGroup)?.removeView(childView)
                }
            }
        }
    }

    private var notifierView: NotifierView? = null

    private val activityDecorView: ViewGroup?
        get() {
            var decorView: ViewGroup? = null

            activityWeakReference?.get()?.let {
                decorView = it.window.decorView as ViewGroup
            }

            return decorView
        }

    fun show(showVerticalTranslateAnimation: Boolean, delay: Long? = 0): NotifierView? {
        activityWeakReference?.get()?.let {
            it.runOnUiThread {
                activityDecorView?.postDelayed({
                    notifierView?.showVerticalTranslateAnimation = showVerticalTranslateAnimation
                    activityDecorView?.addView(notifierView)
                }, delay!!)
            }
        }

        return notifierView
    }

    fun setIcon(url: String?): Notifier {
        url?.let { notifierView?.setIcon(it) }
        return this
    }

    fun setText(text: String?): Notifier {
        notifierView?.setText(text)

        return this
    }

    fun setDuration(time: Long): Notifier {
        notifierView?.duration = time
        return this
    }

    fun setOnClickListener(onClickListener: View.OnClickListener): Notifier {
        notifierView?.findViewById<View>(R.id.cardView)?.setOnClickListener(onClickListener)
        return this
    }

    private fun setActivity(activity: Activity) {
        activityWeakReference = WeakReference(activity)
    }
}