mihon/app/src/main/java/eu/kanade/tachiyomi/widget/EmptyView.kt

package eu.kanade.tachiyomi.widget

import android.content.Context
import android.util.AttributeSet
import android.widget.LinearLayout
import android.widget.RelativeLayout
import androidx.annotation.StringRes
import androidx.appcompat.widget.AppCompatButton
import eu.kanade.tachiyomi.R
import eu.kanade.tachiyomi.util.view.gone
import eu.kanade.tachiyomi.util.view.visible
import kotlin.random.Random
import kotlinx.android.synthetic.main.common_view_empty.view.actions_container
import kotlinx.android.synthetic.main.common_view_empty.view.text_face
import kotlinx.android.synthetic.main.common_view_empty.view.text_label

class EmptyView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
        RelativeLayout(context, attrs) {

    init {
        inflate(context, R.layout.common_view_empty, this)
    }

    /**
     * Hide the information view
     */
    fun hide() {
        this.gone()
    }

    /**
     * Show the information view
     * @param textResource text of information view
     */
    fun show(@StringRes textResource: Int, actions: List<Action>? = null) {
        show(context.getString(textResource), actions)
    }

    fun show(message: String, actions: List<Action>? = null) {
        text_face.text = getRandomErrorFace()
        text_label.text = message

        actions_container.removeAllViews()
        if (!actions.isNullOrEmpty()) {
            actions.forEach {
                val button = AppCompatButton(context).apply {
                    layoutParams = LinearLayout.LayoutParams(
                        LinearLayout.LayoutParams.WRAP_CONTENT,
                        LinearLayout.LayoutParams.WRAP_CONTENT)

                    setText(it.resId)
                    setOnClickListener(it.listener)
                }

                actions_container.addView(button)
            }
        }

        this.visible()
    }

    companion object {
        private val ERROR_FACES = listOf(
            "(･o･;)",
            "Σ(ಠ_ಠ)",
            "ಥ_ಥ",
            "(˘･_･˘)",
            "(；￣Д￣)",
            "(･Д･。"
        )

        fun getRandomErrorFace(): String {
            return ERROR_FACES[Random.nextInt(ERROR_FACES.size)]
        }
    }

    data class Action(
        @StringRes val resId: Int,
        val listener: OnClickListener
    )
}