import android.graphics.Color
import android.view.View
import androidx.annotation.ColorInt
import androidx.databinding.BindingAdapter
import androidx.databinding.ObservableField
import com.google.android.material.snackbar.Snackbar

/**
 * Created by Ricard Aparicio on 04/04/2019.
 * ricard.aparicio@inqbarna.com
 */

interface IBindingSnackProvider {
    val snackMessage: ObservableField<ConsumableSnackMessage>
    fun showSnack(snackMessage: SnackMessage)
}

class BindingSnackProvider : IBindingSnackProvider {
    override val snackMessage: ObservableField<ConsumableSnackMessage> by lazy { ObservableField<ConsumableSnackMessage>() }

    override fun showSnack(snackMessage: SnackMessage) {
        this.snackMessage.set(ConsumableSnackMessage(snackMessage.message, snackMessage.actionData))
    }
}

open class SnackMessage(val message: String, val actionData: SnackActionData? = null)

data class ConsumableSnackMessage(val msg: String, val actData: SnackActionData? = null) :
    SnackMessage(msg, actData) {
    var consumed = false
}

data class SnackActionData(
    val message: String,
    @ColorInt val color: Int = Color.CYAN,
    val clickListener: () -> Unit
)

@BindingAdapter("snackMessage")
fun View.showSnackbar(snackMessage: SnackMessage?) {
    snackMessage?.let {
        val showSnackFun: () -> Unit = {
            Snackbar.make(this, snackMessage.message, Snackbar.LENGTH_LONG).apply {
                snackMessage.actionData?.let { data ->
                    setAction(data.message) { data.clickListener() }
                    setActionTextColor(data.color)
                }
            }.show()
        }

        if (snackMessage is ConsumableSnackMessage) {
            if (snackMessage.consumed.not()) {
                showSnackFun()
            }
            snackMessage.consumed = true
        } else {
            showSnackFun()
        }
    }
}