package com.rtnmapsgl

import android.os.Handler
import android.os.Looper
import android.util.Log
import androidx.compose.runtime.mutableStateOf
import androidx.lifecycle.ViewModel
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.LiveData
import com.rtnmapsgl.interop.JSBuilder
import com.rtnmapsgl.model.Legend
import com.rtnmapsgl.model.MapLayer

/*
 * Description: ViewModel
 */
class MainViewModel : ViewModel() {

    var mapLayers = MapLayer.listAll()
    var jsBuilder: JSBuilder? = null


    private val _isWebViewReady = MutableLiveData<Boolean>()
    val isWebViewReady: LiveData<Boolean> get() = _isWebViewReady
    fun setWebViewReady(ready: Boolean) {
        // Check if current thread is the main thread, if not, switch to it
        if (Looper.getMainLooper() == Looper.myLooper()) {
            _isWebViewReady.postValue(ready)
        } else {
            val handler = Handler(Looper.getMainLooper())
            handler.post {
                _isWebViewReady.postValue(ready)
            }
        }
    }

    val openMenu = mutableStateOf(false)
    val openDialog = mutableStateOf(false)
    val openSnackbar = mutableStateOf(false)
    val openProgress = mutableStateOf(false)
    val openAnimateControl = mutableStateOf(false)
    val animateTime = mutableStateOf("00:00:00")
    val animateState = mutableStateOf<TimelineState>(TimelineState.Stop)
    val openLegends = mutableStateOf<List<Legend>>(emptyList())
    val msg = mutableStateOf<String>("")

    val showSnackbar: (open: Boolean, msg: String?) -> Unit = { isOpen, str ->
        openSnackbar.value = isOpen
        msg.value =
            str ?: ""
    }

    val updateTime: (time: String) -> Unit = {
        animateTime.value = it
    }

    val showProgress: (show: Boolean) -> Unit = {
        openProgress.value = it
    }

    fun hasSelectedLayer():Boolean {
        for (layer in mapLayers) {
            if (layer.isEnabled)
                return true
        }
        return false
    }
}

sealed class TimelineState {
    object Play : TimelineState()
    object Stop : TimelineState()
}