sample-compose/src/main/java/com/airbnb/lottie/sample/compose/showcase/ShowcasePage.kt

package com.airbnb.lottie.sample.compose.showcase

import androidx.compose.foundation.ScrollableColumn
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.rememberScrollState
import androidx.compose.material.Divider
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.ui.tooling.preview.Preview
import com.airbnb.lottie.sample.compose.ComposeFragment
import com.airbnb.lottie.sample.compose.R
import com.airbnb.lottie.sample.compose.composables.AnimationRow
import com.airbnb.lottie.sample.compose.composables.Loader
import com.airbnb.lottie.sample.compose.composables.Marquee
import com.airbnb.lottie.sample.compose.player.PlayerFragment
import com.airbnb.lottie.sample.compose.ui.LottieTheme
import com.airbnb.lottie.sample.compose.utils.findNavController
import com.airbnb.lottie.sample.compose.utils.mavericksViewModelAndState
import com.airbnb.mvrx.Loading
import com.airbnb.mvrx.Uninitialized
import com.airbnb.mvrx.asMavericksArgs

class ShowcaseFragment : ComposeFragment() {
    @Composable
    override fun root() {
        ShowcasePage()
    }
}


@Composable
fun ShowcasePage() {
    val (_, showcaseState) = mavericksViewModelAndState<ShowcaseViewModel, ShowcaseState>()
    val featuredAnimations = showcaseState.animations
    val scrollState = rememberScrollState()
    val navController = findNavController()
    Box(
        modifier = Modifier.fillMaxSize()
    ) {
        ScrollableColumn(
            scrollState = scrollState
        ) {
            Marquee("Showcase")
            featuredAnimations()?.data?.forEach { data ->
                AnimationRow(
                    title = data.title,
                    previewUrl = data.preview_url ?: "",
                    previewBackgroundColor = data.bgColor,
                ) {
                    val args = PlayerFragment.Args.Url(data.file, backgroundColorStr = data.bg_color)
                    navController.navigate(R.id.player, args.asMavericksArgs())
                }
                Divider(color = Color.LightGray)
            }
        }
        if (featuredAnimations is Uninitialized || featuredAnimations is Loading) {
            Loader(modifier = Modifier.align(Alignment.Center))
        }
    }
}

@Preview(showBackground = true)
@Composable
fun DefaultPreview() {
    LottieTheme {
        ShowcasePage()
    }
}