[chore] #176 AdvertisementScreen

app/src/main/java/org/sopt/dateroad/presentation/ui/advertisement/AdvertisementScreen.kt

@@ -1,10 +1,33 @@
 package org.sopt.dateroad.presentation.ui.advertisement
 
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.layout.onGloballyPositioned
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.LocalLifecycleOwner
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.lifecycle.flowWithLifecycle
+import com.google.accompanist.pager.ExperimentalPagerApi
+import com.google.accompanist.pager.PagerState
+import org.sopt.dateroad.presentation.ui.advertisement.component.AdvertisementDetail
+import org.sopt.dateroad.presentation.ui.component.pager.DateRoadImagePager
+import org.sopt.dateroad.presentation.ui.component.topbar.DateRoadScrollResponsiveTopBar
+import org.sopt.dateroad.presentation.ui.component.view.DateRoadErrorView
+import org.sopt.dateroad.presentation.ui.component.view.DateRoadIdleView
+import org.sopt.dateroad.presentation.ui.component.view.DateRoadLoadingView
+import org.sopt.dateroad.presentation.util.view.LoadState
+import org.sopt.dateroad.ui.theme.DateRoadTheme
 
 @Composable
 fun AdvertisementRoute(
@@ -14,11 +37,84 @@ fun AdvertisementRoute(
 ) {
     val uiState by viewmodel.uiState.collectAsStateWithLifecycle()
     val lifecycleOwner = LocalLifecycleOwner.current
+
+    LaunchedEffect(viewmodel.sideEffect, lifecycleOwner) {
+        viewmodel.sideEffect.flowWithLifecycle(lifecycle = lifecycleOwner.lifecycle)
+            .collect { advertisementSideEffect ->
+                when (advertisementSideEffect) {
+                    is AdvertisementContract.AdvertisementSideEffect.PopBackStack -> popBackStack()
+                }
+            }
+    }
+
+    LaunchedEffect(Unit) {
+        viewmodel.fetchAdvertisementDetail(advertisementId = advertisementId)
+    }
+
+    when (uiState.loadState) {
+        LoadState.Idle -> DateRoadIdleView()
+
+        LoadState.Loading -> DateRoadLoadingView()
+
+        LoadState.Success -> AdvertisementScreen(
+            advertisementUiState = uiState,
+            onTopBarIconClicked = { viewmodel.setSideEffect(AdvertisementContract.AdvertisementSideEffect.PopBackStack) }
+        )
+
+        LoadState.Error -> DateRoadErrorView()
+    }
 }
 
+@OptIn(ExperimentalPagerApi::class)
 @Composable
 fun AdvertisementScreen(
-
+    advertisementUiState: AdvertisementContract.AdvertisementUiState,
+    onTopBarIconClicked: () -> Unit
 ) {
+    var imageHeight by remember { mutableIntStateOf(0) }
+
+    val scrollState = rememberLazyListState()
+    val isScrollResponsiveDefault by remember {
+        derivedStateOf {
+            scrollState.firstVisibleItemIndex == 0 && scrollState.firstVisibleItemScrollOffset < imageHeight
+        }
+    }
+
+    Box(modifier = Modifier.fillMaxSize()) {
+        LazyColumn(
+            state = scrollState,
+            modifier = Modifier
+                .fillMaxSize()
+                .background(DateRoadTheme.colors.white)
+        ) {
+            with(advertisementUiState.advertisementDetail) {
+                item {
+                    DateRoadImagePager(
+                        modifier = Modifier
+                            .onGloballyPositioned { coordinates ->
+                                imageHeight = coordinates.size.height
+                            },
+                        pagerState = PagerState(),
+                        images = images,
+                        userScrollEnabled = true,
+                        like = null
+                    )
+                }
+
+                item {
+                    AdvertisementDetail(
+                        advertisementTagTitle = advertisementTagTitle,
+                        createAt = createAt,
+                        title = title,
+                        description = description
+                    )
+                }
+            }
+        }
 
+        DateRoadScrollResponsiveTopBar(
+            isDefault = isScrollResponsiveDefault,
+            onLeftIconClick = onTopBarIconClicked
+        )
+    }
 }