[feat] Complete video caching system

app/src/main/java/com/acitelight/aether/model/Comment.kt

@@ -1,5 +1,9 @@
 package com.acitelight.aether.model
 
+import kotlinx.serialization.Serializable
+
+
+@Serializable
 data class Comment(
     val content: String,
     val username: String,

app/src/main/java/com/acitelight/aether/model/DownloadUiModel.kt

@@ -13,7 +13,9 @@ class DownloadItemState(
     progress: Int,
     status: Status,
     downloadedBytes: Long,
-    totalBytes: Long
+    totalBytes: Long,
+    klass: String,
+    vid: String
 ) {
     var fileName by mutableStateOf(fileName)
     var filePath by mutableStateOf(filePath)
@@ -22,4 +24,7 @@ class DownloadItemState(
     var status by mutableStateOf(status)
     var downloadedBytes by mutableStateOf(downloadedBytes)
     var totalBytes by mutableStateOf(totalBytes)
+
+    var klass by mutableStateOf(klass)
+    var vid by mutableStateOf(vid)
 }

app/src/main/java/com/acitelight/aether/model/KeyImage.kt

@@ -1,6 +1,7 @@
 package com.acitelight.aether.model
 
 data class KeyImage(
+    val name: String,
     val url: String,
     val key: String
 )

app/src/main/java/com/acitelight/aether/model/Video.kt

@@ -1,30 +1,59 @@
 package com.acitelight.aether.model
 
 import com.acitelight.aether.service.ApiClient
+import kotlinx.serialization.Serializable
 import java.security.KeyPair
 
-class Video constructor(
+
+@Serializable
+class Video(
     val isLocal: Boolean,
+    val localBase: String,
     val klass: String,
     val id: String,
     val token: String,
     val video: VideoResponse
-    ){
-    fun getCover(): String
-    {
-        return "${ApiClient.getBase()}api/video/$klass/$id/cover?token=$token"
+) {
+    fun getCover(): String {
+        return if (isLocal)
+            "$localBase/videos/$klass/$id/cover.jpg"
+        else
+            "${ApiClient.getBase()}api/video/$klass/$id/cover?token=$token"
     }
 
-    fun getVideo(): String
-    {
-        return "${ApiClient.getBase()}api/video/$klass/$id/av?token=$token"
+    fun getVideo(): String {
+        return if (isLocal)
+            "$localBase/videos/$klass/$id/video.mp4"
+        else
+            "${ApiClient.getBase()}api/video/$klass/$id/av?token=$token"
     }
 
-    fun getGallery(): List<KeyImage>
-    {
-        return video.gallery.map{
-            KeyImage(url = "${ApiClient.getBase()}api/video/$klass/$id/gallery/$it?token=$token", key = "$klass/$id/gallery/$it")
+    fun getGallery(): List<KeyImage> {
+        return if (isLocal)
+            video.gallery.map {
+                KeyImage(
+                    name = it,
+                    url = "$localBase/videos/$klass/$id/gallery/$it",
+                    key = "$klass/$id/gallery/$it"
+                )
+            } else video.gallery.map {
+            KeyImage(
+                name = it,
+                url = "${ApiClient.getBase()}api/video/$klass/$id/gallery/$it?token=$token",
+                key = "$klass/$id/gallery/$it"
+            )
         }
     }
 
+    fun toLocal(localBase: String): Video
+    {
+        return Video(
+            isLocal = true,
+            localBase = localBase,
+            klass = klass,
+            id = id,
+            token = "",
+            video = video
+        )
+    }
 }

app/src/main/java/com/acitelight/aether/model/VideoResponse.kt

@@ -1,5 +1,8 @@
 package com.acitelight.aether.model
 
+import kotlinx.serialization.Serializable
+
+@Serializable
 data class VideoResponse(
     val name: String,
     val duration: Long,