add post preview

features/posts/common/src/commonMain/kotlin/dev/inmo/postssystem/features/posts/common/Post.kt

@@ -0,0 +1,47 @@
+package dev.inmo.postssystem.features.posts.common
+
+import com.soywiz.klock.DateTime
+import dev.inmo.postssystem.features.common.common.DateTimeSerializer
+import dev.inmo.postssystem.features.content.common.ContentId
+import kotlinx.serialization.Serializable
+import kotlin.jvm.JvmInline
+
+/**
+ * Identifier of [RegisteredPost] in system
+ */
+@Serializable
+@JvmInline
+value class PostId(val long: Long) {
+    override fun toString(): String = long.toString()
+}
+typealias ContentIds = List<ContentId>
+
+/**
+ * Base interface for creating of new post
+ *
+ * @see NewPost
+ * @see RegisteredPost
+ */
+@Serializable
+sealed class Post {
+    abstract val content: ContentIds
+}
+
+/**
+ * This type of [Post] should be used in case you wish to register new post in system
+ */
+@Serializable
+data class NewPost(
+    override val content: ContentIds
+) : Post()
+
+/**
+ * Registered [Post]
+ */
+@Serializable
+data class RegisteredPost(
+    val id: PostId,
+    override val content: ContentIds,
+    @Serializable(DateTimeSerializer::class)
+    val creationDate: DateTime
+) : Post()

features/posts/common/src/main/AndroidManifest.xml

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+<manifest package="dev.inmo.postssystem.features.posts.common"/>