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https://github.com/msfjarvis/compose-lobsters
synced 2025-08-14 19:57:04 +05:30
refactor(database): move SavedPostSerializer to core
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5 changed files with 7 additions and 3 deletions
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@ -9,7 +9,6 @@ import dev.msfjarvis.claw.gradle.addTestDependencies
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plugins {
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id("dev.msfjarvis.claw.android-library")
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id("dev.msfjarvis.claw.kotlin-android")
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alias(libs.plugins.kotlin.serialization)
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alias(libs.plugins.anvil)
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alias(libs.plugins.whetstone)
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}
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@ -24,9 +23,7 @@ dependencies {
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implementation(libs.sqldelight.androidDriver)
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implementation(libs.sqldelight.primitiveAdapters)
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implementation(libs.sqlite.android)
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implementation(libs.kotlinx.serialization.core)
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testImplementation(libs.sqldelight.jvmDriver)
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testImplementation(libs.kotlinx.serialization.json)
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addTestDependencies(project)
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}
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@ -1,97 +0,0 @@
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/*
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* Copyright © 2023 Harsh Shandilya.
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* Use of this source code is governed by an MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT.
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*/
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package dev.msfjarvis.claw.database
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import dev.msfjarvis.claw.database.local.SavedPost
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import kotlinx.serialization.ExperimentalSerializationApi
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import kotlinx.serialization.KSerializer
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import kotlinx.serialization.builtins.ListSerializer
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import kotlinx.serialization.builtins.serializer
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import kotlinx.serialization.descriptors.SerialDescriptor
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import kotlinx.serialization.descriptors.buildClassSerialDescriptor
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import kotlinx.serialization.descriptors.element
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import kotlinx.serialization.encoding.CompositeDecoder
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import kotlinx.serialization.encoding.Decoder
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import kotlinx.serialization.encoding.Encoder
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import kotlinx.serialization.encoding.decodeStructure
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import kotlinx.serialization.encoding.encodeStructure
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@OptIn(ExperimentalSerializationApi::class)
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object SavedPostSerializer : KSerializer<SavedPost> {
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private val delegateSerializer = ListSerializer(String.serializer())
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override val descriptor: SerialDescriptor =
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buildClassSerialDescriptor("SavedPost") {
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element<String>("shortId")
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element<String>("title")
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element<String>("url")
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element<String>("createdAt")
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element<Int?>("commentCount", isOptional = true)
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element<String>("commentsUrl")
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element<String>("submitterName")
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element<String>("submitterAvatarUrl")
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element<List<String>>("tags")
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element<String>("description")
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}
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override fun deserialize(decoder: Decoder): SavedPost {
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return decoder.decodeStructure(descriptor) {
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var shortId = ""
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var title = ""
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var url = ""
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var createdAt = ""
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var commentCount: Int? = null
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var commentsUrl = ""
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var submitterName = ""
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var submitterAvatarUrl = ""
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var tags = emptyList<String>()
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var description = ""
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while (true) {
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when (val index = decodeElementIndex(descriptor)) {
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0 -> shortId = decodeStringElement(descriptor, 0)
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1 -> title = decodeStringElement(descriptor, 1)
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2 -> url = decodeStringElement(descriptor, 2)
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3 -> createdAt = decodeStringElement(descriptor, 3)
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4 -> commentCount = decodeNullableSerializableElement(descriptor, 4, Int.serializer())
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5 -> commentsUrl = decodeStringElement(descriptor, 5)
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6 -> submitterName = decodeStringElement(descriptor, 6)
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7 -> submitterAvatarUrl = decodeStringElement(descriptor, 7)
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8 -> tags = decodeSerializableElement(descriptor, 8, delegateSerializer)
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9 -> description = decodeStringElement(descriptor, 9)
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CompositeDecoder.DECODE_DONE -> break
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else -> error("Unexpected index: $index")
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}
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}
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SavedPost(
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shortId = shortId,
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title = title,
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url = url,
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createdAt = createdAt,
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commentCount = commentCount,
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commentsUrl = commentsUrl,
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submitterName = submitterName,
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submitterAvatarUrl = submitterAvatarUrl,
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tags = tags,
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description = description,
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)
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}
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}
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override fun serialize(encoder: Encoder, value: SavedPost) {
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encoder.encodeStructure(descriptor) {
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encodeStringElement(descriptor, 0, value.shortId)
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encodeStringElement(descriptor, 1, value.title)
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encodeStringElement(descriptor, 2, value.url)
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encodeStringElement(descriptor, 3, value.createdAt)
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encodeNullableSerializableElement(descriptor, 4, Int.serializer(), value.commentCount)
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encodeStringElement(descriptor, 5, value.commentsUrl)
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encodeStringElement(descriptor, 6, value.submitterName)
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encodeStringElement(descriptor, 7, value.submitterAvatarUrl)
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encodeSerializableElement(descriptor, 8, delegateSerializer, value.tags)
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encodeStringElement(descriptor, 9, value.description)
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}
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}
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}
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@ -1,61 +0,0 @@
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/*
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* Copyright © 2023 Harsh Shandilya.
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* Use of this source code is governed by an MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT.
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*/
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package dev.msfjarvis.claw.database
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import com.google.common.truth.Truth.assertThat
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import dev.msfjarvis.claw.database.local.SavedPost
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import java.io.File
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import kotlinx.serialization.ExperimentalSerializationApi
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import kotlinx.serialization.json.Json
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import kotlinx.serialization.json.JsonNamingStrategy
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import org.junit.jupiter.api.Test
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@OptIn(ExperimentalSerializationApi::class)
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class SavedPostSerializerTest {
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private val json = Json {
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ignoreUnknownKeys = true
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namingStrategy = JsonNamingStrategy.SnakeCase
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}
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private val text = getJson()
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@Test
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fun serialize() {
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val encoded = json.encodeToString(SavedPostSerializer, SAVED_POST)
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assertThat(encoded).isNotEmpty()
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assertThat(encoded).isEqualTo(text)
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}
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@Test
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fun deserialize() {
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val decoded = json.decodeFromString(SavedPostSerializer, text)
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assertThat(decoded).isEqualTo(SAVED_POST)
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}
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private fun getJson(): String {
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// Load the JSON response
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val uri = javaClass.classLoader!!.getResource("saved_post.json")
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val file = File(uri.path)
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return String(file.readBytes())
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}
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private companion object {
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private val SAVED_POST =
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SavedPost(
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title = "Fun Format Friday: You now have a super computer. What next?",
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shortId = "nbigsf",
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url = "",
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createdAt = "2023-05-04T23:43:50.000-05:00",
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commentCount = 13,
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commentsUrl = "https://lobste.rs/s/nbigsf/fun_format_friday_you_now_have_super",
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submitterName = "LenFalken",
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submitterAvatarUrl = "/avatars/LenFalken-100.png",
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tags = listOf("ask", "programming"),
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description =
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"<p>You suddenly have in your possession a super computer. What comes next? What projects are suddenly possible for you? What performance tests can you now explore?</p>\n",
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)
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}
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}
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@ -1 +0,0 @@
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{"short_id":"nbigsf","title":"Fun Format Friday: You now have a super computer. What next?","url":"","created_at":"2023-05-04T23:43:50.000-05:00","comment_count":13,"comments_url":"https://lobste.rs/s/nbigsf/fun_format_friday_you_now_have_super","submitter_name":"LenFalken","submitter_avatar_url":"/avatars/LenFalken-100.png","tags":["ask","programming"],"description":"<p>You suddenly have in your possession a super computer. What comes next? What projects are suddenly possible for you? What performance tests can you now explore?</p>\n"}
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