feat: update supported version handling

fixes #13

modrinth is phasing out featured versions, so i made it so now it just compares `date_published` for every version instead of getting featured versions

Author: intergrav

src/main/kotlin/io/github/gaming32/additiveinstaller/Modpack.kt

@@ -29,11 +29,16 @@ class Modpack(val id: String) {
         ?.readBytes()
         ?.toBase64()
         ?.prefix("data:image/png;base64,")
-    val supportedMcVersions = buildSet {
-        for ((key, value) in versions) {
-            if (value.values.asSequence().flatMap { it.values }.any(PackVersion::isSupported)) {
-                add(key)
-            }
-        }
+
+    private val latestVersionForMcFull = versions.mapValues { (_, packVersions) ->
+        packVersions.values.flatMap { it.values }.maxBy { it.datePublished }
     }
+
+    val latestVersionForMc = latestVersionForMcFull.mapValues { it.value.packVersion }
+
+    private val globalLatestPackVersion = latestVersionForMcFull.values.maxBy { it.datePublished }.packVersion
+
+    val supportedMcVersions = latestVersionForMcFull
+        .filterValues { it.packVersion == globalLatestPackVersion }
+        .keys
 }

src/main/kotlin/io/github/gaming32/additiveinstaller/PackVersion.kt

@@ -2,11 +2,13 @@ package io.github.gaming32.additiveinstaller
 
 import com.google.gson.JsonObject
 import java.nio.file.Path
+import java.time.Instant
 
 class PackVersion(val modpack: Modpack, val data: JsonObject) {
     val packVersion: String
     val gameVersion: String
     val loader: Loader
+    val datePublished: Instant
 
     init {
         val versionNumber = data["version_number"].asString
@@ -23,12 +25,12 @@ class PackVersion(val modpack: Modpack, val data: JsonObject) {
             gameVersion = versionNumber.substringAfter('+').substringBeforeLast('.')
             versionNumber.substringAfterLast('.')
         }.uppercase().let(Loader::valueOf)
+        datePublished = Instant.parse(data["date_published"].asString)
     }
 
     val launcherFolderPath = "${modpack.id}/$packVersion-$gameVersion-$loader"
     val launcherVersionId = "${modpack.id}-$packVersion-$gameVersion-$loader"
     val launcherProfileId = "${modpack.id}-$gameVersion-$loader"
-    val isSupported = data["featured"].asBoolean
 
     fun install(destination: Path, progressHandler: ProgressHandler) =
         PackInstaller(this, destination, progressHandler)

src/main/kotlin/io/github/gaming32/additiveinstaller/main.kt

@@ -65,10 +65,8 @@ fun main() {
                 selectedPack.versions[gameVersion]
                     ?.keys
                     ?.forEach(packVersion::addItem)
-                selectedPack.versions[gameVersion]
-                    ?.entries
-                    ?.first { it.value.values.any(PackVersion::isSupported) }
-                    ?.let { packVersion.selectedItem = it.key }
+                selectedPack.latestVersionForMc[gameVersion]
+                    ?.let { packVersion.selectedItem = it }
             }
         }
 
@@ -78,10 +76,10 @@ fun main() {
             val loaders = selectedPack.versions[gameVersion]
                 ?.get(selectedVersion) ?: return@addItemListener
             loaderSelector.removeAllItems()
-            for ((loader, version) in loaders) {
-                if (version.isSupported || includeUnsupportedMinecraft.isSelected) {
-                    loaderSelector.addItem(loader.name.lowercase().capitalize())
-                }
+            for ((loader, _) in loaders) {
+                loaderSelector.addItem(
+                    loader.name.lowercase().replaceFirstChar { it.titlecase() }
+                )
             }
         }
 
@@ -90,9 +88,7 @@ fun main() {
             minecraftVersion.removeAllItems()
             val all = includeUnsupportedMinecraft.isSelected
             val supported = selectedPack.supportedMcVersions
-            selectedPack.versions
-                .keys
-                .asSequence()
+            selectedPack.versions.keys
                 .filter { all || it in supported }
                 .forEach(minecraftVersion::addItem)
             if (mcVersion != null) {