feat: add plugin extensions

Author: entrypointkr

.idea/kotlinc.xml

@@ -1,23 +1,23 @@
 plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.8.21'
+    id 'org.jetbrains.kotlin.jvm' version '1.9.22'
     id 'kr.entree.spigradle' version '2.4.3'
-    id 'org.jetbrains.kotlin.plugin.serialization' version '1.8.21'
+    id 'org.jetbrains.kotlin.plugin.serialization' version '1.9.22'
     id 'com.github.johnrengelman.shadow' version '8.1.1'
     id 'maven-publish'
     id 'signing'
 }
 
 group = 'io.typst'
-version = '1.0.0'
+version = '1.1.0'
 
 repositories {
     mavenCentral()
 }
 
 dependencies {
     compileOnly spigot('1.16.5')
-    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1'
-    testImplementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1'
+    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3'
+    testImplementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3'
     testImplementation 'org.jetbrains.kotlin:kotlin-test'
 }
 

build.gradle

@@ -0,0 +1,27 @@
+package io.typst.bukkit.kotlin.serialization
+
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import org.bukkit.plugin.java.JavaPlugin
+import java.io.File
+
+val JavaPlugin.configJsonFile: File get() = File(dataFolder, "config.json")
+
+val bukkitPluginJson: Json by lazy {
+    Json {
+        encodeDefaults = true
+        prettyPrint = true
+    }
+}
+
+inline fun <reified A> JavaPlugin.readConfigOrCreate(): A {
+    val configFile = configJsonFile
+    if (configFile.isFile) {
+        return bukkitPluginJson.decodeFromString<A>(configJsonFile.readText())
+    } else {
+        configFile.parentFile.mkdirs()
+        val defaultValue = bukkitPluginJson.decodeFromString<A>("{}")
+        configFile.writeText(bukkitPluginJson.encodeToString<A>(defaultValue))
+        return defaultValue
+    }
+}