Added commands and messages modules

commands/.gitignore

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+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

commands/build.gradle.kts

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+plugins {
+    id("java")
+    kotlin("jvm")
+    id("com.github.johnrengelman.shadow") version "7.1.2"
+    id("maven-publish")
+    id("signing")
+}
+
+group = "tech.carcadex"
+val globalArtifactId = "kotlinbukkitkit-commands"
+val globalName = "kotlinbukkitkit-commands"
+
+repositories {
+    mavenCentral()
+    maven {
+        name = "spigotmc-repo"
+        url = uri("https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
+    }
+}
+
+dependencies {
+    compileOnly("org.spigotmc:spigot-api:1.16.5-R0.1-SNAPSHOT")
+    compileOnly(project(":extensions"))
+    implementation(kotlin("reflect"))
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+
+kotlin {
+    jvmToolchain(8)
+}
+
+kotlin {
+    sourceSets.main {
+        kotlin.srcDir("build/generated/ksp/main/kotlin")
+    }
+    sourceSets.test {
+        kotlin.srcDir("build/generated/ksp/test/kotlin")
+    }
+}
+
+java {
+    withJavadocJar()
+    withSourcesJar()
+}
+
+publishing {
+    publications {
+        create<MavenPublication>("maven") {
+            artifactId = globalArtifactId
+            groupId = "tech.carcadex"
+            version = version
+            from(components["java"])
+            versionMapping {
+                usage("java-api") {
+                    fromResolutionOf("runtimeClasspath")
+                }
+                usage("java-runtime") {
+                    fromResolutionResult()
+                }
+            }
+            pom {
+                artifactId = globalArtifactId
+                groupId = "tech.carcadex"
+                version = version
+                name.set(globalArtifactId)
+                description.set(globalArtifactId)
+                url.set("https://github.com/CarcadeX/KotlinBukkitKit")
+
+                licenses {
+                    license {
+                        name.set("MIT")
+                        url.set("https://mit-license.org/")
+                    }
+                }
+                developers {
+                    developer {
+                        id.set("itzRedTea")
+                        name.set("Red Tea")
+                        email.set("red__tea@outlook.com")
+                    }
+                }
+                scm {
+                    connection.set("scm:https://github.com/CarcadeX/$globalName.git")
+                    developerConnection.set("git@github.com:CarcadeX/$globalName.git")
+                    url.set("https://github.com/CarcadeX/KotlinBukkitKit")
+                }
+            }
+
+        }
+    }
+
+
+
+    repositories {
+        maven {
+            val releasesRepoUrl = "https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/"
+            val snapshotsRepoUrl = "https://s01.oss.sonatype.org/content/repositories/snapshots/"
+            url = uri(if (version.toString().endsWith("SNAPSHOT")) snapshotsRepoUrl else releasesRepoUrl)
+            credentials {
+                username = "itzRedTea"
+                password = project.findProperty("password").toString()
+            }
+        }
+
+    }
+}
+
+signing {
+    useGpgCmd()
+    sign(publishing.publications.getByName("maven"))
+}
+
+tasks.shadowJar {
+    dependencies {
+        exclude {
+            it.moduleGroup.startsWith("org.jetbrains")
+        }
+    }
+
+}

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/Polygon.kt

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+package tech.carcadex.kotlinbukkitkit.commands
+
+import org.bukkit.command.CommandSender
+import tech.carcadex.kotlinbukkitkit.commands.annotations.Command
+import tech.carcadex.kotlinbukkitkit.commands.annotations.Permission
+import tech.carcadex.kotlinbukkitkit.commands.manager.CommandManager
+
+typealias Sender = CommandSender
+

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/Aliases.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+annotation class Aliases(val aliases: Array<String>)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/Command.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Command(val name: String)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/Default.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Default()

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/Description.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Description(val desc: String)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/Optional.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Optional()

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/Permission.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Permission(val perm: String)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/SubCommand.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class SubCommand(val name: String)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/TabComplete.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class TabComplete(val complete: Array<String>)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/annotations/Usage.kt

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+package tech.carcadex.kotlinbukkitkit.commands.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Usage(val usage: String)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/exceptions/UnsupportedTypeException.kt

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+package tech.carcadex.kotlinbukkitkit.commands.exceptions
+
+class UnsupportedTypeException(msg: String) : RuntimeException(msg)

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/manager/CommandManager.kt

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+package tech.carcadex.kotlinbukkitkit.commands.manager
+
+import org.bukkit.Bukkit
+import org.bukkit.Material
+import org.bukkit.OfflinePlayer
+import org.bukkit.World
+import org.bukkit.command.CommandExecutor
+import org.bukkit.command.CommandSender
+import org.bukkit.entity.Player
+import org.bukkit.plugin.Plugin
+import tech.carcadex.kotlinbukkitkit.commands.annotations.Command
+import tech.carcadex.kotlinbukkitkit.commands.exceptions.UnsupportedTypeException
+import tech.carcadex.kotlinbukkitkit.extensions.offlinePlayerOrNull
+import kotlin.reflect.KClass
+import kotlin.reflect.KFunction
+import kotlin.reflect.KParameter
+import kotlin.reflect.KType
+import kotlin.reflect.full.callSuspendBy
+import kotlin.reflect.full.findAnnotations
+import kotlin.reflect.full.hasAnnotation
+import kotlin.reflect.full.isSubtypeOf
+import kotlin.reflect.jvm.javaType
+
+class CommandManager(val plugin: Plugin) {
+    private val types = mutableMapOf<String, (String) -> Any?>()
+
+    init {
+        types[CommandSender::class.qualifiedName!!] = { it }
+        types[String::class.qualifiedName!!] = { it }
+        types["java.lang.String"] = { it }
+        types[Int::class.qualifiedName!!] = { it.toInt() }
+        types["java.lang.Integer"] = { it.toInt() }
+        types[UInt::class.qualifiedName!!] = { it.toUInt() }
+        types[Long::class.qualifiedName!!] = { it.toLong() }
+        types["java.lang.Long"] = { it.toInt() }
+        types[ULong::class.qualifiedName!!] = { it.toULong() }
+        types[Short::class.qualifiedName!!] = { it.toShort() }
+        types["java.lang.Short"] = { it.toInt() }
+        types[UShort::class.qualifiedName!!] = { it.toUShort() }
+        types[Float::class.qualifiedName!!] = { it.toFloat() }
+        types["java.lang.Float"] = { it.toInt() }
+        types[Double::class.qualifiedName!!] = { it.toDouble() }
+        types["java.lang.Double"] = { it.toInt() }
+        types[Byte::class.qualifiedName!!] = { it.toByte() }
+        types["java.lang.Byte"] = { it.toInt() }
+        types[UByte::class.qualifiedName!!] = { it.toUByte() }
+        types[Boolean::class.qualifiedName!!] = { it.toBoolean() }
+        types["java.lang.Boolean"] = { it.toInt() }
+
+        types[Player::class.qualifiedName!!] = { Bukkit.getPlayer(it) }
+        types[OfflinePlayer::class.qualifiedName!!] = { offlinePlayerOrNull(it) }
+        types[World::class.qualifiedName!!] = { Bukkit.getWorld(it) }
+        types[Material::class.qualifiedName!!] = { Material.matchMaterial(it) }
+    }
+
+    private fun register(commandExecutor: CommandExecutor, aliases: Array<String>,
+                         desc: String = "", usage: String = "") {
+        CommandRegister.reg(plugin, commandExecutor, aliases, desc, usage);
+    }
+    fun register(f: KFunction<Unit>) {
+        if(f.hasAnnotation<Command>()) {
+            val cmdName = f.findAnnotations<Command>().first().name
+            val argsParsers = mutableListOf<(String) -> Any?>({
+                return@mutableListOf types[CommandSender::class.qualifiedName!!]!!(it)
+            })
+
+            for (argType in f.parameters) {
+                val clazz = Class.forName(argType.type.javaType.typeName)
+                if(argType.type.javaType.typeName in this.types) {
+                    argsParsers.add(this.types[argType.type.javaType.typeName]!!)
+                } else if(!clazz.isEnum) throw UnsupportedTypeException("Type ${argType.type.javaType.typeName} is not supported") else {
+                    argsParsers.add {
+                        for(e in clazz.enumConstants) {
+                            if((e as Enum<*>).name.equals(it, ignoreCase = true)) return@add e;
+                        }
+                        throw NoSuchElementException("No such value in enum")
+                    }
+                }
+            }
+
+            register(CommandExecutor { sender, command, label, args ->
+                val finalArgs = mutableListOf<Any?>(sender)
+                finalArgs.addAll(args.mapIndexed { i, it -> argsParsers[i](it) })
+                val map = mutableMapOf<KParameter, Any?>()
+                var i = 0;
+                for(arg in finalArgs) {
+                    map[f.parameters[i]] = arg
+                    ++i
+                }
+                f.callBy(map)
+                return@CommandExecutor true;
+            }, arrayOf(cmdName))
+        } else throw IllegalArgumentException("It must be a command!")
+    }
+
+    fun type(clazz: KClass<*>, converter: (String) -> Any) {
+        types[clazz.qualifiedName!!] = converter
+    }
+}

commands/src/main/kotlin/tech/carcadex/kotlinbukkitkit/commands/manager/CommandRegister.kt

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+package tech.carcadex.kotlinbukkitkit.commands.manager
+
+import org.bukkit.Bukkit
+import org.bukkit.command.*
+import org.bukkit.plugin.Plugin
+import java.util.*
+
+
+class CommandRegister(
+    aliases: Array<String>,
+    desc: String?,
+    usage: String?,
+    protected val owner: CommandExecutor,
+    protected val registeredWith: Any,
+    val pl: Plugin
+) : Command(aliases[0], desc!!, usage!!, Arrays.asList(*aliases)), PluginIdentifiableCommand {
+
+
+    override fun execute(sender: CommandSender, label: String, args: Array<String>): Boolean {
+        if (!testPermission(sender)) {
+            return true
+        }
+        return if (owner.onCommand(sender, this, label, args)) {
+            true
+        } else {
+            sender.sendMessage(usageMessage)
+            false
+        }
+    }
+
+    companion object {
+        fun reg(plugin: Plugin, executor: CommandExecutor, aliases: Array<String>, desc: String?, usage: String?) {
+            if(aliases.size < 1) throw IllegalArgumentException("Could not found name")
+            try {
+                val reg = CommandRegister(aliases, desc, usage, executor, Any(), plugin)
+                val field = Bukkit.getServer().javaClass.getDeclaredField("commandMap")
+                field.isAccessible = true
+                val map = field[Bukkit.getServer()] as CommandMap
+                map.register(plugin.description.name, reg)
+            } catch (e: Exception) {
+                e.printStackTrace()
+            }
+        }
+    }
+
+    override fun getPlugin(): Plugin = pl
+}