Initial commitHEADmaster

15 files changed, 540 insertions, 0 deletions

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..79aaadf
--- /dev/null
+++ b/README.md
@@ -0,0 +1,30 @@
+## JDA Commander
+
+This is a proof of concept project to demonstrate using [jcommander] with [JDA]
+
+### Building
+This project uses [Gradle] for building and dependency management.
+
+ - You can either directly run the project using `./gradlew run`.
+ - You can create a zip/tar using `./gradlew distZip` or `./gradlew distTar` respectively.
+     - Those can be found in `build/distributions`
+     - Those have Windows / Linux scripts to launch the project in the bin folder
+
+#### Versioning / Dependencies
+
+This project uses [Refresh Versions] to manage dependencies.
+
+
+Run `./gradlew refreshVersions` to check for updates. Then open `versions.properties` and bump versions where appropriate. After that reload your project and run `./gradlew refreshVersions` again to make sure there won't be any git conflicts.
+
+When introducing new dependencies make sure you use the `"_"` version identifier, so it will be managed by the plugin.
+
+### Token
+Set the environment variable `DISCORD_TOKEN` to a bot token obtained from Discord's [Developer Panel][discord].
+
+
+[discord]: https://discord.com/developers/applications/me
+[refresh versions]: https://google.com
+[gradle]: https://gradle.org
+[jda]: https://github.com/DV8FromTheWorld/JDA
+[jcommander]: https://jcommander.org/
diff --git a/build.gradle.kts b/build.gradle.kts
new file mode 100644
index 0000000..fbe5623
--- /dev/null
+++ b/build.gradle.kts
@@ -0,0 +1,25 @@
+plugins {
+	kotlin("jvm")
+	application
+}
+
+group = "com.romangraef"
+version = "1.0-SNAPSHOT"
+
+repositories {
+	jcenter()
+	mavenCentral()
+}
+
+dependencies {
+	implementation(kotlin("stdlib-jdk8"))
+	implementation("com.beust", "jcommander", "_")
+	implementation("net.dv8tion", "JDA", "_")
+	implementation("org.reflections", "reflections", "_")
+
+	runtimeOnly("org.slf4j", "slf4j-simple", "_")
+}
+
+application {
+	mainClassName = "com.romangraef.jdacommander.StartKt"
+}
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..f3d88b1
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.jar
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..1b16c34
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100644
index 0000000..2fe81a7
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,183 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..9618d8d
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,100 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..5e4b233
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,33 @@
+import de.fayard.dependencies.bootstrapRefreshVersionsAndDependencies
+
+pluginManagement {
+	repositories {
+		mavenLocal()
+		gradlePluginPortal()
+		maven(url = "https://dl.bintray.com/kotlin/kotlin-eap")
+	}
+}
+
+buildscript {
+	repositories {
+		mavenLocal()
+		gradlePluginPortal()
+		maven(url = "https://dl.bintray.com/kotlin/kotlin-eap")
+	}
+	dependencies.classpath("de.fayard:dependencies:0.5.8")
+}
+
+bootstrapRefreshVersionsAndDependencies()
+
+plugins {
+	id("com.gradle.enterprise").version("3.1.1")
+}
+
+gradleEnterprise {
+	buildScan {
+		termsOfServiceUrl = "https://gradle.com/terms-of-service"
+		termsOfServiceAgree = "yes"
+	}
+}
+rootProject.name = "jdacommander"
+
diff --git a/src/main/kotlin/com/romangraef/jdacommander/BaseInformation.kt b/src/main/kotlin/com/romangraef/jdacommander/BaseInformation.kt
new file mode 100644
index 0000000..fdf4a67
--- /dev/null
+++ b/src/main/kotlin/com/romangraef/jdacommander/BaseInformation.kt
@@ -0,0 +1,8 @@
+package com.romangraef.jdacommander
+
+import com.beust.jcommander.Parameter
+
+class BaseInformation {
+	@Parameter(names = ["-p", "--private", "--direct", "--dm"])
+	var sendToDM: Boolean = false
+}
diff --git a/src/main/kotlin/com/romangraef/jdacommander/Command.kt b/src/main/kotlin/com/romangraef/jdacommander/Command.kt
new file mode 100644
index 0000000..a5178e6
--- /dev/null
+++ b/src/main/kotlin/com/romangraef/jdacommander/Command.kt
@@ -0,0 +1,8 @@
+package com.romangraef.jdacommander
+
+@Retention(AnnotationRetention.RUNTIME)
+@Target(AnnotationTarget.CLASS)
+annotation class Command
+	(
+	val value: String
+)
\ No newline at end of file
diff --git a/src/main/kotlin/com/romangraef/jdacommander/ICommand.kt b/src/main/kotlin/com/romangraef/jdacommander/ICommand.kt
new file mode 100644
index 0000000..99fee95
--- /dev/null
+++ b/src/main/kotlin/com/romangraef/jdacommander/ICommand.kt
@@ -0,0 +1,14 @@
+package com.romangraef.jdacommander
+
+import net.dv8tion.jda.api.entities.Message
+import net.dv8tion.jda.api.entities.MessageChannel
+import net.dv8tion.jda.api.requests.RestAction
+
+abstract class ICommand {
+	lateinit var base: BaseInformation
+	lateinit var message: Message
+	abstract fun run()
+	val channel get() = message.channel
+	val jda get() = message.jda
+	val responseChannel: RestAction<out MessageChannel> get() = if (base.sendToDM) message.author.openPrivateChannel() else SyncRestAction(jda, channel)
+}
diff --git a/src/main/kotlin/com/romangraef/jdacommander/SyncRestAction.kt b/src/main/kotlin/com/romangraef/jdacommander/SyncRestAction.kt
new file mode 100644
index 0000000..27b0b10
--- /dev/null
+++ b/src/main/kotlin/com/romangraef/jdacommander/SyncRestAction.kt
@@ -0,0 +1,28 @@
+package com.romangraef.jdacommander
+
+import java.util.concurrent.CompletableFuture
+import java.util.function.BooleanSupplier
+import java.util.function.Consumer
+import net.dv8tion.jda.api.JDA
+import net.dv8tion.jda.api.requests.RestAction
+
+class SyncRestAction<I>(private val jda: JDA, private val value: I) : RestAction<I> {
+	override fun getJDA(): JDA = jda
+
+	override fun setCheck(checks: BooleanSupplier?): RestAction<I> {
+		// No need for last Second checks.
+		// We don't execute HTTP requests anyways.
+		return this
+	}
+
+	override fun queue(success: Consumer<in I>?, failure: Consumer<in Throwable>?) {
+		success?.accept(value)
+	}
+
+	override fun complete(shouldQueue: Boolean): I = value
+
+	override fun submit(shouldQueue: Boolean): CompletableFuture<I> =
+		CompletableFuture.supplyAsync { value }
+
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/romangraef/jdacommander/commands/EchoCommand.kt b/src/main/kotlin/com/romangraef/jdacommander/commands/EchoCommand.kt
new file mode 100644
index 0000000..edf50ba
--- /dev/null
+++ b/src/main/kotlin/com/romangraef/jdacommander/commands/EchoCommand.kt
@@ -0,0 +1,20 @@
+package com.romangraef.jdacommander.commands
+
+import com.beust.jcommander.Parameter
+import com.romangraef.jdacommander.Command
+import com.romangraef.jdacommander.ICommand
+
+@Command("echo")
+class EchoCommand : ICommand() {
+	@Parameter(names = ["-c", "--caps", "--capitalize"], description = "Convert the text to upper case")
+	var caps: Boolean = false
+
+	@Parameter(description = "Text to echo back")
+	lateinit var texts: List<String>
+	val text get() = texts.joinToString(" ")
+
+	override fun run() = responseChannel.queue {
+		it.sendMessage(if (caps) text.toUpperCase() else text).queue()
+	}
+
+}
diff --git a/src/main/kotlin/com/romangraef/jdacommander/commands/HelpCommand.kt b/src/main/kotlin/com/romangraef/jdacommander/commands/HelpCommand.kt
new file mode 100644
index 0000000..63a69fc
--- /dev/null
+++ b/src/main/kotlin/com/romangraef/jdacommander/commands/HelpCommand.kt
@@ -0,0 +1,23 @@
+package com.romangraef.jdacommander.commands
+
+import com.beust.jcommander.Parameter
+import com.romangraef.jdacommander.Command
+import com.romangraef.jdacommander.ICommand
+
+@Command("help")
+class HelpCommand : ICommand() {
+
+	@Parameter(description = "Help Topic")
+	var helpTopic: String? = null
+
+	override fun run() = responseChannel.queue {
+		it.sendMessage(
+			if (helpTopic == null) {
+				"Helping...."
+			} else {
+				"Helping on topic $helpTopic"
+			}
+		).queue()
+	}
+
+}
diff --git a/src/main/kotlin/com/romangraef/jdacommander/start.kt b/src/main/kotlin/com/romangraef/jdacommander/start.kt
new file mode 100644
index 0000000..465d79c
--- /dev/null
+++ b/src/main/kotlin/com/romangraef/jdacommander/start.kt
@@ -0,0 +1,45 @@
+package com.romangraef.jdacommander
+
+import com.beust.jcommander.JCommander
+import net.dv8tion.jda.api.JDABuilder
+import net.dv8tion.jda.api.events.message.MessageReceivedEvent
+import net.dv8tion.jda.api.hooks.ListenerAdapter
+import org.reflections.Reflections
+
+fun loadCommands(packageName: String): Map<String, Class<out ICommand>> {
+	val reflections = Reflections(packageName)
+	return reflections.getTypesAnnotatedWith(Command::class.java)
+		.map {
+			println(it)
+			it
+		}
+		.filter { ICommand::class.java.isAssignableFrom(it) }
+		.map {
+			it.getAnnotation(Command::class.java).value to (it as Class<out ICommand>)
+		}.toMap()
+}
+
+fun main() {
+	val allCommands = loadCommands("com.romangraef.jdacommander.commands")
+	JDABuilder.createDefault(System.getenv("DISCORD_TOKEN"))
+		.addEventListeners(object : ListenerAdapter() {
+			override fun onMessageReceived(event: MessageReceivedEvent) {
+				val text = event.message.contentRaw
+				if (!text.startsWith("!")) return
+				val jCommander = JCommander()
+				val bi = BaseInformation()
+				allCommands.forEach { (name, `class`) ->
+					jCommander.addCommand(name, `class`.newInstance())
+				}
+				jCommander.addObject(bi)
+				jCommander.parse(*text.substring(1).split("\\s+".toRegex()).toTypedArray())
+				val parsedCommand = jCommander.parsedCommand
+				jCommander.findCommandByAlias(parsedCommand).objects.filterIsInstance<ICommand>().forEach {
+					it.base = bi
+					it.message = event.message
+					it.run()
+				}
+			}
+		})
+		.build()
+}
\ No newline at end of file
diff --git a/versions.properties b/versions.properties
new file mode 100644
index 0000000..ff2a180
--- /dev/null
+++ b/versions.properties
@@ -0,0 +1,18 @@
+## suppress inspection "SpellCheckingInspection" for whole file
+##
+## Dependencies and Plugin versions with their available updates
+## Generated by $ ./gradlew refreshVersions
+## Please, don't put extra comments in that file yet, keeping them is not supported yet.
+
+version.com.beust..jcommander=1.80
+##                # available=2.0.0-RC1
+
+version.kotlin=1.4.0
+
+version.net.dv8tion..JDA=4.2.0_194
+
+version.org.reflections..reflections=0.9.12
+
+version.org.slf4j..slf4j-simple=1.7.30
+##                  # available=1.8.0-beta4
+##                  # available=2.0.0-alpha1