feat: Add CLI

build.gradle.kts

@@ -7,12 +7,18 @@ plugins {
 group = "app.revanced"
 
 application {
-    mainClass.set("app.revanced.api.ApplicationKt")
+    mainClass.set("app.revanced.api.command.MainCommandKt")
 
     val isDevelopment: Boolean = project.ext.has("development")
     applicationDefaultJvmArgs = listOf("-Dio.ktor.development=$isDevelopment")
 }
 
+tasks {
+    processResources {
+        expand("projectVersion" to project.version)
+    }
+}
+
 repositories {
     mavenCentral()
 }
@@ -44,6 +50,7 @@ dependencies {
     implementation(libs.dotenv.kotlin)
     implementation(libs.ktoml.core)
     implementation(libs.ktoml.file)
+    implementation(libs.picocli)
 
     testImplementation(libs.ktor.server.tests)
     testImplementation(libs.kotlin.test.junit)

gradle/libs.versions.toml

@@ -7,6 +7,7 @@ koin="3.5.3"
 dotenv="6.4.1"
 ktor = "2.3.7"
 ktoml = "0.5.1"
+picocli = "4.7.3"
 
 [libraries]
 ktor-client-core = { module = "io.ktor:ktor-client-core" }
@@ -37,6 +38,7 @@ ktor-server-tests = { module = "io.ktor:ktor-server-tests" }
 kotlin-test-junit = { module = "org.jetbrains.kotlin:kotlin-test-junit", version.ref = "kotlin" }
 ktoml-core = { module = "com.akuleshov7:ktoml-core", version.ref = "ktoml" }
 ktoml-file = { module = "com.akuleshov7:ktoml-file", version.ref = "ktoml" }
+picocli = { module = "info.picocli:picocli", version.ref = "picocli" }
 
 [plugins]
 serilization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }

src/main/kotlin/app/revanced/api/Application.kt

@@ -1,22 +0,0 @@
-package app.revanced.api
-
-import app.revanced.api.plugins.*
-import io.github.cdimascio.dotenv.Dotenv
-import io.ktor.server.application.*
-import io.ktor.server.engine.*
-import io.ktor.server.netty.*
-
-fun main() {
-    embeddedServer(Netty, port = 8080, host = "0.0.0.0", configure = {
-        connectionGroupSize = 1
-        workerGroupSize = 1
-        callGroupSize = 1
-    }) {
-        configureHTTP()
-        configureSerialization()
-        configureDatabases()
-        configureSecurity()
-        configureDependencies()
-        configureRouting()
-    }.start(wait = true)
-}

src/main/kotlin/app/revanced/api/command/MainCommand.kt

@@ -0,0 +1,34 @@
+package app.revanced.api.command
+
+import picocli.CommandLine
+import java.util.*
+
+fun main(args: Array<String>) {
+    CommandLine(MainCommand).execute(*args).let(System::exit)
+}
+
+private object CLIVersionProvider : CommandLine.IVersionProvider {
+    override fun getVersion() =
+        arrayOf(
+            MainCommand::class.java.getResourceAsStream(
+                "/app/revanced/api/version.properties",
+            )?.use { stream ->
+                Properties().apply {
+                    load(stream)
+                }.let {
+                    "ReVanced API v${it.getProperty("version")}"
+                }
+            } ?: "ReVanced API",
+        )
+}
+
+@CommandLine.Command(
+    name = "revanced-api",
+    description = ["API server for ReVanced"],
+    mixinStandardHelpOptions = true,
+    versionProvider = CLIVersionProvider::class,
+    subcommands = [
+        StartAPICommand::class,
+    ],
+)
+private object MainCommand

src/main/kotlin/app/revanced/api/command/StartAPICommand.kt

@@ -0,0 +1,39 @@
+package app.revanced.api.command
+
+import app.revanced.api.plugins.*
+import io.ktor.server.engine.*
+import io.ktor.server.netty.*
+import picocli.CommandLine
+
+@CommandLine.Command(
+    name = "start",
+    description = ["Start the API server"],
+)
+internal object StartAPICommand : Runnable {
+    @CommandLine.Option(
+        names = ["-h", "--host"],
+        description = ["The host address to bind to."],
+    )
+    private var host: String = "0.0.0.0"
+
+    @CommandLine.Option(
+        names = ["-p", "--port"],
+        description = ["The port to listen on."],
+    )
+    private var port: Int = 8080
+
+    override fun run() {
+        embeddedServer(Netty, port, host, configure = {
+            connectionGroupSize = 1
+            workerGroupSize = 1
+            callGroupSize = 1
+        }) {
+            configureHTTP()
+            configureSerialization()
+            configureDatabases()
+            configureSecurity()
+            configureDependencies()
+            configureRouting()
+        }.start(wait = true)
+    }
+}

src/main/kotlin/app/revanced/api/plugins/Dependencies.kt

@@ -1,16 +1,12 @@
 package app.revanced.api.plugins
 
-import app.revanced.api.APIConfiguration
+import app.revanced.api.schema.APIConfiguration
 import app.revanced.api.backend.github.GitHubBackend
 import com.akuleshov7.ktoml.Toml
 import com.akuleshov7.ktoml.source.decodeFromStream
 import io.github.cdimascio.dotenv.Dotenv
 import io.ktor.server.application.*
-import kotlinx.serialization.decodeFromString
-import kotlinx.serialization.encodeToString
-import org.koin.core.context.startKoin
 import org.koin.dsl.module
-import org.koin.ktor.ext.inject
 import org.koin.ktor.plugin.Koin
 import java.io.File
 

src/main/kotlin/app/revanced/api/plugins/Routing.kt

@@ -1,8 +1,7 @@
 package app.revanced.api.plugins
 
-import app.revanced.api.*
 import app.revanced.api.backend.github.GitHubBackend
-import io.ktor.client.utils.EmptyContent.contentType
+import app.revanced.api.schema.*
 import io.ktor.http.*
 import io.ktor.server.application.*
 import io.ktor.server.http.content.*

src/main/kotlin/app/revanced/api/schema/APISchema.kt

@@ -1,4 +1,4 @@
-package app.revanced.api
+package app.revanced.api.schema
 
 import kotlinx.serialization.Serializable
 
@@ -52,4 +52,22 @@ class APIAsset(
 @Serializable
 class APIReleaseVersion(
     val version: String
-)
+)
+
+@Serializable
+class APIAnnouncement(
+    val id: Int,
+    val author: APIUser?,
+    val title: String,
+    val content: APIAnnouncementContent,
+    val channel: String,
+    val createdAt: String,
+    val archivedAt: String?,
+    val level: Int,
+)
+
+@Serializable
+class APIAnnouncementContent(
+    val message: String,
+    val attachmentUrls: Set<String>
+)

src/main/kotlin/app/revanced/api/schema/ConfigurationSchema.kt

@@ -1,4 +1,4 @@
-package app.revanced.api
+package app.revanced.api.schema
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable

src/main/resources/app.revanced.api/version.properties

@@ -0,0 +1 @@
+version=${projectVersion}