add discord hook logics

- add ApiDiscordRoutes.kt
- modify HookCommand from RegisterCommand.kt

webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/Main.kt

@@ -111,6 +111,7 @@ val server = embeddedServer(Netty, port = 8080, ) {
         apiSongRoutes()
         apiCommandRoutes()
         apiTimerRoutes()
+        apiDiscordRoutes()
 
         wsTimerRoutes()
         wsSongRoutes()

webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/ApiDiscordRoutes.kt

@@ -0,0 +1,60 @@
+package space.mori.chzzk_bot.webserver.routes
+
+import io.ktor.http.*
+import io.ktor.server.application.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+import io.ktor.server.sessions.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import org.koin.java.KoinJavaComponent.inject
+import space.mori.chzzk_bot.common.events.CoroutinesEventBus
+import space.mori.chzzk_bot.common.events.DiscordRegisterEvent
+import space.mori.chzzk_bot.common.services.UserService
+import space.mori.chzzk_bot.common.utils.getRandomString
+import space.mori.chzzk_bot.webserver.UserSession
+
+fun Route.apiDiscordRoutes() {
+    val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
+
+    route("/discord") {
+        get("{uid}") {
+            val uid = call.parameters["uid"]
+            val session = call.sessions.get<UserSession>()
+            if(uid == null) {
+                call.respond(HttpStatusCode.BadRequest, "UID is required")
+                return@get
+            }
+            val user = UserService.getUser(uid)
+            if(user == null || user.naverId != session?.id || user.token == null) {
+                call.respond(HttpStatusCode.BadRequest, "User does not exist")
+                return@get
+            }
+
+            if (user.discord == null) {
+                val randomString = getRandomString(8)
+
+                CoroutineScope(Dispatchers.Default).launch {
+                    dispatcher.post(DiscordRegisterEvent(
+                        user.token!!,
+                        randomString
+                    ))
+                }
+
+                call.respond(HttpStatusCode.NotFound, DiscordRequireRegisterDTO(
+                    user.token!!,
+                    randomString
+                ))
+                return@get
+            }
+
+
+        }
+    }
+}
+
+data class DiscordRequireRegisterDTO(
+    val user: String,
+    val passkey: String
+)