Instrument interaction callback types

src/main/kotlin/dev/capybaralabs/shipa/ShipaMetrics.kt

@@ -1,5 +1,6 @@
 package dev.capybaralabs.shipa
 
+import dev.capybaralabs.shipa.discord.interaction.model.InteractionResponse
 import dev.capybaralabs.shipa.discord.millis
 import io.micrometer.core.instrument.Counter
 import io.micrometer.core.instrument.MeterRegistry
@@ -51,6 +52,18 @@ class ShipaMetrics(private val meterRegistry: MeterRegistry) {
 			.register(meterRegistry)
 	}
 
+	fun interactionCallbackTypes(interactionResponse: InteractionResponse): Counter {
+		return Counter
+			.builder("shipa.interaction.callback.types")
+			.description("The type of interaction response we respond with to the Discord webhooks")
+			.tags(
+				Tags.of(
+					Tag.of("type", interactionResponse.type.name),
+				),
+			)
+			.register(meterRegistry)
+	}
+
 	fun commandProcessTime(name: String, type: String): Timer {
 		return Timer
 			.builder("shipa.command.process.time")

src/main/kotlin/dev/capybaralabs/shipa/discord/interaction/InteractionController.kt

@@ -129,8 +129,11 @@ internal class InteractionController(
 
 		interactionScope.launchInteractionProcessing(interaction, initialResponse, totalTimer)
 		return result.asCompletableFuture()
-			.thenApply { ResponseEntity.ok().body(it) }
-			.orTimeout(3, SECONDS)
+			.thenApply {
+				metrics.interactionCallbackTypes(it).increment()
+				ResponseEntity.ok().body(it)
+			}
+			.orTimeout(3, SECONDS) // consider timing out based on Discord timestamp, not our own.
 			.exceptionallyCompose {
 				if (it is TimeoutException) {
 					CompletableFuture.failedFuture(TimeoutException("result Future timed out on interaction ${interaction.id}"))