add post-listener & add example

examples/latency-example.lua

@@ -0,0 +1,70 @@
+--[[
+  Usage: send `!new-button` command to get a message with components.
+
+  Pressing the buttons will do stuff!
+]]
+
+local timer = require 'timer'
+local discordia = require 'discordia'
+require 'discordia-interactions'
+
+local client = discordia.Client()
+client:enableIntents('messageContent')
+
+local Stopwatch = discordia.Stopwatch
+
+client:on('messageCreate', function (msg)
+  -- Use discordia-extensions instead of this!
+  -- this is just to get the example working
+  if msg.content == '!new-button' then
+    client._api:createMessage(msg.channel.id, {
+      content = 'Here is a button!',
+      components = {
+        {
+          type = 1,
+          components = {
+            {
+              type = 2,
+              label = 'API Ping',
+              style = 1,
+              custom_id = 'api_ping',
+            },
+            {
+              type = 2,
+              label = 'API Ping Message',
+              style = 3,
+              custom_id = 'api_ping_msg',
+            },
+          },
+        },
+      }
+    })
+  end
+end)
+
+---@param intr Interaction
+client:on('interactionCreate', function (intr)
+  if intr.data.custom_id == 'api_ping' then
+    local sw = Stopwatch()
+    local msg, err = intr:replyDeferred(true)
+    sw:stop()
+    if not msg then
+      return print(err)
+    end
+    intr:reply('The API latency (one-way) is ' .. (sw:getTime() / 2):toString())
+    timer.sleep(3000)
+    intr:deleteReply()
+  elseif intr.data.custom_id == 'api_ping_msg' then
+    local sw = Stopwatch()
+    local msg, err = intr:reply('Calculating latency...')
+    sw:stop()
+    if not msg then
+      return print(err)
+    end
+    intr:editReply('The API latency (one-way) is ' .. (sw:getTime() / 2):toString())
+    timer.sleep(3000)
+    intr:deleteReply()
+  end
+end)
+
+client:run('Bot TOKEN')

libs/client/EventHandler.lua

@@ -1,16 +1,23 @@
 local Interaction = require("containers/Interaction")
 local events = {
-  interaction_create_prelisteners = {}
+  interaction_create_prelisteners = {},
+  interaction_create_postlisteners = {},
 }
 
+local function emitListeners(listeners, ...)
+  for _, v in pairs(listeners) do
+    v(...)
+  end
+end
+
 function events.INTERACTION_CREATE(d, client)
   local interaction = Interaction(d, client)
-  for _, v in pairs(events.interaction_create_prelisteners) do
-    v(interaction, client)
-  end
-  return client:emit("interactionCreate", interaction)
+  emitListeners(events.interaction_create_prelisteners, interaction, client)
+  client:emit("interactionCreate", interaction)
+  emitListeners(events.interaction_create_postlisteners, interaction, client)
 end
 
+-- This code is part of Discordia
 local function checkReady(shard)
 	for _, v in pairs(shard._loading) do
 		if next(v) then return end