Convert cache to use Tables instead and more event dispatches

src/cache.nim

@@ -1,23 +1,22 @@
-import message, member, channel, guild, discordobject, nimcordutils, httpcore, user
+import message, member, channel, guild, discordobject, nimcordutils, httpcore, user, tables
 
 type Cache* = ref object
-    members*: seq[GuildMember]
-    messages*: seq[Message]
-    channels*: seq[Channel]
-    guilds*: seq[Guild]
+    members*: Table[snowflake, GuildMember]
+    messages*: Table[snowflake, Message]
+    channels*: Table[snowflake, Channel]
+    guilds*: Table[snowflake, Guild]
 
 proc getChannel*(cache: var Cache, id: snowflake): Channel =
     ## Get a channel object from the id.
     ## 
     ## If for some reason the channel is not in cache, it gets requested via the 
     ## Discord REST API.
-    for channel in cache.channels:
-        if (channel.id == id):
-            return channel
+    if (cache.channels.hasKey(id)):
+        return cache.channels[id]
     
     result = newChannel(sendRequest(endpoint("/channels/" & $id), HttpGet, defaultHeaders(), 
         id, RateLimitBucketType.channel))
-    cache.channels.add(result)
+    cache.channels.add(id, result)
 
 proc getMessageChannel*(msg: Message, cache: var Cache): Channel =
     ## Get a message's channel object.
@@ -31,13 +30,12 @@ proc getGuild*(cache: var Cache, id: snowflake): Guild =
     ## 
     ## If for some reason the guild is not in cache, it gets requested via the 
     ## Discord REST API.
-    for guild in cache.guilds:
-        if (guild.id == id):
-            return guild
+    if (cache.guilds.hasKey(id)):
+        return cache.guilds[id]
     
     result = newGuild(sendRequest(endpoint("/guilds/" & $id), HttpGet, defaultHeaders(), 
         id, RateLimitBucketType.guild))
-    cache.guilds.add(result)
+    cache.guilds.add(result.id, result)
 
 proc getChannelGuild*(channel: Channel, cache: var Cache): Guild =
     ## Get a channels's guild object.
@@ -51,9 +49,8 @@ proc getUser*(cache: Cache, id: snowflake): User =
     ## 
     ## If for some reason the user is not in cache, it gets requested via the 
     ## Discord REST API.
-    for member in cache.members:
-        if (member.user.id == id):
-            return member.user
+    if (cache.members.hasKey(id)):
+        return cache.members[id].user
 
     return newUser(sendRequest(endpoint("/users/" & $id), HttpGet, defaultHeaders()))
 

src/eventdispatcher.nim

@@ -1,4 +1,6 @@
-import eventhandler, json, tables, message, emoji, user, member, role, guild, channel, nimcordutils, httpClient, strformat, cache, sequtils, asyncdispatch, clientobjects
+import eventhandler, json, tables, message, emoji, user, member, role
+import guild, channel, nimcordutils, httpClient, strformat, cache
+import sequtils, asyncdispatch, clientobjects, discordobject
 
 proc readyEvent(discordClient: DiscordClient, json: JsonNode) =
     var readyEvent = ReadyEvent(client: discordClient, readyPayload: json, name: $EventType.evtReady)
@@ -26,32 +28,70 @@ proc channelCreateEvent(discordClient: DiscordClient, json: JsonNode) =
     # Add the channel to its guild's `channels` field
     if (chnl.guildID != 0):
         discordClient.cache.cacheGuildChannel(chnl.guildID, chnl)
-    discordClient.cache.channels.add(chnl)
+    discordClient.cache.channels.add(chnl.id, chnl)
 
     dispatchEvent(channelCreateEvent)
 
-#proc channelUpdateEvent(discordClient: DiscordClient, json: JsonNode) = 
-#proc channelDeleteEvent(discordClient: DiscordClient, json: JsonNode) = 
+proc channelUpdateEvent(discordClient: DiscordClient, json: JsonNode) = 
+    let chnl = newChannel(json)
+    let channelUpdateEvent = ChannelUpdateEvent(client: discordClient, channel: chnl, name: $EventType.evtChannelUpdate)
+
+    if (discordClient.cache.channels.hasKey(chnl.id)):
+        discordClient.cache.channels[chnl.id] = chnl
+    else:
+        discordClient.cache.channels.add(chnl.id, chnl)
+
+    dispatchEvent(channelUpdateEvent)
+
+
+proc channelDeleteEvent(discordClient: DiscordClient, json: JsonNode) = 
+    let chnl = newChannel(json)
+    let channelDeleteEvent = ChannelDeleteEvent(client: discordClient, channel: chnl, name: $EventType.evtChannelDelete)
+
+    var removedChnl: Channel
+    discard discordClient.cache.channels.pop(chnl.id, removedChnl)
+
+    dispatchEvent(channelDeleteEvent)
 
 proc messageCreateEvent(discordClient: DiscordClient, json: JsonNode) =
     let msg = newMessage(json)
+
+    discordClient.cache.messages.add(msg.id, msg)
+
     let messageCreateEvnt = MessageCreateEvent(client: discordClient, message: msg, name: $EventType.evtMessageCreate)
     dispatchEvent(messageCreateEvnt)
 
+proc channelPinsUpdate(discordClient: DiscordClient, json: JsonNode) =
+    let channelID = getIDFromJson(json["channel_id"].getStr())
+
+    var channel: Channel
+    if (discordClient.cache.channels.hasKey(channelID)):
+        channel = discordClient.cache.channels[channelID]
+        channel.lastPinTimestamp = json["last_pin_timestamp"].getStr()
+
+    let channelPinsUpdateEvent = ChannelPinsUpdateEvent(client: discordClient, channel: channel, name: $EventType.evtChannelPinsUpdate)
+    dispatchEvent(channelPinsUpdateEvent)
+
 proc guildCreateEvent(discordClient: DiscordClient, json: JsonNode) =
     let g = newGuild(json)
     let guildCreateEvnt = GuildCreateEvent(client: discordClient, guild: g, name: $EventType.evtGuildCreate)
 
-    discordClient.cache.guilds.insert(g)
-    discordClient.cache.channels = concat(discordClient.cache.channels, g.channels)
-    discordClient.cache.members = concat(discordClient.cache.members, g.members)
+    # Add guild and its channels and members in cache.
+    discordClient.cache.guilds.add(g.id, g)
+    for channel in g.channels:
+        discordClient.cache.channels.add(channel.id, channel)
+    for member in g.members:
+        discordClient.cache.members.add(member.id, member)
+
     dispatchEvent(guildCreateEvnt)
 
 let internalEventTable: Table[string, proc(discordClient: DiscordClient, json: JsonNode) {.nimcall.}] = {
         "READY": readyEvent,
         "MESSAGE_CREATE": messageCreateEvent,
         "GUILD_CREATE": guildCreateEvent,
-        "CHANNEL_CREATE": channelCreateEvent
+        "CHANNEL_CREATE": channelCreateEvent,
+        "CHANNEL_UPDATE": channelUpdateEvent,
+        "CHANNEL_DELETE": channelDeleteEvent
     }.toTable
 
 proc handleDiscordEvent*(discordClient: DiscordClient, json: JsonNode, eventName: string) {.async.} =