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nimcord/src/eventdispatcher.nim

64 lines
3.0 KiB
Nim

import eventhandler, json, tables, message, emoji, user, member, role, guild, channel, nimcordutils, httpClient, strformat, cache, sequtils, asyncdispatch, clientobjects
proc readyEvent(discordClient: DiscordClient, json: JsonNode) =
var readyEvent = ReadyEvent(client: discordClient, readyPayload: json, name: $EventType.evtReady)
# Get client user
var client = newHttpClient()
# Add headers
client.headers = newHttpHeaders({"Authorization": fmt("Bot {discordClient.token}"),
"User-Agent": "NimCord (https://github.com/SeanOMik/nimcord, v0.0.0)",
"X-RateLimit-Precision": "millisecond"})
echo "Sending GET request, URL: body: {}"
waitForRateLimits(0, RateLimitBucketType.global)
var json = handleResponse(client.request(endpoint("/users/@me"), HttpGet, ""), 0, RateLimitBucketType.global)
let clientUser: User = newUser(json)
readyEvent.clientUser = clientUser
dispatchEvent(readyEvent)
proc channelCreateEvent(discordClient: DiscordClient, json: JsonNode) =
let chnl = newChannel(json)
let channelCreateEvent = ChannelCreateEvent(client: discordClient, channel: chnl, name: $EventType.evtChannelCreate)
# Add the channel to its guild's `channels` field
if (chnl.guildID != 0):
discordClient.cache.cacheGuildChannel(chnl.guildID, chnl)
discordClient.cache.channels.add(chnl)
dispatchEvent(channelCreateEvent)
#proc channelUpdateEvent(discordClient: DiscordClient, json: JsonNode) =
#proc channelDeleteEvent(discordClient: DiscordClient, json: JsonNode) =
proc messageCreateEvent(discordClient: DiscordClient, json: JsonNode) =
let msg = newMessage(json)
let messageCreateEvnt = MessageCreateEvent(client: discordClient, message: msg, name: $EventType.evtMessageCreate)
dispatchEvent(messageCreateEvnt)
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)
dispatchEvent(guildCreateEvnt)
let internalEventTable: Table[string, proc(discordClient: DiscordClient, json: JsonNode) {.nimcall.}] = {
"READY": readyEvent,
"MESSAGE_CREATE": messageCreateEvent,
"GUILD_CREATE": guildCreateEvent,
"CHANNEL_CREATE": channelCreateEvent
}.toTable
proc handleDiscordEvent*(discordClient: DiscordClient, json: JsonNode, eventName: string) {.async.} =
## Handles, and dispatches, a gateway event. Only used internally.
if (internalEventTable.hasKey(eventName)):
let eventProc: proc(discordClient: DiscordClient, json: JsonNode) = internalEventTable[eventName]
eventProc(discordClient, json)
else:
echo "Failed to find event: ", eventName