Finish event system.

This commit is contained in:
SeanOMik 2020-05-29 23:59:23 -05:00
parent edbde752af
commit ce11b1613c
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8 changed files with 121 additions and 33 deletions

12
.gitignore vendored Normal file
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# Don't track content of these folders
# Compiled source #
###################
*.exe
# Packages #
############
# it's better to unpack these files and commit the raw source
# git has its own built in compression methods
#*.7z
#*.dmg

25
.vscode/launch.json vendored Normal file
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{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "(gdb) Attach",
"type": "cppdbg",
"request": "attach",
"program": "${workspaceFolder}/src/client.exe",
"processId": "${command:pickProcess}",
"MIMode": "gdb",
"miDebuggerPath": "/path/to/gdb",
"preLaunchTask": "Run client.nim",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]
},
]
}

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.vscode/tasks.json vendored Normal file
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{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
{
"taskName": "Run client.nim",
"command": "nim",
"args": ["c", "-d:ssl", "-r", "src/client.nim"],
"options": {
"cwd": "${workspaceRoot}"
},
"type": "shell",
"group": {
"kind": "build",
"isDefault": true
}
}
]
}

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@ -2,9 +2,9 @@
version = "0.0.0"
author = "SeanOMik, Intexisty"
description = "Discord API wrapper written in nim. Inspired by discord.py"
description = "Discord API wrapper written in Nim. Inspired by discord.py"
license = "MIT"
# Dependencies
requires "nim >= 1.0.4", "websocket >= 0.4.1"
requires "nim >= 1.0.4", "websocket == 0.4.1"

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@ -1,4 +1,4 @@
import websocket, asyncnet, asyncdispatch, json, httpClient, strformat
import websocket, asyncnet, asyncdispatch, json, httpClient, strformat, eventdispatcher, eventhandler
type
DiscordOpCode = enum
@ -14,8 +14,6 @@ type
opHello = 10,
opHeartbeatAck = 11
DiscordClient* = ref object ## Discord Client
token*: string
#user*: User
@ -72,6 +70,8 @@ proc handleWebsocketPacket(client: DiscordClient) {.async.} =
client.heartbeatAcked = true
of ord(DiscordOpCode.opHeartbeatAck):
client.heartbeatAcked = true
of ord(DiscordOpCode.opDispatch):
handleDiscordEvent(json["d"], json["t"].getStr())
else:
discard
@ -101,5 +101,11 @@ proc startConnection*(client: DiscordClient) {.async.} =
raise e
var bot = DiscordClient(token:
"NjQ4NjcwNDA4NDg4MjU1NTAw.XtCGDw.ZNaRT6kNIMyO1wlcZbbaUGSsm7g")
"TOKEN")
registerEventListener(EventType.evtReady, proc(bEvt: BaseEvent) =
let event: ReadyEvent = ReadyEvent(bEvt)
echo "Ready and connected!"
)
waitFor bot.startConnection()

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@ -1,27 +0,0 @@
import tables, hashes, sequtils
type
BaseEvent* = object
name*: string
proc hash[T: object](o: T): Hash =
for k, v in o.fieldPairs:
result = result !& v.hash
result = !$result
# Table storing all the event listeners
let eventListeners = newTable[BaseEvent, seq[proc()]]()
proc registerEventListener*(event: BaseEvent, listener: proc()) =
if (eventListeners.hasKey(event)):
var listeners = eventListeners[event]
listeners.add(listener)
else:
let tmp = @[listener]
eventListeners.add(event, tmp)
proc dispatchEvent(event: BaseEvent) =
if (eventListeners.hasKey(event)):
let listeners = eventListeners[event]
for index, eventListener in listeners.pairs:
eventListener()

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src/eventdispatcher.nim Normal file
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import eventhandler, json, tables, hashes
proc readyEvent(json: JsonNode) =
let readyEvent = ReadyEvent(readyPayload: json, name: $EventType.evtReady)
dispatchEvent(readyEvent)
let internalEventTable: Table[string, proc(json: JsonNode) {.nimcall.}] = {
"READY": readyEvent
}.toTable
proc handleDiscordEvent*(json: JsonNode, eventName: string) =
if (internalEventTable.hasKey(eventName)):
let eventProc:proc(json: JsonNode) = internalEventTable[eventName]
eventProc(json)
else:
echo "Failed to find event: ", eventName

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src/eventhandler.nim Normal file
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import tables, hashes, json
type
EventType* = enum
evtReady = "READY"
BaseEvent* = object of RootObj
name*: string
ReadyEvent* = object of BaseEvent
readyPayload*: JsonNode
# Table storing all the event listeners
let eventListeners = newTable[string, seq[proc(event: BaseEvent)]]()
proc registerEventListener*(event: EventType, listener: proc(event: BaseEvent)) =
if (eventListeners.hasKey($event)):
var listeners = eventListeners[$event]
listeners.add(cast[proc(event: BaseEvent)](listener))
echo "Added other event listener: ", $event
else:
let tmp = @[listener]
eventListeners.add($event, tmp)
echo "Added new event listener: ", $event
proc dispatchEvent*[T: BaseEvent](event: T) =
#let base: BaseEvent = BaseEvent(event)
if (eventListeners.hasKey(event.name)):
let listeners = eventListeners[event.name]
for index, eventListener in listeners.pairs:
echo "Dispatching event: ", event.name
eventListener(event)
else:
echo "No event listeners for event: ", event.name