From c1a14fdac1e0eb3079e26861fcd822665df9559d Mon Sep 17 00:00:00 2001
From: DjDeveloperr <djsandhu2005@gmail.com>
Date: Sun, 14 Mar 2021 15:46:44 +0530
Subject: [PATCH] http slash commands

---
 src/models/slashClient.ts | 41 +++++++++++++++++++++++++++++++++++----
 src/structures/slash.ts   | 14 +++++++++----
 src/test/slash-http.ts    | 27 +++++---------------------
 3 files changed, 52 insertions(+), 30 deletions(-)

diff --git a/src/models/slashClient.ts b/src/models/slashClient.ts
index 5f8955d..33b3aca 100644
--- a/src/models/slashClient.ts
+++ b/src/models/slashClient.ts
@@ -1,7 +1,11 @@
 import { Guild } from '../structures/guild.ts'
-import { Interaction } from '../structures/slash.ts'
+import {
+  Interaction,
+  InteractionApplicationCommandResolved
+} from '../structures/slash.ts'
 import {
   InteractionPayload,
+  InteractionResponsePayload,
   InteractionType,
   SlashCommandChoice,
   SlashCommandOption,
@@ -14,6 +18,7 @@ import { Client } from './client.ts'
 import { RESTManager } from './rest.ts'
 import { SlashModule } from './slashModule.ts'
 import { verify as edverify } from 'https://deno.land/x/ed25519@1.0.1/mod.ts'
+import { User } from '../structures/user.ts'
 
 export class SlashCommand {
   slash: SlashCommandsManager
@@ -372,6 +377,9 @@ export interface SlashOptions {
   publicKey?: string
 }
 
+const encoder = new TextEncoder()
+const decoder = new TextDecoder('utf-8')
+
 /** Slash Client represents an Interactions Client which can be used without Harmony Client. */
 export class SlashClient {
   id: string | (() => string)
@@ -537,16 +545,17 @@ export class SlashClient {
     return edverify(signature, fullBody, this.publicKey).catch(() => false)
   }
 
-  /** Verify [Deno Std HTTP Server Request](https://deno.land/std/http/server.ts) and return Interaction */
+  /** Verify [Deno Std HTTP Server Request](https://deno.land/std/http/server.ts) and return Interaction. **Data present in Interaction returned by this method is very different from actual typings as there is no real `Client` behind the scenes to cache things.** */
   async verifyServerRequest(req: {
     headers: Headers
     method: string
     body: Deno.Reader
     respond: (options: {
       status?: number
+      headers?: Headers
       body?: string | Uint8Array
     }) => Promise<void>
-  }): Promise<boolean | Interaction> {
+  }): Promise<false | Interaction> {
     if (req.method.toLowerCase() !== 'post') return false
 
     const signature = req.headers.get('x-signature-ed25519')
@@ -559,7 +568,31 @@ export class SlashClient {
 
     try {
       const payload: InteractionPayload = JSON.parse(decoder.decode(rawbody))
-      const res = new Interaction(this as any, payload, {})
+
+      // TODO: Maybe fix all this hackery going on here?
+      const res = new Interaction(this as any, payload, {
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        user: new User(this as any, (payload.member?.user ?? payload.user)!),
+        member: payload.member as any,
+        guild: payload.guild_id as any,
+        channel: payload.channel_id as any,
+        resolved: ((payload.data
+          ?.resolved as unknown) as InteractionApplicationCommandResolved) ?? {
+          users: {},
+          members: {},
+          roles: {},
+          channels: {}
+        }
+      })
+      res._httpRespond = async (d: InteractionResponsePayload) =>
+        await req.respond({
+          status: 200,
+          headers: new Headers({
+            'content-type': 'application/json'
+          }),
+          body: JSON.stringify(d)
+        })
+
       return res
     } catch (e) {
       return false
diff --git a/src/structures/slash.ts b/src/structures/slash.ts
index 9b8cc10..259151b 100644
--- a/src/structures/slash.ts
+++ b/src/structures/slash.ts
@@ -108,6 +108,8 @@ export class Interaction extends SnowflakeBase {
   resolved: InteractionApplicationCommandResolved
   /** Whether response was deferred or not */
   deferred: boolean = false
+  _httpRespond?: (d: InteractionResponsePayload) => unknown
+  _httpResponded?: boolean
 
   constructor(
     client: Client,
@@ -180,10 +182,14 @@ export class Interaction extends SnowflakeBase {
           : undefined
     }
 
-    await this.client.rest.post(
-      INTERACTION_CALLBACK(this.id, this.token),
-      payload
-    )
+    if (this._httpRespond !== undefined && this._httpResponded !== true) {
+      this._httpResponded = true
+      await this._httpRespond(payload)
+    } else
+      await this.client.rest.post(
+        INTERACTION_CALLBACK(this.id, this.token),
+        payload
+      )
     this.responded = true
 
     return this
diff --git a/src/test/slash-http.ts b/src/test/slash-http.ts
index 02f9836..893feaf 100644
--- a/src/test/slash-http.ts
+++ b/src/test/slash-http.ts
@@ -18,27 +18,10 @@ await slash.commands.bulkEdit([
 const options = { port: 8000 }
 console.log('Listen on port: ' + options.port.toString())
 listenAndServe(options, async (req) => {
-  const verify = await slash.verifyServerRequest(req)
-  if (verify === false)
-    return req.respond({ status: 401, body: 'not authorized' })
+  const d = await slash.verifyServerRequest(req)
+  if (d === false) return req.respond({ status: 401, body: 'not authorized' })
 
-  const respond = async (d: any): Promise<void> =>
-    req.respond({
-      status: 200,
-      body: JSON.stringify(d),
-      headers: new Headers({
-        'content-type': 'application/json'
-      })
-    })
-
-  const body = JSON.parse(
-    new TextDecoder('utf-8').decode(await Deno.readAll(req.body))
-  )
-  if (body.type === 1) return await respond({ type: 1 })
-  await respond({
-    type: 4,
-    data: {
-      content: 'Pong!'
-    }
-  })
+  console.log(d)
+  if (d.type === 1) return d.respond({ type: 1 })
+  d.reply('Pong!')
 })