fix: reaction ordering by using indexmap

Cargo.lock

@@ -1454,12 +1454,12 @@ checksum = "90f97a5f38dd3ccfbe7aa80f4a0c00930f21b922c74195be0201c51028f22dcf"
 
 [[package]]
 name = "indexmap"
-version = "1.8.2"
+version = "1.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6012d540c5baa3589337a98ce73408de9b5a25ec9fc2c6fd6be8f0d39e0ca5a"
+checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
 dependencies = [
  "autocfg 1.1.0",
- "hashbrown 0.11.2",
+ "hashbrown 0.12.1",
  "serde",
 ]
 
@@ -2783,6 +2783,7 @@ dependencies = [
  "dotenv",
  "futures",
  "impl_ops",
+ "indexmap",
  "iso8601-timestamp",
  "lazy_static",
  "linkify 0.8.1",

crates/delta/src/routes/channels/message_send.rs

@@ -116,7 +116,7 @@ pub async fn message_send(
     }
 
     // 3. Ensure interactions information is correct
-    message.interactions.validate(db).await?;
+    message.interactions.validate(db, &mut permissions).await?;
 
     // 4. Verify replies are valid.
     let mut replies = HashSet::new();

crates/quark/Cargo.toml

@@ -64,6 +64,7 @@ regex = "1.5.5"
 nanoid = "0.4.0"
 linkify = "0.8.1"
 dotenv = "0.15.0"
+indexmap = "1.9.1"
 impl_ops = "0.1.1"
 num_enum = "0.5.6"
 reqwest = "0.11.10"

crates/quark/src/impl/generic/channels/message.rs

@@ -13,13 +13,14 @@ use crate::{
         },
         Channel, Emoji, Message, User,
     },
+    permissions::PermissionCalculator,
     presence::presence_filter_online,
     tasks::ack::AckEvent,
     types::{
         january::{Embed, Text},
         push::PushNotification,
     },
-    Database, Error, Result,
+    Database, Error, Permission, Result,
 };
 
 impl Message {
@@ -195,6 +196,11 @@ impl Message {
 
     /// Add a reaction to a message
     pub async fn add_reaction(&self, db: &Database, user: &User, emoji: &str) -> Result<()> {
+        // Check how many reactions are already on the message
+        if self.reactions.len() >= 20 {
+            return Err(Error::InvalidOperation);
+        }
+
         // Check if the emoji is whitelisted
         if !self.interactions.can_use(emoji) {
             return Err(Error::InvalidOperation);
@@ -401,8 +407,14 @@ impl BulkMessageResponse {
 
 impl Interactions {
     /// Validate interactions info is correct
-    pub async fn validate(&self, db: &Database) -> Result<()> {
+    pub async fn validate(
+        &self,
+        db: &Database,
+        permissions: &mut PermissionCalculator<'_>,
+    ) -> Result<()> {
         if let Some(reactions) = &self.reactions {
+            permissions.throw_permission(db, Permission::React).await?;
+
             if reactions.len() > 20 {
                 return Err(Error::InvalidOperation);
             }

crates/quark/src/models/channels/message.rs

@@ -1,11 +1,10 @@
 use crate::util::regex::RE_COLOUR;
-use std::collections::{HashMap, HashSet};
 
+use indexmap::{IndexMap, IndexSet};
+use iso8601_timestamp::Timestamp;
 use serde::{Deserialize, Serialize};
 use validator::Validate;
 
-use iso8601_timestamp::Timestamp;
-
 #[cfg(feature = "rocket_impl")]
 use rocket::FromFormField;
 
@@ -99,7 +98,7 @@ pub struct Masquerade {
 pub struct Interactions {
     /// Reactions which should always appear and be distinct
     #[serde(skip_serializing_if = "Option::is_none", default)]
-    pub reactions: Option<HashSet<String>>,
+    pub reactions: Option<IndexSet<String>>,
     /// Whether reactions should be restricted to the given list
     #[serde(skip_serializing_if = "if_false", default)]
     pub restrict_reactions: bool,
@@ -145,8 +144,8 @@ pub struct Message {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub replies: Option<Vec<String>>,
     /// Hashmap of emoji IDs to array of user IDs
-    #[serde(skip_serializing_if = "HashMap::is_empty", default)]
-    pub reactions: HashMap<String, HashSet<String>>,
+    #[serde(skip_serializing_if = "IndexMap::is_empty", default)]
+    pub reactions: IndexMap<String, IndexSet<String>>,
     /// Information about how this message should be interacted with
     #[serde(skip_serializing_if = "Interactions::is_default", default)]
     pub interactions: Interactions,