Fixed a bug with post reactions

x/posts/internal/types/models/reactions/post_reaction.go

@@ -90,24 +90,34 @@ func (reactions PostReactions) ContainsReactionFrom(user sdk.Address, value stri
 // given user with the specified code inside the reactions slice.
 // NOTE: The value can be either an emoji or a shortcode.
 func (reactions PostReactions) IndexOfByUserAndValue(owner sdk.Address, value string) int {
-	reactEmoji, err := emoji.LookupEmoji(value)
-	isEmoji := err == nil
+	var reactEmoji *emoji.Emoji
+	if ej, err := emoji.LookupEmoji(value); err == nil {
+		reactEmoji = &ej
+	} else if ej, err := emoji.LookupEmojiByCode(value); err == nil {
+		reactEmoji = &ej
+	}
 
 	for index, reaction := range reactions {
 		if reaction.Owner.Equals(owner) {
-			// The given value is a shortcode, so check only that
-			if !isEmoji && reaction.Value == value {
-				return index
-			}
+			if reactEmoji != nil {
+				// Check the emoji value
+				if reaction.Value == reactEmoji.Value {
+					return index
+				}
 
-			// The given value is an emoji, so we need to check is any of its shortcode match this reaction value
-			if isEmoji {
+				// Check the emoji shortcodes
 				for _, code := range reactEmoji.Shortcodes {
 					if reaction.Value == code {
 						return index
 					}
 				}
 			}
+
+			if reactEmoji == nil {
+				if value == reaction.Value {
+					return index
+				}
+			}
 		}
 	}
 	return -1

x/posts/internal/types/models/reactions/post_reaction_test.go

@@ -237,6 +237,34 @@ func TestPostReactions_IndexOfByUserAndValue(t *testing.T) {
 			value:     "reaction-2",
 			expIndex:  -1,
 		},
+		{
+			name:      "Exiting reaction search by code",
+			reactions: reactions.PostReactions{reactions.NewPostReaction("reaction", user)},
+			owner:     user,
+			value:     "reaction",
+			expIndex:  0,
+		},
+		{
+			name:      "Exiting emoji reaction stored by value search by code",
+			reactions: reactions.PostReactions{reactions.NewPostReaction("🔥", user)},
+			owner:     user,
+			value:     ":fire:",
+			expIndex:  0,
+		},
+		{
+			name:      "Exiting emoji reaction stored by code search by code",
+			reactions: reactions.PostReactions{reactions.NewPostReaction(":fire:", user)},
+			owner:     user,
+			value:     ":fire:",
+			expIndex:  0,
+		},
+		{
+			name:      "Exiting emoji reaction stored by code search by value",
+			reactions: reactions.PostReactions{reactions.NewPostReaction(":fire:", user)},
+			owner:     user,
+			value:     "🔥",
+			expIndex:  0,
+		},
 	}
 
 	for _, test := range tests {