Correctly show reactions with more than 50 users

If a reaction has more than 50 users, the list of users will be cropped
to just 50 users. This made the counts wrong since we used the number of
users rather than the count property. Fix it by using the count property
instead and adding "and others" to the list of users if
show_reaction_nicks is enabled (the same as the Slack client shows when
you hover over the reaction).

2 files changed, 33 insertions, 4 deletions

diff --git a/_pytest/test_render_message.py b/_pytest/test_render_message.py
index 12b654d..f336a05 100644
--- a/_pytest/test_render_message.py
+++ b/_pytest/test_render_message.py
@@ -91,6 +91,29 @@ import wee_slack
         },
         {
             "input_message": {
+                "text": "test",
+                "reactions": [{"name": "custom", "users": ["U01E8P3JKM1"], "count": 2}],
+            },
+            "rendered": "test <[color darkgray]>[:custom:2]<[color reset]>",
+        },
+        {
+            "input_message": {
+                "text": "test",
+                "reactions": [{"name": "custom", "users": ["U407ABLLW"], "count": 1}],
+            },
+            "rendered": "test <[color darkgray]>[:custom:(@alice)]<[color reset]>",
+            "show_reaction_nicks": True,
+        },
+        {
+            "input_message": {
+                "text": "test",
+                "reactions": [{"name": "custom", "users": ["U407ABLLW"], "count": 2}],
+            },
+            "rendered": "test <[color darkgray]>[:custom:(@alice, and others)]<[color reset]>",
+            "show_reaction_nicks": True,
+        },
+        {
+            "input_message": {
                 "blocks": [
                     {
                         "type": "rich_text",
@@ -144,6 +167,7 @@ import wee_slack
 def test_render_message(case, channel_general):
     wee_slack.EMOJI, wee_slack.EMOJI_WITH_SKIN_TONES_REVERSE = wee_slack.load_emoji()
     wee_slack.config.render_emoji_as_string = case.get("render_emoji_as_string")
+    wee_slack.config.show_reaction_nicks = case.get("show_reaction_nicks", False)
     message_json = {"ts": str(wee_slack.SlackTS()), **case["input_message"]}
     message = wee_slack.SlackMessage("normal", message_json, channel_general)
     result = message.render()
diff --git a/wee_slack.py b/wee_slack.py
index 88949d9..73723b9 100644
--- a/wee_slack.py
+++ b/wee_slack.py
@@ -3505,17 +3505,19 @@ class SlackMessage(object):
     def add_reaction(self, reaction_name, user):
         reaction = self.get_reaction(reaction_name)
         if reaction:
+            reaction["count"] += 1
             if user not in reaction["users"]:
                 reaction["users"].append(user)
         else:
             if "reactions" not in self.message_json:
                 self.message_json["reactions"] = []
             self.message_json["reactions"].append(
-                {"name": reaction_name, "users": [user]}
+                {"name": reaction_name, "count": 1, "users": [user]}
             )
 
     def remove_reaction(self, reaction_name, user):
         reaction = self.get_reaction(reaction_name)
+        reaction["count"] -= 1
         if user in reaction["users"]:
             reaction["users"].remove(user)
 
@@ -5139,9 +5141,12 @@ def create_user_status_string(profile):
 def create_reaction_string(reaction, myidentifier):
     if config.show_reaction_nicks:
         nicks = [resolve_ref("@{}".format(user)) for user in reaction["users"]]
-        users = "({})".format(", ".join(nicks))
+        nicks_extra = (
+            ["and others"] if len(reaction["users"]) < reaction["count"] else []
+        )
+        users = "({})".format(", ".join(nicks + nicks_extra))
     else:
-        users = len(reaction["users"])
+        users = reaction["count"]
     reaction_string = ":{}:{}".format(reaction["name"], users)
     if myidentifier in reaction["users"]:
         return colorize_string(
@@ -5154,7 +5159,7 @@ def create_reaction_string(reaction, myidentifier):
 
 
 def create_reactions_string(reactions, myidentifier):
-    reactions_with_users = [r for r in reactions if len(r["users"]) > 0]
+    reactions_with_users = [r for r in reactions if r["count"] > 0]
     reactions_string = " ".join(
         create_reaction_string(r, myidentifier) for r in reactions_with_users
     )