chore: add tests on welcome run purge (#40)

README.md

@@ -147,7 +147,9 @@ If the message is not found then it will publish it and add a reaction to show u
 If the message is found then it will fetch all reactions by the users and apply role.
 
 If the user is no longer in the Discord server and you have set `can_purge_reactions` to `true` then it will:
-1. check `purge_threshold_members_reacted` whether the threshold for the number of users who have reacted to the message has been exceeded.
-2. check `purge_below_count_members_not_in_guild` whether the number of invalid users is below a certain threshold.
+1. check `purge_threshold_members_reacted` whether the threshold for the number of users who have reacted to the message has been exceeded or equal.
+2. check `purge_below_count_members_not_in_guild` whether the number of invalid users is below or equal a certain threshold.
 
-If the answer to these questions is positive, the reaction to the message will be deleted.
+If the answer to these questions is positive, the reaction to the message will be deleted.  
+For example you can set `purge_threshold_members_reacted` to 150 and `purge_below_count_members_not_in_guild` to 10.  
+It will purge only if you have 150 or more reactions and only 10 or less users not in the server.  

welcome/welcome.go

@@ -411,7 +411,7 @@ func (w *Manager) updateRoleBelongMessage(message Message) error {
 			Str("role", message.Role).
 			Str("user_id", user.ID).
 			Str("username", user.Username).
-			Msg("Add Role to User")
+			Msg("Adding Role to User")
 
 		err = w.session.GuildMemberRoleAdd(w.config.GuildID, user.ID, message.RoleID)
 		if err != nil {
@@ -433,17 +433,23 @@ func (w *Manager) updateRoleBelongMessage(message Message) error {
 			Msg("Members not found in Guild")
 
 		if message.CanPurgeReactions &&
-			len(users) > message.PurgeThresholdMembersReacted &&
-			len(membersNotInGuild) < message.PurgeBelowCountMembersNotInGuild {
+			len(users) >= message.PurgeThresholdMembersReacted &&
+			len(membersNotInGuild) <= message.PurgeBelowCountMembersNotInGuild {
 			log.Info().
 				Msg("Do purge")
 
 			for idx := range membersNotInGuild {
+				log.Info().
+					Str("message_id", message.ID).
+					Str("emoji", message.Emoji+":"+message.EmojiID).
+					Str("user_id", membersNotInGuild[idx]).
+					Msg("Removing Reaction on Message for User")
+
 				err = w.session.MessageReactionRemove(w.config.ChannelID, message.ID, message.Emoji+":"+message.EmojiID, membersNotInGuild[idx])
 				if err != nil {
 					log.Error().Err(err).
-						Str("role_id", message.RoleID).
-						Str("role", message.Role).
+						Str("message_id", message.ID).
+						Str("emoji", message.Emoji+":"+message.EmojiID).
 						Str("user_id", membersNotInGuild[idx]).
 						Msg("Could not remove Reaction")
 				}