v0.2, refactor, improve some messages, fix lints

src/store/data.rs

@@ -11,9 +11,9 @@ pub(crate) struct Config {
 }
 
 impl Config {
-    pub(crate) fn iter_groups(&self) -> impl Iterator<Item = &GroupConfig> {
-        self.groups.values()
-    }
+    // pub(crate) fn iter_groups(&self) -> impl Iterator<Item = &GroupConfig> {
+    //     self.groups.values()
+    // }
 
     pub(crate) fn get_group_config(&self, acct: &str) -> Option<&GroupConfig> {
         self.groups.get(acct)
@@ -103,8 +103,10 @@ impl GroupConfig {
     }
 
     pub(crate) fn set_appdata(&mut self, appdata: AppData) {
+        if self.appdata != appdata {
+            self.mark_dirty();
+        }
         self.appdata = appdata;
-        self.mark_dirty();
     }
 
     pub(crate) fn get_admins(&self) -> impl Iterator<Item = &String> {
@@ -120,8 +122,10 @@ impl GroupConfig {
     }
 
     pub(crate) fn set_last_notif(&mut self, ts: u64) {
+        if self.last_notif_ts != ts {
+            self.mark_dirty();
+        }
         self.last_notif_ts = self.last_notif_ts.max(ts);
-        self.mark_dirty();
     }
 
     pub(crate) fn get_last_notif(&self) -> u64 {
@@ -129,8 +133,10 @@ impl GroupConfig {
     }
 
     pub(crate) fn set_last_status(&mut self, ts: u64) {
+        if self.last_status_ts != ts {
+            self.mark_dirty();
+        }
         self.last_status_ts = self.last_status_ts.max(ts);
-        self.mark_dirty();
     }
 
     pub(crate) fn get_last_status(&self) -> u64 {
@@ -177,67 +183,81 @@ impl GroupConfig {
     }
 
     pub(crate) fn set_admin(&mut self, acct: &str, admin: bool) -> Result<(), GroupError> {
-        if admin {
+        let change = if admin {
             if self.is_banned(acct) {
                 return Err(GroupError::UserIsBanned);
             }
-            self.admin_users.insert(acct.to_owned());
+            self.admin_users.insert(acct.to_owned())
         } else {
-            self.admin_users.remove(acct);
+            self.admin_users.remove(acct)
+        };
+        if change {
+            self.mark_dirty();
         }
-        self.mark_dirty();
         Ok(())
     }
 
     pub(crate) fn set_member(&mut self, acct: &str, member: bool) -> Result<(), GroupError> {
-        if member {
+        let change = if member {
             if self.is_banned(acct) {
                 return Err(GroupError::UserIsBanned);
             }
-            self.member_users.insert(acct.to_owned());
+            self.member_users.insert(acct.to_owned())
         } else {
-            self.member_users.remove(acct);
+            self.member_users.remove(acct)
+        };
+        if change {
+            self.mark_dirty();
         }
-        self.mark_dirty();
         Ok(())
     }
 
     pub(crate) fn ban_user(&mut self, acct: &str, ban: bool) -> Result<(), GroupError> {
+        let mut change = false;
         if ban {
             if self.is_admin(acct) {
                 return Err(GroupError::UserIsAdmin);
             }
-            self.banned_users.insert(acct.to_owned());
+            // Banned user is also kicked
+            change |= self.member_users.remove(acct);
+            change |= self.banned_users.insert(acct.to_owned());
         } else {
-            self.banned_users.remove(acct);
+            change |= self.banned_users.remove(acct);
+        }
+        if change {
+            self.mark_dirty();
         }
         Ok(())
     }
 
     pub(crate) fn ban_server(&mut self, server: &str, ban: bool) -> Result<(), GroupError> {
-        if ban {
+        let changed = if ban {
             for acct in &self.admin_users {
                 let acct_server = acct_to_server(acct);
                 if acct_server == server {
                     return Err(GroupError::AdminsOnServer);
                 }
             }
-            self.banned_servers.insert(server.to_owned());
+            self.banned_servers.insert(server.to_owned())
         } else {
-            self.banned_servers.remove(server);
+            self.banned_servers.remove(server)
+        };
+        if changed {
+            self.mark_dirty();
         }
-        self.mark_dirty();
         Ok(())
     }
 
     pub(crate) fn add_tag(&mut self, tag: &str) {
-        self.group_tags.insert(tag.to_string());
-        self.mark_dirty();
+        if self.group_tags.insert(tag.to_string()) {
+            self.mark_dirty();
+        }
     }
 
     pub(crate) fn remove_tag(&mut self, tag: &str) {
-        self.group_tags.remove(tag);
-        self.mark_dirty();
+        if self.group_tags.remove(tag) {
+            self.mark_dirty();
+        }
     }
 
     pub(crate) fn is_tag_followed(&self, tag: &str) -> bool {
@@ -245,8 +265,10 @@ impl GroupConfig {
     }
 
     pub(crate) fn set_member_only(&mut self, member_only: bool) {
+        if self.member_only != member_only {
+            self.mark_dirty();
+        }
         self.member_only = member_only;
-        self.mark_dirty();
     }
 
     pub(crate) fn is_member_only(&self) -> bool {