Removed sync implementation

src/provider.rs

@@ -57,7 +57,7 @@ where
     /// In case of conflicts (the same item has been modified on both ends since the last sync, `server` always wins)
     pub async fn sync(&mut self) -> Result<(), Box<dyn Error>> {
         log::info!("Starting a sync.");
-/*
+
         let cals_server = self.server.get_calendars().await?;
         for (id, cal_server) in cals_server {
             let mut cal_server = cal_server.lock().unwrap();
@@ -71,68 +71,16 @@ where
             };
             let mut cal_local = cal_local.lock().unwrap();
 
-            // Step 1 - "Server always wins", so a deletion from the server must be applied locally, even if it was locally modified.
-            let mut local_dels = match cal_local.get_last_sync() {
-                None => HashSet::new(),
-                Some(date) => cal_local.get_items_deleted_since(date).await?,
-            };
-            if last_sync.is_some() {
-                let server_deletions = cal_server.find_deletions_from(cal_local.get_item_ids().await?).await?;
-                for server_del_id in server_deletions {
-                    // Even in case of conflicts, "the server always wins", so it is safe to remove tasks from the local cache as soon as now
-                    if let Err(err) = cal_local.delete_item(&server_del_id).await {
-                        log::error!("Unable to remove local item {}: {}", server_del_id, err);
-                    }
-
-                    if local_dels.contains(&server_del_id) {
-                        local_dels.remove(&server_del_id);
-                }
-            }
-            }
-
-            // Step 2 - Compare both changesets...
-            let server_mods = cal_server.get_items_modified_since(last_sync, None).await?;
-            let mut local_mods = cal_local.get_items_modified_since(last_sync, None).await?;
-
-            // ...import remote changes,...
-            let mut conflicting_tasks = Vec::new();
-            let mut tasks_to_add = Vec::new();
-            for (server_mod_id, server_mod) in server_mods {
-                if local_mods.contains_key(&server_mod_id) {
-                    log::warn!("Conflict for task {} (modified in both sources). Using the server version", server_mod_id);
-                    conflicting_tasks.push(server_mod_id.clone());
-                    local_mods.remove(&server_mod_id);
-                }
-                if local_dels.contains(&server_mod_id) {
-                    log::warn!("Conflict for task {} (modified in the server, deleted locally). Reverting to the server version", server_mod_id);
-                    local_dels.remove(&server_mod_id);
-                }
-                tasks_to_add.push(server_mod.clone());
-            }
-
-            // ...upload local deletions,...
-            for local_del_id in local_dels {
-                if let Err(err) = cal_server.delete_item(&local_del_id).await {
-                    log::error!("Unable to remove remote item {}: {}", local_del_id, err);
-                }
-            }
-
-            // ...and upload local changes
-            for (local_mod_id, local_mod) in local_mods {
-                // Conflicts are no longer in local_mods
-                if let Err(err) = cal_server.delete_item(&local_mod_id).await {
-                    log::error!("Unable to remove remote item (before an update) {}: {}", local_mod_id, err);
-                }
-                // TODO: should I add a .update_item()?
-                cal_server.add_item(local_mod.clone()).await;
-            }
-
-            remove_from_calendar(&conflicting_tasks, &mut (*cal_local)).await;
-            move_to_calendar(&mut tasks_to_add, &mut (*cal_local)).await;
+            // Step 1 - find the differences
+            // let mut local_del = HashSet::new();
+            // let mut remote_del = HashSet::new();
+            // let mut local_changes = HashSet::new();
+            // let mut remote_change = HashSet::new();
+            // let mut local_additions = HashSet::new();
+            // let mut remote_additions = HashSet::new();
+
         }
 
-        self.local.update_last_sync(None);
-*/
         Ok(())
     }
 }