More async functions in traits

src/cache.rs

@@ -143,8 +143,8 @@ impl Cache {
                 None => return Err("should not happen, we've just tested keys are the same".into()),
             };
 
-                    let items_l = cal_l.get_items();
-                    let items_r = cal_r.get_items();
+            let items_l = cal_l.get_items().await;
+            let items_r = cal_r.get_items().await;
 
                     if keys_are_the_same(&items_l, &items_r) == false {
                 log::debug!("Different keys for items");

src/calendar/cached_calendar.rs

@@ -4,6 +4,7 @@ use std::error::Error;
 
 use serde::{Deserialize, Serialize};
 use chrono::{DateTime, Utc};
+use async_trait::async_trait;
 
 use crate::traits::{PartialCalendar, CompleteCalendar};
 use crate::calendar::{CalendarId, SupportedComponents, SearchFilter};
@@ -33,15 +34,16 @@ impl CachedCalendar {
     }
 
     /// Returns the list of tasks that this calendar contains
-    pub fn get_tasks(&self) -> HashMap<ItemId, &Item> {
-        self.get_tasks_modified_since(None)
+    pub async fn get_tasks(&self) -> HashMap<ItemId, &Item> {
+        self.get_tasks_modified_since(None).await
     }
     /// Returns the tasks that have been last-modified after `since`
-    pub fn get_tasks_modified_since(&self, since: Option<DateTime<Utc>>) -> HashMap<ItemId, &Item> {
-        self.get_items_modified_since(since, Some(SearchFilter::Tasks))
+    pub async fn get_tasks_modified_since(&self, since: Option<DateTime<Utc>>) -> HashMap<ItemId, &Item> {
+        self.get_items_modified_since(since, Some(SearchFilter::Tasks)).await
     }
 }
 
+#[async_trait]
 impl PartialCalendar for CachedCalendar {
     fn name(&self) -> &str {
         &self.name
@@ -67,7 +69,7 @@ impl PartialCalendar for CachedCalendar {
         Ok(())
     }
 
-    fn get_items_modified_since(&self, since: Option<DateTime<Utc>>, filter: Option<SearchFilter>) -> HashMap<ItemId, &Item> {
+    async fn get_items_modified_since(&self, since: Option<DateTime<Utc>>, filter: Option<SearchFilter>) -> HashMap<ItemId, &Item> {
         let filter = filter.unwrap_or_default();
 
         let mut map = HashMap::new();
@@ -104,17 +106,18 @@ impl PartialCalendar for CachedCalendar {
     }
 }
 
+#[async_trait]
 impl CompleteCalendar for CachedCalendar {
     /// Returns the items that have been deleted after `since`
-    fn get_items_deleted_since(&self, since: DateTime<Utc>) -> HashSet<ItemId> {
+    async fn get_items_deleted_since(&self, since: DateTime<Utc>) -> HashSet<ItemId> {
         self.deleted_items.range(since..)
             .map(|(_key, id)| id.clone())
             .collect()
     }
 
     /// Returns the list of items that this calendar contains
-    fn get_items(&self) -> HashMap<ItemId, &Item> {
-        self.get_items_modified_since(None, None)
+    async fn get_items(&self) -> HashMap<ItemId, &Item> {
+        self.get_items_modified_since(None, None).await
     }
 
 }

src/calendar/remote_calendar.rs

@@ -3,6 +3,7 @@ use std::error::Error;
 
 use url::Url;
 use chrono::{DateTime, Utc};
+use async_trait::async_trait;
 
 use crate::traits::PartialCalendar;
 use crate::calendar::SupportedComponents;
@@ -26,6 +27,7 @@ impl RemoteCalendar {
     }
 }
 
+#[async_trait]
 impl PartialCalendar for RemoteCalendar {
     fn name(&self) -> &str { &self.name }
     fn id(&self) -> &CalendarId { &self.url }
@@ -34,7 +36,7 @@ impl PartialCalendar for RemoteCalendar {
     }
 
     /// Returns the items that have been last-modified after `since`
-    fn get_items_modified_since(&self, _since: Option<DateTime<Utc>>, _filter: Option<crate::calendar::SearchFilter>)
+    async fn get_items_modified_since(&self, since: Option<DateTime<Utc>>, _filter: Option<crate::calendar::SearchFilter>)
         -> HashMap<ItemId, &Item>
     {
         log::error!("Not implemented");

src/provider.rs

@@ -80,7 +80,7 @@ where
             // Step 1 - "Server always wins", so a delteion from the server must be applied locally, even if it was locally modified.
             let mut local_dels = match last_sync {
                 None => HashSet::new(),
-                Some(date) => cal_local.get_items_deleted_since(date),
+                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());
@@ -97,8 +97,8 @@ where
             }
 
             // Step 2 - Compare both changesets...
-            let server_mods = cal_server.get_items_modified_since(last_sync, None);
-            let mut local_mods = cal_local.get_items_modified_since(last_sync, None);
+            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();

src/traits.rs

@@ -29,6 +29,7 @@ pub trait SyncSlave {
 /// A calendar we have a partial knowledge of.
 ///
 /// Usually, this is a calendar from a remote source, that is synced to a CompleteCalendar
+#[async_trait]
 pub trait PartialCalendar {
     /// Returns the calendar name
     fn name(&self) -> &str;
@@ -40,7 +41,7 @@ pub trait PartialCalendar {
     fn supported_components(&self) -> crate::calendar::SupportedComponents;
 
     /// Returns the items that have been last-modified after `since`
-    fn get_items_modified_since(&self, since: Option<DateTime<Utc>>, filter: Option<crate::calendar::SearchFilter>)
+    async fn get_items_modified_since(&self, since: Option<DateTime<Utc>>, filter: Option<crate::calendar::SearchFilter>)
         -> HashMap<ItemId, &Item>;
 
     /// Get the IDs of all current items in this calendar
@@ -76,13 +77,14 @@ pub trait PartialCalendar {
 /// A calendar we always know everything about.
 ///
 /// Usually, this is a calendar fully stored on a local disk
+#[async_trait]
 pub trait CompleteCalendar : PartialCalendar {
     /// Returns the items that have been deleted after `since`
     ///
     /// See also [`PartialCalendar::get_items_deleted_since`]
-    fn get_items_deleted_since(&self, since: DateTime<Utc>) -> HashSet<ItemId>;
+    async fn get_items_deleted_since(&self, since: DateTime<Utc>) -> HashSet<ItemId>;
 
     /// Returns the list of items that this calendar contains
-    fn get_items(&self) -> HashMap<ItemId, &Item>;
+    async fn get_items(&self) -> HashMap<ItemId, &Item>;
 }
 

src/utils.rs

@@ -58,13 +58,13 @@ pub fn print_xml(element: &Element) {
 }
 
 /// A debug utility that pretty-prints calendars
-pub fn print_calendar_list<C>(cals: &HashMap<CalendarId, Arc<Mutex<C>>>)
+pub async fn print_calendar_list<C>(cals: &HashMap<CalendarId, Arc<Mutex<C>>>)
 where
     C: CompleteCalendar,
 {
     for (id, cal) in cals {
         println!("CAL {}", id);
-        for (_, item) in cal.lock().unwrap().get_items() {
+        for (_, item) in cal.lock().unwrap().get_items().await {
             print_task(item);
         }
     }

tests/caldav_client.rs

@@ -37,20 +37,21 @@ static EXAMPLE_TASKS_BODY_LAST_MODIFIED: &str = r#"
 "#;
 
 #[tokio::test]
-async fn test_client() {
+async fn show_calendars() {
     let _ = env_logger::builder().is_test(true).try_init();
 
     let client = Client::new(URL, USERNAME, PASSWORD).unwrap();
     let calendars = client.get_calendars().await.unwrap();
 
-    let mut last_cal = None;
     println!("Calendars:");
-    let _ = calendars.iter()
-        .map(|(id, cal)| {
-            println!("  {}\t{}", cal.lock().unwrap().name(), id.as_str());
-            last_cal = Some(id);
-        })
-        .collect::<()>();
+    for (id, calendar) in calendars.iter() {
+        let cal = calendar.lock().unwrap();
+        println!("  {}\t{}", cal.name(), id.as_str());
+        println!("  Most recent changes:");
+        for (_id, task) in cal.get_items_modified_since(None, None).await {
+            my_tasks::utils::print_task(task);
+        }
+    }
 }
 
 #[tokio::test]

tests/sync.rs

@@ -24,10 +24,10 @@ async fn test_regular_sync() {
 
     let cals_server = provider.server().get_calendars().await.unwrap();
     println!("----Server-------");
-    my_tasks::utils::print_calendar_list(&cals_server);
+    my_tasks::utils::print_calendar_list(&cals_server).await;
     let cals_local = provider.local().get_calendars().await.unwrap();
     println!("\n----Local-------");
-    my_tasks::utils::print_calendar_list(&cals_local);
+    my_tasks::utils::print_calendar_list(&cals_local).await;
 
     assert!(provider.server().has_same_contents_than(provider.local()).await.unwrap());