Major overhaul: more generics!

src/bin/dummy.rs

@@ -1,17 +1,37 @@
-use my_tasks::client::Client;
+use std::path::Path;
+
+use my_tasks::{client::Client, traits::CalDavSource};
+use my_tasks::cache::Cache;
+use my_tasks::Provider;
 use my_tasks::settings::URL;
 use my_tasks::settings::USERNAME;
 use my_tasks::settings::PASSWORD;
 
 
+const CACHE_FILE: &str = "caldav_cache.json";
+
 #[tokio::main]
 async fn main() {
-    // This is just a function to silence "unused function" warning
+    /*
+    let cache_path = Path::new(CACHE_FILE);
 
     let mut client = Client::new(URL, USERNAME, PASSWORD).unwrap();
-    let calendars = client.get_calendars().await.unwrap();
-    let _ = calendars.iter()
-        .map(|cal| println!("  {}\t{}", cal.name(), cal.url().as_str()))
-        .collect::<()>();
-    let _ = client.get_tasks(&calendars[3].url()).await;
+    let mut cache = match Cache::from_file(&cache_path) {
+        Ok(cache) => cache,
+        Err(err) => {
+            log::warn!("Invalid cache file: {}. Using a default cache", err);
+            Cache::new(&cache_path)
+        }
+    };
+    let provider = Provider::new(client, cache);
+
+    let cals = provider.local().get_calendars().await.unwrap();
+    println!("---- before sync -----");
+    my_tasks::utils::print_calendar_list(cals);
+
+    provider.sync();
+    println!("---- after sync -----");
+    my_tasks::utils::print_calendar_list(cals);
+    */
+
 }

src/cache.rs

@@ -11,7 +11,8 @@ use chrono::{DateTime, Utc};
 
 use crate::traits::CalDavSource;
 use crate::traits::SyncSlave;
-use crate::Calendar;
+use crate::traits::PartialCalendar;
+use crate::calendar::cached_calendar::CachedCalendar;
 
 
 /// A CalDAV source that stores its item in a local file
@@ -23,7 +24,7 @@ pub struct Cache {
 
 #[derive(Default, Debug, PartialEq, Serialize, Deserialize)]
 struct CachedData {
-    calendars: Vec<Calendar>,
+    calendars: Vec<CachedCalendar>,
     last_sync: Option<DateTime<Utc>>,
 }
 
@@ -76,33 +77,33 @@ impl Cache {
     }
 
 
-    pub fn add_calendar(&mut self, calendar: Calendar) {
+    pub fn add_calendar(&mut self, calendar: CachedCalendar) {
         self.data.calendars.push(calendar);
     }
 }
 
 #[async_trait]
-impl CalDavSource for Cache {
-    async fn get_calendars(&self) -> Result<&Vec<Calendar>, Box<dyn Error>> {
+impl CalDavSource<CachedCalendar> for Cache {
+    async fn get_calendars(&self) -> Result<&Vec<CachedCalendar>, Box<dyn Error>> {
         Ok(&self.data.calendars)
     }
 
-    async fn get_calendars_mut(&mut self) -> Result<Vec<&mut Calendar>, Box<dyn Error>> {
+    async fn get_calendars_mut(&mut self) -> Result<Vec<&mut CachedCalendar>, Box<dyn Error>> {
         Ok(
             self.data.calendars.iter_mut()
             .collect()
         )
     }
 
-    async fn get_calendar(&self, url: Url) -> Option<&Calendar> {
+    async fn get_calendar(&self, url: Url) -> Option<&CachedCalendar> {
         for cal in &self.data.calendars {
             if cal.url() == &url {
                 return Some(cal);
-}
+            }
         }
         return None;
     }
-    async fn get_calendar_mut(&mut self, url: Url) -> Option<&mut Calendar> {
+    async fn get_calendar_mut(&mut self, url: Url) -> Option<&mut CachedCalendar> {
         for cal in &mut self.data.calendars {
             if cal.url() == &url {
                 return Some(cal);
@@ -135,7 +136,7 @@ mod tests {
 
         let mut cache = Cache::new(&cache_path);
 
-        let cal1 = Calendar::new("shopping list".to_string(),
+        let cal1 = CachedCalendar::new("shopping list".to_string(),
                                 Url::parse("https://caldav.com/shopping").unwrap(),
                             SupportedComponents::TODO);
         cache.add_calendar(cal1);

src/calendar/cached_calendar.rs

@@ -0,0 +1,124 @@
+use std::convert::TryFrom;
+use std::error::Error;
+use std::collections::HashMap;
+use std::collections::BTreeMap;
+
+use url::Url;
+use serde::{Deserialize, Serialize};
+use chrono::{DateTime, Utc};
+
+use crate::traits::{PartialCalendar, CompleteCalendar};
+use crate::calendar::{SupportedComponents, SearchFilter};
+use crate::Item;
+use crate::item::ItemId;
+
+
+/// A calendar used by the [`cache`](crate::cache) module
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct CachedCalendar {
+    name: String,
+    url: Url,
+    supported_components: SupportedComponents,
+
+    items: Vec<Item>,
+    deleted_items: BTreeMap<DateTime<Utc>, ItemId>,
+}
+
+impl CachedCalendar {
+    /// Create a new calendar
+    pub fn new(name: String, url: Url, supported_components: SupportedComponents) -> Self {
+        Self {
+            name, url, supported_components,
+            items: Vec::new(),
+            deleted_items: BTreeMap::new(),
+        }
+    }
+
+    /// Returns the list of tasks that this calendar contains
+    pub fn get_tasks(&self) -> HashMap<ItemId, &Item> {
+        self.get_tasks_modified_since(None)
+    }
+    /// 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))
+    }
+}
+
+impl PartialCalendar for CachedCalendar {
+    fn name(&self) -> &str {
+        &self.name
+    }
+
+    fn url(&self) -> &Url {
+        &self.url
+    }
+
+    fn supported_components(&self) -> SupportedComponents {
+        self.supported_components
+    }
+
+    fn add_item(&mut self, item: Item) {
+        self.items.push(item);
+    }
+
+    fn delete_item(&mut self, item_id: &ItemId) {
+        self.items.retain(|i| i.id() != item_id);
+        self.deleted_items.insert(Utc::now(), item_id.clone());
+    }
+
+    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();
+
+        for item in &self.items {
+            match since {
+                None => (),
+                Some(since) => if item.last_modified() < since {
+                    continue;
+                },
+            }
+
+            match filter {
+                SearchFilter::Tasks => {
+                    if item.is_task() == false {
+                        continue;
+                    }
+                },
+                _ => (),
+            }
+
+            map.insert(item.id().clone(), item);
+        }
+
+        map
+    }
+
+    fn get_item_by_id_mut(&mut self, id: &ItemId) -> Option<&mut Item> {
+        for item in &mut self.items {
+            if item.id() == id {
+                return Some(item);
+            }
+        }
+        return None;
+    }
+
+    fn find_missing_items_compared_to(&self, other: &dyn PartialCalendar) -> Vec<ItemId> {
+        unimplemented!("todo");
+    }
+}
+
+impl CompleteCalendar for CachedCalendar {
+    /// Returns the items that have been deleted after `since`
+    fn get_items_deleted_since(&self, since: DateTime<Utc>) -> Vec<ItemId> {
+        self.deleted_items.range(since..)
+        .map(|(_key, value)| value.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)
+    }
+
+}

src/calendar/mod.rs

@@ -1,3 +1,5 @@
+pub mod cached_calendar;
+
 use std::convert::TryFrom;
 use std::error::Error;
 use std::collections::HashMap;
@@ -66,116 +68,3 @@ impl Default for SearchFilter {
         SearchFilter::All
     }
 }
-
-/// A Caldav Calendar
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
-pub struct Calendar {
-    name: String,
-    url: Url,
-    supported_components: SupportedComponents,
-
-    items: Vec<Item>,
-    deleted_items: BTreeMap<DateTime<Utc>, ItemId>,
-}
-
-impl Calendar {
-    /// Create a new calendar
-    pub fn new(name: String, url: Url, supported_components: SupportedComponents) -> Self {
-        Self {
-            name, url, supported_components,
-            items: Vec::new(),
-            deleted_items: BTreeMap::new(),
-        }
-    }
-
-    /// Returns the calendar name
-    pub fn name(&self) -> &str {
-        &self.name
-    }
-
-    /// Returns the calendar URL
-    pub fn url(&self) -> &Url {
-        &self.url
-    }
-
-    /// Returns whether this calDAV calendar supports to-do items
-    pub fn supports_todo(&self) -> bool {
-        self.supported_components.contains(SupportedComponents::TODO)
-    }
-
-    /// Returns whether this calDAV calendar supports calendar items
-    pub fn supports_events(&self) -> bool {
-        self.supported_components.contains(SupportedComponents::EVENT)
-    }
-
-    /// Add an item into this calendar
-    pub fn add_item(&mut self, item: Item) {
-        self.items.push(item);
-    }
-
-    /// Remove an item from this calendar
-    pub fn delete_item(&mut self, item_id: &ItemId) {
-        self.items.retain(|i| i.id() != item_id);
-        self.deleted_items.insert(Utc::now(), item_id.clone());
-    }
-
-    /// Returns the list of items that this calendar contains
-    pub fn get_items(&self) -> HashMap<ItemId, &Item> {
-        self.get_items_modified_since(None, None)
-    }
-    /// Returns the items that have been last-modified after `since`
-    pub 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();
-
-        for item in &self.items {
-            match since {
-                None => (),
-                Some(since) => if item.last_modified() < since {
-                    continue;
-                },
-            }
-
-            match filter {
-                SearchFilter::Tasks => {
-                    if item.is_task() == false {
-                        continue;
-                    }
-                },
-                _ => (),
-            }
-
-            map.insert(item.id().clone(), item);
-        }
-
-        map
-    }
-
-    /// Returns the items that have been deleted after `since`
-    pub fn get_items_deleted_since(&self, since: DateTime<Utc>) -> Vec<ItemId> {
-        self.deleted_items.range(since..)
-        .map(|(_key, value)| value.clone())
-        .collect()
-    }
-
-    /// Returns a particular item
-    pub fn get_item_by_id_mut(&mut self, id: &ItemId) -> Option<&mut Item> {
-        for item in &mut self.items {
-            if item.id() == id {
-                return Some(item);
-            }
-        }
-        return None;
-    }
-
-
-    /// Returns the list of tasks that this calendar contains
-    pub fn get_tasks(&self) -> HashMap<ItemId, &Item> {
-        self.get_tasks_modified_since(None)
-    }
-    /// 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))
-    }
-}

src/calendar/remote_calendar.rs

@@ -0,0 +1,38 @@
+use crate::traits::PartialCalendar;
+
+/// A CalDAV calendar created by a [`Client`](crate::client::Client).
+pub struct RemoteCalendar {
+    name: String,
+    url: Url,
+    supported_components: SupportedComponents
+}
+
+impl PartialCalendar for RemoteCalendar {
+    fn name(&self) -> &str {
+        &self.name
+    }
+
+    fn supported_components(&self) -> crate::calendar::SupportedComponents {
+        self.supported_components
+    }
+
+    fn get_items_modified_since(&self, since: Option<DateTime<Utc>>, filter: Option<crate::calendar::SearchFilter>)
+        -> HashMap<ItemId, &Item>
+    {
+        log::error!("Not implemented");
+        HashMap::new()
+    }
+
+    fn get_item_by_id_mut(&mut self, id: &ItemId) -> Option<&mut Item> {
+        log::error!("Not implemented");
+        None
+    }
+
+    fn add_item(&mut self, item: Item) {
+        log::error!("Not implemented");
+    }
+
+    fn delete_item(&mut self, item_id: &ItemId) {
+        log::error!("Not implemented");
+    }
+}

src/client.rs

@@ -2,14 +2,19 @@
 
 use std::error::Error;
 use std::convert::TryFrom;
+use std::sync::Mutex;
 
 use reqwest::Method;
 use reqwest::header::CONTENT_TYPE;
 use minidom::Element;
 use url::Url;
+use async_trait::async_trait;
 
 use crate::utils::{find_elem, find_elems};
-use crate::calendar::Calendar;
+use crate::calendar::cached_calendar::CachedCalendar;
+use crate::traits::PartialCalendar;
+use crate::traits::CalDavSource;
+
 
 static DAVCLIENT_BODY: &str = r#"
     <d:propfind xmlns:d="DAV:">
@@ -69,7 +74,7 @@ pub struct Client {
 
     principal: Option<Url>,
     calendar_home_set: Option<Url>,
-    calendars: Option<Vec<Calendar>>,
+    calendars: Option<Vec<CachedCalendar>>,
 }
 
 impl Client {
@@ -148,7 +153,7 @@ impl Client {
     }
 
     /// Return the list of calendars, or fetch from server if not known yet
-    pub async fn get_calendars(&mut self) -> Result<Vec<Calendar>, Box<dyn Error>> {
+    pub async fn get_calendars(&mut self) -> Result<Vec<CachedCalendar>, Box<dyn Error>> {
         if let Some(c) = &self.calendars {
             return Ok(c.to_vec());
         }
@@ -206,7 +211,7 @@ impl Client {
                 },
                 Ok(sc) => sc,
             };
-            let this_calendar = Calendar::new(display_name, this_calendar_url, supported_components);
+            let this_calendar = CachedCalendar::new(display_name, this_calendar_url, supported_components);
             log::info!("Found calendar {}", this_calendar.name());
             calendars.push(this_calendar);
         }

src/lib.rs

@@ -11,7 +11,7 @@
 pub mod traits;
 
 pub mod calendar;
-pub use calendar::Calendar;
+pub use calendar::cached_calendar::CachedCalendar;
 mod item;
 pub use item::Item;
 mod task;

src/provider.rs

@@ -1,39 +1,49 @@
 //! This modules abstracts data sources and merges them in a single virtual one
 
-use std::error::Error;
+use std::{error::Error, marker::PhantomData};
 
 use chrono::{DateTime, Utc};
 
-use crate::traits::CalDavSource;
+use crate::traits::{CalDavSource, CompleteCalendar};
 use crate::traits::SyncSlave;
-use crate::Calendar;
+use crate::traits::PartialCalendar;
+use crate::calendar::cached_calendar::CachedCalendar;
 use crate::Item;
 use crate::item::ItemId;
 
 
 /// A data source that combines two `CalDavSources` (usually a server and a local cache), which is able to sync both sources.
-pub struct Provider<S, L>
+pub struct Provider<L, T, S, U>
 where
-    S: CalDavSource,
-    L: CalDavSource + SyncSlave,
+    L: CalDavSource<T> + SyncSlave,
+    T: CompleteCalendar,
+    S: CalDavSource<U>,
+    U: PartialCalendar,
 {
     /// The remote server
     server: S,
     /// The local cache
     local: L,
+
+    phantom_t: PhantomData<T>,
+    phantom_u: PhantomData<U>,
 }
 
-impl<S,L> Provider<S, L>
+impl<L, T, S, U> Provider<L, T, S, U>
 where
-    S: CalDavSource,
-    L: CalDavSource + SyncSlave,
+    L: CalDavSource<T> + SyncSlave,
+    T: CompleteCalendar,
+    S: CalDavSource<U>,
+    U: PartialCalendar,
 {
     /// Create a provider.
     ///
     /// `server` is usually a [`Client`](crate::client::Client), `local` is usually a [`Cache`](crate::cache::Cache).
     /// However, both can be interchangeable. The only difference is that `server` always wins in case of a sync conflict
     pub fn new(server: S, local: L) -> Self {
-        Self { server, local }
+        Self { server, local,
+            phantom_t: PhantomData, phantom_u: PhantomData,
+        }
     }
 
     /// Returns the data source described as the `server`
@@ -62,9 +72,9 @@ where
                 Some(cal) => cal,
             };
 
-            let server_mod = cal_server.get_tasks_modified_since(last_sync);
+            let server_mod = cal_server.get_items_modified_since(last_sync, None);
             let server_del = match last_sync {
-                Some(date) => cal_server.get_items_deleted_since(date),
+                Some(date) => cal_server.find_missing_items_compared_to(cal_local),
                 None => Vec::new(),
             };
             let local_del = match last_sync {
@@ -91,7 +101,7 @@ where
 
 
             // Push local changes to the server
-            let local_mod = cal_local.get_tasks_modified_since(last_sync);
+            let local_mod = cal_local.get_items_modified_since(last_sync, None);
 
             let mut tasks_to_add_to_server = Vec::new();
             let mut tasks_id_to_remove_from_server = Vec::new();
@@ -122,14 +132,14 @@ where
 }
 
 
-fn move_to_calendar(items: &mut Vec<Item>, calendar: &mut Calendar) {
+fn move_to_calendar<C: PartialCalendar>(items: &mut Vec<Item>, calendar: &mut C) {
     while items.len() > 0 {
         let item = items.remove(0);
         calendar.add_item(item);
     }
 }
 
-fn remove_from_calendar(ids: &Vec<ItemId>, calendar: &mut Calendar) {
+fn remove_from_calendar<C: PartialCalendar>(ids: &Vec<ItemId>, calendar: &mut C) {
     for id in ids {
         log::info!("  Removing {:?} from local calendar", id);
         calendar.delete_item(id);

src/traits.rs

@@ -1,19 +1,22 @@
 use std::error::Error;
+use std::collections::HashMap;
 
 use async_trait::async_trait;
 use url::Url;
 use chrono::{DateTime, Utc};
 
-use crate::Calendar;
+use crate::calendar::cached_calendar::CachedCalendar;
+use crate::item::Item;
+use crate::item::ItemId;
 
 #[async_trait]
-pub trait CalDavSource {
+pub trait CalDavSource<T: PartialCalendar> {
     /// Returns the current calendars that this source contains
     /// This function may trigger an update (that can be a long process, or that can even fail, e.g. in case of a remote server)
-    async fn get_calendars(&self) -> Result<&Vec<Calendar>, Box<dyn Error>>;
+    async fn get_calendars(&self) -> Result<&Vec<T>, Box<dyn Error>>;
     /// Returns the current calendars that this source contains
     /// This function may trigger an update (that can be a long process, or that can even fail, e.g. in case of a remote server)
-    async fn get_calendars_mut(&mut self) -> Result<Vec<&mut Calendar>, Box<dyn Error>>;
+    async fn get_calendars_mut(&mut self) -> Result<Vec<&mut T>, Box<dyn Error>>;
 
     //
     //
@@ -21,9 +24,9 @@ pub trait CalDavSource {
     // TODO: search key should be a reference
     //
     /// Returns the calendar matching the URL
-    async fn get_calendar(&self, url: Url) -> Option<&Calendar>;
+    async fn get_calendar(&self, url: Url) -> Option<&T>;
     /// Returns the calendar matching the URL
-    async fn get_calendar_mut(&mut self, url: Url) -> Option<&mut Calendar>;
+    async fn get_calendar_mut(&mut self, url: Url) -> Option<&mut T>;
 
 }
 
@@ -34,3 +37,61 @@ pub trait SyncSlave {
     /// Update the last sync timestamp to now, or to a custom time in case `timepoint` is `Some`
     fn update_last_sync(&mut self, timepoint: Option<DateTime<Utc>>);
 }
+
+/// A calendar we have a partial knowledge of.
+///
+/// Usually, this is a calendar from a remote source, that is synced to a CompleteCalendar
+pub trait PartialCalendar {
+    /// Returns the calendar name
+    fn name(&self) -> &str;
+
+    /// Returns the calendar URL
+    fn url(&self) -> &Url;
+
+    /// Returns the supported kinds of components for this calendar
+    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>)
+        -> HashMap<ItemId, &Item>;
+
+    /// Returns a particular item
+    fn get_item_by_id_mut(&mut self, id: &ItemId) -> Option<&mut Item>;
+
+    /// Add an item into this calendar
+    fn add_item(&mut self, item: Item);
+
+    /// Remove an item from this calendar
+    fn delete_item(&mut self, item_id: &ItemId);
+
+    /// Compares with another calendar and lists missing items
+    /// This function is a sort of replacement for `get_items_deleted_since`, that is not available on PartialCalendars
+    fn find_missing_items_compared_to(&self, other: &dyn PartialCalendar) -> Vec<ItemId>;
+}
+
+/// A calendar we always know everything about.
+///
+/// Usually, this is a calendar fully stored on a local disk
+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>) -> Vec<ItemId>;
+
+    /// Returns the list of items that this calendar contains
+    fn get_items(&self) -> HashMap<ItemId, &Item>;
+}
+
+
+
+impl PartialCalendar {
+    /// Returns whether this calDAV calendar supports to-do items
+    pub fn supports_todo(&self) -> bool {
+        self.supported_components().contains(crate::calendar::SupportedComponents::TODO)
+    }
+
+    /// Returns whether this calDAV calendar supports calendar items
+    pub fn supports_events(&self) -> bool {
+        self.supported_components().contains(crate::calendar::SupportedComponents::EVENT)
+    }
+}

src/utils.rs

@@ -2,7 +2,7 @@
 
 use minidom::Element;
 
-use crate::Calendar;
+use crate::traits::CompleteCalendar;
 
 /// Walks an XML tree and returns every element that has the given name
 pub fn find_elems<S: AsRef<str>>(root: &Element, searched_name: S) -> Vec<&Element> {
@@ -53,7 +53,7 @@ pub fn print_xml(element: &Element) {
 }
 
 /// A debug utility that pretty-prints calendars
-pub fn print_calendar_list(cals: &Vec<Calendar>) {
+pub fn print_calendar_list<C: CompleteCalendar>(cals: &Vec<C>) {
     for cal in cals {
         println!("CAL {}", cal.url());
         for (_, item) in cal.get_items() {

tests/caldav_client.rs

@@ -7,6 +7,8 @@ use minidom::Element;
 use url::Url;
 
 use my_tasks::client::Client;
+use my_tasks::traits::PartialCalendar;
+
 use my_tasks::settings::URL;
 use my_tasks::settings::USERNAME;
 use my_tasks::settings::PASSWORD;
@@ -24,7 +26,7 @@ static EXAMPLE_TASKS_BODY_LAST_MODIFIED: &str = r#"
     <C:comp-filter name="VCALENDAR">
       <C:comp-filter name="VTODO">
         <C:prop-filter name="LAST-MODIFIED">
-            <C:time-range start="20210220T000000Z"
+            <C:time-range start="20210228T002308Z"
                           end="20260105T000000Z"/>
         </C:prop-filter>
       </C:comp-filter>
@@ -45,7 +47,7 @@ async fn test_client() {
         .map(|cal| println!("  {}\t{}", cal.name(), cal.url().as_str()))
         .collect::<()>();
 
-    let _ = client.get_tasks(&calendars[3].url()).await;
+    let _ = client.get_tasks(&calendars[0].url()).await;
 }
 
 #[tokio::test]

tests/sync.rs

@@ -4,10 +4,11 @@ use chrono::{Utc, TimeZone};
 use url::Url;
 
 use my_tasks::traits::CalDavSource;
+use my_tasks::traits::{PartialCalendar, CompleteCalendar};
 use my_tasks::cache::Cache;
 use my_tasks::Item;
 use my_tasks::Task;
-use my_tasks::Calendar;
+use my_tasks::calendar::cached_calendar::CachedCalendar;
 use my_tasks::Provider;
 
 #[tokio::test]
@@ -44,7 +45,7 @@ async fn test_sync() {
 /// * X': name has been modified since the last sync
 /// * F'/F'': name conflict
 /// * G✓: task has been marked as completed
-async fn populate_test_provider() -> Provider<Cache, Cache> {
+async fn populate_test_provider() -> Provider<Cache, CachedCalendar, Cache, CachedCalendar> {
     let mut server = Cache::new(&PathBuf::from(String::from("server.json")));
     let mut local = Cache::new(&PathBuf::from(String::from("local.json")));
 
@@ -80,7 +81,7 @@ async fn populate_test_provider() -> Provider<Cache, Cache> {
 
     // Step 1
     // Build the calendar as it was at the time of the sync
-    let mut calendar = Calendar::new("a list".into(), Url::parse("http://todo.list/cal").unwrap(), my_tasks::calendar::SupportedComponents::TODO);
+    let mut calendar = CachedCalendar::new("a list".into(), Url::parse("http://todo.list/cal").unwrap(), my_tasks::calendar::SupportedComponents::TODO);
     calendar.add_item(task_a);
     calendar.add_item(task_b);
     calendar.add_item(task_c);