jmap-tasks-client 0.1.2

//! JMAP Tasks — TaskNotification/* method implementations on SessionClient.
//!
//! TaskNotification/set is destroy-only. Any create or update entries from
//! the client would be rejected by the server with `forbidden`, but we
//! expose a typed API that only allows destroy to avoid client-side confusion.

use jmap_types::{Id, State};

use super::{ChangesResponse, GetResponse, QueryChangesResponse, QueryResponse, SetResponse};

impl super::SessionClient {
    /// Fetch TaskNotification objects by IDs (draft-tasks-06 §5.2).
    ///
    /// If `ids` is `None`, the server returns all TaskNotifications for the account,
    /// SUBJECT TO the server's `maxObjectsInGet` cap (RFC 8620 §5.1).
    /// For production use, scope the result set via the corresponding
    /// /query method first and pass explicit ids here to avoid
    /// `requestTooLarge` errors when the account holds more objects
    /// than the cap.
    ///
    /// # Errors
    ///
    /// - [`ClientError::InvalidSession`](jmap_base_client::ClientError::InvalidSession)
    ///   if the bound session has no primary account for
    ///   `urn:ietf:params:jmap:tasks`.
    /// - Any transport / protocol variant returned by
    ///   [`JmapClient::call`](jmap_base_client::JmapClient::call):
    ///   [`Http`](jmap_base_client::ClientError::Http),
    ///   [`Parse`](jmap_base_client::ClientError::Parse),
    ///   [`AuthFailed`](jmap_base_client::ClientError::AuthFailed),
    ///   [`MethodError`](jmap_base_client::ClientError::MethodError)
    ///   (wraps RFC 8620 §3.6.2 method-level errors such as
    ///   `accountNotFound`, `invalidArguments`, `serverFail`),
    ///   [`MethodNotFound`](jmap_base_client::ClientError::MethodNotFound),
    ///   [`ResponseTooLarge`](jmap_base_client::ClientError::ResponseTooLarge),
    ///   or
    ///   [`UnexpectedResponse`](jmap_base_client::ClientError::UnexpectedResponse).
    pub async fn task_notification_get(
        &self,
        ids: Option<&[Id]>,
        properties: Option<&[&str]>,
    ) -> Result<GetResponse<jmap_tasks_types::TaskNotification>, jmap_base_client::ClientError>
    {
        let (api_url, account_id) = self.session_parts()?;
        // Omit `ids` / `properties` when None — see the matching comment on
        // `task_list_get` for the rationale (consistent with set/changes/query).
        let mut args = serde_json::json!({ "accountId": account_id });
        if let Some(id_slice) = ids {
            args["ids"] = serde_json::to_value(id_slice).expect("Id slice Serialize is infallible");
        }
        if let Some(props) = properties {
            args["properties"] =
                serde_json::to_value(props).expect("&[&str] Serialize is infallible");
        }
        let req = super::build_request("TaskNotification/get", args, super::USING_TASKS);
        let resp = self.call_internal(api_url, &req).await?;
        jmap_base_client::extract_response(&resp, super::CALL_ID)
    }

    /// Fetch changes to TaskNotification objects since `since_state`
    /// (draft-tasks-06 §5.3).
    ///
    /// # Errors
    ///
    /// - [`ClientError::InvalidArgument`](jmap_base_client::ClientError::InvalidArgument)
    ///   if `since_state` is the empty string (defence-in-depth —
    ///   `State` constructed via [`State::from`](jmap_types::State::from)
    ///   accepts empty strings, but an empty `sinceState` is never
    ///   useful and would otherwise generate a wasted round-trip).
    /// - [`ClientError::InvalidSession`](jmap_base_client::ClientError::InvalidSession)
    ///   if the bound session has no primary account for
    ///   `urn:ietf:params:jmap:tasks`.
    /// - Any transport / protocol variant returned by
    ///   [`JmapClient::call`](jmap_base_client::JmapClient::call) — see
    ///   the matching error list on [`Self::task_notification_get`].
    pub async fn task_notification_changes(
        &self,
        since_state: &State,
        max_changes: Option<u64>,
    ) -> Result<ChangesResponse, jmap_base_client::ClientError> {
        // Defence-in-depth: see task_list_changes.
        if since_state.as_ref().is_empty() {
            return Err(jmap_base_client::ClientError::InvalidArgument(
                "task_notification_changes: since_state may not be empty".into(),
            ));
        }
        let (api_url, account_id) = self.session_parts()?;
        let mut args = serde_json::json!({
            "accountId": account_id,
            "sinceState": since_state,
        });
        if let Some(mc) = max_changes {
            args["maxChanges"] = mc.into();
        }
        let req = super::build_request("TaskNotification/changes", args, super::USING_TASKS);
        let resp = self.call_internal(api_url, &req).await?;
        jmap_base_client::extract_response(&resp, super::CALL_ID)
    }

    /// Destroy TaskNotification objects (draft-tasks-06 §5.4).
    ///
    /// **Destroy-only**: TaskNotification/set only supports `destroy`.
    /// The server creates notifications automatically; clients may only remove them.
    ///
    /// Passing an empty `destroy` list is valid and produces an empty /set response.
    ///
    /// # Errors
    ///
    /// - [`ClientError::InvalidSession`](jmap_base_client::ClientError::InvalidSession)
    ///   if the bound session has no primary account for
    ///   `urn:ietf:params:jmap:tasks`.
    /// - Any transport / protocol variant returned by
    ///   [`JmapClient::call`](jmap_base_client::JmapClient::call) — see
    ///   the matching error list on [`Self::task_notification_get`].
    pub async fn task_notification_set(
        &self,
        destroy: Vec<Id>,
    ) -> Result<SetResponse, jmap_base_client::ClientError> {
        let (api_url, account_id) = self.session_parts()?;
        let args = serde_json::json!({
            "accountId": account_id,
            "destroy": destroy,
        });
        let req = super::build_request("TaskNotification/set", args, super::USING_TASKS);
        let resp = self.call_internal(api_url, &req).await?;
        jmap_base_client::extract_response(&resp, super::CALL_ID)
    }

    /// Query TaskNotification IDs with optional filter and sort
    /// (draft-tasks-06 §5.5).
    ///
    /// # Errors
    ///
    /// - [`ClientError::InvalidSession`](jmap_base_client::ClientError::InvalidSession)
    ///   if the bound session has no primary account for
    ///   `urn:ietf:params:jmap:tasks`.
    /// - Any transport / protocol variant returned by
    ///   [`JmapClient::call`](jmap_base_client::JmapClient::call) — see
    ///   the matching error list on [`Self::task_notification_get`].
    ///   RFC 8620 §5.5 defines additional /query method-level errors
    ///   (`anchorNotFound`, `unsupportedFilter`, `unsupportedSort`,
    ///   `tooManyChanges`) that surface as
    ///   [`MethodError`](jmap_base_client::ClientError::MethodError).
    pub async fn task_notification_query(
        &self,
        filter: Option<serde_json::Value>,
        sort: Option<serde_json::Value>,
        position: Option<u64>,
        limit: Option<u64>,
    ) -> Result<QueryResponse, jmap_base_client::ClientError> {
        let (api_url, account_id) = self.session_parts()?;
        let mut args = serde_json::json!({
            "accountId": account_id,
        });
        if let Some(f) = filter {
            args["filter"] = f;
        }
        if let Some(s) = sort {
            args["sort"] = s;
        }
        if let Some(p) = position {
            args["position"] = p.into();
        }
        if let Some(l) = limit {
            args["limit"] = l.into();
        }
        let req = super::build_request("TaskNotification/query", args, super::USING_TASKS);
        let resp = self.call_internal(api_url, &req).await?;
        jmap_base_client::extract_response(&resp, super::CALL_ID)
    }

    /// Fetch query-result changes for TaskNotification since `since_query_state`
    /// (draft-tasks-06 §5.6).
    ///
    /// `filter` and `sort` MUST match the `filter` / `sort` passed to the
    /// original `TaskNotification/query` call that returned
    /// `since_query_state` — RFC 8620 §5.6 is explicit that the server uses
    /// them to compute which entries entered or left the result set.
    ///
    /// `up_to_id` is the highest-index id the client has cached;
    /// `calculate_total` requests the new total result count.
    ///
    /// # Errors
    ///
    /// - [`ClientError::InvalidArgument`](jmap_base_client::ClientError::InvalidArgument)
    ///   if `since_query_state` is the empty string (defence-in-depth
    ///   empty-state guard; see [`Self::task_notification_changes`]).
    /// - [`ClientError::InvalidSession`](jmap_base_client::ClientError::InvalidSession)
    ///   if the bound session has no primary account for
    ///   `urn:ietf:params:jmap:tasks`.
    /// - Any transport / protocol variant returned by
    ///   [`JmapClient::call`](jmap_base_client::JmapClient::call) — see
    ///   the matching error list on [`Self::task_notification_get`].
    ///   RFC 8620 §5.6 also defines `cannotCalculateChanges` (returned
    ///   when the server cannot honour the request given the supplied
    ///   filter / sort); it surfaces as
    ///   [`MethodError`](jmap_base_client::ClientError::MethodError).
    pub async fn task_notification_query_changes(
        &self,
        since_query_state: &State,
        max_changes: Option<u64>,
        filter: Option<serde_json::Value>,
        sort: Option<serde_json::Value>,
        up_to_id: Option<&Id>,
        calculate_total: Option<bool>,
    ) -> Result<QueryChangesResponse, jmap_base_client::ClientError> {
        // Defence-in-depth: see task_list_changes.
        if since_query_state.as_ref().is_empty() {
            return Err(jmap_base_client::ClientError::InvalidArgument(
                "task_notification_query_changes: since_query_state may not be empty".into(),
            ));
        }
        let (api_url, account_id) = self.session_parts()?;
        let mut args = serde_json::json!({
            "accountId": account_id,
            "sinceQueryState": since_query_state,
        });
        if let Some(f) = filter {
            args["filter"] = f;
        }
        if let Some(s) = sort {
            args["sort"] = s;
        }
        if let Some(mc) = max_changes {
            args["maxChanges"] = mc.into();
        }
        if let Some(uti) = up_to_id {
            args["upToId"] = serde_json::to_value(uti).expect("Id Serialize is infallible");
        }
        if let Some(ct) = calculate_total {
            args["calculateTotal"] = ct.into();
        }
        let req = super::build_request("TaskNotification/queryChanges", args, super::USING_TASKS);
        let resp = self.call_internal(api_url, &req).await?;
        jmap_base_client::extract_response(&resp, super::CALL_ID)
    }
}

// ---------------------------------------------------------------------------
// Tests — see tests/task_notification_tests.rs (wiremock-backed end-to-end)
// ---------------------------------------------------------------------------
//
// `task_notification_set_destroy_only_serialization` and
// `task_notification_set_uses_tasks_capability` were vacuous: they
// hand-built `args` Values and fed them to `build_request`, never
// exercising the production `task_notification_set` builder. Deleted in
// JMAP-tco1.20.
//
// Real production-path coverage:
//   - task_notification_get_round_trip
//   - task_notification_changes_round_trip
//   - task_notification_set_destroy_only_wire_format
//   - task_notification_set_empty_destroy_succeeds
//   - task_notification_query_with_filter
//   - task_notification_query_changes_round_trip
// in tests/task_notification_tests.rs.
//
// Specific-flag passthrough coverage that may be lost is tracked
// under JMAP-uuoi for follow-up wiremock smoke tests.
//
// `build_request`, `CALL_ID`, and `USING_TASKS` themselves have their
// own focused tests in `methods/mod.rs`.
//
// The InvalidArgument guard for empty since_state lives in
// task_notification_changes production code; testing it requires a
// wiremock-backed async harness. See JMAP-sc1b.64.