//! Types for the [`m.ignored_user_list`] event.
//!
//! [`m.ignored_user_list`]: https://spec.matrix.org/v1.2/client-server-api/#mignored_user_list

use ruma_macros::EventContent;
use serde::{Deserialize, Serialize};

use crate::OwnedUserId;

/// The content of an `m.ignored_user_list` event.
///
/// A list of users to ignore.
#[derive(Clone, Debug, Default, Deserialize, Serialize, EventContent)]
#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
#[ruma_event(type = "m.ignored_user_list", kind = GlobalAccountData)]
pub struct IgnoredUserListEventContent {
    /// A list of users to ignore.
    #[serde(with = "crate::serde::vec_as_map_of_empty")]
    pub ignored_users: Vec<OwnedUserId>,
}

impl IgnoredUserListEventContent {
    /// Creates a new `IgnoredUserListEventContent` from the given user IDs.
    pub fn new(ignored_users: Vec<OwnedUserId>) -> Self {
        Self { ignored_users }
    }
}

#[cfg(test)]
mod tests {
    use assert_matches::assert_matches;
    use serde_json::{from_value as from_json_value, json, to_value as to_json_value};

    use super::IgnoredUserListEventContent;
    use crate::{
        events::{AnyGlobalAccountDataEvent, GlobalAccountDataEvent},
        user_id,
    };

    #[test]
    fn serialization() {
        let ignored_user_list_event = GlobalAccountDataEvent {
            content: IgnoredUserListEventContent {
                ignored_users: vec![user_id!("@carl:example.com").to_owned()],
            },
        };

        let json = json!({
            "content": {
                "ignored_users": {
                    "@carl:example.com": {}
                }
            },
            "type": "m.ignored_user_list"
        });

        assert_eq!(to_json_value(ignored_user_list_event).unwrap(), json);
    }

    #[test]
    fn deserialization() {
        let json = json!({
            "content": {
                "ignored_users": {
                    "@carl:example.com": {}
                }
            },
            "type": "m.ignored_user_list"
        });

        let ev = assert_matches!(
            from_json_value::<AnyGlobalAccountDataEvent>(json),
            Ok(AnyGlobalAccountDataEvent::IgnoredUserList(ev)) => ev
        );
        assert_eq!(ev.content.ignored_users, vec![user_id!("@carl:example.com")]);
    }
}