concord 2.5.0

A terminal user interface client for Discord
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use crate::DiscordClient;
use crate::discord::ids::{
    Id,
    marker::{ChannelMarker, MessageMarker},
};

use super::command_loop::log_app_error;

pub(super) async fn ack_channel(
    client: DiscordClient,
    channel_id: Id<ChannelMarker>,
    message_id: Id<MessageMarker>,
) {
    client.clear_read_ack(channel_id);
    client
        .publish_optimistic_read_ack(channel_id, message_id)
        .await;
    // A failure here only loses cross-client sync because the backend
    // has already published the local read state update.
    if let Err(error) = client.ack_channel(channel_id, message_id).await {
        log_app_error("ack channel failed", &error);
    }
}

pub(super) async fn schedule_ack_channel(
    client: DiscordClient,
    channel_id: Id<ChannelMarker>,
    message_id: Id<MessageMarker>,
) {
    client
        .publish_optimistic_read_ack(channel_id, message_id)
        .await;
    client.schedule_read_ack(channel_id, message_id, std::time::Instant::now());
}

pub(super) async fn ack_channels(
    client: DiscordClient,
    targets: Vec<(Id<ChannelMarker>, Id<MessageMarker>)>,
) {
    client.clear_read_acks(targets.iter().map(|(channel_id, _)| *channel_id));
    client.publish_optimistic_read_acks(&targets).await;
    // A failure here only loses cross-client sync because the backend
    // has already published the local read state updates.
    if let Err(error) = client.ack_channels(&targets).await {
        log_app_error("ack channels failed", &error);
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[tokio::test]
    async fn scheduling_an_ack_marks_the_channel_read_without_waiting_for_the_server() {
        let _ = rustls::crypto::ring::default_provider().install_default();
        let client = DiscordClient::new("test-token".to_owned()).expect("token is valid header");
        let channel_id = Id::new(1);
        let message_id = Id::new(2);
        let before = client.current_discord_snapshot().revision;

        schedule_ack_channel(client.clone(), channel_id, message_id).await;

        let after = client.current_discord_snapshot().revision;
        assert!(
            after.detail > before.detail,
            "the local read state must move before the request is sent"
        );
    }
}