use crate::Perform;
use actix_web::web::Data;
use lemmy_api_common::{
  person::{MarkPersonMentionAsRead, PersonMentionResponse},
  utils::{blocking, get_local_user_view_from_jwt},
};
use lemmy_db_schema::{source::person_mention::PersonMention, traits::Crud};
use lemmy_db_views_actor::structs::PersonMentionView;
use lemmy_utils::{error::LemmyError, ConnectionId};
use lemmy_websocket::LemmyContext;

#[async_trait::async_trait(?Send)]
impl Perform for MarkPersonMentionAsRead {
  type Response = PersonMentionResponse;

  #[tracing::instrument(skip(context, _websocket_id))]
  async fn perform(
    &self,
    context: &Data<LemmyContext>,
    _websocket_id: Option<ConnectionId>,
  ) -> Result<PersonMentionResponse, LemmyError> {
    let data: &MarkPersonMentionAsRead = self;
    let local_user_view =
      get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;

    let person_mention_id = data.person_mention_id;
    let read_person_mention = blocking(context.pool(), move |conn| {
      PersonMention::read(conn, person_mention_id)
    })
    .await??;

    if local_user_view.person.id != read_person_mention.recipient_id {
      return Err(LemmyError::from_message("couldnt_update_comment"));
    }

    let person_mention_id = read_person_mention.id;
    let read = data.read;
    let update_mention =
      move |conn: &'_ _| PersonMention::update_read(conn, person_mention_id, read);
    blocking(context.pool(), update_mention)
      .await?
      .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_comment"))?;

    let person_mention_id = read_person_mention.id;
    let person_id = local_user_view.person.id;
    let person_mention_view = blocking(context.pool(), move |conn| {
      PersonMentionView::read(conn, person_mention_id, Some(person_id))
    })
    .await??;

    Ok(PersonMentionResponse {
      person_mention_view,
    })
  }
}