use crate::Perform;
use actix_web::web::Data;
use lemmy_api_common::{
  post::{PostReportResponse, ResolvePostReport},
  utils::{blocking, get_local_user_view_from_jwt, is_mod_or_admin},
};
use lemmy_db_schema::{source::post_report::PostReport, traits::Reportable};
use lemmy_db_views::structs::PostReportView;
use lemmy_utils::{ConnectionId, LemmyError};
use lemmy_websocket::{messages::SendModRoomMessage, LemmyContext, UserOperation};

/// Resolves or unresolves a post report and notifies the moderators of the community
#[async_trait::async_trait(?Send)]
impl Perform for ResolvePostReport {
  type Response = PostReportResponse;

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

    let report_id = data.report_id;
    let person_id = local_user_view.person.id;
    let report = blocking(context.pool(), move |conn| {
      PostReportView::read(conn, report_id, person_id)
    })
    .await??;

    let person_id = local_user_view.person.id;
    is_mod_or_admin(context.pool(), person_id, report.community.id).await?;

    let resolved = data.resolved;
    let resolve_fun = move |conn: &'_ _| {
      if resolved {
        PostReport::resolve(conn, report_id, person_id)
      } else {
        PostReport::unresolve(conn, report_id, person_id)
      }
    };

    blocking(context.pool(), resolve_fun)
      .await?
      .map_err(|e| LemmyError::from_error_message(e, "couldnt_resolve_report"))?;

    let post_report_view = blocking(context.pool(), move |conn| {
      PostReportView::read(conn, report_id, person_id)
    })
    .await??;

    let res = PostReportResponse { post_report_view };

    context.chat_server().do_send(SendModRoomMessage {
      op: UserOperation::ResolvePostReport,
      response: res.clone(),
      community_id: report.community.id,
      websocket_id,
    });

    Ok(res)
  }
}