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use futures::StreamExt;
use revolt_result::Result;

use crate::Invite;
use crate::MongoDb;

use super::AbstractChannelInvites;

static COL: &str = "channel_invites";

#[async_trait]
impl AbstractChannelInvites for MongoDb {
    /// Insert a new invite into the database
    async fn insert_invite(&self, invite: &Invite) -> Result<()> {
        query!(self, insert_one, COL, &invite).map(|_| ())
    }

    /// Fetch an invite by the code
    async fn fetch_invite(&self, code: &str) -> Result<Invite> {
        query!(self, find_one_by_id, COL, code)?.ok_or_else(|| create_error!(NotFound))
    }

    /// Fetch all invites for a server
    async fn fetch_invites_for_server(&self, server_id: &str) -> Result<Vec<Invite>> {
        Ok(self
            .col::<Invite>(COL)
            .find(
                doc! {
                    "server": server_id,
                },
                None,
            )
            .await
            .map_err(|_| create_database_error!("find", COL))?
            .filter_map(|s| async {
                if cfg!(debug_assertions) {
                    Some(s.unwrap())
                } else {
                    s.ok()
                }
            })
            .collect()
            .await)
    }

    /// Delete an invite by its code
    async fn delete_invite(&self, code: &str) -> Result<()> {
        query!(self, delete_one_by_id, COL, code).map(|_| ())
    }
}