tetratto/crates/core/src/database/uploads.rs

use std::fs::{exists, remove_file};
use super::*;
use crate::cache::Cache;
use crate::model::{Error, Result, uploads::MediaUpload};
use crate::{auto_method, execute, get, query_row, query_rows, params};

use pathbufd::PathBufD;
#[cfg(feature = "sqlite")]
use rusqlite::Row;

#[cfg(feature = "postgres")]
use tokio_postgres::Row;

impl DataManager {
    /// Get a [`MediaUpload`] from an SQL row.
    pub(crate) fn get_upload_from_row(
        #[cfg(feature = "sqlite")] x: &Row<'_>,
        #[cfg(feature = "postgres")] x: &Row,
    ) -> MediaUpload {
        MediaUpload {
            id: get!(x->0(i64)) as usize,
            created: get!(x->1(i64)) as usize,
            owner: get!(x->2(i64)) as usize,
            what: serde_json::from_str(&get!(x->3(String))).unwrap(),
        }
    }

    auto_method!(get_upload_by_id(usize as i64)@get_upload_from_row -> "SELECT * FROM uploads WHERE id = $1" --name="upload" --returns=MediaUpload --cache-key-tmpl="atto.uploads:{}");

    /// Get all uploads (paginated).
    ///
    /// # Arguments
    /// * `batch` - the limit of items in each page
    /// * `page` - the page number
    pub async fn get_uploads(&self, batch: usize, page: usize) -> Result<Vec<MediaUpload>> {
        let conn = match self.connect().await {
            Ok(c) => c,
            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
        };

        let res = query_rows!(
            &conn,
            "SELECT * FROM uploads ORDER BY created DESC LIMIT $1 OFFSET $2",
            &[&(batch as i64), &((page * batch) as i64)],
            |x| { Self::get_upload_from_row(x) }
        );

        if res.is_err() {
            return Err(Error::GeneralNotFound("upload".to_string()));
        }

        Ok(res.unwrap())
    }

    /// Create a new upload in the database.
    ///
    /// # Arguments
    /// * `data` - a mock [`MediaUpload`] object to insert
    pub async fn create_upload(&self, data: MediaUpload) -> Result<()> {
        let conn = match self.connect().await {
            Ok(c) => c,
            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
        };

        let res = execute!(
            &conn,
            "INSERT INTO uploads VALUES ($1, $2, $3, $4)",
            params![
                &(data.id as i64),
                &(data.created as i64),
                &(data.owner as i64),
                &serde_json::to_string(&data.what).unwrap().as_str(),
            ]
        );

        if let Err(e) = res {
            return Err(Error::DatabaseError(e.to_string()));
        }

        // return
        Ok(())
    }

    pub async fn delete_upload(&self, id: usize) -> Result<()> {
        // if !user.permissions.check(FinePermission::MANAGE_UPLOADS) {
        //     return Err(Error::NotAllowed);
        // }

        // delete file
        // it's most important that the file gets off the file system first, even
        // if there's an issue in the database
        //
        // the actual file takes up much more space than the database entry.
        let path = PathBufD::current().extend(&[self.0.dirs.media.as_str(), "uploads"]);
        if let Ok(exists) = exists(&path) {
            if exists {
                if let Err(e) = remove_file(&path) {
                    return Err(Error::MiscError(e.to_string()));
                }
            }
        } else {
            return Err(Error::GeneralNotFound("file".to_string()));
        }

        // delete from database
        let conn = match self.connect().await {
            Ok(c) => c,
            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
        };

        let res = execute!(&conn, "DELETE FROM uploads WHERE id = $1", &[&(id as i64)]);

        if let Err(e) = res {
            return Err(Error::DatabaseError(e.to_string()));
        }

        self.2.remove(format!("atto.upload:{}", id)).await;

        // return
        Ok(())
    }
}