94 lines
2.6 KiB
Rust
94 lines
2.6 KiB
Rust
use chrono::{DateTime, Utc};
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use uuid::Uuid;
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use crate::database::{DatabaseClient, DatabaseError};
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use crate::models::cleanup::{
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find_orphaned_files,
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find_orphaned_ipfs_objects,
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DeletionQueue,
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};
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use crate::utils::id::new_uuid;
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use super::types::DbMediaAttachment;
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pub async fn create_attachment(
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db_client: &impl DatabaseClient,
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owner_id: &Uuid,
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file_name: String,
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file_size: usize,
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media_type: Option<String>,
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) -> Result<DbMediaAttachment, DatabaseError> {
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let attachment_id = new_uuid();
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let file_size: i32 = file_size.try_into()
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.expect("value should be within bounds");
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let inserted_row = db_client.query_one(
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"
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INSERT INTO media_attachment (
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id,
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owner_id,
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file_name,
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file_size,
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media_type
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)
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VALUES ($1, $2, $3, $4, $5)
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RETURNING media_attachment
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",
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&[
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&attachment_id,
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&owner_id,
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&file_name,
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&file_size,
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&media_type,
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],
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).await?;
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let db_attachment: DbMediaAttachment = inserted_row.try_get("media_attachment")?;
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Ok(db_attachment)
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}
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pub async fn set_attachment_ipfs_cid(
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db_client: &impl DatabaseClient,
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attachment_id: &Uuid,
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ipfs_cid: &str,
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) -> Result<DbMediaAttachment, DatabaseError> {
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let maybe_row = db_client.query_opt(
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"
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UPDATE media_attachment
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SET ipfs_cid = $1
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WHERE id = $2 AND ipfs_cid IS NULL
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RETURNING media_attachment
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",
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&[&ipfs_cid, &attachment_id],
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).await?;
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let row = maybe_row.ok_or(DatabaseError::NotFound("attachment"))?;
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let db_attachment = row.try_get("media_attachment")?;
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Ok(db_attachment)
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}
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pub async fn delete_unused_attachments(
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db_client: &impl DatabaseClient,
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created_before: &DateTime<Utc>,
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) -> Result<DeletionQueue, DatabaseError> {
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let rows = db_client.query(
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"
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DELETE FROM media_attachment
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WHERE post_id IS NULL AND created_at < $1
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RETURNING file_name, ipfs_cid
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",
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&[&created_before],
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).await?;
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let mut files = vec![];
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let mut ipfs_objects = vec![];
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for row in rows {
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let file_name = row.try_get("file_name")?;
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files.push(file_name);
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if let Some(ipfs_cid) = row.try_get("ipfs_cid")? {
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ipfs_objects.push(ipfs_cid);
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};
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};
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let orphaned_files = find_orphaned_files(db_client, files).await?;
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let orphaned_ipfs_objects = find_orphaned_ipfs_objects(db_client, ipfs_objects).await?;
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Ok(DeletionQueue {
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files: orphaned_files,
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ipfs_objects: orphaned_ipfs_objects,
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})
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}
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