80 lines
1.9 KiB
Rust
80 lines
1.9 KiB
Rust
use crate::{
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db::{Db, MediaMeta},
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error::MyError,
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};
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use activitystreams::url::Url;
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use actix_web::web::Bytes;
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use std::time::{Duration, SystemTime};
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use uuid::Uuid;
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static MEDIA_DURATION: Duration = Duration::from_secs(60 * 60 * 24 * 2);
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#[derive(Clone)]
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pub struct MediaCache {
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db: Db,
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}
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impl MediaCache {
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pub fn new(db: Db) -> Self {
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MediaCache { db }
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}
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pub async fn get_uuid(&self, url: Url) -> Result<Option<Uuid>, MyError> {
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self.db.media_id(url).await
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}
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pub async fn get_url(&self, uuid: Uuid) -> Result<Option<Url>, MyError> {
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self.db.media_url(uuid).await
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}
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pub async fn is_outdated(&self, uuid: Uuid) -> Result<bool, MyError> {
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if let Some(meta) = self.db.media_meta(uuid).await? {
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if meta.saved_at + MEDIA_DURATION > SystemTime::now() {
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return Ok(false);
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}
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}
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Ok(true)
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}
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pub async fn get_bytes(&self, uuid: Uuid) -> Result<Option<(String, Bytes)>, MyError> {
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if let Some(meta) = self.db.media_meta(uuid).await? {
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if meta.saved_at + MEDIA_DURATION > SystemTime::now() {
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return self
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.db
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.media_bytes(uuid)
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.await
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.map(|opt| opt.map(|bytes| (meta.media_type, bytes)));
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}
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}
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Ok(None)
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}
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pub async fn store_url(&self, url: Url) -> Result<Uuid, MyError> {
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let uuid = Uuid::new_v4();
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self.db.save_url(url, uuid).await?;
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Ok(uuid)
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}
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pub async fn store_bytes(
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&self,
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uuid: Uuid,
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media_type: String,
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bytes: Bytes,
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) -> Result<(), MyError> {
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self.db
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.save_bytes(
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uuid,
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MediaMeta {
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media_type,
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saved_at: SystemTime::now(),
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},
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bytes,
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)
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.await
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}
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}
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