Struct VideoCache 

pub struct VideoCache { /* private fields */ }

Video cache manager with tiered L1 (Moka) + L2 (persistent) lookup.

On get: L1 → miss → L2 → backfill L1. On put: write to both layers.

Implementations

impl VideoCache

pub async fn new(config: &CacheConfig, ttl: Option<u64>) -> Result<Self>

Creates a new video cache with the configured layers.

Arguments

• config - The cache configuration specifying directories, TTLs, and backend settings.
• ttl - Time-to-live for cache entries in seconds (optional).

Returns

A new VideoCache instance.

Errors

Returns an error if backend initialization fails or the backend is ambiguous.

pub async fn get(&self, url: &str) -> Result<Option<Video>>

Retrieves a video from the cache by its URL.

Arguments

• url - The URL of the video to retrieve.

Returns

Some(Video) if found and not expired, None otherwise.

Errors

Returns an error if the backend query fails.

pub async fn put(&self, url: String, video: Video) -> Result<()>

Puts a video in the cache (both layers).

Arguments

• url - The URL of the video.
• video - The video metadata to cache.

Errors

Returns an error if the backend put operation fails.

pub async fn remove(&self, url: &str) -> Result<()>

Removes a video from the cache (both layers).

Arguments

• url - The URL of the video to remove.

Errors

Returns an error if the backend remove operation fails.

pub async fn clean(&self) -> Result<()>

Cleans the cache by removing expired entries.

Errors

Returns an error if the backend clean operation fails.

pub async fn get_by_id(&self, id: &str) -> Result<CachedVideo>

Retrieves a video from the cache by its ID.

Arguments

• id - The video ID to search for.

Returns

The cached video metadata.

Errors

Returns an error if the video is not found or the backend query fails.

Trait Implementations

impl Debug for VideoCache

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.