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package fetchers
import (
"llostre/backend/notes"
"sync"
"time"
)
type CacheEntry struct {
Note *notes.Note
ExpiresAt time.Time
}
type Cache struct {
posts map[string]*CacheEntry
profiles map[string]*AuthorCacheEntry
mu sync.RWMutex
}
func NewCache() *Cache {
return &Cache{
posts: make(map[string]*CacheEntry),
profiles: make(map[string]*AuthorCacheEntry),
}
}
func (c *Cache) Get(uri string) (*notes.Note, bool) {
c.mu.Lock()
defer c.mu.Unlock()
entry, exists := c.posts[uri]
if !exists {
return nil, false
}
if time.Now().After(entry.ExpiresAt) {
delete(c.posts, uri)
return nil, false
}
return entry.Note, true
}
func (c *Cache) Set(uri string, note *notes.Note) {
c.mu.Lock()
defer c.mu.Unlock()
c.posts[uri] = &CacheEntry{
Note: note,
ExpiresAt: time.Now().Add(15 * time.Minute),
}
}
func (c *Cache) GetMany(uris []string) map[string]*notes.Note {
c.mu.Lock()
defer c.mu.Unlock()
result := make(map[string]*notes.Note)
now := time.Now()
for _, uri := range uris {
entry, exists := c.posts[uri]
if !exists {
continue
}
if now.After(entry.ExpiresAt) {
delete(c.posts, uri)
continue
}
result[uri] = entry.Note
}
return result
}
type AuthorCacheEntry struct {
Author *notes.Author
ExpiresAt time.Time
}
func (c *Cache) GetProfile(did string) (*notes.Author, bool) {
c.mu.Lock()
defer c.mu.Unlock()
entry, exists := c.profiles[did]
if !exists {
return nil, false
}
if time.Now().After(entry.ExpiresAt) {
delete(c.profiles, did)
return nil, false
}
return entry.Author, true
}
func (c *Cache) SetAuthor(did string, author *notes.Author) {
c.mu.Lock()
defer c.mu.Unlock()
c.profiles[did] = &AuthorCacheEntry{
Author: author,
ExpiresAt: time.Now().Add(15 * time.Minute),
}
}
|
