117 lines
4.1 KiB
Go
117 lines
4.1 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package cache
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import (
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"time"
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"codeberg.org/gruf/go-cache/v2"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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)
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// EmojiCache is a cache wrapper to provide ID and URI lookups for gtsmodel.Emoji
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type EmojiCache struct {
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cache cache.LookupCache[string, string, *gtsmodel.Emoji]
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}
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// NewEmojiCache returns a new instantiated EmojiCache object
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func NewEmojiCache() *EmojiCache {
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c := &EmojiCache{}
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c.cache = cache.NewLookup(cache.LookupCfg[string, string, *gtsmodel.Emoji]{
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RegisterLookups: func(lm *cache.LookupMap[string, string]) {
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lm.RegisterLookup("uri")
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lm.RegisterLookup("shortcodedomain")
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},
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AddLookups: func(lm *cache.LookupMap[string, string], emoji *gtsmodel.Emoji) {
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if uri := emoji.URI; uri != "" {
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lm.Set("uri", uri, emoji.URI)
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lm.Set("shortcodedomain", shortcodeDomainKey(emoji.Shortcode, emoji.Domain), emoji.ID)
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}
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},
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DeleteLookups: func(lm *cache.LookupMap[string, string], emoji *gtsmodel.Emoji) {
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if uri := emoji.URI; uri != "" {
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lm.Delete("uri", uri)
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lm.Delete("shortcodedomain", shortcodeDomainKey(emoji.Shortcode, emoji.Domain))
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}
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},
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})
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c.cache.SetTTL(time.Minute*5, false)
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c.cache.Start(time.Second * 10)
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return c
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}
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// GetByID attempts to fetch an emoji from the cache by its ID, you will receive a copy for thread-safety
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func (c *EmojiCache) GetByID(id string) (*gtsmodel.Emoji, bool) {
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return c.cache.Get(id)
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}
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// GetByURI attempts to fetch an emoji from the cache by its URI, you will receive a copy for thread-safety
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func (c *EmojiCache) GetByURI(uri string) (*gtsmodel.Emoji, bool) {
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return c.cache.GetBy("uri", uri)
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}
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func (c *EmojiCache) GetByShortcodeDomain(shortcode string, domain string) (*gtsmodel.Emoji, bool) {
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return c.cache.GetBy("shortcodedomain", shortcodeDomainKey(shortcode, domain))
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}
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// Put places an emoji in the cache, ensuring that the object place is a copy for thread-safety
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func (c *EmojiCache) Put(emoji *gtsmodel.Emoji) {
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if emoji == nil || emoji.ID == "" {
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panic("invalid emoji")
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}
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c.cache.Set(emoji.ID, copyEmoji(emoji))
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}
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// copyEmoji performs a surface-level copy of emoji, only keeping attached IDs intact, not the objects.
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// due to all the data being copied being 99% primitive types or strings (which are immutable and passed by ptr)
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// this should be a relatively cheap process
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func copyEmoji(emoji *gtsmodel.Emoji) *gtsmodel.Emoji {
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return >smodel.Emoji{
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ID: emoji.ID,
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CreatedAt: emoji.CreatedAt,
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UpdatedAt: emoji.UpdatedAt,
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Shortcode: emoji.Shortcode,
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Domain: emoji.Domain,
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ImageRemoteURL: emoji.ImageRemoteURL,
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ImageStaticRemoteURL: emoji.ImageStaticRemoteURL,
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ImageURL: emoji.ImageURL,
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ImageStaticURL: emoji.ImageStaticURL,
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ImagePath: emoji.ImagePath,
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ImageStaticPath: emoji.ImageStaticPath,
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ImageContentType: emoji.ImageContentType,
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ImageStaticContentType: emoji.ImageStaticContentType,
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ImageFileSize: emoji.ImageFileSize,
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ImageStaticFileSize: emoji.ImageStaticFileSize,
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ImageUpdatedAt: emoji.ImageUpdatedAt,
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Disabled: copyBoolPtr(emoji.Disabled),
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URI: emoji.URI,
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VisibleInPicker: copyBoolPtr(emoji.VisibleInPicker),
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CategoryID: emoji.CategoryID,
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}
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}
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func shortcodeDomainKey(shortcode string, domain string) string {
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if domain != "" {
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return shortcode + "@" + domain
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}
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return shortcode
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}
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