48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
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package storage
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import (
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"errors"
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"strings"
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"github.com/redis/go-redis/v9"
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)
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const (
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cacheUserHandleToIdPrefix = "acc-name-to-id:"
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cacheUserIdToAccPrefix = "acc-id-to-data:"
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)
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var errCacheNotFound = errors.New("not found in cache")
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// Find an account id in cache using a given user handle
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func (s *Storage) cacheHandleToAccUid(handle string) (*string, error) {
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// Where to put the data (in case it's found)
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var target string
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found, err := s.cache.Get(cacheUserHandleToIdPrefix+strings.TrimLeft(handle, "@"), &target)
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// If nothing was found, check error
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if !found {
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// Case error is set and NOT redis' error for nothing found: Return that error
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if err != nil && !errors.Is(err, redis.Nil) {
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return nil, err
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} else {
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// Else return errCacheNotFound
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return nil, errCacheNotFound
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}
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}
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return &target, nil
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}
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// Find an account's data in cache using a given account id
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func (s *Storage) cacheAccIdToData(id string) (*Account, error) {
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var target Account
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found, err := s.cache.Get(cacheUserIdToAccPrefix+id, &target)
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if !found {
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if err != nil && !errors.Is(err, redis.Nil) {
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return nil, err
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} else {
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return nil, errCacheNotFound
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}
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}
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return &target, nil
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}
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