67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
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package joke
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"log"
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"sort"
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"time"
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"github.com/go-redis/redis/v8"
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"github.com/minio/minio-go/v7"
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)
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func ListJokesFromBucket(ctx context.Context, bucket *minio.Client, cache *redis.Client) ([]Joke, error) {
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cached, err := cache.Get(ctx, "jokes:list").Result()
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if err != nil && !errors.Is(err, redis.Nil) {
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return []Joke{}, fmt.Errorf("acquiring joke list from cache: %w", err)
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}
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if err == nil {
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var jokes []Joke
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err := json.Unmarshal([]byte(cached), &jokes)
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if err != nil {
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return []Joke{}, fmt.Errorf("unmarshalling json: %w", err)
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}
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return jokes, nil
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}
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objects := bucket.ListObjects(ctx, JokesBapak2Bucket, minio.ListObjectsOptions{Recursive: true})
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var jokes []Joke
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for object := range objects {
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if object.Err != nil {
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return []Joke{}, fmt.Errorf("enumerating objects: %w", object.Err)
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}
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if !object.IsDeleteMarker {
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jokes = append(jokes, Joke{ModifiedAt: object.Restore.ExpiryTime, FileName: object.Key, ContentType: object.ContentType})
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}
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}
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sort.SliceStable(jokes, func(i, j int) bool {
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return jokes[i].ModifiedAt.Before(jokes[i].ModifiedAt)
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})
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defer func(jokes []Joke) {
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ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
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defer cancel()
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marshalled, err := json.Marshal(jokes)
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if err != nil {
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log.Printf("marshalling json: %s", err.Error())
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return
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}
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err = cache.Set(ctx, "jokes:list", string(marshalled), time.Hour*6).Err()
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if err != nil {
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log.Printf("setting jokes:list cache: %s", err.Error())
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}
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}(jokes)
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return jokes, nil
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}
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