104 lines
2.0 KiB
Go
104 lines
2.0 KiB
Go
package pipeline
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import (
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"encoding/json"
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"fmt"
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"github.com/google/uuid"
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bolt "go.etcd.io/bbolt"
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)
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var bucket = []byte("pipelines")
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type Step struct {
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Type string `json:"type"` // es. "transcoder", "filewriter"
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FFmpegArgs []string `json:"ffmpeg_args,omitempty"` // args da passare a ffmpeg
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Path string `json:"path,omitempty"` // solo per filewriter
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Extension string `json:"extension,omitempty"` // solo per filewriter
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}
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type Pipeline struct {
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ID string `json:"id"`
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Name string `json:"name"`
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Steps []Step `json:"steps"`
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}
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type Store struct {
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db *bolt.DB
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}
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func NewStore(db *bolt.DB) (*Store, error) {
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// init bucket
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err := db.Update(func(tx *bolt.Tx) error {
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_, err := tx.CreateBucketIfNotExists(bucket)
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return err
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})
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if err != nil {
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return nil, err
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}
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return &Store{db: db}, nil
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}
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func (s *Store) Save(p Pipeline) (string, error) {
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if p.ID == "" {
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p.ID = uuid.NewString()
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}
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data, err := json.Marshal(p)
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if err != nil {
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return "", err
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}
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return p.ID, s.db.Update(func(tx *bolt.Tx) error {
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b := tx.Bucket(bucket)
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return b.Put([]byte(p.ID), data)
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})
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}
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func (s *Store) Get(id string) (*Pipeline, error) {
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var p Pipeline
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err := s.db.View(func(tx *bolt.Tx) error {
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b := tx.Bucket(bucket)
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v := b.Get([]byte(id))
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if v == nil {
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return fmt.Errorf("pipeline %s not found", id)
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}
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return json.Unmarshal(v, &p)
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})
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if err != nil {
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return nil, err
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}
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return &p, nil
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}
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func (s *Store) List() ([]Pipeline, error) {
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var result []Pipeline
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err := s.db.View(func(tx *bolt.Tx) error {
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b := tx.Bucket(bucket)
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return b.ForEach(func(k, v []byte) error {
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var p Pipeline
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if err := json.Unmarshal(v, &p); err != nil {
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return err
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}
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result = append(result, p)
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return nil
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})
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})
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if err != nil {
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return nil, err
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}
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return result, nil
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}
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func (s *Store) Delete(id string) error {
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return s.db.Update(func(tx *bolt.Tx) error {
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b := tx.Bucket(bucket)
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return b.Delete([]byte(id))
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})
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}
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