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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package postgres | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/lib/pq" | ||
| "github.com/mgjules/deckr/deck" | ||
| "gorm.io/gorm" | ||
| ) | ||
|
|
||
| // Deck represents a deck of cards. | ||
| type Deck struct { | ||
| gorm.Model | ||
| ID string `gorm:"primaryKey"` | ||
| Shuffled bool | ||
| Composition string `gorm:"type:varchar(64)"` | ||
| Codes pq.StringArray `gorm:"type:varchar(3)[]"` | ||
| } | ||
|
|
||
| // DomainDeckToDeck transforms a domain deck to a repo deck. | ||
| func DomainDeckToDeck(d *deck.Deck) *Deck { | ||
| var rd Deck | ||
| rd.ID = d.ID() | ||
| rd.Shuffled = d.IsShuffled() | ||
| rd.Composition = d.Composition() | ||
| for _, card := range d.Cards() { | ||
| rd.Codes = append(rd.Codes, card.Code().String()) | ||
| } | ||
|
|
||
| return &rd | ||
| } | ||
|
|
||
| // DeckToDomainDeck transforms a repo deck to a domain deck. | ||
| func DeckToDomainDeck(rd *Deck) (*deck.Deck, error) { | ||
| d, err := deck.New( | ||
| deck.WithID(rd.ID), | ||
| deck.WithShuffled(rd.Shuffled), | ||
| deck.WithComposition(rd.Composition), | ||
| deck.WithCodes(rd.Codes...), | ||
| ) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("new deck: %w", err) | ||
| } | ||
|
|
||
| return d, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| package postgres | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
|
|
||
| "github.com/mgjules/deckr/deck" | ||
| "github.com/mgjules/deckr/logger" | ||
| "gorm.io/driver/postgres" | ||
| "gorm.io/gorm" | ||
| ) | ||
|
|
||
| // ErrDeckNotFound is the error returned when a deck is not found. | ||
| var ErrDeckNotFound = errors.New("deck not found") | ||
|
|
||
| // Repository is a PostgreSQL implementation of the deckr.Repository interface. | ||
| type Repository struct { | ||
| log *logger.Logger | ||
| db *gorm.DB | ||
| } | ||
|
|
||
| // NewRepository creates a new PostgreSQL repository. | ||
| func NewRepository(uri string, log *logger.Logger) (*Repository, error) { | ||
| db, err := gorm.Open(postgres.New(postgres.Config{ | ||
| DSN: uri, | ||
| })) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("open postgres connection: %w", err) | ||
| } | ||
|
|
||
| return &Repository{ | ||
| log: log, | ||
| db: db, | ||
| }, nil | ||
| } | ||
|
|
||
| // Get returns the deck with the given id. | ||
| func (r *Repository) Get(_ context.Context, id string) (*deck.Deck, error) { | ||
| var saved Deck | ||
|
|
||
| if err := r.db.First(&saved, id); err != nil { | ||
| return nil, fmt.Errorf("deck '%s': %w", id, ErrDeckNotFound) | ||
| } | ||
|
|
||
| d, err := DeckToDomainDeck(&saved) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("deck '%s': %w", id, err) | ||
| } | ||
|
|
||
| r.log.Debugf("get deck '%s'", d.ID) | ||
|
|
||
| return d, nil | ||
| } | ||
|
|
||
| // Save saves the given deck. | ||
| func (r *Repository) Save(_ context.Context, d *deck.Deck) error { | ||
| save := DomainDeckToDeck(d) | ||
|
|
||
| r.db.Save(save) | ||
|
|
||
| r.log.Debugf("saved deck '%s'", save.ID) | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // Migrate migratess the deck model. | ||
| func (r *Repository) Migrate(_ context.Context) error { | ||
| if err := r.db.AutoMigrate(&Deck{}); err != nil { | ||
| return fmt.Errorf("migrate deck model: %w", err) | ||
| } | ||
|
|
||
| r.log.Debug("migrated deck model") | ||
|
|
||
| return nil | ||
| } |
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