2e10822e5a
Introduces a StorageBackend interface with local filesystem and S3 implementations. The StorageService delegates raw I/O to the backend while keeping validation, encryption, and URL generation unchanged. Backend selection is config-driven: set B2_ENDPOINT + B2_KEY_ID + B2_APP_KEY + B2_BUCKET_NAME for S3 mode, or STORAGE_UPLOAD_DIR for local mode. STORAGE_USE_SSL=false for in-cluster MinIO (HTTP). All existing tests pass unchanged — the local backend preserves identical behavior to the previous direct-filesystem implementation. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
22 lines
716 B
Go
22 lines
716 B
Go
package services
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import "io"
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// StorageBackend abstracts where files are physically stored.
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// The StorageService handles validation, encryption, and URL generation,
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// then delegates raw I/O to the backend.
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type StorageBackend interface {
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// Write stores data at the given key (e.g., "images/20240101_uuid.jpg").
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Write(key string, data []byte) error
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// Read returns the raw bytes stored at the given key.
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Read(key string) ([]byte, error)
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// Delete removes the object at the given key. Returns nil if not found.
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Delete(key string) error
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// ReadStream returns a reader for the object (used for large files).
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// Callers must close the returned ReadCloser.
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ReadStream(key string) (io.ReadCloser, error)
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}
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