From 7872296b838f4d1b26c6a0a01d79d27fe5ab44cc Mon Sep 17 00:00:00 2001
From: Brian Picciano <mediocregopher@gmail.com>
Date: Sat, 15 Apr 2023 21:07:16 +0200
Subject: Move asset store into its own package

---
 src/post/asset.go | 114 ------------------------------------------------------
 1 file changed, 114 deletions(-)
 delete mode 100644 src/post/asset.go

(limited to 'src/post/asset.go')

diff --git a/src/post/asset.go b/src/post/asset.go
deleted file mode 100644
index a7b605b..0000000
--- a/src/post/asset.go
+++ /dev/null
@@ -1,114 +0,0 @@
-package post
-
-import (
-	"bytes"
-	"database/sql"
-	"errors"
-	"fmt"
-	"io"
-)
-
-var (
-	// ErrAssetNotFound is used to indicate an Asset could not be found in the
-	// AssetStore.
-	ErrAssetNotFound = errors.New("asset not found")
-)
-
-// AssetStore implements the storage and retrieval of binary assets, which are
-// intended to be used by posts (e.g. images).
-type AssetStore interface {
-
-	// Set sets the id to the contents of the given io.Reader.
-	Set(id string, from io.Reader) error
-
-	// Get writes the id's body to the given io.Writer, or returns
-	// ErrAssetNotFound.
-	Get(id string, into io.Writer) error
-
-	// Delete's the body stored for the id, if any.
-	Delete(id string) error
-
-	// List returns all ids which are currently stored.
-	List() ([]string, error)
-}
-
-type assetStore struct {
-	db *sql.DB
-}
-
-// NewAssetStore initializes a new AssetStore using an existing SQLDB.
-func NewAssetStore(db *SQLDB) AssetStore {
-	return &assetStore{
-		db: db.db,
-	}
-}
-
-func (s *assetStore) Set(id string, from io.Reader) error {
-
-	body, err := io.ReadAll(from)
-	if err != nil {
-		return fmt.Errorf("reading body fully into memory: %w", err)
-	}
-
-	_, err = s.db.Exec(
-		`INSERT INTO assets (id, body)
-		VALUES (?, ?)
-		ON CONFLICT (id) DO UPDATE SET body=excluded.body`,
-		id, body,
-	)
-
-	if err != nil {
-		return fmt.Errorf("inserting into assets: %w", err)
-	}
-
-	return nil
-}
-
-func (s *assetStore) Get(id string, into io.Writer) error {
-
-	var body []byte
-
-	err := s.db.QueryRow(`SELECT body FROM assets WHERE id = ?`, id).Scan(&body)
-
-	if errors.Is(err, sql.ErrNoRows) {
-		return ErrAssetNotFound
-	} else if err != nil {
-		return fmt.Errorf("selecting from assets: %w", err)
-	}
-
-	if _, err := io.Copy(into, bytes.NewReader(body)); err != nil {
-		return fmt.Errorf("writing body to io.Writer: %w", err)
-	}
-
-	return nil
-}
-
-func (s *assetStore) Delete(id string) error {
-	_, err := s.db.Exec(`DELETE FROM assets WHERE id = ?`, id)
-	return err
-}
-
-func (s *assetStore) List() ([]string, error) {
-
-	rows, err := s.db.Query(`SELECT id FROM assets ORDER BY id ASC`)
-
-	if err != nil {
-		return nil, fmt.Errorf("querying: %w", err)
-	}
-
-	defer rows.Close()
-
-	var ids []string
-
-	for rows.Next() {
-
-		var id string
-		if err := rows.Scan(&id); err != nil {
-			return nil, fmt.Errorf("scanning row: %w", err)
-		}
-
-		ids = append(ids, id)
-	}
-
-	return ids, nil
-}
-- 
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