大海
58 lines
2.1 KiB
TypeScript
58 lines
2.1 KiB
TypeScript
// Auto-generated Product service
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import { queryAll, queryOne, execute } from "../db/client.js";
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import type { Product, CreateProductInput, UpdateProductInput } from "../types/index.js";
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export class ProductService {
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/** List all products */
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list(): Product[] {
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return queryAll<Product>("SELECT * FROM products ORDER BY created_at DESC");
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}
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/** Get by ID */
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getById(id: string): Product | undefined {
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return queryOne<Product>("SELECT * FROM products WHERE id = ?", [id]);
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}
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/** Create */
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create(input: CreateProductInput): Product {
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const id = crypto.randomUUID();
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const now = new Date().toISOString();
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const hasCreatedAt = true;
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const hasUpdatedAt = false;
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const cols = ["id", "title", "price", "stock", "images", "category_id", "created_at"];
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const placeholders = cols.map(() => "?").join(", ");
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const values = [id, input.title ?? null, input.price ?? null, input.stock ?? null, input.images ?? null, input.categoryId ?? null, now];
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execute(`INSERT INTO products (${cols.join(", ")}) VALUES (${placeholders})`, values);
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return this.getById(id)!;
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}
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/** Update */
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update(id: string, input: UpdateProductInput): Product | undefined {
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const existing = this.getById(id);
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if (!existing) return undefined;
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const sets: string[] = [];
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const values: unknown[] = [];
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if (input.title !== undefined) { sets.push("title = ?"); values.push(input.title); }
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if (input.price !== undefined) { sets.push("price = ?"); values.push(input.price); }
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if (input.stock !== undefined) { sets.push("stock = ?"); values.push(input.stock); }
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if (input.images !== undefined) { sets.push("images = ?"); values.push(input.images); }
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if (input.categoryId !== undefined) { sets.push("category_id = ?"); values.push(input.categoryId); }
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if (sets.length === 0) return existing;
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values.push(id);
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execute(`UPDATE products SET ${sets.join(", ")} WHERE id = ?`, values);
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return this.getById(id)!;
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}
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/** Delete */
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delete(id: string): boolean {
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const result = execute("DELETE FROM products WHERE id = ?", [id]);
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return result.changes > 0;
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}
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}
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