105 lines
4.0 KiB
TypeScript
105 lines
4.0 KiB
TypeScript
import type { ImageTemplate } from "@/lib/types";
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type ImageTemplateBody = {
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name?: unknown;
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description?: unknown;
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prompt?: unknown;
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previewImageUrl?: unknown;
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settings?: unknown;
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sortOrder?: unknown;
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};
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type ImageTemplatePatch = Partial<Omit<ImageTemplate, "id" | "ownerId" | "createdAt" | "updatedAt">>;
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export function normalizeImageTemplateCreate(body: ImageTemplateBody): Omit<ImageTemplate, "id" | "ownerId" | "createdAt" | "updatedAt"> {
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return {
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name: requiredText(body.name, "模板名称", 80),
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description: optionalText(body.description, 240),
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prompt: requiredText(body.prompt, "预设提示词", 4000),
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previewImageUrl: optionalPreviewUrl(body.previewImageUrl),
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settings: normalizeTemplateSettings(body.settings),
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sortOrder: optionalNumber(body.sortOrder) ?? 0
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};
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}
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export function normalizeImageTemplateUpdate(body: ImageTemplateBody): ImageTemplatePatch {
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const patch: ImageTemplatePatch = {};
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if ("name" in body) patch.name = requiredText(body.name, "模板名称", 80);
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if ("description" in body) patch.description = optionalText(body.description, 240);
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if ("prompt" in body) patch.prompt = requiredText(body.prompt, "预设提示词", 4000);
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if ("previewImageUrl" in body) patch.previewImageUrl = optionalPreviewUrl(body.previewImageUrl);
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if ("settings" in body) patch.settings = normalizeTemplateSettings(body.settings);
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if ("sortOrder" in body) patch.sortOrder = optionalNumber(body.sortOrder) ?? 0;
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return patch;
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}
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function requiredText(value: unknown, label: string, maxLength: number): string {
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const text = optionalText(value, maxLength);
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if (!text) throw new Error(`${label}不能为空`);
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return text;
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}
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function optionalText(value: unknown, maxLength: number): string | undefined {
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if (value === undefined || value === null) return undefined;
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const text = String(value).trim();
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if (!text) return undefined;
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return text.slice(0, maxLength);
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}
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function optionalPreviewUrl(value: unknown): string | undefined {
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const url = optionalText(value, 1000);
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if (!url) return undefined;
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if (url.startsWith("/") || /^https?:\/\//i.test(url)) return url;
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throw new Error("效果预览图地址必须是 http(s) 或站内路径");
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}
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function normalizeTemplateSettings(value: unknown): ImageTemplate["settings"] {
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if (!isRecord(value)) return {};
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const width = optionalPositiveInteger(value.width);
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const height = optionalPositiveInteger(value.height);
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const engine = normalizeImageEngine(value.engine);
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const scale = optionalScale(value.scale);
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const quality = normalizeQuality(value.quality);
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return {
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...(engine ? { engine } : {}),
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...(width && height ? { width, height } : {}),
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...(typeof value.forceSingle === "boolean" ? { forceSingle: value.forceSingle } : {}),
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...(scale !== undefined ? { scale } : {}),
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...(quality ? { quality } : {})
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};
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}
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function optionalNumber(value: unknown): number | undefined {
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if (value === undefined || value === null || value === "") return undefined;
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const parsed = Number(value);
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return Number.isFinite(parsed) ? Math.trunc(parsed) : undefined;
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}
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function optionalPositiveInteger(value: unknown): number | undefined {
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const parsed = optionalNumber(value);
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if (!parsed || parsed < 1) return undefined;
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return Math.min(parsed, 8192);
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}
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function optionalScale(value: unknown): number | undefined {
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const parsed = optionalNumber(value);
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if (parsed === undefined) return undefined;
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return Math.max(1, Math.min(100, parsed));
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}
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function normalizeImageEngine(value: unknown): ImageTemplate["settings"]["engine"] | undefined {
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const text = optionalText(value, 20);
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if (text === "jimeng" || text === "evolink") return text;
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return undefined;
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}
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function normalizeQuality(value: unknown): ImageTemplate["settings"]["quality"] | undefined {
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const text = optionalText(value, 20);
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if (text === "low" || text === "medium" || text === "high") return text;
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return undefined;
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}
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function isRecord(value: unknown): value is Record<string, unknown> {
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return typeof value === "object" && value !== null && !Array.isArray(value);
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}
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