john
96 lines
5.0 KiB
JavaScript
96 lines
5.0 KiB
JavaScript
import {
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IMAGE_GENERATION_MODE,
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resolveImageGenerationDecision,
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} from '../chat-intent-router.mjs';
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export const WECHAT_PAGE_THUMBNAIL_MODE = {
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AUTO: 'auto',
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REQUIRED_FRESH: 'required_fresh',
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};
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const INLINE_IMAGE_REQUIRED_PATTERNS = [
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/(?:正文|内容|段落|章节).{0,12}(?:配图|插图|图片)/u,
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/(?:每段|每章|文中|文章中).{0,12}(?:配图|插图|图片)/u,
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/(?:多张|若干张|几张).{0,12}(?:配图|插图|图片)/u,
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];
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export function resolveWechatImageGenerationPolicy({
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text,
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isPageGenerate = false,
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requireFreshPageThumbnail = false,
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} = {}) {
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const normalizedText = String(text ?? '').trim();
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const requested = resolveImageGenerationDecision({ text: normalizedText });
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const pageThumbnailMode = isPageGenerate && requireFreshPageThumbnail
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? WECHAT_PAGE_THUMBNAIL_MODE.REQUIRED_FRESH
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: WECHAT_PAGE_THUMBNAIL_MODE.AUTO;
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const inlineImageMode = requested.mode === IMAGE_GENERATION_MODE.DISABLED
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? IMAGE_GENERATION_MODE.DISABLED
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: INLINE_IMAGE_REQUIRED_PATTERNS.some((pattern) => pattern.test(normalizedText))
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? IMAGE_GENERATION_MODE.REQUIRED
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: IMAGE_GENERATION_MODE.AUTO;
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const standaloneImageMode = isPageGenerate
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? IMAGE_GENERATION_MODE.AUTO
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: requested.mode;
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return {
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channel: 'wechat_mp',
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imageGenerationMode: pageThumbnailMode === WECHAT_PAGE_THUMBNAIL_MODE.REQUIRED_FRESH
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? IMAGE_GENERATION_MODE.REQUIRED
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: standaloneImageMode,
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pageThumbnailMode,
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inlineImageMode,
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standaloneImageMode,
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requested,
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};
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}
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export function buildWechatImageRunMetadata(policy) {
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if (!policy) return { channel: 'wechat_mp' };
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return {
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channel: 'wechat_mp',
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imageGenerationMode: policy.imageGenerationMode,
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pageThumbnailMode: policy.pageThumbnailMode,
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inlineImageMode: policy.inlineImageMode,
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};
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}
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export function buildWechatStandaloneImageInstruction(policy, { sourceMessageId = '' } = {}) {
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if (!policy || policy.standaloneImageMode === IMAGE_GENERATION_MODE.AUTO) return '';
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if (policy.standaloneImageMode === IMAGE_GENERATION_MODE.DISABLED) {
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return '【图片策略】用户明确不要生成图片。本轮禁止调用 generate_image，只返回文字。';
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}
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const idempotencyKey = sourceMessageId
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? `wechat-${String(sourceMessageId).replace(/[^a-zA-Z0-9._-]+/g, '-').slice(0, 80)}-image`
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: '';
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return [
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'【微信服务号生图任务】用户明确要求生成一张新图片。',
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'必须先调用 `load_skill` → `image-generation`，再调用一次 `sandbox-fs__generate_image`，purpose=`inline_image`。',
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'必须使用本轮新返回的 PNG/JPEG/WebP 资产；禁止复用历史图片、SVG、CSS 绘图、占位图或网页图片。',
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idempotencyKey ? `调用 generate_image 时传入 idempotency_key=${idempotencyKey}。` : '',
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'成功后简短说明结果，不要输出内部工具步骤；失败时如实报告，禁止声称已经生成。',
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].filter(Boolean).join('\n');
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}
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export function buildWechatPageImageInstruction(policy, { sourceMessageId = '' } = {}) {
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if (policy?.pageThumbnailMode !== WECHAT_PAGE_THUMBNAIL_MODE.REQUIRED_FRESH) return '';
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const keyPrefix = sourceMessageId
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? `wechat-${String(sourceMessageId).replace(/[^a-zA-Z0-9._-]+/g, '-').slice(0, 72)}-page`
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: 'wechat-page';
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const inlineInstruction = policy.inlineImageMode === IMAGE_GENERATION_MODE.DISABLED
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? '用户明确不要正文图片：页面正文和 Hero 不展示图片，但缩略图源图仍必须生成并只写入 mindspace-cover.cover。'
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: policy.inlineImageMode === IMAGE_GENERATION_MODE.REQUIRED
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? '用户明确要求正文配图：缩略图源图之外，只有正文确实需要不同画面时才可按需调用 inline_image。'
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: '正文独立插图按意图判断；没有明确必要时不要额外调用 inline_image。';
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return [
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'【服务号页面新缩略图硬要求】每个本轮交付给用户的正式内容页面都必须使用本轮新生成、与主题一致的位图作为缩略图源图。',
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'写 HTML 前先调用 `load_skill` → `image-generation`，再为每个正式内容页面各调用一次 `sandbox-fs__generate_image`，优先 purpose=`hero`。',
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`幂等键使用 ${keyPrefix}-<页面序号>-thumbnail；不同正式页面不得共用同一张图。`,
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'同一正式页面在 Agent 层只调用一次 generate_image；工具内部会完成语义重试。返回失败后禁止自行更换提示词并重复调用，交由服务号交付层统一重试。',
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'生成成功后，把返回的 asset.htmlSrc 原样写入对应页面的 mindspace-cover.cover。页面需要主视觉时复用同一张图作为 Hero，禁止再调用 card_cover/feed_cover。',
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'管理后台、密码查看、重定向、下载包装和错误辅助页不属于正式内容页面，不要求单独生图；这类页面必须在 head 写 `<meta name="mindspace-page-role" content="auxiliary">` 供交付守卫识别。',
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inlineInstruction,
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'当前轮没有新的成功 generate_image、没有新 jobId，或正式页面未引用本轮资产时，禁止交付页面链接或声称完成。',
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].join('\n');
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}
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