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src/components/common/legalDocuments.ts

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+import disclaimerMarkdown from '../../../media/files/disclaimer.md?raw';
+import privacyPolicyMarkdown from '../../../media/files/privacy_policy.md?raw';
+import userAgreementMarkdown from '../../../media/files/user_agreement.md?raw';
+
+export type LegalDocumentId =
+  | 'user-agreement'
+  | 'privacy-policy'
+  | 'disclaimer';
+
+export type LegalDocumentBlock =
+  | {
+      type: 'heading';
+      level: 2 | 3;
+      text: string;
+    }
+  | {
+      type: 'paragraph';
+      text: string;
+    }
+  | {
+      type: 'list';
+      items: string[];
+    };
+
+export type LegalDocument = {
+  id: LegalDocumentId;
+  title: string;
+  markdown: string;
+  blocks: LegalDocumentBlock[];
+};
+
+export const LEGAL_CONSENT_STORAGE_KEY =
+  'genarrative.auth.legal-consent.v1';
+export const ICP_RECORD_NUMBER = '京ICP备2026025677号';
+export const ICP_RECORD_URL = 'https://beian.miit.gov.cn/';
+
+function normalizeMarkdownInlineText(value: string) {
+  return value.replace(/`([^`]+)`/gu, '$1').trim();
+}
+
+function pushParagraph(
+  blocks: LegalDocumentBlock[],
+  lines: string[],
+) {
+  if (lines.length === 0) {
+    return;
+  }
+
+  const text = normalizeMarkdownInlineText(lines.join('\n'));
+  if (text) {
+    blocks.push({ type: 'paragraph', text });
+  }
+  lines.length = 0;
+}
+
+function pushList(blocks: LegalDocumentBlock[], items: string[]) {
+  if (items.length === 0) {
+    return;
+  }
+
+  blocks.push({
+    type: 'list',
+    items: items.map(normalizeMarkdownInlineText).filter(Boolean),
+  });
+  items.length = 0;
+}
+
+function parseLegalMarkdown(markdown: string): LegalDocumentBlock[] {
+  const blocks: LegalDocumentBlock[] = [];
+  const paragraphLines: string[] = [];
+  const listItems: string[] = [];
+
+  markdown.split(/\r?\n/u).forEach((rawLine) => {
+    const line = rawLine.trim();
+
+    if (!line) {
+      pushParagraph(blocks, paragraphLines);
+      pushList(blocks, listItems);
+      return;
+    }
+
+    const headingMatch = /^(#{2,3})\s+(.+)$/u.exec(line);
+    if (headingMatch) {
+      pushParagraph(blocks, paragraphLines);
+      pushList(blocks, listItems);
+      blocks.push({
+        type: 'heading',
+        level: headingMatch[1]?.length === 2 ? 2 : 3,
+        text: normalizeMarkdownInlineText(headingMatch[2] ?? ''),
+      });
+      return;
+    }
+
+    const listMatch = /^(?:[-*]|\d+[.)、])\s+(.+)$/u.exec(line);
+    if (listMatch) {
+      pushParagraph(blocks, paragraphLines);
+      listItems.push(listMatch[1] ?? '');
+      return;
+    }
+
+    pushList(blocks, listItems);
+    paragraphLines.push(line);
+  });
+
+  pushParagraph(blocks, paragraphLines);
+  pushList(blocks, listItems);
+  return blocks;
+}
+
+const legalDocumentDefinitions = [
+  {
+    id: 'user-agreement',
+    title: '用户协议',
+    markdown: userAgreementMarkdown,
+  },
+  {
+    id: 'privacy-policy',
+    title: '隐私政策',
+    markdown: privacyPolicyMarkdown,
+  },
+  {
+    id: 'disclaimer',
+    title: '免责声明',
+    markdown: disclaimerMarkdown,
+  },
+] satisfies Array<{
+  id: LegalDocumentId;
+  title: string;
+  markdown: string;
+}>;
+
+export const LEGAL_DOCUMENTS: LegalDocument[] = legalDocumentDefinitions.map(
+  (document) => ({
+    ...document,
+    blocks: parseLegalMarkdown(document.markdown),
+  }),
+);
+
+export function getLegalDocument(id: LegalDocumentId) {
+  return LEGAL_DOCUMENTS.find((document) => document.id === id) ?? null;
+}
+
+export function readStoredLegalConsent() {
+  if (typeof window === 'undefined') {
+    return false;
+  }
+
+  return window.localStorage.getItem(LEGAL_CONSENT_STORAGE_KEY) === 'true';
+}
+
+export function persistLegalConsent() {
+  if (typeof window === 'undefined') {
+    return;
+  }
+
+  window.localStorage.setItem(LEGAL_CONSENT_STORAGE_KEY, 'true');
+}