feat(exam): version templates on dashboard

src/services/exam/examRepository.ts

@@ -8,11 +8,16 @@
 import axios from 'axios';
 
 import { API_BASE } from '../../config/apiConfig';
+import { logger } from '../../debugConfig';
 import { supabase } from '../../supabaseClient';
 import type {
   CreateTemplatePayload,
+  ExamBoundary,
+  ExamQuestion,
+  ExamResponseArea,
   ExamTemplate,
   ExamTemplateDetail,
+  UpdateTemplateMetaPayload,
 } from '../../types/exam.types';
 
 const EXAM_BASE = `${API_BASE}/api/exam`;
@@ -25,6 +30,86 @@ async function authHeaders(): Promise<Record<string, string>> {
   return { Authorization: `Bearer ${session.access_token}` };
 }
 
+function newUuid(): string {
+  if (typeof crypto !== 'undefined' && 'randomUUID' in crypto) {
+    return crypto.randomUUID();
+  }
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
+    const r = Math.floor(Math.random() * 16);
+    const v = c === 'x' ? r : (r % 4) + 8;
+    return v.toString(16);
+  });
+}
+
+function questionPayload(q: ExamQuestion, idMap?: Map<string, string>) {
+  return {
+    id: idMap?.get(q.id) ?? q.id,
+    parent_id: q.parent_id ? (idMap?.get(q.parent_id) ?? q.parent_id) : null,
+    label: q.label,
+    order: q.order,
+    max_marks: q.max_marks,
+    answer_type: q.answer_type,
+    mcq_options: q.mcq_options,
+    mark_scheme: q.mark_scheme ?? {},
+    is_container: q.is_container,
+    spec_ref: q.spec_ref,
+    bounds: q.bounds ?? null,
+    page: q.page ?? null,
+  };
+}
+
+function responseAreaPayload(r: ExamResponseArea, idMap?: Map<string, string>, duplicate = false) {
+  return {
+    id: duplicate ? newUuid() : r.id,
+    question_id: idMap?.get(r.question_id) ?? r.question_id,
+    page: r.page,
+    bounds: r.bounds,
+    kind: r.kind,
+    response_form: r.response_form,
+    context_type: r.context_type ?? null,
+    source: r.source,
+    confirmed: r.confirmed,
+    confidence: r.confidence,
+  };
+}
+
+function boundaryPayload(b: ExamBoundary, idMap?: Map<string, string>, duplicate = false) {
+  return {
+    id: duplicate ? newUuid() : b.id,
+    question_id: b.question_id ? (idMap?.get(b.question_id) ?? b.question_id) : null,
+    label: b.label,
+    page_index: b.page_index,
+    y: b.y,
+    bounds: b.bounds,
+    source: b.source,
+    confirmed: b.confirmed,
+  };
+}
+
+async function replaceTemplate(
+  templateId: string,
+  detail: ExamTemplateDetail,
+  meta?: UpdateTemplateMetaPayload,
+  duplicateIds = false,
+): Promise<ExamTemplateDetail> {
+  const headers = await authHeaders();
+  const idMap = new Map<string, string>();
+  if (duplicateIds) {
+    detail.questions.forEach((q) => idMap.set(q.id, newUuid()));
+  }
+  const res = await axios.put<ExamTemplateDetail>(
+    `${EXAM_BASE}/templates/${templateId}`,
+    {
+      meta,
+      questions: detail.questions.map((q) => questionPayload(q, idMap)),
+      response_areas: detail.response_areas.map((r) => responseAreaPayload(r, idMap, duplicateIds)),
+      boundaries: detail.boundaries.map((b) => boundaryPayload(b, idMap, duplicateIds)),
+    },
+    { headers },
+  );
+  return res.data;
+}
+
 export const examRepository = {
   async listTemplates(includeArchived = false): Promise<ExamTemplate[]> {
     const headers = await authHeaders();
@@ -47,6 +132,38 @@ export const examRepository = {
     return res.data;
   },
 
+  async updateTemplateMeta(templateId: string, meta: UpdateTemplateMetaPayload): Promise<ExamTemplate> {
+    const headers = await authHeaders();
+    const res = await axios.patch<ExamTemplate>(`${EXAM_BASE}/templates/${templateId}`, meta, { headers });
+    return res.data;
+  },
+
+  async duplicateTemplate(templateId: string, title: string): Promise<ExamTemplateDetail> {
+    const detail = await this.getTemplate(templateId);
+    const created = await this.createTemplate({
+      title,
+      subject: detail.subject ?? undefined,
+      exam_id: detail.exam_id ?? undefined,
+      exam_code: detail.exam_code ?? undefined,
+      source_file_id: detail.source_file_id ?? undefined,
+      page_count: detail.page_count ?? undefined,
+      institute_id: detail.institute_id,
+    });
+    try {
+      return await replaceTemplate(created.id, { ...detail, id: created.id }, { title, status: 'draft' }, true);
+    } catch (error) {
+      try {
+        await this.archiveTemplate(created.id);
+      } catch (archiveError) {
+        logger.error('cc-exam-marker', 'Failed to archive incomplete duplicate template', {
+          templateId: created.id,
+          message: archiveError instanceof Error ? archiveError.message : String(archiveError),
+        });
+      }
+      throw error;
+    }
+  },
+
   async archiveTemplate(templateId: string): Promise<void> {
     const headers = await authHeaders();
     await axios.delete(`${EXAM_BASE}/templates/${templateId}`, { headers });