Make logic in resume-translate-service more robust

src/SIL.XForge.Scripture/ClientApp/src/app/checking/checking/resume-translate.service.spec.ts

@@ -2,7 +2,7 @@ import { fakeAsync, flush, TestBed, tick } from '@angular/core/testing';
 import { ActivatedRouteSnapshot, NavigationEnd, Params, Router } from '@angular/router';
 import { OtJson0Op } from 'ot-json0';
 import { Json0OpBuilder } from 'realtime-server/lib/esm/common/utils/json0-op-builder';
-import { SFProject, SFProjectProfile } from 'realtime-server/lib/esm/scriptureforge/models/sf-project';
+import { SFProject } from 'realtime-server/lib/esm/scriptureforge/models/sf-project';
 import { SFProjectUserConfig } from 'realtime-server/lib/esm/scriptureforge/models/sf-project-user-config';
 import { Chapter, TextInfo } from 'realtime-server/lib/esm/scriptureforge/models/text-info';
 import { BehaviorSubject, Observable, of } from 'rxjs';
@@ -17,7 +17,6 @@ import { SFProjectUserConfigDoc } from '../../core/models/sf-project-user-config
 import { PermissionsService } from '../../core/permissions.service';
 import { SFProjectService } from '../../core/sf-project.service';
 import { ResumeTranslateService } from './resume-translate.service';
-
 describe('ResumeTranslateService', () => {
   const mockRouter = mock(Router);
   const mockUserService = mock(UserService);
@@ -64,19 +63,19 @@ describe('ResumeTranslateService', () => {
 
     service = TestBed.inject(ResumeTranslateService);
 
-    when(mockedProjectDoc.data).thenReturn({
-      texts: [{ bookNum: 40, chapters: [{ number: 1 } as Chapter, { number: 2 } as Chapter] } as TextInfo]
-    } as SFProject);
+    const testSFProject = {
+      texts: [
+        { bookNum: 41, chapters: [{ number: 1 } as Chapter, { number: 2 } as Chapter] } as TextInfo,
+        { bookNum: 40, chapters: [{ number: 1 } as Chapter, { number: 2 } as Chapter] } as TextInfo
+      ]
+    } as SFProject;
+
+    when(mockedProjectDoc.data).thenReturn(testSFProject);
     when(mockProjectService.getUserConfig(anything(), anything())).thenResolve({
       changes$: of([]) as Observable<OtJson0Op[]>,
       data: { selectedTask: 'checking', selectedBookNum: 40, selectedChapterNum: 2 } as SFProjectUserConfig
     } as SFProjectUserConfigDoc);
-    activatedProjectChange$.next({
-      data: {
-        texts: [{ bookNum: 40, chapters: [{ number: 1 } as Chapter, { number: 2 } as Chapter] } as TextInfo]
-      } as SFProjectProfile
-    } as SFProjectProfileDoc);
-
+    activatedProjectChange$.next({ data: testSFProject } as unknown as SFProjectProfileDoc);
     await service['updateProjectUserConfig']('project01');
   });
 

src/SIL.XForge.Scripture/ClientApp/src/app/checking/checking/resume-translate.service.ts

@@ -40,18 +40,23 @@ export class ResumeTranslateService extends ResumeBaseService {
       filter(([projectDoc, projectUserConfigDoc]) => projectDoc !== undefined && projectUserConfigDoc !== undefined),
       map(([projectDoc, projectUserConfigDoc]) => {
         const project = projectDoc?.data;
-        const config = projectUserConfigDoc?.data;
-        const doesLastBookExist =
-          projectDoc?.data?.texts.find(t => t.bookNum === config?.selectedBookNum) !== undefined;
+        const selectedBookNum: number | undefined = projectUserConfigDoc?.data?.selectedBookNum;
+        const selectedChapterNum: number | undefined = projectUserConfigDoc?.data?.selectedChapterNum;
+        const doesLastSelectedBookExist =
+          selectedBookNum != null && project?.texts.find(t => t.bookNum === selectedBookNum) !== undefined;
 
         let bookNum: number;
         let chapterNum: number;
-        if (doesLastBookExist) {
-          bookNum = config!.selectedBookNum ?? project?.texts[0]?.bookNum ?? Canon.firstBook;
-          chapterNum = config?.selectedChapterNum ?? project?.texts[bookNum]?.chapters[0].number ?? 1;
+        if (doesLastSelectedBookExist) {
+          bookNum = selectedBookNum;
+          const selectedBookInfo = project?.texts.find(t => t.bookNum === selectedBookNum);
+          const selectedChapterExists =
+            selectedChapterNum != null && selectedBookInfo?.chapters.find(c => c.number === selectedChapterNum) != null;
+          chapterNum = selectedChapterExists ? selectedChapterNum : (selectedBookInfo?.chapters[0]?.number ?? 1);
         } else {
-          bookNum = project?.texts[0]?.bookNum ?? Canon.firstBook;
-          chapterNum = project?.texts[bookNum]?.chapters[0].number ?? 1;
+          const bookInfo = project?.texts.slice().sort((a, b) => a.bookNum - b.bookNum)[0];
+          bookNum = bookInfo?.bookNum ?? Canon.firstBook;
+          chapterNum = bookInfo?.chapters[0]?.number ?? 1;
         }
         const bookId = Canon.bookNumberToId(bookNum);
 

src/SIL.XForge.Scripture/ClientApp/src/app/project/project.component.spec.ts

@@ -245,13 +245,13 @@ class TestEnvironment {
               args.hasTexts == null || args.hasTexts
                 ? [
                     {
-                      bookNum: 40,
+                      bookNum: 41,
                       chapters: [],
                       hasSource: false,
                       permissions: {}
                     },
                     {
-                      bookNum: 41,
+                      bookNum: 40,
                       chapters: [],
                       hasSource: false,
                       permissions: {}

src/SIL.XForge.Scripture/ClientApp/src/app/project/project.component.ts

@@ -115,16 +115,17 @@ export class ProjectComponent extends DataLoadingComponent implements OnInit {
     const routePath = ['projects', projectId, task];
     let bookNum: number | undefined = projectUserConfig.selectedBookNum;
     if (bookNum == null || !project.texts.some(t => t.bookNum === bookNum)) {
-      bookNum = project.texts[0]?.bookNum;
+      bookNum = project.texts.slice().sort((a, b) => a.bookNum - b.bookNum)[0]?.bookNum;
     }
 
     if (bookNum != null) {
       routePath.push(Canon.bookNumberToId(bookNum));
 
-      const chapterNum: number | undefined =
-        projectUserConfig.selectedChapterNum ?? project.texts[bookNum]?.chapters[0]?.number;
+      const bookInfo = project.texts.find(t => t.bookNum === bookNum);
+      const chapterNum: number | undefined = projectUserConfig.selectedChapterNum ?? bookInfo?.chapters[0]?.number;
+      const chapterExists = chapterNum != null && bookInfo?.chapters.some(c => c.number === chapterNum);
 
-      if (chapterNum != null) {
+      if (chapterNum != null && chapterExists) {
         routePath.push(chapterNum.toString());
       }
     }