From 4ccd76fcdda782e69132ac11c37e804185649fc9 Mon Sep 17 00:00:00 2001
From: Carson Full <carson_full@tsco.org>
Date: Tue, 4 Jun 2024 10:04:04 -0500
Subject: [PATCH] Expose `Language.engagements`

---
 .../engagement/dto/list-engagements.dto.ts    |  2 ++
 .../engagement/engagement.repository.ts       |  5 +++++
 src/components/language/language.resolver.ts  | 20 +++++++++++++++++++
 src/components/language/language.service.ts   | 18 ++++++++++++++++-
 4 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/src/components/engagement/dto/list-engagements.dto.ts b/src/components/engagement/dto/list-engagements.dto.ts
index d8d62f3d9d..9487de4bb6 100644
--- a/src/components/engagement/dto/list-engagements.dto.ts
+++ b/src/components/engagement/dto/list-engagements.dto.ts
@@ -23,6 +23,8 @@ export abstract class EngagementFilters {
 
   readonly projectId?: ID;
 
+  readonly languageId?: ID;
+
   readonly partnerId?: ID<'Partner'>;
 }
 
diff --git a/src/components/engagement/engagement.repository.ts b/src/components/engagement/engagement.repository.ts
index 386c67f308..1e24dc2811 100644
--- a/src/components/engagement/engagement.repository.ts
+++ b/src/components/engagement/engagement.repository.ts
@@ -381,6 +381,11 @@ export class EngagementRepository extends CommonRepository {
             relation('out', '', 'partner'),
             node('', 'Partner', { id }),
           ]),
+          languageId: filter.pathExists((id) => [
+            node('node'),
+            relation('out', '', 'language'),
+            node('', 'Language', { id }),
+          ]),
         }),
       )
       .apply(
diff --git a/src/components/language/language.resolver.ts b/src/components/language/language.resolver.ts
index 2dbcd7b6b0..0aebce4002 100644
--- a/src/components/language/language.resolver.ts
+++ b/src/components/language/language.resolver.ts
@@ -23,6 +23,8 @@ import {
 } from '~/common';
 import { Loader, LoaderOf } from '~/core';
 import { IdsAndView, IdsAndViewArg } from '../changeset/dto';
+import { EngagementLoader } from '../engagement';
+import { EngagementListInput, SecuredEngagementList } from '../engagement/dto';
 import { LocationLoader } from '../location';
 import { LocationListInput, SecuredLocationList } from '../location/dto';
 import { ProjectLoader } from '../project';
@@ -149,6 +151,24 @@ export class LanguageResolver {
     return list;
   }
 
+  @ResolveField(() => SecuredEngagementList, {
+    description: "The list of the language's engagements.",
+  })
+  async engagements(
+    @AnonSession() session: Session,
+    @Parent() language: Language,
+    @ListArg(EngagementListInput) input: EngagementListInput,
+    @Loader(EngagementLoader) loader: LoaderOf<EngagementLoader>,
+  ): Promise<SecuredEngagementList> {
+    const list = await this.langService.listEngagements(
+      language,
+      input,
+      session,
+    );
+    loader.primeAll(list.items);
+    return list;
+  }
+
   @Query(() => LanguageListOutput, {
     description: 'Look up languages',
   })
diff --git a/src/components/language/language.service.ts b/src/components/language/language.service.ts
index 2ebc6fa830..43551719cd 100644
--- a/src/components/language/language.service.ts
+++ b/src/components/language/language.service.ts
@@ -13,7 +13,7 @@ import {
 import { HandleIdLookup, ILogger, Logger } from '~/core';
 import { Privileges } from '../authorization';
 import { EngagementService } from '../engagement';
-import { EngagementStatus } from '../engagement/dto';
+import { EngagementListInput, EngagementStatus } from '../engagement/dto';
 import { LocationService } from '../location';
 import { LocationListInput, SecuredLocationList } from '../location/dto';
 import { ProjectService } from '../project';
@@ -165,6 +165,22 @@ export class LanguageService {
     };
   }
 
+  async listEngagements(
+    language: Language,
+    input: EngagementListInput,
+    session: Session,
+  ) {
+    const list = await this.engagementService.list(
+      { ...input, filter: { ...input.filter, languageId: language.id } },
+      session,
+    );
+    return {
+      ...list,
+      canRead: true,
+      canCreate: false,
+    };
+  }
+
   async sponsorStartDate(
     language: Language,
     session: Session,