From c33680508b26525eec538a2e1e7265fd6f4f83be Mon Sep 17 00:00:00 2001
From: Carson Full <carson_full@tsco.org>
Date: Wed, 11 Jun 2025 15:00:09 -0500
Subject: [PATCH] Replace FOD memberships on open projects when a FieldRegion's
 zone changes

---
 ...ector-change-to-project-members.handler.ts | 50 +++++++++++++++++++
 .../project-member/project-member.module.ts   |  2 +
 2 files changed, 52 insertions(+)
 create mode 100644 src/components/project/project-member/handlers/regions-zone-changes-applies-director-change-to-project-members.handler.ts

diff --git a/src/components/project/project-member/handlers/regions-zone-changes-applies-director-change-to-project-members.handler.ts b/src/components/project/project-member/handlers/regions-zone-changes-applies-director-change-to-project-members.handler.ts
new file mode 100644
index 0000000000..0f07d65d38
--- /dev/null
+++ b/src/components/project/project-member/handlers/regions-zone-changes-applies-director-change-to-project-members.handler.ts
@@ -0,0 +1,50 @@
+import { EventsHandler, ILogger, Logger, ResourceLoader } from '~/core';
+import { FieldRegionUpdatedEvent } from '../../../field-region/events/field-region-updated.event';
+import { ProjectMemberRepository } from '../project-member.repository';
+
+@EventsHandler(FieldRegionUpdatedEvent)
+export class RegionsZoneChangesAppliesDirectorChangeToProjectMembersHandler {
+  constructor(
+    private readonly repo: ProjectMemberRepository,
+    private readonly resources: ResourceLoader,
+    @Logger('project:members') private readonly logger: ILogger,
+  ) {}
+
+  async handle(event: FieldRegionUpdatedEvent) {
+    const oldZoneId = event.previous.fieldZone.id;
+    const newZoneId = event.input.fieldZoneId;
+    if (!newZoneId) {
+      return;
+    }
+    const [oldZone, newZone] = await Promise.all([
+      this.resources.load('FieldZone', oldZoneId),
+      this.resources.load('FieldZone', newZoneId),
+    ]);
+    const oldDirector = oldZone.director.value;
+    const newDirector = newZone.director.value;
+    if (!oldDirector || !newDirector) {
+      // Shouldn't really happen. I think everyone can see zones & directors rn.
+      throw new Error(
+        'Cannot read field zone directors to apply project membership changes',
+      );
+    }
+
+    const stats = await this.repo.replaceMembershipsOnOpenProjects(
+      oldDirector.id,
+      newDirector.id,
+      'FieldOperationsDirector',
+    );
+
+    this.logger.notice(
+      "FieldRegion's zone changed - Replaced FOD director memberships on open projects",
+      {
+        location: event.updated.id,
+        oldZone: oldZoneId,
+        newZone: newZoneId,
+        oldDirector: oldDirector.id,
+        newDirector: newDirector.id,
+        ...stats,
+      },
+    );
+  }
+}
diff --git a/src/components/project/project-member/project-member.module.ts b/src/components/project/project-member/project-member.module.ts
index d6258155ff..0856380ca5 100644
--- a/src/components/project/project-member/project-member.module.ts
+++ b/src/components/project/project-member/project-member.module.ts
@@ -5,6 +5,7 @@ import { UserModule } from '../../user/user.module';
 import { ProjectModule } from '../project.module';
 import { AvailableRolesToProjectResolver } from './available-roles-to-project.resolver';
 import { DirectorChangeApplyToProjectMembersHandler } from './handlers/director-change-apply-to-project-members.handler';
+import { RegionsZoneChangesAppliesDirectorChangeToProjectMembersHandler } from './handlers/regions-zone-changes-applies-director-change-to-project-members.handler';
 import { AddInactiveAtMigration } from './migrations/add-inactive-at.migration';
 import { ProjectMemberGelRepository } from './project-member.gel.repository';
 import { ProjectMemberLoader } from './project-member.loader';
@@ -26,6 +27,7 @@ import { ProjectMemberService } from './project-member.service';
     ProjectMemberLoader,
     AddInactiveAtMigration,
     DirectorChangeApplyToProjectMembersHandler,
+    RegionsZoneChangesAppliesDirectorChangeToProjectMembersHandler,
   ],
   exports: [ProjectMemberService],
 })