first commit

libs/api/tracker/application/src/lib/commands/update-release.command-handler.ts

@@ -0,0 +1,37 @@
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
+import { ReleaseNamesRepository } from '../ports/release-names.repository';
+import { CommandResult, ack } from './command-result';
+import { UpdateReleaseCommand } from './update-release.command';
+import { WriteAccess } from './write-access';
+
+@CommandHandler(UpdateReleaseCommand)
+export class UpdateReleaseCommandHandler
+  implements ICommandHandler<UpdateReleaseCommand>
+{
+  constructor(
+    private readonly access: WriteAccess,
+    private readonly releaseNames: ReleaseNamesRepository,
+  ) {}
+
+  async execute(command: UpdateReleaseCommand): Promise<CommandResult> {
+    const release = await this.access.release(command.releaseId);
+    (await this.access.project(release.projectId)).assertCanManage(
+      command.actorId,
+    );
+
+    const previousName = release.name;
+    release.update(command.actorId, command.changes);
+    if (release.name !== previousName) {
+      await this.releaseNames.reserve(
+        release.projectId,
+        release.name,
+        release.id,
+      );
+    }
+    await release.commitAndWait();
+    if (release.name !== previousName) {
+      await this.releaseNames.free(release.projectId, previousName);
+    }
+    return ack(release);
+  }
+}