feat: invitation deletion

lib/db/queries/invitations.ts

@@ -75,6 +75,69 @@ export async function createInvitationWithMembers(input: CreateInvitationInput)
   })
 }
 
+export interface DeletedInvitationResult {
+  id: string
+  displayName: string
+  photoObjectKey: string | null
+}
+
+export async function deleteInvitationGroup(
+  invitationId: string,
+  adminEmail: string,
+): Promise<DeletedInvitationResult | null> {
+  return db.transaction().execute(async (trx) => {
+    const invitation = await trx
+      .selectFrom("invitations")
+      .select(["id", "display_name", "token"])
+      .where("id", "=", invitationId)
+      .executeTakeFirst()
+
+    if (!invitation) return null
+
+    const photoUpload = await trx
+      .selectFrom("photo_uploads")
+      .select(["object_key"])
+      .where("invitation_id", "=", invitationId)
+      .executeTakeFirst()
+
+    const membersCount = await trx
+      .selectFrom("invitation_members")
+      .select((eb) => eb.fn.countAll<string>().as("count"))
+      .where("invitation_id", "=", invitationId)
+      .executeTakeFirst()
+
+    await trx
+      .insertInto("admin_audit_events")
+      .values({
+        admin_email: adminEmail,
+        action: "invitation.deleted",
+        target_type: "invitation",
+        target_id: invitationId,
+        metadata: {
+          displayName: invitation.display_name,
+          token: invitation.token,
+          membersCount: Number(membersCount?.count ?? 0),
+          photoObjectKey: photoUpload?.object_key ?? null,
+        },
+      })
+      .execute()
+
+    const deleted = await trx
+      .deleteFrom("invitations")
+      .where("id", "=", invitationId)
+      .returning(["id", "display_name"])
+      .executeTakeFirst()
+
+    if (!deleted) return null
+
+    return {
+      id: deleted.id,
+      displayName: deleted.display_name,
+      photoObjectKey: photoUpload?.object_key ?? null,
+    }
+  })
+}
+
 export async function listInvitations(): Promise<InvitationListItem[]> {
   const invitations = await db
     .selectFrom("invitations")

lib/validation/invitation.ts

@@ -45,4 +45,9 @@ export const createInvitationSchema = z
     path: ["members"],
   })
 
+export const deleteInvitationSchema = z.object({
+  invitationId: z.uuid(),
+})
+
 export type CreateInvitationInput = z.infer<typeof createInvitationSchema>
+export type DeleteInvitationInput = z.infer<typeof deleteInvitationSchema>