feat: edit guest from guest groups

lib/db/queries/members.ts

@@ -1,5 +1,11 @@
 import { db } from "@/lib/db/client"
 
+export type MemberMutationResult =
+  | { status: "updated"; memberId: string }
+  | { status: "deleted"; memberId: string }
+  | { status: "not_found" }
+  | { status: "last_member" }
+
 export async function listInvitationMembers(invitationId: string) {
   return db
     .selectFrom("invitation_members")
@@ -9,3 +15,152 @@ export async function listInvitationMembers(invitationId: string) {
     .orderBy("created_at", "asc")
     .execute()
 }
+
+export async function updateInvitationMemberName({
+  invitationId,
+  memberId,
+  name,
+  adminEmail,
+}: {
+  invitationId: string
+  memberId: string
+  name: string
+  adminEmail: string
+}): Promise<MemberMutationResult> {
+  return db.transaction().execute(async (trx) => {
+    const member = await trx
+      .selectFrom("invitation_members")
+      .innerJoin("invitations", "invitations.id", "invitation_members.invitation_id")
+      .select(["invitation_members.id", "invitation_members.name", "invitations.display_name"])
+      .where("invitation_members.id", "=", memberId)
+      .where("invitation_members.invitation_id", "=", invitationId)
+      .executeTakeFirst()
+
+    if (!member) return { status: "not_found" }
+
+    const updated = await trx
+      .updateTable("invitation_members")
+      .set({ name, updated_at: new Date() })
+      .where("id", "=", memberId)
+      .where("invitation_id", "=", invitationId)
+      .returning("id")
+      .executeTakeFirst()
+
+    if (!updated) return { status: "not_found" }
+
+    await trx
+      .updateTable("invitations")
+      .set({ updated_at: new Date() })
+      .where("id", "=", invitationId)
+      .execute()
+
+    await trx
+      .insertInto("admin_audit_events")
+      .values({
+        admin_email: adminEmail,
+        action: "invitation_member.updated",
+        target_type: "invitation_member",
+        target_id: memberId,
+        metadata: {
+          invitationId,
+          displayName: member.display_name,
+          previousName: member.name,
+          newName: name,
+        },
+      })
+      .execute()
+
+    return { status: "updated", memberId }
+  })
+}
+
+export async function deleteInvitationMember({
+  invitationId,
+  memberId,
+  adminEmail,
+}: {
+  invitationId: string
+  memberId: string
+  adminEmail: string
+}): Promise<MemberMutationResult> {
+  return db.transaction().execute(async (trx) => {
+    const member = await trx
+      .selectFrom("invitation_members")
+      .innerJoin("invitations", "invitations.id", "invitation_members.invitation_id")
+      .select([
+        "invitation_members.id",
+        "invitation_members.name",
+        "invitation_members.is_primary_contact",
+        "invitations.display_name",
+      ])
+      .where("invitation_members.id", "=", memberId)
+      .where("invitation_members.invitation_id", "=", invitationId)
+      .executeTakeFirst()
+
+    if (!member) return { status: "not_found" }
+
+    const count = await trx
+      .selectFrom("invitation_members")
+      .select((eb) => eb.fn.countAll<string>().as("count"))
+      .where("invitation_id", "=", invitationId)
+      .executeTakeFirstOrThrow()
+    const memberCount = Number(count.count)
+
+    if (memberCount <= 1) return { status: "last_member" }
+
+    let promotedMemberId: string | null = null
+    if (member.is_primary_contact) {
+      const replacement = await trx
+        .selectFrom("invitation_members")
+        .select(["id"])
+        .where("invitation_id", "=", invitationId)
+        .where("id", "!=", memberId)
+        .orderBy("created_at", "asc")
+        .executeTakeFirst()
+
+      if (replacement) {
+        promotedMemberId = replacement.id
+        await trx
+          .updateTable("invitation_members")
+          .set({ is_primary_contact: true, updated_at: new Date() })
+          .where("id", "=", replacement.id)
+          .execute()
+      }
+    }
+
+    const deleted = await trx
+      .deleteFrom("invitation_members")
+      .where("id", "=", memberId)
+      .where("invitation_id", "=", invitationId)
+      .returning("id")
+      .executeTakeFirst()
+
+    if (!deleted) return { status: "not_found" }
+
+    await trx
+      .updateTable("invitations")
+      .set({ updated_at: new Date() })
+      .where("id", "=", invitationId)
+      .execute()
+
+    await trx
+      .insertInto("admin_audit_events")
+      .values({
+        admin_email: adminEmail,
+        action: "invitation_member.deleted",
+        target_type: "invitation_member",
+        target_id: memberId,
+        metadata: {
+          invitationId,
+          displayName: member.display_name,
+          name: member.name,
+          wasPrimary: member.is_primary_contact,
+          promotedMemberId,
+          remainingMembers: memberCount - 1,
+        },
+      })
+      .execute()
+
+    return { status: "deleted", memberId }
+  })
+}