"use server";

import { revalidatePath } from "next/cache";
import { currentUserId } from "@/lib/auth/session";
import { withUser } from "@/lib/db";
import type { ActionResult } from "@/lib/db/rpc";

export async function saveHireDraft(payload: {
  id?: string;
  step: number;
  data: Record<string, unknown>;
}): Promise<ActionResult & { id?: string }> {
  const userId = await currentUserId();
  if (!userId) return { success: false, error: "Nicht angemeldet." };

  try {
    const id = await withUser(userId, async (tx) => {
      if (payload.id) {
        // Ob die Zeile der aufrufenden Person gehört, entscheidet die
        // Policy hire_drafts_owner — nicht eine Prüfung hier.
        await tx
          .updateTable("hire_drafts")
          .set({ step: payload.step, payload: payload.data, updated_at: new Date().toISOString() })
          .where("id", "=", payload.id)
          .execute();
        return payload.id;
      }

      const row = await tx
        .insertInto("hire_drafts")
        .values({ created_by: userId, step: payload.step, payload: payload.data })
        .returning("id")
        .executeTakeFirstOrThrow();
      return row.id;
    });

    revalidatePath("/");
    return { success: true, id };
  } catch (err) {
    return { success: false, error: err instanceof Error ? err.message : "Unbekannter Fehler." };
  }
}

export async function deleteHireDraft(id: string): Promise<ActionResult> {
  try {
    await withUser(await currentUserId(), (tx) => tx.deleteFrom("hire_drafts").where("id", "=", id).execute());
    revalidatePath("/");
    return { success: true };
  } catch (err) {
    return { success: false, error: err instanceof Error ? err.message : "Unbekannter Fehler." };
  }
}