import { count, desc, eq } from "drizzle-orm";
import { db } from "@/lib/db";
import { users } from "@/modules/_core/schema";
import { bangEvents } from "../schema";

export type BangStatsDto = {
  total: number;
  recent: RecentBangDto[];
};

export type RecentBangDto = {
  id: string;
  occurredOn: string;
  recordedByName: string | null;
};

export async function getBangStats(householdId: string, limit: number): Promise<BangStatsDto> {
  const [totalRow] = await db
    .select({ total: count() })
    .from(bangEvents)
    .where(eq(bangEvents.householdId, householdId));

  const recent = await db
    .select({
      id: bangEvents.id,
      occurredOn: bangEvents.occurredOn,
      recordedByName: users.name,
    })
    .from(bangEvents)
    .leftJoin(users, eq(bangEvents.recordedBy, users.id))
    .where(eq(bangEvents.householdId, householdId))
    .orderBy(desc(bangEvents.occurredOn), desc(bangEvents.createdAt))
    .limit(limit);

  return {
    total: totalRow?.total ?? 0,
    recent,
  };
}