import { Injectable, NotFoundException } from '@nestjs/common';
import { PrismaService } from '../../common/prisma/prisma.module';
import { serializeBigInt } from '../../common/decorators/current-user.decorator';
import { hqOperationLogWhere } from '../../common/event/event.helpers';
import { resolveHqOperationLabel } from '../../common/hq-operation/hq-operation.constants';
import type { AdminHqLogsQueryDto } from './dto/admin-query.dto';

@Injectable()
export class AdminHqLogsService {
  constructor(private readonly prisma: PrismaService) {}

  async list(query: AdminHqLogsQueryDto) {
    const page = query.page ?? 1;
    const pageSize = query.pageSize ?? 20;
    const where = hqOperationLogWhere({
      hqAccountId: query.hqAccountId ? BigInt(query.hqAccountId) : undefined,
      action: query.action,
      refType: query.refType,
      from: query.from ? new Date(query.from) : undefined,
      to: query.to ? new Date(query.to) : undefined,
    });

    const [rows, total] = await Promise.all([
      this.prisma.commonEvent.findMany({
        where,
        orderBy: { createdAt: 'desc' },
        skip: (page - 1) * pageSize,
        take: pageSize,
      }),
      this.prisma.commonEvent.count({ where }),
    ]);

    const hqIds = [...new Set(rows.map((r) => r.actorId).filter((id): id is bigint => id != null))];
    const hqAccounts = hqIds.length
      ? await this.prisma.hqAccount.findMany({
          where: { id: { in: hqIds } },
          select: { id: true, name: true, phone: true, adminRole: true },
        })
      : [];
    const hqMap = new Map(hqAccounts.map((a) => [a.id.toString(), a]));

    return serializeBigInt({
      items: rows.map((row) => {
        const hq = row.actorId ? hqMap.get(row.actorId.toString()) : undefined;
        const action = row.param1Desc === 'action' ? row.param1 : row.param1;
        return {
          id: row.id,
          hqAccountId: row.actorId,
          hqName: hq?.name ?? null,
          hqPhone: hq?.phone ?? null,
          hqRole: hq?.adminRole ?? null,
          action,
          actionLabel: resolveHqOperationLabel(action, row.refType),
          refType: row.param2Desc === 'target_type' ? row.param2 : row.refType,
          refId: row.param3Desc === 'target_id' ? row.param3 : row.refId.toString(),
          status: row.status,
          remark: row.remark,
          detail: row.extraJson,
          createdAt: row.createdAt,
        };
      }),
      total,
      page,
      pageSize,
    });
  }

  async detail(id: bigint) {
    const row = await this.prisma.commonEvent.findFirst({
      where: { id, eventType: 'HQ_OPERATION' },
    });
    if (!row) throw new NotFoundException('操作日志不存在');

    const hq = row.actorId
      ? await this.prisma.hqAccount.findUnique({
          where: { id: row.actorId },
          select: { id: true, name: true, phone: true, adminRole: true },
        })
      : null;

    const action = row.param1Desc === 'action' ? row.param1 : row.param1;
    return serializeBigInt({
      id: row.id,
      hqAccountId: row.actorId,
      hqAccount: hq,
      action,
      actionLabel: resolveHqOperationLabel(action, row.refType),
      refType: row.param2Desc === 'target_type' ? row.param2 : row.refType,
      refId: row.param3Desc === 'target_id' ? row.param3 : row.refId.toString(),
      status: row.status,
      remark: row.remark,
      detail: row.extraJson,
      createdAt: row.createdAt,
    });
  }
}