import { BadRequestException, NotFoundException } from '@nestjs/common';
import { Prisma } from '@prisma/client';
import { randomUUID } from 'node:crypto';
import { moneyToNumber } from '../../common/money';
import { PrismaService } from '../../prisma/prisma.service';
import type { MessageQuery, TraceQuery, OperationLogQuery, GatewaySubmitDeadLetterQuery, DownstreamDeliveryQuery, DownstreamDeliveryDashboardQuery, DownstreamRecoveryStatusQuery, MessageSegmentAuditQuery, SignatureQualityQuery } from '../operations.contracts';
import { messageWhere, recognizedCarrierValues, carrierWhere, startOfShanghaiDay, endOfShanghaiDay, qualityBusinessDay, shanghaiDateKey, normalizeGroupBy, returnedTransactionWhere, createdAtRange, downstreamAlertPendingMinutes, downstreamAlertRecentFailedHours, downstreamAlertWindows, downstreamAlertWhere, stalledPendingWhere, downstreamDeliveryScopedWhere, parseDateBoundary, downstreamRecoveryStatusWhere, escapeCsvCell, formatCsvDate, formatExportTimestamp, clientApplicationView, clientReceiptView, clientMessageView, clientBatchTaskView, clientUplinkView, clientAccountView, clientRechargeView, summarizeMessageGroups, groupDownstreamByType, groupDownstreamByApplication, positiveInteger, operationLogLevelWhere, normalizeOperationLog, sanitizeGatewaySubmitException, redactGatewayCommandValue } from '../operations.helpers';

// R2 uplink query domain. Method bodies are preserved byte-for-byte from the facade baseline.
export class OperationsUplinkQueries {
  constructor(private readonly prisma: PrismaService) {}

listUplinkMessages(query: { tenantId?: string; channelId?: string; applicationId?: string; phoneNumber?: string; keyword?: string; startTime?: string; endTime?: string; page?: number; pageSize?: number }) {
    return this.prisma.smsUplinkMessage.findMany({
      where: {
        tenantId: query.tenantId,
        channelId: query.channelId,
        applicationId: query.applicationId,
        phoneNumber: query.phoneNumber ? { contains: query.phoneNumber } : undefined,
        content: query.keyword ? { contains: query.keyword } : undefined,
        receivedAt: query.startTime || query.endTime ? { gte: query.startTime ? new Date(query.startTime) : undefined, lte: query.endTime ? new Date(query.endTime) : undefined } : undefined,
      },
      include: {
        tenant: true,
        application: true,
        channel: true,
        messageRecord: { include: { application: true } },
        matchCandidates: {
          include: {
            tenant: true,
            application: true,
            messageRecord: { include: { application: true, tenant: true, channel: true } },
          },
          orderBy: [{ status: 'asc' }, { confidence: 'desc' }, { createdAt: 'asc' }],
        },
      },
      orderBy: { receivedAt: 'desc' },
      skip: query.page && query.pageSize ? (query.page - 1) * query.pageSize : undefined,
      take: query.pageSize ?? 500,
    });
  }
async listClientUplinkMessages(query: { tenantId?: string; applicationId?: string; phoneNumber?: string; keyword?: string; startTime?: string; endTime?: string; page?: number; pageSize?: number }) {
    const items = await this.listUplinkMessages(query);
    return items.map(clientUplinkView);
  }
async listUplinkMessagesPage(query: { tenantId?: string; channelId?: string; applicationId?: string; phoneNumber?: string; keyword?: string; startTime?: string; endTime?: string; page?: number; pageSize?: number }, clientView = false) {
    const page = Math.max(1, Math.floor(Number(query.page) || 1));
    const pageSize = Math.min(100, Math.max(1, Math.floor(Number(query.pageSize) || 10)));
    const where: Prisma.SmsUplinkMessageWhereInput = {
      tenantId: query.tenantId,
      channelId: query.channelId,
      applicationId: query.applicationId,
      phoneNumber: query.phoneNumber ? { contains: query.phoneNumber } : undefined,
      content: query.keyword ? { contains: query.keyword } : undefined,
      receivedAt: query.startTime || query.endTime ? {
        gte: query.startTime ? new Date(query.startTime) : undefined,
        lte: query.endTime ? new Date(query.endTime) : undefined,
      } : undefined,
    };
    const [rawItems, total] = await Promise.all([
      this.listUplinkMessages({ ...query, page, pageSize }),
      this.prisma.smsUplinkMessage.count({ where }),
    ]);
    return {
      items: clientView ? rawItems.map(clientUplinkView) : rawItems,
      total,
      page,
      pageSize,
    };
  }
async monitor(query: { tenantId?: string; channelId?: string }) {
    const where = messageWhere(query);
    const [byStatus, recentMessages, recentReceipts, recentUplinks] = await Promise.all([
      this.prisma.smsMessageRecord.groupBy({ by: ['status'], where, _count: { _all: true } }),
      this.prisma.smsMessageRecord.findMany({
        where,
        include: { submitRecords: true, receiptRecords: true },
        orderBy: { queuedAt: 'desc' },
        take: 20,
      }),
      this.prisma.smsReceiptRecord.findMany({
        where: { tenantId: query.tenantId, channelId: query.channelId },
        orderBy: { createdAt: 'desc' },
        take: 20,
      }),
      this.listUplinkMessages({ tenantId: query.tenantId, channelId: query.channelId }),
    ]);
    return {
      byStatus,
      recentMessages,
      recentReceipts,
      recentUplinks: recentUplinks.slice(0, 20),
    };
  }
}