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

listBatchTasks(query: { tenantId?: string; status?: string }) {
    return this.prisma.smsBatchTask.findMany({
      where: { tenantId: query.tenantId, status: query.status, sourceType: 'client' },
      include: { apiRequests: true },
      orderBy: { createdAt: 'desc' },
    });
  }
async listClientBatchTasks(query: { tenantId?: string; status?: string }) {
    const items = await this.listBatchTasks(query);
    return items.map(clientBatchTaskView);
  }
listMessages(query: MessageQuery) {
    return this.prisma.smsMessageRecord.findMany({
      where: messageWhere(query),
      include: {
        tenant: true,
        application: true,
        channel: true,
        submitRecords: { include: { channel: true, channelGroup: true } },
        receiptRecords: { include: { channel: true } },
        downstreamDeliveries: {
          where: { deliveryType: 'receipt' },
          select: { id: true, deliveryType: true, status: true, deliveredAt: true, lastError: true },
        },
      },
      orderBy: { queuedAt: 'desc' },
    });
  }
async listMessagesPage(query: MessageQuery) {
    const page = Math.max(1, Math.floor(Number(query.page) || 1));
    const pageSize = Math.min(100, Math.max(1, Math.floor(Number(query.pageSize) || 25)));
    const where = messageWhere(query);
    const [items, total] = await Promise.all([
      this.prisma.smsMessageRecord.findMany({
        where,
        select: {
          id: true,
          tenantId: true,
          applicationId: true,
          channelId: true,
          messageId: true,
          phoneNumber: true,
          carrier: true,
          province: true,
          content: true,
          hasDrainageContent: true,
          drainageDetection: true,
          billingUnits: true,
          amountCents: true,
          status: true,
          submitStatus: true,
          queuedAt: true,
          tenant: { select: { id: true, name: true } },
          application: { select: { id: true, name: true } },
          channel: { select: { id: true, name: true } },
        },
        orderBy: [{ queuedAt: 'desc' }, { id: 'desc' }],
        skip: (page - 1) * pageSize,
        take: pageSize,
      }),
      this.prisma.smsMessageRecord.count({ where }),
    ]);
    return { items, total, page, pageSize };
  }

async getMessage(id: string) {
    const item = await this.prisma.smsMessageRecord.findUnique({
      where: { id },
      include: {
        tenant: { select: { id: true, name: true } },
        application: { select: { id: true, name: true } },
        channel: { select: { id: true, name: true, srcId: true } },
        submitRecords: {
          select: {
            id: true,
            submitId: true,
            channelId: true,
            channelGroupId: true,
            channelGroupName: true,
            gatewayMessageId: true,
            submitStatus: true,
            submittedAt: true,
            createdAt: true,
            channel: { select: { id: true, name: true } },
            channelGroup: { select: { id: true, name: true } },
          },
        },
        receiptRecords: {
          select: {
            id: true,
            messageId: true,
            gatewayMessageId: true,
            receiptStatus: true,
            rawStatus: true,
            errorCode: true,
            errorMessage: true,
            deliveredAt: true,
            createdAt: true,
            channelId: true,
            channel: { select: { id: true, name: true } },
          },
        },
        downstreamDeliveries: {
          where: { deliveryType: 'receipt' },
          select: { id: true, deliveryType: true, status: true, deliveredAt: true, lastError: true },
        },
      },
    });
    if (!item) throw new NotFoundException('Message record not found');
    return item;
  }
async exportMessages(query: MessageQuery) {
    const items = await this.prisma.smsMessageRecord.findMany({
      where: messageWhere(query),
      select: {
        messageId: true,
        queuedAt: true,
        phoneNumber: true,
        province: true,
        carrier: true,
        billingUnits: true,
        amountCents: true,
        status: true,
        submitStatus: true,
        deliveredAt: true,
        content: true,
        hasDrainageContent: true,
        tenant: { select: { name: true } },
        application: { select: { name: true } },
        channel: { select: { name: true } },
      },
      orderBy: [{ queuedAt: 'desc' }, { id: 'desc' }],
    });
    const rows = [
      ['消息编号', '企业', '应用', '提交时间', '手机号', '地区', '运营商', '计费条数', '金额', '通道', '状态', '是否含引流', '回执时间', '短信内容'],
      ...items.map((item) => [
        item.messageId,
        item.tenant?.name ?? '',
        item.application?.name ?? '',
        item.queuedAt.toISOString(),
        item.phoneNumber,
        item.province ?? '',
        item.carrier ?? '',
        String(item.billingUnits),
        String(moneyToNumber(item.amountCents)),
        item.channel?.name ?? '',
        item.status === 'submit_failed' || ['rejected', 'timeout'].includes(item.submitStatus ?? '') ? 'submit_failed' : item.status,
        item.hasDrainageContent === true ? '是' : item.hasDrainageContent === false ? '否' : '未检测',
        item.deliveredAt?.toISOString() ?? '',
        item.content,
      ]),
    ];
    return {
      fileName: `sms-records-${formatExportTimestamp(new Date())}.csv`,
      content: rows.map((row) => row.map((cell) => escapeCsvCell(String(cell))).join(',')).join('\n'),
    };
  }
async listClientMessages(query: MessageQuery) {
    const items = await this.listMessages(query);
    return items.map(clientMessageView);
  }
async listClientMessagesPage(query: MessageQuery) {
    const result = await this.listMessagesPage(query);
    return { ...result, items: result.items.map(clientMessageView) };
  }
}