import { Injectable } from '@nestjs/common';
import { CourierProviderCode } from '../courier.constants';
import { CourierApiError } from '../courier.error';
import type {
  BatchShipmentQuery,
  CourierCallOptions,
  CreateShipmentInput,
  CreateShipmentResult,
  DeliveryCoverageResult,
  FreightEstimateResult,
  ICourierProvider,
  ShipmentDetail,
  ShipmentQuery,
  TrackCallbackResponse,
  TrackCallbackPayload,
  TrackNode,
  CourierMappedOrderStatus,
} from '../courier.types';
import { XiaofeixiaClient } from './xiaofeixia.client';
import { XIAOFEIXIA_CMD } from './xiaofeixia.constants';
import type {
  XiaofeixiaCreateOrderData,
  XiaofeixiaDeliveryCoverageData,
  XiaofeixiaFreightEstimateData,
  XiaofeixiaOrderDetail,
  XiaofeixiaTrackNode,
} from './xiaofeixia.types';

@Injectable()
export class XiaofeixiaProvider implements ICourierProvider {
  readonly code = CourierProviderCode.XIAOFEIXIA;

  constructor(private readonly client: XiaofeixiaClient) {}

  async createShipment(input: CreateShipmentInput, options?: CourierCallOptions): Promise<CreateShipmentResult> {
    const data = await this.client.request<XiaofeixiaCreateOrderData>(
      XIAOFEIXIA_CMD.CREATE_ORDER,
      {
        customerId: input.customerId,
        outNumber: input.outNumber,
        fromAddress: input.from.address,
        fromAddressDetail: input.from.addressDetail,
        fromCoordinate: this.formatCoordinate(input.from.coordinate),
        fromMobile: input.from.mobile,
        fromName: input.from.name,
        toAddress: input.to.address,
        toAddressDetail: input.to.addressDetail,
        toCoordinate: this.formatCoordinate(input.to.coordinate),
        toMobile: input.to.mobile,
        toName: input.to.name,
        goodsName: input.goodsName,
        goodsNum: input.goodsNum,
        weight: input.weight,
        insuredSumPrice: input.insuredSumPrice,
        collectionPrice: input.collectionPrice,
        payMode: input.payMode,
        remark: input.remark,
      },
      options?.xiaofeixia,
    );

    return {
      providerShipmentId: data.id,
      trackingNumber: data.number,
    };
  }

  async cancelShipment(query: ShipmentQuery, options?: CourierCallOptions): Promise<void> {
    this.assertShipmentQuery(query);
    await this.client.request(
      XIAOFEIXIA_CMD.CANCEL_ORDER,
      {
        number: query.trackingNumber,
        outNumber: query.outNumber,
      },
      options?.xiaofeixia,
    );
  }

  async getShipment(query: ShipmentQuery, options?: CourierCallOptions): Promise<ShipmentDetail> {
    this.assertShipmentQuery(query);
    const data = await this.client.request<XiaofeixiaOrderDetail>(
      XIAOFEIXIA_CMD.GET_ORDER,
      {
        number: query.trackingNumber,
        outNumber: query.outNumber,
      },
      options?.xiaofeixia,
    );
    return this.mapOrderDetail(data);
  }

  async batchGetShipments(query: BatchShipmentQuery, options?: CourierCallOptions): Promise<ShipmentDetail[]> {
    const number = query.trackingNumbers?.join(',');
    const outNumber = query.outNumbers?.join(',');

    if (!number && !outNumber) {
      throw new CourierApiError('运单号与商家单号至少传一个', '300000', this.code);
    }

    const data = await this.client.request<XiaofeixiaOrderDetail[]>(
      XIAOFEIXIA_CMD.BATCH_GET_ORDER,
      {
        number,
        outNumber,
      },
      options?.xiaofeixia,
    );

    return (data ?? []).map((item) => this.mapOrderDetail(item));
  }

  async getTrack(query: ShipmentQuery, options?: CourierCallOptions): Promise<TrackNode[]> {
    this.assertShipmentQuery(query);
    const data = await this.client.request<XiaofeixiaTrackNode[]>(
      XIAOFEIXIA_CMD.TRACK_ROUTE,
      {
        number: query.trackingNumber,
        outNumber: query.outNumber,
      },
      options?.xiaofeixia,
    );
    return data ?? [];
  }

  async getSignPhotos(query: ShipmentQuery, options?: CourierCallOptions): Promise<string[]> {
    this.assertShipmentQuery(query);
    const data = await this.client.request<string[]>(
      XIAOFEIXIA_CMD.SIGN_PHOTOS,
      {
        number: query.trackingNumber,
        outNumber: query.outNumber,
      },
      options?.xiaofeixia,
    );
    return (data ?? []).filter((item) => typeof item === 'string' && item.trim().length > 0);
  }

  parseTrackCallback(body: unknown): TrackCallbackPayload | null {
    if (!body || typeof body !== 'object') return null;
    const raw = body as Record<string, unknown>;
    const outNumber = String(raw.outNumber ?? '').trim();
    const trackingNumber = String(raw.number ?? raw.trackingNumber ?? '').trim();
    const status = String(raw.status ?? '').trim();
    const statusName = String(raw.statusName ?? '').trim();
    const trackInfo = String(raw.trackInfo ?? '').trim();
    const createTime = String(raw.createTime ?? '').trim();
    if (!outNumber && !trackingNumber) return null;
    if (!status && !trackInfo) return null;
    return {
      outNumber,
      trackingNumber,
      status,
      statusName,
      trackInfo,
      createTime,
    };
  }

  mapTrackStatus(status: string, statusName?: string): CourierMappedOrderStatus | null {
    const name = (statusName || '').trim();
    if (status === '5' || /签收/.test(name)) {
      return 'COMPLETED';
    }
    switch (String(status).trim()) {
      case '1':
        return 'OUT_WAREHOUSE';
      case '2':
      case '3':
      case '4':
        return 'SHIPPING';
      case '7':
        return null;
      default:
        return null;
    }
  }

  async checkDeliveryCoverage(toAddress: string, options?: CourierCallOptions): Promise<DeliveryCoverageResult> {
    const data = await this.client.request<XiaofeixiaDeliveryCoverageData>(
      XIAOFEIXIA_CMD.DELIVERY_COVERAGE,
      { toAddress },
      options?.xiaofeixia,
    );

    return {
      arriveTime: data.arriveTime,
      siteName: data.name,
      siteId: data.id,
    };
  }

  async estimateFreight(weight: number, options?: CourierCallOptions): Promise<FreightEstimateResult> {
    const data = await this.client.request<XiaofeixiaFreightEstimateData>(
      XIAOFEIXIA_CMD.ESTIMATE_FREIGHT,
      { weight },
      options?.xiaofeixia,
    );

    return { freightPrice: data.freightPrice };
  }

  buildTrackCallbackResponse(success = true): TrackCallbackResponse {
    return {
      code: success ? '100000' : '300000',
      message: success ? 'success' : 'fail',
    };
  }

  private assertShipmentQuery(query: ShipmentQuery): void {
    if (!query.trackingNumber && !query.outNumber) {
      throw new CourierApiError('运单号与商家单号至少传一个', '300000', this.code);
    }
  }

  private formatCoordinate(coordinate?: { lng: number; lat: number }): string | undefined {
    if (!coordinate) return undefined;
    return JSON.stringify({ lng: coordinate.lng, lat: coordinate.lat });
  }

  private mapOrderDetail(data: XiaofeixiaOrderDetail): ShipmentDetail {
    return {
      trackingNumber: data.number,
      toCarrierName: data.toCarrierName,
      toSiteName: data.toSiteName,
      toName: data.toName,
      toMobile: data.toMobile,
      toAddress: data.toAddress,
      toAddressDetail: data.toAddressDetail,
      fromCarrierName: data.fromCarrierName,
      fromSiteName: data.fromSiteName,
      fromName: data.fromName,
      fromMobile: data.fromMobile,
      fromAddress: data.fromAddress,
      fromAddressDetail: data.fromAddressDetail,
      weight: data.weight,
      payModeName: data.payModeName,
      freightPrice: data.freightPrice,
      insuredPrice: data.insuredPrice,
      collectionPrice: data.collectionPrice,
      sumPrice: data.sumPrice,
      goodsName: data.goodsName,
      remark: data.remark,
    };
  }
}