import {
  FlutterPlugin,
  FlutterPluginBinding,
  MethodCall,
  MethodCallHandler,
  MethodChannel,
  MethodResult,
} from '@ohos/flutter_ohos';


import { contact } from '@kit.ContactsKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { ArrayList } from '@kit.ArkTS';

/** ContantsSelectPlugin **/
export default class ContantsSelectPlugin implements FlutterPlugin, MethodCallHandler {
  private channel: MethodChannel | null = null;

  constructor() {
  }

  getUniqueClassName(): string {
    return "ContantsSelectPlugin"
  }

  onAttachedToEngine(binding: FlutterPluginBinding): void {
    this.channel = new MethodChannel(binding.getBinaryMessenger(), "contants_select");
    this.channel.setMethodCallHandler(this)
  }

  onDetachedFromEngine(binding: FlutterPluginBinding): void {
    if (this.channel != null) {
      this.channel.setMethodCallHandler(null)
    }
  }

  onMethodCall(call: MethodCall, result: MethodResult): void {
    if (call.method == "getPlatformVersion") {
      result.success("OpenHarmony ^ ^ ")
    }else if (call.method == "getContact") {
      const  isMultiSelect= call.argument("isMultiSelect") as boolean || false
      contact.selectContacts({
        isMultiSelect:isMultiSelect
      },(err: BusinessError, data) => {
        if (err) {
          console.error(`selectContact callback: err->${JSON.stringify(err)}`);
          result.error(err.code.toString(),err.message,err.data)
        }
        console.log(`selectContact callback: success data->${JSON.stringify(data)}`);
        if (data && data.length > 0) {
          // // 创建联系人结果映射
          let tempContacts: ArrayList<  Record<string, Object> >= new ArrayList();
          data.forEach((contact:contact.Contact) => {
            const contactInfo = new Map<string, string | string[]>();
            contactInfo.set("fullName", contact.name?.fullName || "");
            const phoneNumbers: string[] = contact.phoneNumbers?.map(item => item.phoneNumber) || [];
            contactInfo.set("phoneNumbers", phoneNumbers);
            if (contact.emails && contact.emails.length > 0) {
              const emails: string[] = contact.emails.map(item => item.email);
              contactInfo.set("emails", emails);
            }
            let jsonObject: Record<string, Object> = {};
            contactInfo.forEach((value, key) => {
              if (key !== undefined && value !== undefined) {
                jsonObject[key] = value;
              }
            })
            tempContacts.add(jsonObject);
          });
          console.info(`Succeeded in selecting Contacts. data->${JSON.stringify( tempContacts)}`);
          result.success( tempContacts)
        }else{
          //没有选择
          result.success([])
        }
      });
    }  else {
      result.notImplemented()
    }
  }
}