import 'dart:io';

import 'package:dating_touchme_app/model/mine/bank_card_ocr_data.dart';
import 'package:dating_touchme_app/network/user_api.dart';
import 'package:dating_touchme_app/oss/oss_manager.dart';
import 'package:flustars/flustars.dart';
import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:get/get.dart';
import 'package:get/get_state_manager/src/simple/get_controllers.dart';
import 'package:image_picker/image_picker.dart';
import 'package:permission_handler/permission_handler.dart';

class AddBankcardController extends GetxController {

  late UserApi _userApi;


  final username = ''.obs;
  final usernameController = TextEditingController().obs;

  final cardNum = ''.obs;
  final cardNumController = TextEditingController().obs;

  final bankName = ''.obs;
  final bankNameController = TextEditingController().obs;

  final openingBank = ''.obs;
  final openingBankController = TextEditingController().obs;

  @override
  void onInit() {
    super.onInit();
    _userApi = Get.find<UserApi>();
  }

  // 选择头像 - 业务逻辑处理
  Future<void> handleCameraCapture() async {
    try {
      // 请求相机权限
      final ok = await _ensurePermission(
        Permission.camera,
        denyToast: '相机权限被拒绝，请在设置中允许访问相机',
      );
      if (!ok) return;

      // 请求麦克风权限（部分设备拍照/录像会一并请求建议预授权）
      await _ensurePermission(Permission.microphone, denyToast: '麦克风权限被拒绝');

      // 权限通过后拍照
      final ImagePicker picker = ImagePicker();
      final XFile? photo = await picker.pickImage(source: ImageSource.camera);

      if (photo != null) {
        await processSelectedImage(File(photo.path));
      }
    } catch (e) {
      print('拍照失败: $e');
      // 更友好的错误提示
      if (e.toString().contains('permission') || e.toString().contains('权限')) {
        SmartDialog.showToast('相机权限被拒绝，请在设置中允许访问相机');
      } else if (e.toString().contains('camera') ||
          e.toString().contains('相机')) {
        SmartDialog.showToast('设备没有可用的相机');
      } else {
        SmartDialog.showToast('拍照失败，请重试');
      }
    }
  }

  Future<void> handleGallerySelection() async {
    try {
      // 请求相册/照片权限
      // final ok = await _ensurePermission(
      //   Permission.photos,
      //   // Android 上 photos 等价于 storage/mediaLibrary，permission_handler 会映射
      //   denyToast: '相册权限被拒绝，请在设置中允许访问相册',

      // );
      // if (!ok) return;

      // 从相册选择图片
      final ImagePicker picker = ImagePicker();
      final XFile? image = await picker.pickImage(source: ImageSource.gallery);

      if (image != null) {
        await processSelectedImage(File(image.path));
      }
    } catch (e) {
      print('选择图片失败: $e');
      // 更友好的错误提示
      if (e.toString().contains('permission') || e.toString().contains('权限')) {
        SmartDialog.showToast('相册权限被拒绝，请在设置中允许访问相册');
      } else {
        SmartDialog.showToast('选择图片失败，请重试');
      }
    }
  }

  // 通用权限申请
  Future<bool> _ensurePermission(Permission permission, {String? denyToast}) async {
    var status = await permission.status;
    if (status.isGranted) return true;

    if (status.isDenied || status.isRestricted || status.isLimited) {
      status = await permission.request();
      if (status.isGranted) return true;
      if (denyToast != null) SmartDialog.showToast(denyToast);
      return false;
    }

    if (status.isPermanentlyDenied) {
      if (denyToast != null) SmartDialog.showToast('$denyToast，前往系统设置开启');
      // 延迟弹设置，避免与弹窗冲突
      Future.delayed(const Duration(milliseconds: 300), openAppSettings);
      return false;
    }
    return false;
  }


  // 处理选中的图片
  Future<void> processSelectedImage(File imageFile) async {
    try {
      // 显示加载提示
      SmartDialog.showLoading(msg: '识别银行卡中...');
      String objectName = '${DateUtil.getNowDateMs()}.${imageFile.path.split('.').last}';
      String imageUrl = await OSSManager.instance.uploadFile(imageFile.readAsBytesSync(), objectName);
      print('上传成功，图片URL: $imageUrl');
      ocrBankCard(imageUrl);
      // SmartDialog.dismiss();
      // SmartDialog.showToast('银行卡上传成功');
    } catch (e) {
      SmartDialog.dismiss();
      print('处理图片失败: $e');
      SmartDialog.showToast('银行卡上传失败，请重试');
    }
  }

  ocrBankCard(String url) async {
    try {
      final response = await _userApi.recognizeBankCard({
        "url":url
      });
      if (response.data.isSuccess) {

        final BankCardOcrData data = response.data.data ?? BankCardOcrData();
        bankName.value = data.bankName ?? "";
        bankNameController.value.value = TextEditingValue(
          text: bankName.value,
          selection: TextSelection.fromPosition(TextPosition(offset: bankName.value.length)),
        );
        cardNum.value = data.cardNum ?? "";
        cardNumController.value.value = TextEditingValue(
          text: cardNum.value,
          selection: TextSelection.fromPosition(TextPosition(offset: cardNum.value.length)),
        );
        SmartDialog.dismiss();
        SmartDialog.showToast('银行卡识别成功');
      }
      else{

        SmartDialog.showToast(response.data.message);

        return;
      }
    } catch (e){
      print('银行卡识别失败: $e');
      SmartDialog.showToast('银行卡识别失败，请重试');
      return;
    }
  }

  saveCard() async {

    if(username.value == ""){
      SmartDialog.showToast('请输入持卡人姓名');
      return;
    }
    if(cardNum.value == ""){
      SmartDialog.showToast('请输入卡号');
      return;
    }
    if(bankName.value == ""){
      SmartDialog.showToast('请输入所属银行');
      return;
    }
    if(openingBank.value == ""){
      SmartDialog.showToast('请输入开户行');
      return;
    }

    final payload = {
      "ownerName": username.value,
      "cardNum": cardNum.value,
      "bankName": bankName.value,
      "openingBank": openingBank.value,
    };

    try {
      final response = await _userApi.createBankCardByIndividual(payload);
      if (response.data.isSuccess) {

        SmartDialog.showToast('保存成功');
        Get.back();
      }
      else{

        SmartDialog.showToast(response.data.message);

        return;
      }
    } catch (e){
      print('保存失败: $e');
      SmartDialog.showToast('保存失败，请重试');
      return;
    }
  }

}