import base64 from 'react-native-base64';
import DeviceInfo from 'react-native-device-info';
import { NativeModules } from 'react-native';

// TypeScript에서 NativeModules.Aes를 사용하려면 해당 모듈에 대한 타입을 선언해야 합니다.
declare module 'react-native' {
  interface NativeModulesStatic {
    Aes: {
      encrypt: (data: string, key: string, iv: string) => Promise<string>;
      hmac256: (data: string, key: string) => Promise<string>;
    };
  }
}

// getRandomKey 함수의 반환 타입을 명시
const getRandomKey = (length: number): string => {
  var text = '';
  var keys = 'abcdefghijklmnopqrstuvwxyz1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ';

  for (var i = 0; i < length; i++)
    text += keys.charAt(Math.floor(Math.random() * keys.length));

  return text;
};

// getSessionKey 함수의 반환 타입을 명시
const getSessionKey = async (key: string, iv: string): Promise<string> => {
  const keyValue = base64.encode(key);
  const ivValue = base64.encode(iv);

  return `${keyValue}##${ivValue}`;
};

// stringToHex 함수의 반환 타입을 명시
const stringToHex = (str: string): string => {
  var hex = '';
  for (var i = 0, l = str.length; i < l; i++) {
    hex += str.charCodeAt(i).toString(16);
  }
  return hex;
};

// userTrace 함수의 반환 타입을 명시
const userTrace = async (
  applicationId: string,
  userId: string,
  phone: string,
  email: string,
  gender: string,
  birth: string,
  area: string
): Promise<any> => {
  try {
    const payload = {
      id: userId,
      ver: DeviceInfo.getVersion(),
      application_id: applicationId,
      phone: phone,
      email: email,
      gender: gender,
      birth: birth,
      area: area,
    };

    const key = getRandomKey(32);
    const iv = getRandomKey(16);

    try {
      const data = await NativeModules.Aes.encrypt(
        JSON.stringify(payload),
        stringToHex(key),
        stringToHex(iv)
      );

      const response = await fetch('https://analytics.bootpay.co.kr/login', {
        method: 'POST',
        headers: {
          'Accept': 'application/json',
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({
          data: data,
          session_key: await getSessionKey(key, iv),
        }),
      });

      const json = await response.json();
      return json;
    } catch (e) {
      console.log(e);
      throw e;
    }
  } catch (error) {
    console.error(error);
    throw error;
  }
};

// const userTrace = async (applicationId: string, userId: string, phone: string, email: string, gender: string, birth: string, area: string): Promise<any> => {
//   try {
//     const payload = {
//       id: userId,
//       ver: DeviceInfo.getVersion(),
//       application_id: applicationId,
//       phone: phone,
//       email: email,
//       gender: gender,
//       birth: birth,
//       area: area,
//     };

//     var key = getRandomKey(32);
//     var iv = getRandomKey(16);

//     try {
//       const data = await NativeModules.Aes.encrypt(JSON.stringify(payload), stringToHex(key), stringToHex(iv));
//       const response = await fetch(
//         'https://analytics.bootpay.co.kr/login',
//         {
//           method: 'POST',
//           headers: {
//             Accept: 'application/json',
//             'Content-Type': 'application/json'
//           },
//           body: JSON.stringify({
//             data: data,
//             session_key: await getSessionKey(key, iv)
//           })
//         }
//       );
//       const json = await response.json();
//       return json;
//     } catch (e) {
//       console.log(e);
//     }
//   } catch (error) {
//     console.error(error);
//   }
// };

// pageTrace 함수의 반환 타입을 명시
const pageTrace = async (
  applicationId: string,
  url: string,
  pageType: string,
  items: any
): Promise<any> => {
  try {
    const payload = {
      application_id: applicationId,
      url: url,
      page_type: pageType,
      items: items,
      referer: '',
    };

    const key = getRandomKey(32);
    const iv = getRandomKey(16);

    try {
      const data = await NativeModules.Aes.encrypt(
        JSON.stringify(payload),
        stringToHex(key),
        stringToHex(iv)
      );

      const response = await fetch('https://analytics.bootpay.co.kr/call', {
        method: 'POST',
        headers: {
          'Accept': 'application/json',
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({
          data: data,
          session_key: await getSessionKey(key, iv),
        }),
      });

      const json = await response.json();
      return json;
    } catch (e) {
      console.log(e);
      throw e;
    }
  } catch (error) {
    console.error(error);
    throw error;
  }
};

// const pageTrace = async (applicationId: string, url: string, pageType: string, items: any): Promise<any> => {
//   try {
//     const payload = {
//       "application_id": applicationId,
//       "url": url,
//       "page_type": pageType,
//       "items": items,
//       "referer": '',
//     };

//     var key = getRandomKey(32);
//     var iv = getRandomKey(16);

//     try {
//       const data = await NativeModules.Aes.encrypt(JSON.stringify(payload), stringToHex(key), stringToHex(iv));
//       const response = await fetch(
//         'https://analytics.bootpay.co.kr/call',
//         {
//           method: 'POST',
//           headers: {
//             Accept: 'application/json',
//             'Content-Type': 'application/json'
//           },
//           body: JSON.stringify({
//             data: data,
//             session_key: await getSessionKey(key, iv)
//           })
//         }
//       );
//       const json = await response.json();
//       return json;
//     } catch (e) {
//       console.log(e);
//     }
//   } catch (error) {
//     console.error(error);
//   }
// };

// strEncode 함수의 반환 타입을 명시
// const strEncode = async (str: string, key: string, iv: string): Promise<string> => {
//   return await NativeModules.Aes.encrypt(str, key, iv).then(cipher => {
//     return NativeModules.Aes.hmac256(cipher, key).then(hash => {
//       console.log('HMAC', hash);
//       return hash;
//     });
//   });
// };

export { userTrace, pageTrace };