import axios from 'axios';
import { Alert } from 'react-native';
import * as SecureStore from 'expo-secure-store';
import { forgetPasswordFormData } from '../types/signup';
import { CustomerData } from '../types/signUpFormData';
import * as FileSystem from 'expo-file-system';

class AuthenticationService {
    private apiUrl: string;

    constructor() {
        this.apiUrl = process.env.EXPO_PUBLIC_API_URL;
        if (!this.apiUrl) {
            throw new Error('API URL is not defined in environment variables');
        }
    }

    async emailLogin(username: string, password: string, isBinding?: boolean) {
        try {
            console.log('username in emailLogin auth service', username);
            console.log('password in emailLogin auth service', password);
            console.log('isBinding in emailLogin auth service', isBinding);
            const response = await axios.post(
                `${this.apiUrl}/public/client/customer/sign-in`,
                {
                    email: username,
                    password: password,
                    isBinding: isBinding
                },
                {
                    headers: {
                        'Content-Type': 'application/json',
                        Accept: 'application/json'
                    }
                }
            );
            if (response.status === 201) {
                const token = response.data.accessToken;
                await SecureStore.setItemAsync('accessToken', token);
                console.log('AccessToken', token);
                console.log('Login successful!');
                return true;
            } else {
                console.error('Login failed:', response.status);

                return false;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Login error:', error.response?.data?.message || error.message);
            } else {
                console.error('An unexpected error occurred:', error);
            }

            return false;
        }
    }

    async phoneLogin(username: string | null | undefined, password: string, isBinding?: boolean) {
        try {
            const response = await axios.post(
                // `${this.apiUrl}/public/client/customer/sign-in`,
                // `${this.apiUrl}/public/client/customer/sign-in`,
                `${this.apiUrl}/public/client/customer/phone/sign-in`,
                {
                    phone: username,
                    password: password,
                    isBinding: isBinding
                },
                {
                    headers: {
                        'Content-Type': 'application/json',
                        Accept: '*/*'
                    }
                }
            );
            if (response.status === 201) {
                const token = response.data.accessToken;
                await SecureStore.setItemAsync('accessToken', token);
                return 'login successful';
            } else {
                return response.data.message;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Login error:', error.response?.data?.message || error.message);
                return error.response?.data?.message || error.message;
            } else {
                console.error('An unexpected error occurred:', error);
                return 'An unexpected error occurred: ' + error;
            }
        }
    }

    async logout() {
        await SecureStore.deleteItemAsync('accessToken');
        console.log('log out successfully, accessToken deleted');
    }

    //BELOW CODES RELATE TO "SIGN UP"
    //BELOW CODES RELATE TO "SIGN UP"
    async sendOtpToSignUpEmail(email: string) {
        try {
            const response = await axios.post(
                `${this.apiUrl}/public/client/customer/otp`,
                { email: email },
                {
                    headers: {
                        'Content-Type': 'application/json',
                        Accept: 'application/json'
                    }
                }
            );
            if (response.status === 200 || response.status === 201) {
                return true;
            } else {
                console.error('Failed to send OTP:', response.status);
                return false;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error sending OTP:', error.response?.data?.message || error.message);
            } else {
                console.error('An unexpected error occurred while sending OTP:', error);
            }
            return false;
        }
    }

    async uploadUberImage(imageUri: string, customFileName: string) {
        try {
            const fileInfo = await FileSystem.getInfoAsync(imageUri);
            if (!fileInfo.exists) {
                throw new Error('File does not exist');
            }

            const fileExtension = imageUri.split('.').pop().toLowerCase();
            const allowedExtensions = ['jpg', 'jpeg', 'png'];

            if (!allowedExtensions.includes(fileExtension)) {
                throw new Error('只接受jpg,jpeg,png格式的圖片');
            }

            const formData = new FormData();

            const fileName = customFileName || imageUri.split('/').pop();

            formData.append('file', {
                uri: imageUri,
                name: fileName,
                type: `image/${fileExtension}`
            } as any);

            const accessToken = await SecureStore.getItemAsync('accessToken');
            const response = await axios.post(`${this.apiUrl}/clients/customer/image?type=uber`, formData, {
                headers: {
                    accept: '*/*',
                    'Content-Type': 'multipart/form-data',
                    Authorization: `Bearer ${accessToken}`
                }
            });
            console.log('Upload response:', response.data);
            return response.data;
        } catch (error) {
            console.error('Error uploading image:', error);
            throw error;
        }
    }

    async verifySignUpOtp(
        email: string,
        code: string,
        setScreen: React.Dispatch<React.SetStateAction<number>>,
        setError: React.Dispatch<React.SetStateAction<string>>
    ) {
        try {
            const response = await axios.put(
                `${this.apiUrl}/public/client/customer/otp`,
                { email, code },
                {
                    headers: {
                        'Content-Type': 'application/json',
                        Accept: 'application/json'
                    }
                }
            );

            if (response.status === 200) {
                console.log('OTP verified successfully');
                setScreen((currentScreenNumber: number) => currentScreenNumber + 1);
                return true;
            } else {
                console.error('OTP verification failed:', response.status);
                setError('OTP驗證碼錯誤');
                return false;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error verifying OTP:', error.response?.data?.message || error.message);
                setError('發生意外錯誤，請確保您輸入的電子郵件正確，並再次確認您的OTP驗證碼是否正確。');
            } else {
                console.error('An unexpected error occurred while verifying OTP:', error);
                setError('發生意外錯誤，請稍後再試');
            }
            return false;
        }
    }

    async signUp(data: CustomerData) {
        try {
            const response = await axios.post(`${this.apiUrl}/public/client/customer`, data, {
                headers: {
                    'Content-Type': 'application/json',
                    Accept: 'application/json'
                }
            });
            if (response.status === 200 || response.status === 201) {
                return true;
            } else {
                console.error('Signup failed:', response.status);
                return false;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error signing up:', error.response?.data?.message || error.message);
            } else {
                console.error('An unexpected error occurred while signing up:', error);
            }
            return false;
        }
    }

    //BELOW CODES RELATE TO "FORGET PASSWORD"
    //BELOW CODES RELATE TO "FORGET PASSWORD"
    async sendForgetPasswordOtp(email: string) {
        try {
            const response = await axios.post(
                `${this.apiUrl}/public/client/customer/pw/otp`,
                { email },
                {
                    headers: {
                        'Content-Type': 'application/json',
                        Accept: 'application/json'
                    }
                }
            );

            if (response.status === 200 || response.status === 201) {
                console.log('Forget password OTP sent successfully');
                return true;
            } else {
                console.error('Failed to send forget password OTP:', response.status);
                return false;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error sending forget password OTP:', error.response?.data?.message || error.message);
            } else {
                console.error('An unexpected error occurred while sending forget password OTP:', error);
            }
            return false;
        }
    }

    async getVersion() {
        try {
            const response = await axios.get(`${this.apiUrl}/public/client/app/version`);
            return response.data.data;
        } catch (error) {
            console.error('Error getting version:', error);
            return null;
        }
    }

    async verifyingOtpForgetPassword(
        email: string,
        otp: string,
        setForgetPasswordFormData: React.Dispatch<React.SetStateAction<forgetPasswordFormData>>,
        setData: React.Dispatch<React.SetStateAction<string>>
    ) {
        try {
            const res = await axios.put(`${this.apiUrl}/public/client/customer/pw/otp`, {
                email: email,
                code: otp
            });
            const data = res.data;
            setData(data.msg);
            console.log(data.msg);
            setForgetPasswordFormData((prevFormData) => ({
                ...prevFormData,
                otpAuthCompleted: true
            }));
            return true;
        } catch (error) {
            console.error('Error', error);
            return false;
        }
    }

    async changePassword(confirmedNewPassword: string, data: string) {
        try {
            const res = await axios.put(
                `${this.apiUrl}/clients/customer/pw/forget`,
                { newPassword: confirmedNewPassword },
                {
                    headers: {
                        Authorization: `Bearer ${data}`
                    }
                }
            );
            return true;
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error changing password:', error.response?.data?.message || error.message);
            } else {
                console.error('An unexpected error occurred:', error);
            }
        }
    }

    //BELOW CODES RELATE TO "changing account info (such as gender, name)"
    //BELOW CODES RELATE TO "changing account info (such as gender, name)"
    async changeName(name: string | null, token: string | null): Promise<boolean> {
        try {
            const res = await axios.put(
                `${this.apiUrl}/clients/customer`,
                { nickname: name },
                {
                    headers: {
                        Authorization: `Bearer ${token}`
                    }
                }
            );
            console.log('Change Name Successfully!');
            return true;
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error changing name:', error.response?.data?.message);
            } else {
                console.error('An unexpected error occurred:', error);
            }
            return false;
        }
    }
    async changeNotifySessionID(notifySessionID: string | null): Promise<boolean> {
        try {
            const res = await axios.put(
                `${this.apiUrl}/clients/customer`,
                { notify_session_id: notifySessionID },
                {
                    headers: {
                        Authorization: `Bearer ${await SecureStore.getItemAsync('accessToken')}`
                    }
                }
            );
            if (res.data.status == 200) {
                console.log('Change notifySessionID Successfully!');
                return true;
            } else {
                console.log('Change notifySessionID Failed!');
                return false;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error changing name:', error.response?.data?.message);
            } else {
                console.error('An unexpected error occurred:', error);
            }
            return false;
        }
    }

    async changePhone(phone: string | null, token: string | null): Promise<boolean> {
        try {
            const convertPhoneStringToNumber = Number(phone);
            const res = await axios.put(
                `${this.apiUrl}/clients/customer`,
                { phone: convertPhoneStringToNumber },
                {
                    headers: {
                        Authorization: `Bearer ${token}`
                    }
                }
            );
            return true;
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error changing phone:', error.response?.data?.message);
            } else {
                console.error('An unexpected error occurred:', error);
            }
            return false;
        }
    }

    async changeGender(gender: string | null, token: string | null): Promise<boolean> {
        try {
            const res = await axios.put(
                `${this.apiUrl}/clients/customer`,
                { gender: gender },
                {
                    headers: {
                        Authorization: `Bearer ${token}`
                    }
                }
            );
            console.log('Change gender Successfully!');
            return true;
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error changing gender:', error.response?.data?.message);
            } else {
                console.error('An unexpected error occurred:', error);
            }
            return false;
        }
    }
    async getUserInfo() {
        try {
            const response = await axios.get(`${this.apiUrl}/clients/customer`, {
                headers: {
                    Authorization: `Bearer ${await SecureStore.getItemAsync('accessToken')}`
                }
            });
            if (response.status === 200 || response.status === 201) {
                return response;
            } else {
                console.log('invalid response');
            }
        } catch (error) {
            console.log(error);
        }
    }
    async deleteAccount(): Promise<boolean> {
        try {
            const accessToken = await SecureStore.getItemAsync('accessToken');
            const response = await axios.delete(`${this.apiUrl}/clients/customer`, {
                headers: {
                    Authorization: `Bearer ${accessToken}`
                }
            });

            if (response.status === 200 || response.status === 201) {
                console.log('Account deleted successfully');

                return true;
            } else {
                console.error('Failed to delete account:', response.status);
                return false;
            }
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error deleting account:', error.response?.data?.message || error.message);
            } else {
                console.error('An unexpected error occurred while deleting account:', error);
            }
            return false;
        }
    }

    async checkPhoneSame(phoneNumber: string) {
        try {
            console.log('being checkPhoneSame');
            const response = await axios.post(
                `${this.apiUrl}/clients/customer/binding/sms`,
                {
                    phone: phoneNumber,
                    type: 3
                },
                {
                    headers: {
                        Authorization: `Bearer ${await SecureStore.getItemAsync('accessToken')}`
                    }
                }
            );
            const token = await SecureStore.getItemAsync('accessToken');
            console.log('accessToken', token);
            console.log('checkPhoneSame response', response.data);
            return response.data;
        } catch (error) {
            console.log(error);
        }
    }

    async confirmBindingPhone(phoneNumber: string, otp: string, notify_session_id: string) {
        try {
            const response = await axios.put(
                `${this.apiUrl}/public/client/customer/phone/otp`,
                {
                    phone: phoneNumber,
                    code: otp,
                    notify_session_id: notify_session_id,
                    type: 3
                },
                {
                    headers: {
                        'Content-Type': 'application/json',
                        Accept: 'application/json'
                    }
                }
            );
            console.log('confirmBindingPhone response', response.data);
            return response.data;
        } catch (error) {
            console.log(error);
        }
    }

    async verifyPhoneOtp(phoneNumber: string, otp: string, notify_session_id: string) {
        try {
            const response = await axios.put(
                `${this.apiUrl}/public/client/customer/phone/otp`,
                {
                    phone: phoneNumber,
                    code: otp,
                    notify_session_id: notify_session_id
                },
                {
                    headers: {
                        'Content-Type': 'application/json',
                        Accept: '*/*'
                    }
                }
            );
            console.log('verifyPhoneOtp response:', response.data);
            return response.data;
        } catch (error) {
            if (axios.isAxiosError(error)) {
                console.error('Error verifying phone OTP:', error.response?.data || error.message);
                throw error;
            } else {
                console.error('Unexpected error:', error);
                throw new Error('Failed to verify phone OTP');
            }
        }
    }
    async sendOtpToSignUpPhone(phone: string) {
        try {
            const response = await axios.post(`${this.apiUrl}/public/client/customer/phone/sms`, {
                phone: phone,
                type: 1
            });
            if (response.status === 200 || response.status === 201) {
                console.log('OTP sent successfully -- from api sendOtpToSignUpPhone, response:', response);
                return true;
            } else {
                console.error('Failed to send OTP -- from api sendOtpToSignUpPhone.. response:', response);
                return false;
            }
        } catch (error) {
            console.log(error);
        }
    }
}
export const authenticationService = new AuthenticationService();