import Handers from '@/assets/icons/svg/handers.svg';
import ForgetPwd from '@/components/login/forgetPwd';
import Login from '@/components/login/login';
import PhoneLogin from '@/components/login/phoneLogin';
import SignUp from '@/components/login/signUp';
import PrivacyModal from '@/components/owner/qualification/privacy';
import { ThemedText } from '@/components/ThemedText';
import { ThemedView } from '@/components/ThemedView';
import { useLocalSearchParams, useRouter } from 'expo-router';
import React, { useEffect, useState } from 'react';
import { useTranslation } from 'react-i18next';
import { Image, Keyboard, KeyboardAvoidingView, LayoutChangeEvent, Platform, ScrollView, StatusBar, TouchableOpacity, View, ViewStyle, useWindowDimensions } from 'react-native';
import { useSafeAreaInsets } from 'react-native-safe-area-context';

const LoginScreen = () => {
    const router = useRouter();
    const { t } = useTranslation();
    const { status } = useLocalSearchParams();
    const [error, setError] = useState<string>('123');
    const [containerHeight, setContainerHeight] = useState(0);
    const { height: windowHeight } = useWindowDimensions();
    // 展示首次输入密码
    const [showPassword, setShowPassword] = useState(false);
    // 展示二次输入密码
    const [showSecondPassword, setShowSecondPassword] = useState(false);
    const [keyboardOffset, setKeyboardOffset] = useState(0);
    const insets = useSafeAreaInsets();
    // 判断是否有白边
    const statusBarHeight = StatusBar?.currentHeight ?? 0;

    // 协议弹窗
    const [modalVisible, setModalVisible] = useState(false);
    const [modalType, setModalType] = useState<'ai' | 'terms' | 'privacy' | 'user' | 'membership'>('privacy');
    useEffect(() => {
        const keyboardWillShowListener = Keyboard.addListener(
            Platform.OS === 'ios' ? 'keyboardWillShow' : 'keyboardDidShow',
            (e) => {
                setKeyboardOffset(e.endCoordinates.height);
            }
        );
        const keyboardWillHideListener = Keyboard.addListener(
            Platform.OS === 'ios' ? 'keyboardWillHide' : 'keyboardDidHide',
            () => {
                setKeyboardOffset(0);
            }
        );

        return () => {
            keyboardWillShowListener.remove();
            keyboardWillHideListener.remove();
        };
    }, []);

    const handleLayout = (event: LayoutChangeEvent) => {
        const { height } = event.nativeEvent.layout;
        setContainerHeight(height);
    };

    const updateUrlParam = (key: string, value: string) => {
        setError('');
        router.setParams({ [key]: value });
    }

    return (
        <KeyboardAvoidingView
            style={{ flex: 1 }}
            behavior={Platform.OS === "ios" ? "padding" : "height"}
            keyboardVerticalOffset={Platform.OS === 'ios' ? 0 : -statusBarHeight}
        >
            <ScrollView
                contentContainerStyle={{
                    flexGrow: 1
                }}
                keyboardShouldPersistTaps="handled"
                bounces={false}
            >
                <ThemedView className="flex-1 justify-end" bgColor="bgPrimary">
                    <View style={{ width: "100%", alignItems: "center", marginTop: insets.top + 8, opacity: keyboardOffset === 0 ? 1 : 0 }}>
                        <ThemedText size="xl" weight="bold" color="textWhite">{t('login:auth.login.titleText')}</ThemedText>
                    </View>
                    <View className="flex-1">
                        <View
                            className="absolute left-1/2 z-10"
                            style={{
                                top: containerHeight > 0 ? windowHeight - containerHeight - 210 + statusBarHeight - insets.top - 28 : 0,
                                transform: [{ translateX: -200 }, { translateY: keyboardOffset > 0 ? -keyboardOffset + statusBarHeight : -keyboardOffset }]
                            }}
                        >
                            {
                                (showPassword || showSecondPassword)
                                    ?
                                    <Image source={require('@/assets/images/png/icon/ipNoHandsEyes.png')} />
                                    :
                                    <Image source={require('@/assets/images/png/icon/ipNoHands.png')} />
                            }
                        </View>
                        <View
                            className="absolute left-1/2 z-[1000] -translate-x-[39.5px] -translate-y-[4px]"
                            style={{
                                top: containerHeight > 0 ? windowHeight - containerHeight - 1 + statusBarHeight - insets.top - 30 : 0,
                                transform: [{ translateX: -39.5 }, { translateY: keyboardOffset > 0 ? -4 - keyboardOffset + statusBarHeight : -4 - keyboardOffset }]
                            }}
                        >
                            <Handers />
                        </View>
                    </View>
                    <ThemedView
                        className="w-full pt-4 px-6 relative z-20 shadow-lg pb-5"
                        bgColor="textWhite"
                        style={{
                            borderTopLeftRadius: 50,
                            borderTopRightRadius: 50,
                            shadowColor: '#000',
                            shadowOffset: { width: 0, height: 2 },
                            shadowOpacity: 0.1,
                            shadowRadius: 8,
                            elevation: 5,
                            paddingBottom: insets.bottom
                        } as ViewStyle}
                        onLayout={handleLayout}
                    >
                        {/* 错误提示 */}
                        <View className={`${error !== "123" ? 'opacity-100' : 'opacity-0'} w-full flex justify-center items-center text-primary-500 text-sm`}>
                            <ThemedText size='xxs' color='bgSecondary' type='inter'>
                                {error}
                            </ThemedText>
                        </View>
                        {(() => {
                            const commonProps = {
                                updateUrlParam,
                                setError,
                            };

                            const components = {
                                signUp: (
                                    <SignUp
                                        {...commonProps}
                                        setShowPassword={setShowPassword}
                                        showPassword={showPassword}
                                        setShowSecondPassword={setShowSecondPassword}
                                        showSecondPassword={showSecondPassword}
                                    />
                                ),
                                forgetPwd: (
                                    <ForgetPwd
                                        {...commonProps}
                                    />
                                ),
                                login: (
                                    <Login
                                        {...commonProps}
                                        setShowPassword={setShowPassword}
                                        showPassword={showPassword}
                                    />
                                    // <PhoneLogin  {...commonProps} />
                                ),
                                code: (
                                    <PhoneLogin  {...commonProps} />
                                )
                            };

                            return components[status as keyof typeof components] || components.login;
                        })()}

                        <View style={{ width: "100%", alignItems: "center", }}>
                            {status == 'login' || !status &&
                                <View className="flex-row justify-center mt-2 flex-wrap w-[85%] items-center">
                                    <ThemedText color='bgPrimary' size='xxs' type='inter'>
                                        {status === 'login' || !status ? t('auth.agree.logintext', { ns: 'login' }) : t('auth.agree.singupText', { ns: 'login' })}
                                    </ThemedText>
                                    <TouchableOpacity onPress={() => { setModalVisible(true); setModalType('terms') }}>
                                        <ThemedText color='bgPrimary' size='xxs' type='inter' style={{ textDecorationLine: 'underline' }}>
                                            {t('auth.agree.terms', { ns: 'login' })}
                                        </ThemedText>
                                    </TouchableOpacity>
                                    <ThemedText color='bgPrimary' size='xxs' type='inter' className='flex-wrap'>
                                        {t('auth.agree.join', { ns: 'login' })}
                                    </ThemedText>
                                    <TouchableOpacity onPress={() => { setModalVisible(true); setModalType('privacy') }}>
                                        <ThemedText color='bgPrimary' size='xxs' type='inter' className='flex-wrap' style={{ textDecorationLine: 'underline' }}>
                                            {t('auth.agree.privacyPolicy', { ns: 'login' })}
                                        </ThemedText>
                                    </TouchableOpacity>
                                </View>
                            }
                        </View>
                        <PrivacyModal modalVisible={modalVisible} setModalVisible={setModalVisible} type={modalType} />
                    </ThemedView>
                </ThemedView>
            </ScrollView>
        </KeyboardAvoidingView>
    );
}

export default LoginScreen