import * as Yup from "yup";
import colors from '../config/colors';
import moment from "moment";
import Screen from '../components/Screen';
import SearchablePicker from '../components/SearchablePicker';
import FormDatePicker from '../components/forms/FormDatePicker';
import defaultStyles from "../config/styles";
import constants from "../config/constants";
import ConfirmationModal from '../components/ConfirmationModal';
import React, { useContext, useEffect, useState } from 'react';
import { Modal, ScrollView, StyleSheet, Text, TouchableOpacity, View } from 'react-native';
import { Form, FormField, SubmitButton } from '../components/forms';
import { UpdateUserInfo, login, userPersonalData } from '../api/auth';
import { dimensions } from '../config/dimensions';
import { MaterialCommunityIcons } from "@expo/vector-icons";
import { useFormikContext } from 'formik';
import { states, statesToCities } from "../assets/cities_states";
import PasswordFormField from "../components/forms/PasswordFormField";
import storage from "../auth/storage";
import { AuthContext } from "../auth/context";
import { getInstitutions } from "../api/fetchInstutions";

//#region PICKERS

function InstitutionNamePicker({ name }) {
    const { values } = useFormikContext();
    const state = values["state"];
    const city = values["city"];
    const instType = values["institution"];
    const [items, setItems] = useState([]);
    const [institutions, setInstitutions] = useState([]);
  
    useEffect(() => {
      getInstitutions().then((data) => {
        setInstitutions(data);
      })
      .catch((error) => {
          console.error(error);
      });
    }, []);
  
    useEffect(() => {
      try {
        if (state && city && instType) {
          const insts = institutions[state] && institutions[state][city] && institutions[state][city][instType];
          insts ? setItems(insts) : setItems([]);
        }
      } catch (e) {
        console.log(e);
      }
    }, [state,city, instType, institutions]);
  
    return (
      <SearchablePicker
        name={name}
        items={items}
        setItems={setItems}
        formPlaceholder={"Selecione o nome da instituição"}
        doubleItemLine={true}
        nothingToShow={
          institutions?.state?.city?.instType
            ? "Não encontramos nada com esse termo"
            : (state && instType) || state || instType
              ? "Selecione uma cidade"
              :  state && instType && city ? `Nenhuma instituição do tipo ${constants.institutionMap[instType]} em ${city} (${constants.statesMap[state]})` : "Selecione o Estado, Cidade e o tipo da instituição primeiro"
        }
        searchPlaceholder={"Busca..."}
      />
    );
  }
  
function RolePicker({ name }) {
    const [items, setItems] = useState([
        { value: "ROLE_INSTITUTION", label: "Responsável" },
        { value: "ROLE_CLIENT", label: "Não responsável" },
    ]);

    return (
        <SearchablePicker
            name={name}
            items={items}
            setItems={setItems}
            formPlaceholder={"Selecione o vínculo institucional"}
            searchPlaceholder={"Busca..."}
        />
    );
}

function MaterialCommunityIconsCustom({
    name,
    color = colors.primary,
    size = 25,
}) {
    return (
        <View justifyContent={"center"} height={48}>
            <MaterialCommunityIcons name={name} size={size} color={color} />
        </View>
    );
}

function CityPicker({ name }) {
    const [items, setItems] = useState([]);
    const [isInitialRender, setIsInitialRender] = useState(true);

    const { values, setValues } = useFormikContext();

    const state = values["state"];

    useEffect(() => {
        if (isInitialRender) {
            state && setItems(statesToCities[state].cities);
            setIsInitialRender(false);
        } else {
            state && setItems(statesToCities[state].cities);
            setValues({ ...values, city: "" });
        }
    }, [state]);

    return (
        <SearchablePicker
            name={name}
            items={items}
            setItems={setItems}
            formPlaceholder={"Selecione a sua cidade"}
            nothingToShow={
                state
                    ? "Não encontramos nada com esse termo"
                    : "Selecione o Estado primeiro"
            }
            searchPlaceholder={"Busca..."}
        />
    );
}

function InstitutionPicker({ name }) {
    const [items, setItems] = useState([
        { value: "SCHOOL", label: "Escola" },
        { value: "CIVIL_DEFENSE", label: "Defesa civil" },
        { value: "NGO", label: "Não governamental" },
        { value: "OTHER", label: "Outra" },
        { value: "X", label: "Nenhuma" }
    ]);
    return (
        <SearchablePicker
            name={name}
            items={items}
            setItems={setItems}
            formPlaceholder={"Selecione o tipo da instituição"}
            searchPlaceholder={"Busca..."}
        />
    );
}

function GenderPicker({ name }) {
    const [items, setItems] = useState([
        { value: "F", label: "Feminino" },
        { value: "M", label: "Masculino" },
        { value: "N", label: "Prefiro não dizer" },
    ]);
    return (
        <SearchablePicker
            name={name}
            items={items}
            setItems={setItems}
            formPlaceholder={"Selecione o seu gênero"}
            searchPlaceholder={"Busca..."}
        />
    );
}

function StatePicker({ name }) {
    const [items, setItems] = useState(states);
    return (
        <SearchablePicker
            name={name}
            items={items}
            setItems={setItems}
            formPlaceholder={"Selecione o seu estado"}
            searchPlaceholder={"Busca..."}
        />
    );
}

function LocalDatePicker({ date, setDate, _moment }) {
    const formatDate = () => date.format("DD/MM/YYYY");

    return (
        <View flex={1}>
            <FormDatePicker
                onDateChange={(value) => setDate(value)}
                minimumDate={new Date(moment().subtract(110, "year"))}
                date={date}
            >
                <View style={{ flex: 1, paddingRight: 2, paddingLeft: 16 }}>
                    <View
                        style={{
                            ...defaultStyles.shadow,
                            height: 58,
                            paddingLeft: 12,
                            backgroundColor: colors.white,
                            borderColor: colors.grayBG,
                            borderWidth: 1,
                            padding: 5,
                            borderRadius: 6,
                            flexDirection: "row",
                            alignItems: "center",
                        }}
                    >
                        <Text
                            style={{
                                color: colors.medium,
                                fontSize: 18,
                            }}
                        >
                            {date != _moment
                                ? formatDate()
                                : "Selecione a data de nascimento"}
                        </Text>
                    </View>
                </View>
            </FormDatePicker>
        </View>
    );
}

//#endregion

export default function UpdateUserInfoScreen({ route, navigation }) {

    //#region STATES
    const _moment = moment();
    const [date, setDate] = useState(_moment);
    const [scroll, setScroll] = useState();
    const [showModal, setShowModal] = useState(false);
    const [showpasswordModal, setShowPasswordModal] = useState(false);
    const [formValue, setFormValue] = useState(null);
    const [modalMessage, setModalMessage] = useState("");
    const user = route.params.user;
    const title = route.params.title;
    const authContext = useContext(AuthContext);
    //#endregion

    useEffect(() => {
        setDate(moment(user.dateofborn));
    }, []);

    const defaultValue = {
        active: user.active,
        city: user.city,
        dateofborn: user.dateofborn,
        gender: user.gender,
        id: user.id,
        institution: user.institution,
        institutiontype: user.institutiontype,
        nickname: user.nickname,
        securityanswer: user.securityanswer,
        securityquestion: user.securityquestion,
        state: user.state,
        termsofusage: user.termsofusage,
    };

    const validationSchema = Yup.object().shape({
        name: Yup.string()
            .required("O nome é obrigatório")
            .matches(/[a-zA-Z]/, "O nome só pode conter letras"),
        state: Yup.string().required("O estado é obrigatório"),
        city: Yup.string().required("A cidade é obrigatória")
    });

    const passwordSchema = Yup.object().shape({
        password: Yup.string()
            .required("A senha é obrigatória")
            .min(8, "Senha muito curta, minimo 8 caracteres")
            .matches(/[a-zA-Z]/, "A senha só pode conter letras"),
    });

    const ItensList = ({ icon, IconProvider, title, onPress }) => {
        return (
            <View>
                <TouchableOpacity disabled={false} onPress={onPress}>
                    <View
                        style={{
                            marginVertical: 16,
                            flexDirection: "row",
                            alignItems: "center",
                        }}
                    >
                        <IconProvider name={icon} size={25} color={"#F23"} />
                        <Text
                            style={{
                                fontSize: 17,
                                marginLeft: 20,
                                textTransform: "uppercase",
                                fontWeight: "500",
                                color: "#F23"
                            }}
                        >
                            {title}
                        </Text>
                        <View
                            style={{
                                alignItems: "flex-end",
                                flex: 1,
                            }}
                        >
                            <MaterialCommunityIcons
                                name={"chevron-right"}
                                size={25}
                                color="#F56"
                            />
                        </View>
                    </View>
                </TouchableOpacity>
            </View>
        )
    };

    const ListComponent = ({ navigation }) => {

        const profileItems = [
            {
                icon: "lock",
                IconProvider: MaterialCommunityIcons,
                title: "alterar senha",
                onPress: () => {
                    navigation.navigate("PasswordRecovery", { user: user });
                },
            }
        ];

        return (
            <View>
                {profileItems.map(
                    ({ icon, IconProvider, title, onPress }) =>
                        <View key={title}>
                            <ItensList
                                icon={icon}
                                IconProvider={IconProvider}
                                title={title}
                                onPress={onPress}
                            />
                        </View>
                )}
            </View>
        )
    }

    const PasswordModal = ({ children, show, onClose }) => {
        return (
            <Modal
                visible={show}
                transparent={true}
                animationType="fade"
                onRequestClose={() => setShowModal(false)}
            >
                <View style={{
                    flex: 1,
                    justifyContent: "center",
                    alignItems: "center",
                    backgroundColor: "rgba(0, 0, 0, 0.5)",
                }}>
                    <View style={{
                        width: "90%",
                        justifyContent: "center",
                        alignItems: "center",
                        paddingVertical: 10,
                        paddingHorizontal: 10,
                        backgroundColor: colors.lightestGray,
                        borderColor: colors.primary,
                        borderWidth: 2,
                        borderRadius: 12,
                    }}>
                        <TouchableOpacity style={{ position: "absolute", top: 10, right: 10 }} onPress={onClose}>
                            <MaterialCommunityIcons name="close-circle" size={24} color={colors.primary} />
                        </TouchableOpacity>
                        {children}
                    </View>
                </View>
            </Modal>
        )
    }


    const handleUpdatUserInfo = async (password) => {

        const username = user.username;

        const parsedForm = {
            securityquestion: defaultValue.securityquestion,
            securityanswer: defaultValue.securityanswer,
            id: defaultValue.id,
            termsofusage: defaultValue.termsofusage,
            city: formValue.city,
            gender: formValue.gender,
            institution: formValue.institutionName,
            institutiontype: formValue.institution,
            nickname: formValue.name,
            active: defaultValue.active,
            dateofborn: date.format("YYYY-MM-DD"),
            state: formValue.state,
        };

        try {

            const apiResponse = await login(username, password);

            const authToken = apiResponse.data;

            const result = await UpdateUserInfo(authToken, defaultValue, parsedForm);

            if (result.status == 200) {

                storage.setToken(authToken)

                const getPersonalData = await userPersonalData()

                authContext.clearPluviometerStation()

                authContext.setUser(getPersonalData.data);

                setShowModal(true);
                setModalMessage("Informações atualizadas com sucesso");

            } else {
                setShowModal(true);
                setModalMessage("Algum erro inesperado ocorreu");
            }
        } catch (error) {
            console.error('Erro ao obter token de autenticação:', error);
            setShowModal(true);
            setModalMessage("Algum erro inesperado ocorreu");
        }

    };

    return (
        <Screen style={styles.container}>
            <ConfirmationModal
                show={showModal}
                description={modalMessage}
                confirmationLabel="OK"
                onConfirm={() => {
                    setShowModal(false),
                        navigation.goBack();
                }}
            />

            <PasswordModal show={showpasswordModal} onClose={() => setShowPasswordModal(false)}>
                <View style={{ width: "100%", height: 250, justifyContent: "space-evenly" }}>
                    <Form
                        initialValues={{ password: "" }}
                        validationSchema={passwordSchema}
                        onSubmit={({ password }) => {
                            handleUpdatUserInfo(password);
                            setShowPasswordModal(false);
                        }}>
                        <Text style={{
                            fontSize: dimensions.text.secondary,
                            fontWeight: "bold",
                            textAlign: "left",
                            color: colors.secondary,
                            paddingLeft: 15
                        }}>Senha*</Text>
                        <View style={{ paddingBottom: 24 }}>
                            <PasswordFormField
                                maxLength={20}
                                name="password"
                                placeholder="Senha"
                            />
                        </View>
                        <SubmitButton title={"CONFIRMAR"} flex={1} backgroundColor={colors.primary} />
                    </Form>
                </View>
            </PasswordModal>

            <Form
                initialValues={{
                    city: defaultValue.city,
                    gender: defaultValue.gender,
                    institutionName: defaultValue.institution,
                    institution: defaultValue.institutiontype,
                    name: defaultValue.nickname,
                    role: user.roles[0],
                    state: defaultValue.state,
                }}
                validationSchema={validationSchema}
                onSubmit={(form) => {
                    setFormValue(form);
                    setShowPasswordModal(true)
                }}
            >
                <ScrollView
                    scrollToOverflowEnabled={true}
                    ref={(ref) => {
                        setScroll(ref);
                    }}
                    style={{ paddingHorizontal: 20 }}
                >
                    <Text style={styles.title}>{title}</Text>
                    {/*--------------------------------------- NAME ---------------------------------------*/}
                    <Text style={styles.labelStyle}>Apelido de usuário*</Text>
                    <View style={styles.iconField}>
                        <MaterialCommunityIconsCustom name="account" />
                        <FormField
                            paddingRight={2}
                            flex={1}
                            maxLength={40}
                            name="name"
                            placeholder="Digite o apelido de usuário"
                            defaultValue={defaultValue.nickname}
                        />
                    </View>
                    {/*--------------------------------------- DATEOFBORN ---------------------------------------*/}
                    <Text style={styles.labelStyle}>Data de nascimento:</Text>
                    <View style={styles.iconField}>
                        <MaterialCommunityIconsCustom name="calendar-today" />
                        <LocalDatePicker
                            date={date}
                            setDate={setDate}
                            _moment={_moment}
                        />
                    </View>
                    {/*--------------------------------------- GENDER ---------------------------------------*/}
                    <Text style={styles.labelStyle}>Gênero:</Text>
                    <View style={[styles.iconField]}>
                        <MaterialCommunityIconsCustom name="account" />
                        <GenderPicker name="gender" />
                    </View>
                    {/*--------------------------------------- STATE ---------------------------------------*/}
                    <Text style={styles.labelStyle}>Estado*:</Text>
                    <View style={[styles.iconField]}>
                        <MaterialCommunityIconsCustom name="map-marker" />
                        <StatePicker name="state" />
                    </View>
                    {/*--------------------------------------- CITY ---------------------------------------*/}
                    <Text style={styles.labelStyle}>Cidade*:</Text>
                    <View style={[styles.iconField]}>
                        <MaterialCommunityIconsCustom name="map-marker" />
                        <CityPicker name={"city"} />
                    </View>
                    {/*--------------------------------------- INSTITUTION ---------------------------------------*/}
                    <Text style={styles.labelStyle}>Tipo de instituição:</Text>
                    <View style={[styles.iconField]}>
                        <MaterialCommunityIconsCustom name="bank" />
                        <InstitutionPicker name="institution" />
                    </View>
                    {/* --------------------------------------- INSTITUTIONNAME ---------------------------------------*/}
                    <View>
                        <Text style={styles.labelStyle}>Nome da instituição</Text>
                        <View style={{ flexDirection: "column", flex: 1 }}>
                            <View style={{ ...styles.iconField, marginBottom: 12 }}>
                                <MaterialCommunityIconsCustom name="bank" />
                                <InstitutionNamePicker name="institutionName" />
                            </View>
                            <Text style={styles.warningText}>
                                O nome da instituição é fornecido pelo Cemaden Educação
                            </Text>
                        </View>
                        {/* --------------------------------------- ROLE ---------------------------------------*/}
                        <Text style={styles.labelStyle}>Vínculo institucional:</Text>
                        <View style={[styles.iconField]}>
                            <MaterialCommunityIconsCustom name="bank" />
                            <RolePicker name="role" />
                        </View>
                    </View>

                    <ListComponent navigation={navigation} />

                    <SubmitButton
                        flex={1}
                        title="confirmar"
                        backgroundColor={colors.primary}
                    />
                </ScrollView>
            </Form>
        </Screen>
    );
}

const styles = StyleSheet.create({
    container: {
        justifyContent: "center",
        textAlign: "center",
    },
    iconField: {
        alignItems: "center",
        width: "100%",
        flex: 1,
        flexDirection: "row",
        marginTop: 12,
        marginBottom: 24,
    },
    title: {
        fontSize: 22,
        fontWeight: "bold",
        textAlign: "center",
        color: colors.black,
        marginVertical: 24
    },
    textSubtitle: {
        textAlign: "center",
        fontSize: dimensions.text.tertiary,
    },
    labelStyle: {
        fontSize: dimensions.text.secondary,
        fontWeight: "bold",
        textAlign: "left",
        color: colors.secondary,
    },
    warningText: {
        color: colors.primary,
        fontSize: dimensions.text.primary,
        textAlign: "left",
        marginBottom: 24,
    },
});