import React, { useEffect, useState } from "react";
import { View, Text, TouchableOpacity, StyleSheet } from "react-native";
import MaterialIcons from "@expo/vector-icons/MaterialIcons";
import Ionicons from "@expo/vector-icons/Ionicons";
import LoginSVG from "@assets/images/login.svg";
import GoogleSVG from "@assets/images/google.svg";
import FacebookSVG from "@assets/images/facebook.svg";
import TwitterSVG from "@assets/images/twitter.svg";
import CustomButton from "@components/Buttons/CustomButton";
import InputField from "@components/InputField";
import { globalStyles } from "@styles/global";
import Loader from "@components/Loader";
import { Formik } from "formik";
import { loginSchema } from "@schemas/loginSchema";
import { useDispatch } from "react-redux";
import useAuthHook from "../hooks/useAuthHook";
import Layout from "@components/Layout/Layout";
import { useTheme } from "@styles";
import { useTranslation } from "react-i18next";
import { useLoginMutation } from "@features/auth/authApiSlice";
import { setCredentials } from "@features/auth/authSlice";
import { useAuthProviderMutation } from "@features/auth/authApiSlice";
import { storeData } from "@service/asyncStorage";
import { ACCESS_TOKEN } from "@constants/localStorage";

const LoginScreen = ({ navigation }) => {
  const [authProvider, { isLoading: isLoadingProvider }] =
    useAuthProviderMutation();
  const [currentProvider, setCurrentProvider] = useState("");
  const { colors } = useTheme();
  const { t } = useTranslation();
  const [login, { isLoading, error }] = useLoginMutation();
  const { response, promptAsync } = useAuthHook();
  const dispatch = useDispatch();

  const authProviderHandler = async (response) => {
    if (response?.type === "success") {
      const accessToken = response.authentication.accessToken;
      if (accessToken) {
        await storeData(ACCESS_TOKEN, accessToken)
        try {
          const userResponse = await authProvider({
            provider: currentProvider,
            accessToken,
          }).unwrap();
          if (userResponse) {
            dispatch(setCredentials(userResponse));
          }
        } catch (e) {
          console.log(e);
        }
      }
    }
  };

  useEffect(() => {
    authProviderHandler(response);
  }, [response, currentProvider]);

  const handleGoogleAuth = () => {
    promptAsync();
  };

  const handleLogin = async (values) => {
    const { email: identifier, password } = values;

    try {
      const userData = await login({ identifier, password }).unwrap();
      dispatch(setCredentials(userData));
    } catch (e) {
      console.log("Login error", e);
    }
  };

  return (
    <Layout>
      <Loader visible={isLoading || isLoadingProvider} />
      <View style={{ paddingHorizontal: 25 }}>
        <View style={{ alignItems: "center" }}>
          <LoginSVG height={300} width={300} />
        </View>
        <Formik
          initialValues={{
            email: "",
            password: "",
          }}
          validationSchema={loginSchema}
          onSubmit={handleLogin}
          validateOnChange={false}
          validateOnBlur={false}
        >
          {({
            handleChange,
            handleBlur,
            handleSubmit,
            values,
            isValid,
            errors,
          }) => (
            <>
              <Text
                style={[globalStyles.boldText, { color: colors.textPrimary }]}
              >
                {t("login.signIn")}
              </Text>
              <InputField
                name="email"
                label={t("login.email")}
                keyboardType="email-address"
                onChangeText={handleChange("email")}
                text={values.email}
                style={{ color: colors.textPrimary }}
                handleBlur={handleBlur("email")}
                icon={
                  <MaterialIcons
                    name="alternate-email"
                    size={20}
                    color="#666"
                    style={{ marginRight: 5 }}
                  />
                }
              />
              {errors.email && (
                <Text style={styles.errorMessage}>{errors.email}</Text>
              )}
              <InputField
                name="password"
                label={t("login.password")}
                filedButtonLabel={t("register.forgot")}
                fieldButtonFunction={() => {}}
                inputType="password"
                handleBlur={handleBlur("password")}
                text={values.password}
                onChangeText={handleChange("password")}
                icon={
                  <Ionicons
                    name="ios-lock-closed-outline"
                    size={20}
                    color="#666"
                    style={{ marginRight: 5 }}
                  />
                }
              />
              {errors.password && (
                <Text style={styles.errorMessage}>{errors.password}</Text>
              )}
              {error && (
                <Text style={styles.errorMessage}>
                  {error?.data?.error?.message}
                </Text>
              )}
              <CustomButton label={t("login.login")} onPress={handleSubmit} />
            </>
          )}
        </Formik>
        <Text
          style={[
            globalStyles.regularCenteredText,
            { color: colors.textPrimary },
          ]}
        >
          {t("login.orLoginWith")}
        </Text>
        <View style={styles.providersContainer}>
          <TouchableOpacity
            onPress={() => {
              setCurrentProvider("google");
              handleGoogleAuth();
            }}
            style={globalStyles.iconButton}
          >
            <GoogleSVG height={24} width={24} />
          </TouchableOpacity>
          <TouchableOpacity onPress={() => {}} style={globalStyles.iconButton}>
            <FacebookSVG height={24} width={24} />
          </TouchableOpacity>
          <TouchableOpacity onPress={() => {}} style={globalStyles.iconButton}>
            <TwitterSVG height={24} width={24} />
          </TouchableOpacity>
        </View>
        <View style={styles.registerContainer}>
          <Text
            style={[globalStyles.regularText, { color: colors.textPrimary }]}
          >
            {t("login.needAccount")}{" "}
          </Text>
          <TouchableOpacity onPress={() => navigation.navigate("Register")}>
            <Text style={styles.registerButtonText}>{t("login.signUp")}</Text>
          </TouchableOpacity>
        </View>
      </View>
    </Layout>
  );
};

const styles = StyleSheet.create({
  providerText: {
    textAlign: "center",
    color: "#666",
    marginBottom: 30,
    fontFamily: "poppins-regular",
  },
  providersContainer: {
    flexDirection: "row",
    justifyContent: "space-between",
    marginBottom: 30,
  },
  registerContainer: {
    flexDirection: "row",
    justifyContent: "center",
    marginBottom: 30,
  },
  registerButtonText: {
    color: "#AD40AF",
    fontWeight: "700",
    fontFamily: "poppins-semibold",
  },
  errorMessage: {
    marginBottom: 30,
    color: "red",
  },
});

export default LoginScreen;