import React, { useEffect, useState } from "react";
import {
  StyleSheet,
  Text,
  View,
  TouchableOpacity,
  UIManager,
  Platform,
  Image,
  Alert,
  FlatList,
  ListRenderItem,
  ToastAndroid,
} from "react-native";
import AppView from "../../components/AppView";
import colors from "../../components/colors";
import { useDispatch, useSelector } from "react-redux";
import { useNavigation } from "@react-navigation/native";
import { PROFILE_URL } from "../../utils/ApiUrls";
import { setUserData } from "../../redux/userSlice";
import { TabNavigationProp } from "../../navigation/BottomTabs";
import UserProfileStatus from "./UserProfileStatus";
import AnimatedCard from "../../components/common/AnimatedCard";
import { Ionicons, IoniconsIconName } from "@react-native-vector-icons/ionicons";
import { apiCall } from "../../utils/ApiHelper";

if (Platform.OS === "android" && UIManager.setLayoutAnimationEnabledExperimental) {
  UIManager.setLayoutAnimationEnabledExperimental(true);
}

type UserProfile = {
  id: string;
  userId: number;
  firstName: string | null;
  lastName: string | null;
  imageBlob: string | null;
  role?: string;
};

interface ActionItem {
  id: string;
  title: string;
  action: string;
  tab?: "My Groups" | "Joined Groups" | "Requests" | "Your Requests";
  iconName?: IoniconsIconName;
  backOne?: string;
  backTwo?: string;
  subtitle?: string;
}

// Updated action items with a prettier pastel palette
const organizerActions: ActionItem[] = [
  { id: "1", title: "My Groups", subtitle: "Manage your groups", action: "NAVIGATE_MANAGEMENT", tab: "My Groups", iconName: "people-circle-outline", backOne: '#decbfcff', backTwo: '#B799FF' },
  { id: "2", title: "Joined Groups", subtitle: "View member groups", action: "NAVIGATE_MANAGEMENT", tab: "Joined Groups", iconName: "people-outline", backOne: '#D7E9F7', backTwo: '#82AAE3' },
  { id: "3", title: "Requests", subtitle: "Check new requests", action: "NAVIGATE_MANAGEMENT", tab: "Requests", iconName: "notifications-outline", backOne: '#DFF6DD', backTwo: '#88D18A' },
  { id: "4", title: "Create Group", subtitle: "Create a new group", action: "NAVIGATE_CREATE_GROUP", tab: "Requests", iconName: "people-outline", backOne: '#DFF6DD', backTwo: '#88D18A' },
];

const userActions: ActionItem[] = [
  { id: "1", title: "Joined Groups", subtitle: "See your groups", action: "NAVIGATE_MANAGEMENT", tab: "Joined Groups", iconName: "person-outline", backOne: '#D7E9F7', backTwo: '#82AAE3' },
  { id: "2", title: "Your Requests", subtitle: "Track your requests", action: "NAVIGATE_MANAGEMENT", tab: "Your Requests", iconName: "mail-open-outline", backOne: '#FFF4D2', backTwo: '#FFB344' },
  { id: "3", title: "Transactions", subtitle: "View your history", action: "TRANSACTION", iconName: "receipt-outline", backOne: '#decbfcff', backTwo: '#B799FF' },
  { id: "4", title: "Create Group", subtitle: "Create a new group", action: "NAVIGATE_CREATE_GROUP", tab: "Requests", iconName: "people-outline", backOne: '#DFF6DD', backTwo: '#88D18A' },
];

const Home: React.FC = () => {
  const user = useSelector((state: any) => state.user);
  const notifications = useSelector(
    (state: any) => state.notifications.notifications
  );
  const navigation = useNavigation<TabNavigationProp>();
  const dispatch = useDispatch();

  const actions = user.role === 'ORGANIZER' ? organizerActions : userActions;
  const [apiUser, setApiUser] = useState<UserProfile | null>(null);

  useEffect(() => {
    const fetchUserProfile = async () => {
      try {
        const result = await apiCall(PROFILE_URL, "GET") as any;
        if (result.status === "success") {
          setApiUser(result.data);
          dispatch(setUserData({ ...result.data, profileStatus: true }));
        }
      } catch (error) {
        console.error("❌ Error fetching profile:", error);
      }
    };
    const unsubscribe = navigation.addListener('focus', fetchUserProfile);
    fetchUserProfile();
    return unsubscribe;
  }, [navigation, dispatch]);

  const handleActionPress = (item: ActionItem) => {
    if (item.action === "NAVIGATE_MANAGEMENT" && item.tab) {
      navigation.navigate('Management', { actionTab: item.tab });
    } else if (item.action === "TRANSACTION") {
      navigation.navigate("TransactionList" as never);
    } else if (item.action === "NAVIGATE_CREATE_GROUP") {
      navigation.navigate("GroupCreation" as never);
    } else {
      ToastAndroid.show(`Unknown action: ${item.title}`, ToastAndroid.SHORT);
    }
  };

  const unreadCount = notifications.filter((item: any) => !item.read).length;

  const renderGridItem: ListRenderItem<ActionItem> = ({ item }) => (
    <View style={styles.cardWrapper}>
      <AnimatedCard
        key={item.id}
        title={item.title}
        subtitle={item.subtitle}
        iconName={item.iconName}
        backOne={item.backOne}
        backTwo={item.backTwo}
        onPress={() => handleActionPress(item)}
      />
    </View>
  );

  const getProfileImageUri = () => {
    const blob = user.imageBlob || apiUser?.imageBlob;
    return blob ? { uri: `data:image/jpeg;base64,${blob}` } : require('../../assets/images/placeholder.png');
  };

  return (
    <AppView barStyle="dark-content" style={styles.container}>
      <View style={styles.header}>
        <View>
          <Text style={styles.greeting}>Hello,</Text>
          <Text style={styles.userName}>{user.firstName || apiUser?.firstName || 'User'}</Text>
        </View>
        <TouchableOpacity onPress={() => navigation.navigate("Notification" as never)}>
          <Text style={{ position: 'absolute', right: -6, top: -4, backgroundColor: colors.danger, color: colors.white, borderRadius: 8, width: 16, height: 16, textAlign: 'center', fontSize: 10, fontWeight: 'bold', lineHeight: 16, zIndex: 1 }}>{unreadCount > 0 ? unreadCount : ''}</Text>
          <Ionicons name="notifications-outline" size={30} color={colors.textDark} />
        </TouchableOpacity>
      </View>

      <UserProfileStatus profileImage={getProfileImageUri()} />

      <Text style={styles.sectionTitle}>Quick Actions</Text>

      <FlatList
        data={actions}
        renderItem={renderGridItem}
        keyExtractor={(item) => item.id}
        numColumns={2}
        contentContainerStyle={{ paddingHorizontal: 8 }}
      />
    </AppView>
  );
};

export default Home;

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: colors.white, // Set background to white
  },
  header: {
    flexDirection: "row",
    justifyContent: "space-between",
    alignItems: "center",
    paddingHorizontal: 20,
    paddingTop: 24,
    paddingBottom: 16,
  },
  greeting: {
    fontSize: 22,
    color: colors.textDark,
  },
  userName: {
    fontSize: 28,
    fontWeight: 'bold',
    color: colors.textDark,
  },
  sectionTitle: {
    fontSize: 20,
    fontWeight: '600',
    color: colors.textDark,
    paddingHorizontal: 20,
    marginBottom: 8,
  },
  cardWrapper: {
    flex: 1,
    // marginHorizontal: 8,
    // backgroundColor:'red'
  },
});