import {
  StyleSheet,
  ScrollView,
  SafeAreaView,
  StatusBar,
  Image,
  TouchableOpacity,
  View,
} from 'react-native';

import React, {useState, useEffect, useRef} from 'react';
import {router} from 'expo-router';
import type {AutocompleteDropdownRef} from 'react-native-autocomplete-dropdown'
import {AutocompleteDropdown} from 'react-native-autocomplete-dropdown';
import Modal from "react-native-modal";
import AsyncStorage from '@react-native-async-storage/async-storage';

import {ThemedText} from '@/components/ThemedText';
import {ThemedView} from '@/components/ThemedView';
import {Colors} from '@/constants/Colors';
import {useColorScheme} from '@/hooks/useColorScheme';
import {Request} from '@/services/request';
import List from '@/components/List';

export default function ExploreScreen() {
  const colorScheme = useColorScheme() ?? 'light';
  const [categories, setCategories] = useState([]);
  const [types, setTypes] = useState([]);
  const [activeCategory, setActiveCategory] = useState<any | null>(null);
  const searchRef = useRef(null);
  const dropdownController = useRef<AutocompleteDropdownRef | null>(null)

  useEffect(() => {
    // Load categories
    Request.get('categories').then((response) => {
      const list: any = [];

      response.forEach((category: any, index: any) => {
        list.push({
          id: index,
          title: category.name,
          category: category,
        })
      });

      setCategories(list);
    })

    // Load waste types
    Request.get('waste-types').then((response) => {
      setTypes(response);
    });
  }, []);

  // View selected item in modal
  const selectItem = (item: any | null) => {
    if (item == null) {
      return;
    }

    // Clear select
    dropdownController.current?.clear()

    const {category} = item;
    setActiveCategory(category);
  }

  // View item in sub screen
  const viewItem = async (item: any) => {
    await AsyncStorage.setItem('activeCategory', JSON.stringify(item));

    router.push('/explore/category');
  };

  return (
    <SafeAreaView style={{flex: 1, backgroundColor: Colors[colorScheme].background}}>
      <ThemedView>
        <ScrollView style={styles.container}>
          <ThemedView style={styles.titleContainer}>
            <ThemedText type="title">Wat moet waar?</ThemedText>
          </ThemedView>

          <ThemedView style={styles.titleContainer}>
            <ThemedText type="title" style={{color: Colors[colorScheme].tint}}>en waarom?</ThemedText>
          </ThemedView>

          <ThemedView style={styles.searchContainer}>
            <ThemedText type="defaultSemiBold">Wat wilt u scheiden?</ThemedText>
            <AutocompleteDropdown
              ref={searchRef}
              controller={controller => {
                dropdownController.current = controller
              }}
              textInputProps={{
                placeholder: 'Wat wilt u scheiden?',
                autoCorrect: false,
                autoCapitalize: 'none',
              }}
              clearOnFocus={false}
              closeOnBlur={false}
              closeOnSubmit={false}
              emptyResultText={'Niks gevonden'}
              onSelectItem={selectItem}
              dataSet={categories}
              showClear={false}
            />
          </ThemedView>

          <ThemedView style={styles.categoriesContainer}>
            <ThemedText type="defaultSemiBold">Of kies een categorie:</ThemedText>
          </ThemedView>

          <ThemedView style={styles.listContainer}>
            <List
              data={types}
              renderItem={(item: any, index: any) => (
                <TouchableOpacity style={styles.listItem} key={index} onPress={() => viewItem(item)}>
                  <Image source={{uri: item.image}} style={styles.listImage}/>
                  <ThemedText type="default">{item.name}</ThemedText>
                </TouchableOpacity>
              )}
            />
          </ThemedView>
        </ScrollView>
      </ThemedView>

      <Modal isVisible={activeCategory !== null}>
        <ThemedView style={{...styles.modalView, backgroundColor: Colors[colorScheme].background}}>
          <ThemedText type="subtitle" style={{marginBottom: 30, textAlign: 'center'}}>{activeCategory?.name}</ThemedText>

          <View style={styles.modalType}>
            <Image source={{uri: activeCategory?.type.image}} style={styles.modalTypeImage}/>
            <ThemedText>{activeCategory?.type?.name}</ThemedText>
          </View>

          <View style={{alignItems: 'center'}}>
            <ThemedText type="defaultSemiBold">Opmerking:</ThemedText>
            <ThemedText>{activeCategory?.description}</ThemedText>
          </View>

          <TouchableOpacity
            onPress={() => setActiveCategory(null)}
            style={{...styles.modalClose, backgroundColor: Colors[colorScheme].tint}}>
            <ThemedText style={{color: '#fff'}}>Sluiten</ThemedText>
          </TouchableOpacity>
        </ThemedView>
      </Modal>
    </SafeAreaView>
  );
}

const styles = StyleSheet.create({
  container: {
    marginTop: StatusBar.currentHeight,
    padding: 25,
  },
  titleContainer: {
    flexDirection: 'row',
    alignItems: 'center',
    gap: 8,
    paddingBottom: 8,
  },
  searchContainer: {
    marginTop: 10,
  },
  categoriesContainer: {
    marginTop: 25,
  },
  listContainer: {
    marginTop: 10,
    paddingBottom: 50
  },
  listItem: {
    flex: 1,
    display: 'flex',
    gap: 8,
    flexDirection: 'row',
    alignItems: 'center',
    paddingBottom: 10,
    marginBottom: 10,
    borderBottomWidth: 1,
    borderBottomColor: '#f2f2f2',
  },
  listImage: {
    width: 30,
    height: 30,
    borderRadius: 5,
    marginRight: 8,
  },
  modalView: {
    margin: 20,
    borderRadius: 5,
    padding: 35,
    alignItems: 'center',
    textAlign: 'center',
  },
  modalType: {
    flex: 1,
    display: 'flex',
    gap: 8,
    flexDirection: 'row',
    alignItems: 'center',
    paddingBottom: 10,
    marginBottom: 30,
  },
  modalTypeImage: {
    width: 40,
    height: 40,
    borderRadius: 5,
    marginRight: 8,
  },
  modalClose: {
    borderRadius: 5,
    paddingTop: 10,
    paddingBottom: 10,
    paddingLeft: 40,
    paddingRight: 40,
    marginTop: 30,
  },
});