import { View, Text, StyleSheet, TouchableHighlight, Image } from "react-native"
import { FlatList, TextInput } from "react-native-gesture-handler"
import { CITIES_DATA, City, getCurrentWeather, FAVORITE_CITY_DATA } from "../data/stub"
import { VilleCompopo } from "../components/VilleCompopo";
import { TopBar } from "../components/TopBar";
import { useDispatch, useSelector } from "react-redux";
import { useEffect, useState } from "react";
import { getWeatherList } from "../redux/actions/getWeatherList";


export default function CityList({navigation}){

    const weatherList = useSelector(state => state.appReducer.weatherList);

    const favoriteCity = useSelector(state => state.appReducer.favoriteCity)

    // Create a const that will hold the react-redux events dispatcher
    const dispatch = useDispatch();
    
    const [cityName, setCityName] = useState('');
    
    // Let's define a hook that will be used to update the rendered state after the return will be called
    // You cannot perform side-effects outside of a useEffect hook
    useEffect(() => {
      const loadWeather = async () => {
        await dispatch(getWeatherList());
      };
      loadWeather();
    }, [dispatch]);
    

    return (
        <View style={{flex: 1, width: "100%", alignItems: "center"}}>
            <TopBar/>
            <TextInput style={leStyle.searchBar} clearTextOnFocus={true} placeholder="Search a city name" onChangeText={(cityName) => setCityName({cityName})}/>
            <FlatList
            data={weatherList}
            keyExtractor={item =>item.name}
            renderItem={({item}) => <TouchableHighlight onPress={() => navigation.navigate("CityDetails", {"weather": item})}><VilleCompopo weather={item} fav={favoriteCity}/></TouchableHighlight>}
            style={leStyle.container} 
            />
        </View>
    )
}


const leStyle = StyleSheet.create({
    container: {
        flex: 1,
        alignContent: 'center',
        width: '100%'
    },
    searchBar: {
        width: "90%",
        margin: 20,
        height: 30,
        backgroundColor: "powderblue",
        borderRadius: 10,
        textAlign: "center"
    }
});