import {PullToRefreshView} from "react-native-smooth-pull-to-refresh";

export class App extends Component<AppProps, AppState> {

  public state: AppState = {
    title: "Pull down to refresh",
    isRefreshing: false,
  };

  public render() {
    return (
      <View style={styles.container}>
        <View style={{height: 64, backgroundColor: "#24bdd8"}}>
          <Text style={{top: 35, fontWeight: "bold", fontSize: 18, color: "white", textAlign: "center"}}>Header</Text>
        </View>
        <PullToRefreshView
          minPullDistance={70}
          pullAnimHeight={70}
          pullAnimYValues={{from: -50, to: 10}}
          isRefreshing={this.state.isRefreshing}
          onRefresh={this.onInnerRefresh}
          onTriggerToRefresh={this.onTriggerToRefresh}
          contentComponent={
            <ScrollView>
              <Text style={styles.block1}>BLOCK 1</Text>
              <Text style={styles.block2}>BLOCK 2</Text>
              <Text style={styles.block3}>BLOCK 3</Text>
            </ScrollView>
          }
        >
          <RefreshView title={this.state.title}/>
        </PullToRefreshView>
      </View>
    );
  }

  @autobind
  private onInnerRefresh() {
    this.setState({title: "Loading..."});
    this.startRefreshing();
  }

  @autobind
  private onTriggerToRefresh(triggered: boolean) {
    this.setState({title: triggered ? "Release to refresh" : "Pull down to refresh"});
  }

  private startRefreshing() {
    this.setState({
      isRefreshing: true,
    });
    setTimeout(() => {
      this.setState({isRefreshing: false});
    }, 1500);
  }