citas-react-native/App.js at master · christian97dd/citas-react-native · GitHub

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import React, { useState, useEffect } from 'react';
import { Text, StyleSheet, View, FlatList, TouchableHighlight, TouchableWithoutFeedback, Keyboard, Platform  } from 'react-native';
import Cita from './componentes/Cita';
import Formulario from './componentes/Formulario';
import AsyncStorage from '@react-native-community/async-storage';

const App = () => {

  const [citas, setCitas] = useState([]);
  const [mostrarform, guardarMostrarForm] = useState(false);

  useEffect(() => {
    const obtenerCitasStorage = async () => {
        try {
            const citasStorage = await AsyncStorage.getItem('citas');
            if(citasStorage) {
                setCitas(JSON.parse(citasStorage))
            }
        } catch (error) {
            console.log(error);
        }
    }
    obtenerCitasStorage();
  }, []);


  const eliminarPaciente = id => {

    const citasFiltradas = citas.filter( cita => cita.id !== id );
    setCitas( citasFiltradas );
    guardarCitasStorage(JSON.stringify(citasFiltradas));
  }

  const mostrarFormulario = () => {
    guardarMostrarForm(!mostrarform);
  }


  const cerrarTeclado = () => {
    Keyboard.dismiss();
  }


  const guardarCitasStorage = async (citasJSON) => {
    try {
      await AsyncStorage.setItem('citas', citasJSON);
    } catch (error) {
        console.log(error);
    }
  }

  return (
    <TouchableWithoutFeedback onPress={() => cerrarTeclado() }>
      <View style={styles.contenedor}>
          <Text style={styles.titulo}>Administrador de Citas</Text>

          <View>
              <TouchableHighlight onPress={ () => mostrarFormulario() } style={styles.btnMostrarForm}>
                  <Text style={styles.textoMostrarForm}> {mostrarform ? 'Cancelar Crear Cita' : 'Crear Nueva Cita'} </Text>
              </TouchableHighlight>
          </View>

          <View style={styles.contenido}>
            { mostrarform ? (
              <>
                <Text style={styles.titulo}>Crear Nueva Cita</Text>
                <Formulario
                  citas={citas}
                  setCitas={setCitas}
                  guardarMostrarForm={guardarMostrarForm}
                  guardarCitasStorage={guardarCitasStorage}
                />
              </>
            ) : (
              <>
                <Text style={styles.titulo}> {citas.length > 0 ? 'Administra tus citas' : 'No hay citas, agrega una'} </Text>
                <FlatList
                    style={styles.listado}
                    data={citas}
                    renderItem={ ({item}) => <Cita item={item} eliminarPaciente={eliminarPaciente} />  }
                    keyExtractor={ cita => cita.id}
                />
              </>
            ) }


          </View>

      </View>
    </TouchableWithoutFeedback>
  );
};

const styles = StyleSheet.create({
  contenedor: {
    backgroundColor: '#AA076B',
    flex: 1
  },
  titulo: {
    color: '#FFF',
    marginTop: Platform.OS === 'ios' ?  40  : 20 ,
    marginBottom: 20,
    fontSize: 24,
    fontWeight: 'bold',
    textAlign: 'center'
  },
  contenido: {
    flex: 1,
    marginHorizontal: '2.5%',
  },
  listado: {
    flex: 1,
  },
  btnMostrarForm: {
      padding: 10,
      backgroundColor:'#7d024e',
      marginVertical: 10
  },
  textoMostrarForm: {
      color: '#FFF',
      fontWeight: 'bold',
      textAlign: 'center'
  }
});

export default App;