import React from 'react'
import {
  Alert,
  ScrollView,
  TextInput,
  TouchableOpacity,
  View
} from 'react-native'
import FeatherIcon from 'react-native-vector-icons/Feather'

import infoLabels from '../../../i18n/en/symptom-info'
import { sex as sexLabels, contraceptives as contraceptivesLabels } from '../../../i18n/en/cycle-day'
import { shared as sharedLabels } from '../../../i18n/en/labels'
import styles, { iconStyles } from '../../../styles'

import SelectBoxGroup from '../select-box-group'

import SymptomSection from './symptom-section'
import SymptomView from './symptom-view'

export default class Sex extends SymptomView {
  constructor(props) {
    super(props)
    const cycleDay = props.cycleDay
    if (cycleDay && cycleDay.sex) {
      this.state = Object.assign({}, cycleDay.sex)
    } else {
      this.state = {}
    }
    // We make sure other is always true when there is a note,
    // e.g. when import is messed up.
    if (this.state.note) this.state.other = true
  }

  symptomName = 'sex'

  showInfoBox(){
    const symptomName = 'sex'
    Alert.alert(
      infoLabels[symptomName].title,
      infoLabels[symptomName].text
    )
  }
  
  onBackButtonPress() {
    const nothingEntered = Object.values(this.state).every(val => !val)
    if (nothingEntered) {
      this.deleteSymptomEntry()
      return
    }

    const copyOfState = Object.assign({}, this.state)
    if (!copyOfState.other) {
      copyOfState.note = null
    }
    this.saveSymptomEntry(copyOfState)
  }

  toggleState = (key) => {
    const curr = this.state[key]
    this.setState({[key]: !curr})
    if (key === 'other' && !curr) {
      this.setState({focusTextArea: true})
    }
  }

  renderContent() {
    return (
      <ScrollView style={styles.page}>
        <View style={{ flexDirection: 'row' }}>
          <SymptomSection
            header={sexLabels.header}
            explainer={sexLabels.explainer}
          >
            <SelectBoxGroup
              labels={sexLabels.categories}
              onSelect={this.toggleState}
              optionsState={this.state}
            />
          </SymptomSection>
          <View style={{ flex: 1 }}></View>
          <TouchableOpacity
            onPress={this.showInfoBox}
            style={styles.infoButton}
          >
            <FeatherIcon
              name="info"
              style={iconStyles.symptomInfo}
            />
          </TouchableOpacity>
        </View>
        <SymptomSection
          header={contraceptivesLabels.header}
          explainer={contraceptivesLabels.explainer}
        >
          <SelectBoxGroup
            labels={contraceptivesLabels.categories}
            onSelect={this.toggleState}
            optionsState={this.state}
          />
        </SymptomSection>

        {this.state.other &&
            <TextInput
              autoFocus={this.state.focusTextArea}
              multiline={true}
              placeholder={sharedLabels.enter}
              value={this.state.note}
              onChangeText={(val) => {
                this.setState({ note: val })
              }}
            />
        }
      </ScrollView>
    )
  }
}