import { useState, useEffect } from 'react';

import {

  Link, router, useLocalSearchParams

} from 'expo-router';

import {

  View,

  Text,

  StyleSheet,

  ScrollView

} from 'react-native';

import { SafeAreaView } from 'react-native-safe-area-context';

import { ThemedText } from '@/components/misc/themed-text';

import { ThemedView } from '@/components/misc/themed-view';

import { ScreenLayout } from '@/components/ui/ScreenLayout';

import { useAuth } from '@/context/AuthContext';

import { Grid, Col, Row, Between, Center } from '@/components/ui/LayoutHelpers';

import { Card } from '@/components/ui/Cards';

import { Button } from '@/components/ui/Button';

import { Input, TextArea } from '@/components/ui/Input';

import { Section, SectionHeader } from '@/components/ui/Sections';

import { Spacing, Typography, Colors } from '@/constants/theme';

import { ScaleSlider } from '@/components/ui/ScaleSlider';

import { MoodComponentCard } from '@/components/ui/MoodComponentCard';

import { Ionicons } from '@expo/vector-icons';

import { useThemeColor, useCreateMoodEntry } from '@/hooks';

import {

  useMoodEntryStore,

} from '@/stores';

import {

  MOODS,

  getMood

} from '@/constants/moods';

import {

  intensityToValue

} from '@/constants/mood-components';

import {

  apiClient

} from '@/lib/api';

export default function NewMoodEntry() {

  const { user } = useAuth();

  const tintColor = useThemeColor({}, 'tint');

  const { initialMood } = useLocalSearchParams();

  const [annotation, setAnnotation] = useState();

  const [stress, setStress] = useState(0);

  const [anxiety, setAnxiety] = useState(0);

  const [energy, setEnergy] = useState(0);

  const {

    selectedMood,

    setSelectedMood,

    components,

    reset

  } = useMoodEntryStore();

  const createMoodEntry = useCreateMoodEntry();

  useEffect(() => {

    setSelectedMood(getMood(initialMood));

  }, [initialMood]);

  useEffect(() => {

    return () => reset();

  }, []);

  const saveMoodEntry = async () => {

    const data = {

      selectedMood: selectedMood?.id.toUpperCase(),

      stressLevel: stress,

      energyLevel: energy,

      anxietyLevel: anxiety,

      moment: new Date(),

      annotation: annotation,

      moodComponents: components.map((c) => ({

        component: c.id.toUpperCase(),

        intensity: intensityToValue(c.intensity)

      }))

    };

    await createMoodEntry.mutateAsync(data)

    reset();

    router.replace("/")

  }

  const editComponents = () => {

    router.push("/entry/mood-components")

  }

  return (

    <View>

      <ScrollView

        scrollEventThrottle={16}>

        <View style={styles.container}>

          <Center>

            <ThemedText style={styles.statusPrefix}>

              Como você está se sentindo agora?

            </ThemedText>

            <ThemedText style={styles.statusText}>

              {selectedMood?.label || "Neutro"}

            </ThemedText>

          </Center>

          <Card style={styles.resumeCard}>

            <Col gap={24}>

              <ScaleSlider

                variant="rich"

                label="Energia"

                value={energy}

                onValueChange={setEnergy}

                icon={<Ionicons name="flower-outline" size={20} color={tintColor} />}

                minLabel="Baixa"

                maxLabel="Alta"

              />

              <ScaleSlider

                variant="rich"

                label="Ansiedade"

                value={anxiety}

                onValueChange={setAnxiety}

                icon={<Ionicons name="sad-outline" size={20} color="#FB923C" />}

                minLabel="Calmo"

                maxLabel="Ansioso"

              />

              <ScaleSlider

                variant="rich"

                label="Estresse"

                value={stress}

                onValueChange={setStress}

                icon={<Ionicons name="flame" size={20} color="#f87171" />}

                minLabel="Relaxado"

                maxLabel="Estressado"

              />

            </Col>

          </Card>

          <Card style={styles.annotationsCard}>

            <TextArea

              label="Notas sobre o dia"

              type="text"

              variant="darkGhost"

              onChangeText={(val) => setAnnotation(val)}

              value={annotation}

              minRows={4}

              maxRows={6}

              placeholder="Escreva uma nota rápida sobre o seu dia até o momento..."

            />

          </Card>

          <Section>

            <SectionHeader title="Componentes do Humor" info="Editar" />

            {components.length > 0 ? (

              <Grid gap={2} style={{ marginTop: 8 }}>

                {components.map((comp) => (

                  <MoodComponentCard

                    key={comp.id}

                    id={comp.id}

                    intensity={comp.intensity}

                  />

                ))}

              </Grid>

            ) : null}

            <Button title="Adicionar Componentes"

              onPress={editComponents}

              textStyle={{ fontWeight: 500 }}

              variant="dashed"

            />

          </Section>

          <Button title="Salvar Registro"

            onPress={saveMoodEntry}

            disabled={!components.length}

          />

        </View>

      </ScrollView>

    </View>

  );

}

const styles = StyleSheet.create({

  container: {

    gap: 24,

    paddingHorizontal: Spacing.containerPadding,

    paddingVertical: Spacing.sectionGap,

  },

  statusText: {

    ...Typography.headlineXg,

  },

  statusPrefix: {

    ...Typography.bodyMd

  },

  annotationsCard: {

    padding: Spacing.cardGap

  },

  resumeCard: {

    padding: Spacing.cardGap,

  }

});