import {
  View,
  StyleSheet,
  KeyboardAvoidingView,
  ScrollView,
} from "react-native";
import { Text } from "@/components/ui/Text";
import { useState } from "react";
import { router } from "expo-router";

import { Card } from "@/components/ui/Cards";
import { TextArea } from "@/components/ui/Input";
import { Button } from "@/components/ui/Button";
import { Spacing, Typography, Colors, BorderRadius } from "@/constants/theme";
import { Ionicons } from "@expo/vector-icons";
import { DatePickerField } from "@/components/ui/DatePickerField";
import { ScaleSlider } from "@/components/ui/ScaleSlider";
import { useCreateSleepRecord } from "@/hooks";
import { useToast } from "@/context/ToastContext";
import { ApiError } from "@/lib/api";
import { translateError } from "@/lib/errors/translations";

export default function NewSleepRecord() {
  const [date, setDate] = useState(new Date());
  const [annotations, setAnnotations] = useState("");
  const [average, setAverage] = useState(7.5);
  const createSleepRecord = useCreateSleepRecord();
  const { showToast } = useToast();

  const formatValue = (value: number): string => {
    return String(value).replaceAll(".", ",");
  };

  const save = async () => {
    try {
      const data = { date, annotations, average };
      await createSleepRecord.mutateAsync(data);
      router.replace("/");
    } catch (error) {
      showToast(
        error instanceof ApiError ? translateError(error) : 'Falha ao salvar o registro de sono',
        'error',
      );
    }
  };

  return (
    <KeyboardAvoidingView behavior="height" style={styles.keyboardView}>
      <ScrollView scrollEventThrottle={16}>
        <View style={styles.container}>
          <View style={styles.header}>
            <View style={styles.innerHeaderWrapper}>
              <View style={[styles.headerIcon, { backgroundColor: "#EFF6FF" }]}>
                <Ionicons name="moon-outline" size={20} color="#2563EB" />
              </View>

              <View style={styles.headerTitleSubtitle}>
                <Text style={styles.headerTitle}>Bom descanso</Text>
                <Text style={styles.headerSubtitle}>
                  Registre sua noite de sono
                </Text>
              </View>
            </View>

            <Text style={styles.description}>
              Acompanhar seu sono ajuda a entender como seu corpo se recupera e
              melhora sua performance diária.
            </Text>
          </View>

          <Card style={styles.mainCard}>
            <DatePickerField
              label="Data do Registro"
              initialDate={date}
              maximumDate={new Date()}
              onChange={setDate}
            />

            <View style={{ marginVertical: 15 }}>
              <ScaleSlider
                label="Duração"
                value={average}
                onValueChange={setAverage}
                onValueFormat={formatValue}
                step={0.5}
                min={0.0}
                max={15.0}
                minLabel="0h"
                maxLabel="15h"
              />
            </View>

            <TextArea
              label="Notas sobre a qualidade"
              variant="darkGhost"
              onChangeText={(val) => setAnnotations(val)}
              value={annotations}
              minRows={5}
              maxRows={10}
              placeholder="Como você se sentiu ao acordar? Teve sonhos marcantes?"
            />
          </Card>

          <Button title="Salvar Registro" onPress={save} />
        </View>
      </ScrollView>
    </KeyboardAvoidingView>
  );
}

const styles = StyleSheet.create({
  container: {
    gap: 24,
    paddingHorizontal: Spacing.containerPadding,
    paddingVertical: Spacing.sectionGap,
  },
  mainCard: {
    padding: Spacing.cardGap,
  },
  // Header
  header: {},
  headerIcon: {
    paddingVertical: 15,
    paddingHorizontal: 14,
    width: 48,
    borderRadius: BorderRadius.md,
  },
  innerHeaderWrapper: {
    flex: 1,
    flexDirection: "row",
    alignItems: "center",
  },
  headerTitleSubtitle: {
    marginLeft: 10,
  },
  headerTitle: {
    ...Typography.headlineMd,
  },
  headerSubtitle: {
    ...Typography.bodyMd,
    color: Colors.light.textSecondary,
  },
  description: {
    ...Typography.bodyMd,
    color: Colors.light.textSecondary,
    marginTop: 20,
  },
  keyboardView: {
    flex: 1,
  },
});