809 lines
22 KiB
TypeScript
809 lines
22 KiB
TypeScript
import * as Haptics from 'expo-haptics';
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import * as React from 'react';
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import {
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Animated,
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Dimensions,
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Easing,
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StatusBar,
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StyleSheet,
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Text,
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TouchableOpacity,
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View,
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} from 'react-native';
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const { width, height } = Dimensions.get('window');
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const colors = {
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black: '#323F4E',
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red: '#F76A6A',
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text: '#ffffff',
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};
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const TIMER_OPTIONS = [...Array(13).keys()].map((index) => (index === 0 ? 1 : index * 5));
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const ITEM_SIZE = width * 0.38;
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const ITEM_SPACING = (width - ITEM_SIZE) / 2;
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const TIMER_UNIT_IN_SECONDS = 60;
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const HOLD_TO_CANCEL_MS = 2000;
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const CANCEL_ANIMATION_DELAY_MS = 250;
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const BUTTON_PRESS_IN_MS = 80;
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const BUTTON_PRESS_OUT_MS = 140;
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const placeholderTask = {
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name: 'Read chapter 4',
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description: 'Focus on the summary questions and write down anything unclear.',
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};
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function formatTime(totalSeconds: number) {
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const minutes = Math.floor(totalSeconds / 60);
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const seconds = totalSeconds % 60;
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return `${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
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}
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export default function TimerScreen() {
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const [containerHeight, setContainerHeight] = React.useState(0);
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const [duration, setDuration] = React.useState(TIMER_OPTIONS[0]);
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const [timerIsRunning, setIsRunning] = React.useState(false);
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const [timeRemaining, setTimeRemaining] = React.useState(0);
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const scrollX = React.useRef(new Animated.Value(0)).current;
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const timerAnimation = React.useRef(new Animated.Value(0)).current;
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const buttonAnimation = React.useRef(new Animated.Value(0)).current;
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const taskDetailsAnimation = React.useRef(new Animated.Value(0)).current;
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const countdownAnimation = React.useRef(new Animated.Value(0)).current;
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const cancelButtonAnimation = React.useRef(new Animated.Value(0)).current;
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const pressedButtonAnimation = React.useRef(new Animated.Value(0)).current;
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const focusModeAnimation = React.useRef(new Animated.Value(0)).current;
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const cancelOverlayAnimation = React.useRef(new Animated.Value(0)).current;
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const countdownRef = React.useRef<ReturnType<typeof setInterval> | null>(null);
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const cancelHoldTimeoutRef = React.useRef<ReturnType<typeof setTimeout> | null>(null);
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const cancelHoldAnimationDelayRef = React.useRef<ReturnType<typeof setTimeout> | null>(null);
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const runningAnimationRef = React.useRef<Animated.CompositeAnimation | null>(null);
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const progressAnimationRef = React.useRef<Animated.CompositeAnimation | null>(null);
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const sessionStartedAtRef = React.useRef<number | null>(null);
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const sessionDurationMsRef = React.useRef(0);
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const cancelAccelStartedRef = React.useRef(false);
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const cancelHoldActiveRef = React.useRef(false);
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const cancelHoldIdRef = React.useRef(0);
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const cancelHoldStartedAtRef = React.useRef(0);
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React.useEffect(() => {
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if (containerHeight > 0 && !timerIsRunning) {
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timerAnimation.setValue(containerHeight);
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}
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}, [containerHeight, timerIsRunning, timerAnimation]);
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const pressedButtonScale = pressedButtonAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [1, 0.9],
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});
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const cancelButtonTranslateY = cancelButtonAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [16, 0],
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});
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// Real timer progress comes from timerAnimation. The cancel hold adds a
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// temporary visual offset on top so release/cancel logic does not fight the
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// underlying progress animation.
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const timerOverlayTranslateY = Animated.add(
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timerAnimation,
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cancelOverlayAnimation
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).interpolate({
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inputRange: [0, Math.max(containerHeight, 1)],
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outputRange: [0, Math.max(containerHeight, 1)],
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extrapolate: 'clamp',
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});
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const countdownTranslateX = focusModeAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [0, -width * 0.3],
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});
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const countdownTranslateY = focusModeAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [0, -containerHeight * 0.35],
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});
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const countdownScale = focusModeAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [1, 0.55],
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});
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const startButtonOpacity = buttonAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [1, 0],
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});
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const startButtonTranslateY = buttonAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [0, 200],
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});
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const pickerOpacity = buttonAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [1, 0],
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});
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const taskDetailsOpacity = taskDetailsAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [0, 1],
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});
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const taskDetailsTranslateY = taskDetailsAnimation.interpolate({
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inputRange: [0, 1],
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outputRange: [20, 0],
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});
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const clearCountdownInterval = React.useCallback(() => {
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if (countdownRef.current) {
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clearInterval(countdownRef.current);
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countdownRef.current = null;
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}
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}, []);
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const clearCancelHoldTimeouts = React.useCallback(() => {
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if (cancelHoldTimeoutRef.current) {
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clearTimeout(cancelHoldTimeoutRef.current);
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cancelHoldTimeoutRef.current = null;
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}
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if (cancelHoldAnimationDelayRef.current) {
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clearTimeout(cancelHoldAnimationDelayRef.current);
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cancelHoldAnimationDelayRef.current = null;
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}
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}, []);
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const stopRunningAnimations = React.useCallback(() => {
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runningAnimationRef.current?.stop();
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runningAnimationRef.current = null;
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progressAnimationRef.current?.stop();
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progressAnimationRef.current = null;
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cancelOverlayAnimation.stopAnimation();
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}, [cancelOverlayAnimation]);
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React.useEffect(() => {
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return () => {
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clearCountdownInterval();
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clearCancelHoldTimeouts();
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stopRunningAnimations();
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};
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}, [clearCancelHoldTimeouts, clearCountdownInterval, stopRunningAnimations]);
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const animateButtonPress = React.useCallback(
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(pressed: boolean) => {
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Animated.timing(pressedButtonAnimation, {
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toValue: pressed ? 1 : 0,
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duration: pressed ? BUTTON_PRESS_IN_MS : BUTTON_PRESS_OUT_MS,
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useNativeDriver: true,
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}).start();
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},
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[pressedButtonAnimation]
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);
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const resetSessionValues = React.useCallback(() => {
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sessionStartedAtRef.current = null;
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sessionDurationMsRef.current = 0;
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cancelHoldActiveRef.current = false;
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cancelAccelStartedRef.current = false;
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timerAnimation.setValue(containerHeight);
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cancelOverlayAnimation.setValue(0);
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setTimeRemaining(0);
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setIsRunning(false);
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}, [cancelOverlayAnimation, containerHeight, timerAnimation]);
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const finishTimer = React.useCallback(() => {
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clearCountdownInterval();
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Animated.parallel([
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Animated.timing(countdownAnimation, {
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toValue: 0,
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duration: 200,
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useNativeDriver: true,
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}),
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Animated.timing(focusModeAnimation, {
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toValue: 0,
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duration: 250,
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useNativeDriver: true,
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}),
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Animated.timing(taskDetailsAnimation, {
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toValue: 0,
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duration: 300,
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useNativeDriver: true,
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}),
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]).start(() => {
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Animated.parallel([
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Animated.timing(buttonAnimation, {
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toValue: 0,
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duration: 300,
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useNativeDriver: true,
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}),
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Animated.timing(cancelButtonAnimation, {
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toValue: 0,
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duration: 300,
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useNativeDriver: true,
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}),
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]).start(() => {
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setIsRunning(false);
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/* TODO
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Implement store and send of ellapsed time value in seconds to DB
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for total time spent statistic
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*/
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resetSessionValues();
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});
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});
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}, [
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buttonAnimation,
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cancelButtonAnimation,
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clearCountdownInterval,
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countdownAnimation,
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focusModeAnimation,
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resetSessionValues,
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taskDetailsAnimation,
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]);
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// This picks up the timer overlay animation from the current Y position and
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// runs it to the bottom over the remaining session time.
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const startProgressAnimation = React.useCallback(
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(fromY: number) => {
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const elapsedRatio = fromY / containerHeight;
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const remainingMs = sessionDurationMsRef.current * (1 - elapsedRatio);
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sessionStartedAtRef.current = Date.now() - sessionDurationMsRef.current * elapsedRatio;
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timerAnimation.setValue(fromY);
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const progressAnimation = Animated.timing(timerAnimation, {
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toValue: containerHeight,
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duration: remainingMs,
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useNativeDriver: true,
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});
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progressAnimationRef.current = progressAnimation;
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progressAnimation.start(({ finished }) => {
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progressAnimationRef.current = null;
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if (!finished) {
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return;
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}
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finishTimer();
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});
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},
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[containerHeight, finishTimer, timerAnimation]
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);
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const runStartSequence = React.useCallback(() => {
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const runningAnimation = Animated.sequence([
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Animated.parallel([
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Animated.timing(buttonAnimation, {
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toValue: 1,
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duration: 300,
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useNativeDriver: true,
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}),
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Animated.timing(cancelButtonAnimation, {
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toValue: 1,
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duration: 300,
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useNativeDriver: true,
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}),
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Animated.timing(countdownAnimation, {
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toValue: 1,
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duration: 300,
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useNativeDriver: true,
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}),
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Animated.timing(timerAnimation, {
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toValue: 0,
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duration: 300,
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useNativeDriver: true,
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}),
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]),
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Animated.timing(focusModeAnimation, {
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toValue: 1,
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duration: 450,
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useNativeDriver: true,
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}),
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Animated.timing(taskDetailsAnimation, {
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toValue: 1,
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duration: 500,
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useNativeDriver: true,
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}),
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]);
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runningAnimationRef.current = runningAnimation;
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runningAnimation.start(({ finished }) => {
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runningAnimationRef.current = null;
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if (!finished) {
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return;
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}
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startProgressAnimation(0);
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});
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}, [
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buttonAnimation,
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cancelButtonAnimation,
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countdownAnimation,
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focusModeAnimation,
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startProgressAnimation,
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taskDetailsAnimation,
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timerAnimation,
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]);
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const startCountdown = React.useCallback(
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(totalSeconds: number) => {
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setTimeRemaining(totalSeconds);
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clearCountdownInterval();
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countdownRef.current = setInterval(() => {
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setTimeRemaining((currentTime) => {
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if (currentTime <= 1) {
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clearCountdownInterval();
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return 0;
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}
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return currentTime - 1;
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});
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}, 1000);
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},
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[clearCountdownInterval]
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);
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const startTimerSession = React.useCallback(() => {
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if (timerIsRunning || containerHeight === 0) {
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return;
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}
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Haptics.notificationAsync(Haptics.NotificationFeedbackType.Success);
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setIsRunning(true);
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taskDetailsAnimation.setValue(0);
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countdownAnimation.setValue(0);
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cancelOverlayAnimation.setValue(0);
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const totalSeconds = duration * TIMER_UNIT_IN_SECONDS;
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sessionStartedAtRef.current = Date.now();
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sessionDurationMsRef.current = totalSeconds * 1000;
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startCountdown(totalSeconds);
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runStartSequence();
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}, [
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cancelOverlayAnimation,
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containerHeight,
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countdownAnimation,
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duration,
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runStartSequence,
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startCountdown,
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taskDetailsAnimation,
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timerIsRunning,
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]);
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const cancelTimer = React.useCallback(() => {
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if (!timerIsRunning) {
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return;
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}
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clearCountdownInterval();
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clearCancelHoldTimeouts();
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stopRunningAnimations();
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Animated.parallel([
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Animated.timing(cancelButtonAnimation, {
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toValue: 0,
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duration: 180,
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useNativeDriver: true,
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}),
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Animated.timing(taskDetailsAnimation, {
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toValue: 0,
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duration: 220,
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useNativeDriver: true,
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}),
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Animated.timing(focusModeAnimation, {
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toValue: 0,
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duration: 250,
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useNativeDriver: true,
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}),
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Animated.timing(countdownAnimation, {
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toValue: 0,
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duration: 180,
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useNativeDriver: true,
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}),
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Animated.timing(timerAnimation, {
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toValue: containerHeight,
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duration: 300,
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useNativeDriver: true,
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}),
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Animated.timing(cancelOverlayAnimation, {
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toValue: 0,
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duration: 120,
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useNativeDriver: true,
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}),
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]).start(() => {
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Animated.timing(buttonAnimation, {
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toValue: 0,
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duration: 220,
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useNativeDriver: true,
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}).start(() => {
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resetSessionValues();
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});
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});
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}, [
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buttonAnimation,
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cancelButtonAnimation,
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cancelOverlayAnimation,
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clearCancelHoldTimeouts,
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clearCountdownInterval,
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containerHeight,
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countdownAnimation,
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focusModeAnimation,
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resetSessionValues,
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stopRunningAnimations,
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taskDetailsAnimation,
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timerAnimation,
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timerIsRunning,
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]);
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const handleCancelHoldStart = React.useCallback(() => {
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animateButtonPress(true);
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cancelHoldIdRef.current += 1;
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const cancelHoldId = cancelHoldIdRef.current;
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cancelHoldActiveRef.current = true;
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cancelHoldStartedAtRef.current = Date.now();
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cancelAccelStartedRef.current = false;
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cancelHoldAnimationDelayRef.current = setTimeout(() => {
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cancelHoldAnimationDelayRef.current = null;
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if (!cancelHoldActiveRef.current || cancelHoldIdRef.current !== cancelHoldId) {
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return;
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}
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// The hold starts with normal button feedback. After a short delay, we
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// begin the accelerated red overlay preview so quick taps do not cause a
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// jolt, while long holds still clearly show that cancel is about to fire.
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cancelAccelStartedRef.current = true;
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cancelOverlayAnimation.setValue(0);
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const elapsedHoldMs = Date.now() - cancelHoldStartedAtRef.current;
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const remainingHoldMs = Math.max(1, HOLD_TO_CANCEL_MS - elapsedHoldMs);
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const sessionStartedAt = sessionStartedAtRef.current ?? Date.now();
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const elapsedAtCancelMs = Date.now() + remainingHoldMs - sessionStartedAt;
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const expectedProgress = elapsedAtCancelMs / sessionDurationMsRef.current;
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const clampedProgress = Math.max(0, Math.min(expectedProgress, 1));
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const expectedYAtCancel = containerHeight * clampedProgress;
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const cancelOffset = Math.max(0, containerHeight - expectedYAtCancel);
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Animated.timing(cancelOverlayAnimation, {
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toValue: cancelOffset,
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duration: remainingHoldMs,
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easing: Easing.in(Easing.quad),
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useNativeDriver: true,
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}).start();
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}, CANCEL_ANIMATION_DELAY_MS);
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cancelHoldTimeoutRef.current = setTimeout(() => {
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cancelHoldActiveRef.current = false;
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cancelHoldIdRef.current += 1;
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cancelAccelStartedRef.current = false;
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Haptics.notificationAsync(Haptics.NotificationFeedbackType.Warning);
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cancelTimer();
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cancelHoldTimeoutRef.current = null;
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}, HOLD_TO_CANCEL_MS);
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}, [animateButtonPress, cancelOverlayAnimation, cancelTimer, containerHeight]);
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const handleCancelHoldEnd = React.useCallback(() => {
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animateButtonPress(false);
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cancelHoldActiveRef.current = false;
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cancelHoldIdRef.current += 1;
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clearCancelHoldTimeouts();
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if (!cancelAccelStartedRef.current) {
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return;
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}
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cancelAccelStartedRef.current = false;
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cancelOverlayAnimation.stopAnimation((currentOffset) => {
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cancelOverlayAnimation.setValue(currentOffset);
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Animated.timing(cancelOverlayAnimation, {
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toValue: 0,
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duration: 750,
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easing: Easing.in(Easing.bounce),
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useNativeDriver: true,
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}).start();
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});
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}, [animateButtonPress, cancelOverlayAnimation, clearCancelHoldTimeouts]);
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const handleTimerPickerMomentumEnd = React.useCallback(
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(event: { nativeEvent: { contentOffset: { x: number } } }) => {
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if (timerIsRunning) {
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return;
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}
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const index = Math.round(event.nativeEvent.contentOffset.x / ITEM_SIZE);
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const clampedIndex = Math.max(0, Math.min(index, TIMER_OPTIONS.length - 1));
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setDuration(TIMER_OPTIONS[clampedIndex]);
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},
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[timerIsRunning]
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);
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const renderTimerItem = React.useCallback(
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({ item, index }: { item: number; index: number }) => {
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const inputRange = [
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(index - 1) * ITEM_SIZE,
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index * ITEM_SIZE,
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(index + 1) * ITEM_SIZE,
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];
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const baseOpacity = scrollX.interpolate({
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inputRange,
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outputRange: [0.4, 1, 0.4],
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});
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const opacity = Animated.multiply(baseOpacity, pickerOpacity);
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const scale = scrollX.interpolate({
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inputRange,
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outputRange: [0.7, 1, 0.7],
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});
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return (
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<View style={styles.timerOptionItem}>
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<Animated.Text
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style={[
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styles.text,
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{
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opacity,
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transform: [{ scale }],
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},
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]}
|
|
>
|
|
{item}
|
|
</Animated.Text>
|
|
</View>
|
|
);
|
|
},
|
|
[pickerOpacity, scrollX]
|
|
);
|
|
|
|
return (
|
|
<View
|
|
style={styles.container}
|
|
onLayout={(event) => {
|
|
setContainerHeight(event.nativeEvent.layout.height);
|
|
}}
|
|
>
|
|
<StatusBar hidden />
|
|
|
|
<Animated.View
|
|
style={[
|
|
StyleSheet.absoluteFillObject,
|
|
styles.timerOverlay,
|
|
{
|
|
height: containerHeight,
|
|
width,
|
|
transform: [{ translateY: timerOverlayTranslateY }],
|
|
},
|
|
]}
|
|
/>
|
|
|
|
<Animated.View
|
|
style={[
|
|
StyleSheet.absoluteFillObject,
|
|
styles.startButtonContainer,
|
|
{
|
|
opacity: startButtonOpacity,
|
|
transform: [{ translateY: startButtonTranslateY }],
|
|
},
|
|
]}
|
|
>
|
|
<TouchableOpacity
|
|
disabled={timerIsRunning}
|
|
onPress={startTimerSession}
|
|
onPressIn={() => animateButtonPress(true)}
|
|
onPressOut={() => animateButtonPress(false)}
|
|
>
|
|
<Animated.View
|
|
style={[
|
|
styles.roundButton,
|
|
{
|
|
transform: [{ scale: pressedButtonScale }],
|
|
},
|
|
]}
|
|
>
|
|
<Text className="text-text-main text-xl">Start</Text>
|
|
<Text className="text-text-main text-xl">Sprint</Text>
|
|
</Animated.View>
|
|
</TouchableOpacity>
|
|
</Animated.View>
|
|
|
|
<Animated.View
|
|
pointerEvents={timerIsRunning ? 'auto' : 'none'}
|
|
style={[
|
|
styles.cancelButtonContainer,
|
|
{
|
|
opacity: cancelButtonAnimation,
|
|
transform: [{ translateY: cancelButtonTranslateY }],
|
|
},
|
|
]}
|
|
>
|
|
<TouchableOpacity onPressIn={handleCancelHoldStart} onPressOut={handleCancelHoldEnd}>
|
|
<Animated.View
|
|
style={[
|
|
styles.cancelButton,
|
|
{
|
|
transform: [{ scale: pressedButtonScale }],
|
|
},
|
|
]}
|
|
>
|
|
<Text className="text-text-main text-xl">Hold to end sprint</Text>
|
|
</Animated.View>
|
|
</TouchableOpacity>
|
|
</Animated.View>
|
|
|
|
<Animated.View
|
|
pointerEvents="none"
|
|
style={[
|
|
styles.countdownOverlay,
|
|
{
|
|
opacity: countdownAnimation,
|
|
transform: [
|
|
{ translateX: countdownTranslateX },
|
|
{ translateY: countdownTranslateY },
|
|
{ scale: countdownScale },
|
|
],
|
|
},
|
|
]}
|
|
>
|
|
<Text style={styles.countdownText}>{formatTime(timeRemaining)}</Text>
|
|
</Animated.View>
|
|
|
|
<View
|
|
style={[
|
|
styles.timerPickerWrapper,
|
|
{
|
|
top: containerHeight / 3,
|
|
},
|
|
]}
|
|
>
|
|
<Animated.FlatList
|
|
data={TIMER_OPTIONS}
|
|
scrollEnabled={!timerIsRunning}
|
|
keyExtractor={(item) => item.toString()}
|
|
horizontal
|
|
bounces={false}
|
|
onScroll={Animated.event([{ nativeEvent: { contentOffset: { x: scrollX } } }], {
|
|
useNativeDriver: true,
|
|
})}
|
|
showsHorizontalScrollIndicator={false}
|
|
onMomentumScrollEnd={handleTimerPickerMomentumEnd}
|
|
snapToInterval={ITEM_SIZE}
|
|
decelerationRate="fast"
|
|
style={styles.timerPickerList}
|
|
contentContainerStyle={styles.timerPickerContent}
|
|
renderItem={renderTimerItem}
|
|
/>
|
|
</View>
|
|
|
|
<Animated.View
|
|
pointerEvents="none"
|
|
style={[
|
|
styles.taskDetails,
|
|
{
|
|
opacity: taskDetailsOpacity,
|
|
transform: [{ translateY: taskDetailsTranslateY }],
|
|
},
|
|
]}
|
|
>
|
|
<Text style={styles.taskName}>{placeholderTask.name}</Text>
|
|
<Text style={styles.taskDescription}>{placeholderTask.description}</Text>
|
|
</Animated.View>
|
|
</View>
|
|
);
|
|
}
|
|
|
|
const styles = StyleSheet.create({
|
|
container: {
|
|
flex: 1,
|
|
backgroundColor: colors.black,
|
|
},
|
|
timerOverlay: {
|
|
backgroundColor: colors.red,
|
|
},
|
|
startButtonContainer: {
|
|
justifyContent: 'flex-end',
|
|
alignItems: 'center',
|
|
paddingBottom: 100,
|
|
},
|
|
roundButton: {
|
|
width: 80,
|
|
height: 80,
|
|
borderRadius: 80,
|
|
backgroundColor: '#beb9a7',
|
|
alignItems: 'center',
|
|
justifyContent: 'center',
|
|
},
|
|
timerPickerWrapper: {
|
|
position: 'absolute',
|
|
left: 0,
|
|
right: 0,
|
|
flex: 1,
|
|
},
|
|
timerPickerList: {
|
|
flexGrow: 0,
|
|
},
|
|
timerPickerContent: {
|
|
paddingHorizontal: ITEM_SPACING,
|
|
},
|
|
timerOptionItem: {
|
|
width: ITEM_SIZE,
|
|
justifyContent: 'center',
|
|
alignItems: 'center',
|
|
},
|
|
text: {
|
|
fontSize: ITEM_SIZE * 0.8,
|
|
fontFamily: 'Menlo',
|
|
color: colors.text,
|
|
fontWeight: '900',
|
|
},
|
|
taskDetails: {
|
|
position: 'absolute',
|
|
top: height * 0.34,
|
|
left: 32,
|
|
right: 32,
|
|
alignItems: 'center',
|
|
},
|
|
taskName: {
|
|
color: colors.text,
|
|
fontSize: 32,
|
|
fontWeight: '800',
|
|
textAlign: 'center',
|
|
},
|
|
taskDescription: {
|
|
color: colors.text,
|
|
fontSize: 24,
|
|
lineHeight: 32,
|
|
marginTop: 20,
|
|
textAlign: 'center',
|
|
},
|
|
countdownText: {
|
|
fontSize: ITEM_SIZE * 0.32,
|
|
fontFamily: 'Menlo',
|
|
color: colors.text,
|
|
fontWeight: '900',
|
|
textAlign: 'center',
|
|
},
|
|
cancelButtonContainer: {
|
|
position: 'absolute',
|
|
left: 0,
|
|
right: 0,
|
|
bottom: 44,
|
|
alignItems: 'center',
|
|
zIndex: 2,
|
|
},
|
|
cancelButton: {
|
|
minWidth: 112,
|
|
height: 44,
|
|
borderRadius: 22,
|
|
borderWidth: 1,
|
|
borderColor: 'rgba(155, 155, 155, 0.35)',
|
|
backgroundColor: '#beb9a7',
|
|
alignItems: 'center',
|
|
justifyContent: 'center',
|
|
paddingHorizontal: 22,
|
|
position: 'relative',
|
|
overflow: 'hidden',
|
|
},
|
|
countdownOverlay: {
|
|
position: 'absolute',
|
|
top: height / 3,
|
|
left: 0,
|
|
right: 0,
|
|
alignItems: 'center',
|
|
},
|
|
});
|