From b2fe1b816044b8630f570c04c884c8ffcf3e3e61 Mon Sep 17 00:00:00 2001
From: Eug-VS <eug-vs@keemail.me>
Date: Sat, 11 Jan 2020 17:56:38 +0300
Subject: Improve names, getPageComponent() -->  <Page />

Remove 'Page' word from page-components, since they are all
now located in the pages/ folder.
---
 src/pages/Timer/Timer.js                   |  76 ++++++++++++++++++
 src/pages/Timer/TimerButton/TimerButton.js | 119 +++++++++++++++++++++++++++++
 2 files changed, 195 insertions(+)
 create mode 100644 src/pages/Timer/Timer.js
 create mode 100644 src/pages/Timer/TimerButton/TimerButton.js

(limited to 'src/pages/Timer')

diff --git a/src/pages/Timer/Timer.js b/src/pages/Timer/Timer.js
new file mode 100644
index 0000000..4b5925f
--- /dev/null
+++ b/src/pages/Timer/Timer.js
@@ -0,0 +1,76 @@
+import React from 'react';
+
+import { post } from '../../requests';
+
+import Window from "../../components/Window/Window";
+import ContentSection from "../../components/ContentSection/ContentSection";
+import TimerButton from "./TimerButton/TimerButton";
+import SmartList from "../../components/SmartList/SmartList";
+import SolutionCard from "../../components/SolutionCard/SolutionCard";
+
+import { Typography, makeStyles } from "@material-ui/core";
+
+
+const useStyles = makeStyles(theme => ({
+  primary: {
+    padding: theme.spacing(4),
+  },
+  cell: {
+    padding: theme.spacing(5),
+  },
+}));
+
+const Timer = ({ recentSolutions, setRecentSolutions }) => {
+  const classes = useStyles();
+
+  const user = {
+    id: null,
+    username: 'anonymous',
+  };
+
+  const registerResult = result => {
+    const solution = { author_id: user.id, result };
+    post('solutions/', solution).then(response => {
+      setRecentSolutions([response.data].concat(recentSolutions));
+    });
+  };
+
+  const removeSolution = (id) => {
+    setRecentSolutions(recentSolutions.filter((solution => solution.id !== id)));
+  };
+
+  const renderItem = ({ index, style }) => {
+    const solution = recentSolutions[index];
+    return (
+      <div style={style} className={classes.cell}>
+        <SolutionCard data={solution} removeThisCard={removeSolution} />
+      </div>
+    );
+  };
+
+  return (
+    <>
+      <Window type="primary">
+        <div className={classes.primary}>
+          <ContentSection sectionName="Welcome to ChronoCube!">
+            <Typography>
+              Here is some text about how cool this application is, why you should use it
+              and how to make it better!
+            </Typography>
+          </ContentSection>
+          <TimerButton registerResult={registerResult} />
+        </div>
+      </Window>
+      <Window type="secondary" name="Recent solutions">
+        <SmartList
+          itemSize={270}
+          itemCount={recentSolutions.length}
+          renderItem={renderItem}
+        />
+      </Window>
+    </>
+  );
+};
+
+
+export default Timer;
diff --git a/src/pages/Timer/TimerButton/TimerButton.js b/src/pages/Timer/TimerButton/TimerButton.js
new file mode 100644
index 0000000..56d3084
--- /dev/null
+++ b/src/pages/Timer/TimerButton/TimerButton.js
@@ -0,0 +1,119 @@
+import React, { useState, useEffect } from 'react';
+
+import { Paper, Typography } from '@material-ui/core';
+import { makeStyles } from "@material-ui/core/styles";
+
+const useStyles = makeStyles(theme => ({
+  root: {
+    textAlign: 'center',
+    padding: theme.spacing(5),
+    background: theme.palette.primary.main,
+    marginTop: theme.spacing(20),
+  },
+}));
+
+const TimerButton = ({ registerResult }) => {
+  const classes = useStyles();
+
+  const SPACE = 32;
+  const maxCountdown = 15000;
+  const [time, setTime] = useState('00:00:00');
+  const [mode, setMode] = useState('idle');
+  const [repeater, setRepeater] = useState(0);
+
+  useEffect(()=> {
+    clearInterval(repeater);
+    const timestamp = Date.now();
+
+    if (mode === 'countdown') setRepeater(setInterval(() => {
+      const timeDelta = maxCountdown - (Date.now() - timestamp);
+      if (timeDelta <= 0) setMode('over');
+      setTime(convertTimeToString(timeDelta));
+    }, 10));
+
+    if (mode === 'running') setRepeater(setInterval(() => {
+      setTime(convertTimeToString(Date.now() - timestamp));
+    }, 10));
+
+    if (mode === 'over') {
+      setTime('00:00:00');
+    }
+  }, [mode]);
+
+  const handleKeyPress = event => {
+    event.preventDefault();
+    if (event.keyCode === SPACE && mode === 'idle' ) setMode('countdown');
+  };
+
+  const handleKeyUp = event => {
+    clearInterval(repeater);
+    if (event.keyCode === SPACE) {
+      if (mode === 'running') {
+        registerResult(time);
+        setMode('idle');
+      } else if (mode === 'over') {
+        setMode('idle');
+      } else {
+        setMode('running');
+      }
+    }
+  };
+
+  useEffect(() => {
+    window.addEventListener('keyup', handleKeyUp);
+    window.addEventListener('keypress', handleKeyPress);
+
+    return () => {
+      window.removeEventListener('keyup', handleKeyUp);
+      window.removeEventListener('keypress', handleKeyPress);
+    };
+  });
+
+  const composeHelperText = () => {
+    switch (mode) {
+      case 'running': return '_';
+      case 'countdown': return 'Release SPACE to begin';
+      case 'over': return 'You are too late!';
+      default: return 'Hold SPACE to start countdown';
+    }
+  };
+
+  const helperColor = () => {
+    switch (mode) {
+      case 'running': return 'primary';
+      case 'over': return 'secondary';
+      default: return 'textSecondary';
+    }
+  };
+
+  return (
+    <Paper elevation={3} className={classes.root}>
+      <Typography variant="h1"> {time} </Typography>
+      <Typography variant="h5" color={helperColor()}>
+        {composeHelperText()}
+      </Typography>
+    </Paper>
+  );
+};
+
+const convertTimeToString = timeDelta => {
+  let resultTime = '';
+
+  const minute = Math.floor(timeDelta / 60000);
+  if (minute < 10) resultTime += '0';
+  resultTime += minute + ':';
+
+  let second = Math.floor(timeDelta / 1000);
+  if (second < 10) resultTime += '0';
+  if (second > 59) second %= 60;
+  resultTime += second + ':';
+
+  const mill = Math.floor((timeDelta % 1000) / 10);
+  if (mill < 10) resultTime += '0';
+  resultTime += mill;
+
+  return resultTime;
+};
+
+
+export default TimerButton;
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