2 files changed, 159 insertions, 22 deletions
diff --git a/src/components/TimerPage/Timer/Timer.js b/src/components/TimerPage/Timer/Timer.js
new file mode 100644
index 0000000..92b153d
--- /dev/null
+++ b/src/components/TimerPage/Timer/Timer.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 Timer = ({ 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 Timer;
diff --git a/src/components/TimerPage/TimerPage.js b/src/components/TimerPage/TimerPage.js
index f304b46..22781bc 100644
--- a/src/components/TimerPage/TimerPage.js
+++ b/src/components/TimerPage/TimerPage.js
@@ -1,19 +1,22 @@
 import React from 'react';
 
-import { Grid, Box } from "@material-ui/core";
-import { makeStyles } from "@material-ui/core/styles";
+import { post } from '../../requests';
 
-import Timer from "../Timer/Timer";
+import Window from "../Window/Window";
+import ContentSection from "../ContentSection/ContentSection";
+import Timer from "./Timer/Timer";
+import SmartList from "../SmartList/SmartList";
 import SolutionCard from "../SolutionCard/SolutionCard";
 
-import { post } from '../../requests';
+import { Typography, makeStyles } from "@material-ui/core";
 
 
 const useStyles = makeStyles(theme => ({
-  root: {
-    display: 'flex',
-    justifyContent: 'space-between',
-    padding: theme.spacing(5, 4, 4, 4),
+  primary: {
+    padding: theme.spacing(4),
+  },
+  cell: {
+    padding: theme.spacing(5),
   },
 }));
 
@@ -36,21 +39,36 @@ const TimerPage = ({ recentSolutions, setRecentSolutions }) => {
     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 (
-    <Box className={classes.root}>
-      <Grid container direction="row" justify="space-around" spacing={8}>
-        <Grid item xs={6}>
-          <Timer registerResult={registerResult} style={{ position: 'fixed' }}/>
-        </Grid>
-        <Grid item xs={4} container direction="column" spacing={5}>
-          {recentSolutions.slice(0, 3).map(solution => (
-            <Grid item key={solution.id}>
-              <SolutionCard data={solution} removeThisCard={removeSolution}/>
-            </Grid>
-          ))}
-        </Grid>
-      </Grid>
-    </Box>
+    <>
+      <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>
+          <Timer registerResult={registerResult} />
+        </div>
+      </Window>
+      <Window type="secondary" name="Recent solutions">
+        <SmartList
+          itemSize={270}
+          itemCount={recentSolutions.length}
+          renderItem={renderItem}
+        />
+      </Window>
+    </>
   );
 };