X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Futils%2FtimeControl.js;fp=client%2Fsrc%2Futils%2FtimeControl.js;h=c4a229506c81cbe3a84b4ed4548621436429fbf9;hb=dd75774d31a140cabf80790bdade9a40048c38d5;hp=0000000000000000000000000000000000000000;hpb=81d9ce72c32c32e62a8b43ca8e94fcb974f4a685;p=vchess.git

diff --git a/client/src/utils/timeControl.js b/client/src/utils/timeControl.js
new file mode 100644
index 00000000..c4a22950
--- /dev/null
+++ b/client/src/utils/timeControl.js
@@ -0,0 +1,46 @@
+function timeUnitToSeconds(value, unit)
+{
+  let seconds = value;
+  switch (unit)
+  {
+    case 'd':
+      seconds *= 24;
+    case 'h':
+      seconds *= 60;
+    case 'm':
+      seconds *= 60;
+  }
+  return seconds;
+}
+
+function isLargerUnit(unit1, unit2)
+{
+  return (unit1 == 'd' && unit2 != 'd')
+    || (unit1 == 'h' && ['s','m'].includes(unit2))
+    || (unit1 == 'm' && unit2 == 's');
+}
+
+export function extractTime(timeControl)
+{
+  const tcParts = timeControl.replace(/ /g,"").split('+');
+	const mainTimeArray = tcParts[0].match(/([0-9]+)([smhd])/);
+  if (!mainTimeArray)
+    return null;
+  const mainTimeValue = parseInt(mainTimeArray[1]);
+  const mainTimeUnit = mainTimeArray[2];
+  const mainTime = timeUnitToSeconds(mainTimeValue, mainTimeUnit);
+  let increment = 0;
+  if (tcParts.length >= 2)
+  {
+    const increment = tcParts[1].match(/([0-9]+)([smhd])/);
+    if (!increment)
+      return null;
+    const incrementValue = parseInt(increment[1]);
+    const incrementUnit = increment[2];
+    // Increment unit cannot be larger than main unit:
+    if (isLargerUnit(incrementUnit, mainTimeUnit))
+      return null;
+    increment = timeUnitToSeconds(incrementValue, incrementUnit);
+  }
+  return {mainTime:mainTime, increment:increment};
+}