Update user color to be a more customizable hsl color with constant saturation and lightness

webroot/js/utils/user-colors.js

@@ -1,88 +1,15 @@
-export function getHashFromString(string) {
-  let hash = 1;
-  for (let i = 0; i < string.length; i++) {
-    const codepoint = string.charCodeAt(i);
-    hash *= codepoint;
-  }
-
-  return Math.abs(hash);
-}
-
-export function digitsFromNumber(number) {
-  const numberString = number.toString();
-  let digits = [];
-
-  for (let i = 0, len = numberString.length; i < len; i += 1) {
-    digits.push(numberString.charAt(i));
-  }
-
-  return digits;
-}
-
-// function avatarFromString(string) {
-//   const hash = getHashFromString(string);
-//   const digits = digitsFromNumber(hash);
-//   // eslint-disable-next-line
-//   const sum = digits.reduce(function (total, number) {
-//     return total + number;
-//   });
-//   const sumDigits = digitsFromNumber(sum);
-//   const first = sumDigits[0];
-//   const second = sumDigits[1];
-//   let filename = '/avatars/';
-
-//   // eslint-disable-next-line
-//   if (first == 1 || first == 2) {
-//     filename += '1' + second.toString();
-//     // eslint-disable-next-line
-//   } else if (first == 3 || first == 4) {
-//     filename += '2' + second.toString();
-//     // eslint-disable-next-line
-//   } else if (first == 5 || first == 6) {
-//     filename += '3' + second.toString();
-//     // eslint-disable-next-line
-//   } else if (first == 7 || first == 8) {
-//     filename += '4' + second.toString();
-//   } else {
-//     filename += '5';
-//   }
-
-//   return filename + '.svg';
-// }
-
-export function colorForString(str) {
-  let hash = 0;
-  for (let i = 0; i < str.length; i++) {
-    // eslint-disable-next-line
-    hash = str.charCodeAt(i) + ((hash << 5) - hash);
-  }
-  let colour = '#';
-  for (let i = 0; i < 3; i++) {
-    // eslint-disable-next-line
-    let value = (hash >> (i * 8)) & 0xff;
-    colour += ('00' + value.toString(16)).substr(-2);
-  }
-  return colour;
-}
-
 export function messageBubbleColorForString(str) {
   let hash = 0;
   for (let i = 0; i < str.length; i++) {
     // eslint-disable-next-line
     hash = str.charCodeAt(i) + ((hash << 5) - hash);
   }
-  let color = '#';
+
-  for (let i = 0; i < 3; i++) {
+  // Tweak these to adjust the result of the color
-    // eslint-disable-next-line
+  const saturation = 70;
-    let value = (hash >> (i * 8)) & 0xff;
+  const lightness = 50;
-    color += ('00' + value.toString(16)).substr(-2);
+  const alpha = 1.0;
-  }
+  const hue = parseInt(Math.abs(hash), 16) % 300;
-  // Convert to RGBA
+
-  let result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(color);
+  return `hsla(${hue}, ${saturation}%, ${lightness}%, ${alpha})`;
-  let rgb = result ? {
-    r: parseInt(result[1], 16),
-    g: parseInt(result[2], 16),
-    b: parseInt(result[3], 16),
-  } : null;
-  return 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ', 0.4)';
 }