108 lines
2.3 KiB
JavaScript
108 lines
2.3 KiB
JavaScript
'use strict';
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const logos = require('./load-logos')();
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function toArray(val) {
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if (val === undefined) {
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return [];
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} else if (Object(val) instanceof Array) {
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return val;
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} else {
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return [val];
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}
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}
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function isDataUri(s) {
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return s !== undefined && /^(data:)([^;]+);([^,]+),(.+)$/.test(s);
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}
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function hasPrefix(s, prefix) {
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return s !== undefined && s.slice(0, prefix.length) === prefix;
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}
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function prependPrefix(s, prefix) {
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if (s === undefined) {
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return undefined;
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} else if (hasPrefix(s, prefix)) {
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return s;
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} else {
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return prefix + s;
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}
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}
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function isValidStyle(style) {
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const validStyles = ['default', 'plastic', 'flat', 'flat-square', 'for-the-badge', 'social'];
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return style ? validStyles.indexOf(style) >= 0 : false;
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}
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function isSixHex (s){
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return s !== undefined && /^[0-9a-fA-F]{6}$/.test(s);
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}
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function makeColor(color) {
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if (isSixHex(color)) {
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return '#' + color;
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} else {
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return color;
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}
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}
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function makeColorB(defaultColor, overrides) {
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return makeColor(overrides.colorB || defaultColor);
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}
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function makeLabel(defaultLabel, overrides) {
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return overrides.label || defaultLabel;
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}
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function makeLogo(defaultNamedLogo, overrides) {
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const maybeDataUri = prependPrefix(overrides.logo, 'data:');
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const maybeNamedLogo = overrides.logo === undefined ? defaultNamedLogo : overrides.logo;
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if (isDataUri(maybeDataUri)) {
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return maybeDataUri;
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} else {
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return logos[maybeNamedLogo];
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}
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}
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// Generate the initial badge data. Pass the URL query parameters, which
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// override the default label.
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//
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// The following parameters are supported:
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//
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// - label
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// - style
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// - logo
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// - logoWidth
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// - link
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// - colorA
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// - colorB
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// - maxAge
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//
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// Note: maxAge is handled by cache(), not this function.
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function makeBadgeData(defaultLabel, overrides) {
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return {
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text: [makeLabel(defaultLabel, overrides), 'n/a'],
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colorscheme: 'lightgrey',
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template: isValidStyle(overrides.style) ? overrides.style : 'default',
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logo: makeLogo(undefined, overrides),
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logoWidth: +overrides.logoWidth,
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links: toArray(overrides.link),
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colorA: makeColor(overrides.colorA),
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colorB: makeColor(overrides.colorB),
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};
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}
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module.exports = {
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hasPrefix,
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isDataUri,
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isValidStyle,
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isSixHex,
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makeLabel,
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makeLogo,
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makeBadgeData,
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makeColor,
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makeColorB
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};
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