const assert = require('assert');
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const is = require('is-type-of');
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exports.getProperties = (filepath, { caseStyle }) => {
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// if caseStyle is function, return the result of function
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if (is.function(caseStyle)) {
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const result = caseStyle(filepath);
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assert(is.array(result), `caseStyle expect an array, but got ${result}`);
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return result;
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}
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// use default camelize
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return this.defaultCamelize(filepath, caseStyle);
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}
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exports.defaultCamelize = (filepath, caseStyle) => {
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const properties = filepath.substring(0, filepath.lastIndexOf('.')).split('/');
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return properties.map(property => {
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if (!/^[a-z][a-z0-9_-]*$/i.test(property)) {
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throw new Error(`${property} is not match 'a-z0-9_-' in ${filepath}`);
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}
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property = property.replace(/[_-][a-z]/ig, s => s.substring(1).toUpperCase());
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let first = property[0];
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switch (caseStyle) {
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case 'lower':
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first = first.toLowerCase();
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break;
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case 'upper':
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first = first.toUpperCase();
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break;
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case 'camel':
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default:
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}
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return first + property.substring(1);
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});
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}
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