82 lines
2.3 KiB
JavaScript
82 lines
2.3 KiB
JavaScript
/* eslint-disable func-names, no-return-assign, @gitlab/require-i18n-strings */
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export default class NewBranchForm {
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constructor(form) {
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this.validate = this.validate.bind(this);
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this.branchNameError = form.querySelector('.js-branch-name-error');
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this.name = form.querySelector('.js-branch-name');
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this.setupRestrictions();
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this.addBinding();
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this.init();
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}
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addBinding() {
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this.name.addEventListener('blur', this.validate);
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}
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init() {
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if (this.name != null && this.name.value.length > 0) {
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const event = new CustomEvent('blur');
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this.name.dispatchEvent(event);
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}
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}
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setupRestrictions() {
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const startsWith = {
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pattern: /^(\/|\.)/g,
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prefix: "can't start with",
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conjunction: 'or',
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};
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const endsWith = {
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pattern: /(\/|\.|\.lock)$/g,
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prefix: "can't end in",
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conjunction: 'or',
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};
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const invalid = {
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pattern: /(\s|~|\^|:|\?|\*|\[|\\|\.\.|@\{|\/{2,}){1}/g,
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prefix: "can't contain",
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conjunction: ', ',
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};
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const single = {
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pattern: /^@+$/g,
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prefix: "can't be",
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conjunction: 'or',
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};
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return (this.restrictions = [startsWith, invalid, endsWith, single]);
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}
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validate() {
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const { indexOf } = [];
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this.branchNameError.innerHTML = '';
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const unique = function (values, value) {
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if (indexOf.call(values, value) === -1) {
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values.push(value);
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}
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return values;
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};
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const formatter = function (values, restriction) {
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const formatted = values.map((value) => {
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switch (false) {
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case !/\s/.test(value):
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return 'spaces';
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case !/\/{2,}/g.test(value):
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return 'consecutive slashes';
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default:
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return `'${value}'`;
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}
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});
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return `${restriction.prefix} ${formatted.join(restriction.conjunction)}`;
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};
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const validator = (errors, restriction) => {
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const matched = this.name.value.match(restriction.pattern);
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if (matched) {
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return errors.concat(formatter(matched.reduce(unique, []), restriction));
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}
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return errors;
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};
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const errors = this.restrictions.reduce(validator, []);
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if (errors.length > 0) {
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this.branchNameError.textContent = errors.join(', ');
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}
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}
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}
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