| 1 | // Email validation
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| 2 | export function isValidEmail(email) {
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| 3 | const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
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| 4 | return emailRegex.test(email);
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| 5 | }
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| 6 |
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| 7 | // Password validation (minimum 6 characters)
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| 8 | export function isValidPassword(password) {
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| 9 | return password && password.length >= 6;
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| 10 | }
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| 11 |
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| 12 | import { parseISO, isValid, isFuture, isAfter } from 'date-fns';
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| 13 |
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| 14 | // Date validation
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| 15 | export function isValidDate(dateString) {
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| 16 | if (!dateString) return false;
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| 17 | try {
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| 18 | const date = parseISO(dateString);
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| 19 | return isValid(date);
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| 20 | } catch {
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| 21 | return false;
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| 22 | }
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| 23 | }
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| 24 |
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| 25 | // Check if date is not in the future
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| 26 | export function isNotFutureDate(dateString) {
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| 27 | if (!dateString) return false;
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| 28 | try {
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| 29 | const date = parseISO(dateString);
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| 30 | return isValid(date) && !isFuture(date);
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| 31 | } catch {
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| 32 | return false;
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| 33 | }
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| 34 | }
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| 35 |
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| 36 | // Validate date range
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| 37 | export function isValidDateRange(startDate, endDate) {
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| 38 | if (!startDate || !endDate) return false;
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| 39 | try {
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| 40 | const start = parseISO(startDate);
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| 41 | const end = parseISO(endDate);
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| 42 |
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| 43 | if (!isValid(start) || !isValid(end)) {
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| 44 | return false;
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| 45 | }
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| 46 |
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| 47 | return !isAfter(start, end);
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| 48 | } catch {
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| 49 | return false;
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| 50 | }
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| 51 | }
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| 52 |
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| 53 | // Sanitize string input
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| 54 | export function sanitizeString(str) {
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| 55 | if (typeof str !== 'string') return '';
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| 56 | return str.trim().slice(0, 500); // Limit to 500 chars
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| 57 | }
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| 58 |
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| 59 | // Validate required fields
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| 60 | export function validateRequiredFields(data, fields) {
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| 61 | const missing = [];
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| 62 |
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| 63 | for (const field of fields) {
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| 64 | if (data[field] === undefined || data[field] === null || data[field] === '') {
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| 65 | missing.push(field);
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| 66 | }
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| 67 | }
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| 68 |
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| 69 | return {
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| 70 | valid: missing.length === 0,
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| 71 | missing
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| 72 | };
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| 73 | }
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| 74 |
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| 75 | // Validate number in range
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| 76 | export function isInRange(value, min, max) {
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| 77 | const num = Number(value);
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| 78 | return !isNaN(num) && num >= min && num <= max;
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| 79 | }
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| 80 |
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| 81 | // Parse and validate integer
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| 82 | export function parseIntOrDefault(value, defaultValue = null) {
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| 83 | const parsed = parseInt(value, 10);
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| 84 | return isNaN(parsed) ? defaultValue : parsed;
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| 85 | }
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| 86 |
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| 87 | // Validate pagination parameters
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| 88 | export function validatePagination(page, limit) {
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| 89 | const validPage = Math.max(1, parseIntOrDefault(page, 1));
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| 90 | const validLimit = Math.min(100, Math.max(1, parseIntOrDefault(limit, 20)));
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| 91 |
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| 92 | return {
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| 93 | page: validPage,
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| 94 | limit: validLimit,
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| 95 | offset: (validPage - 1) * validLimit
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| 96 | };
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| 97 | }
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