HOTFIX-FA-1393

[ramirezmorac2]

Add utility functions for local start and end of day Unix timestamp conversion in getUserActivityLogs

JIRA Ticket

PROJ-XXX

Description

[Describe your changes here]

Checklist

• Code review requested
• Tests completed
• Documentation updated

[Copilot]

Pull request overview

Adds frontend-side utilities to convert YYYY-MM-DD date strings into local start/end-of-day Unix timestamps, and uses those when calling the platform-admin user activity logs endpoint.

Changes:

• Introduces toLocalStartOfDayUnixTimestamp and toLocalEndOfDayUnixTimestamp helpers in the frontend API layer.
• Updates getUserActivityLogs to use those helpers instead of UTC (...Z) timestamp construction.

[Copilot]

toLocalStartOfDayUnixTimestamp / toLocalEndOfDayUnixTimestamp will return NaN if dateString isn’t exactly a YYYY-MM-DD value (e.g., unexpected format, partial input). That would serialize as start_date=NaN/end_date=NaN, and the backend currently does int(start_date) which will raise and return a 500. Consider validating/parsing defensively (e.g., strict regex + component range check) and either throw a client-side error or skip appending the query param when parsing fails.

Suggested change

	function toLocalStartOfDayUnixTimestamp(dateString: string): number {
	const [year, month, day] = dateString.split("-").map(Number);
	return Math.floor(new Date(year, month - 1, day, 0, 0, 0).getTime() / 1000);
	}
	function toLocalEndOfDayUnixTimestamp(dateString: string): number {
	const [year, month, day] = dateString.split("-").map(Number);
	function parseYmdDate(dateString: string): { year: number; month: number; day: number } {
	const match = /^(\d{4})-(\d{2})-(\d{2})$/.exec(dateString);
	if (!match) {
	throw new Error('Invalid date format. Expected YYYY-MM-DD.');
	}
	const year = Number(match[1]);
	const month = Number(match[2]);
	const day = Number(match[3]);
	if (!Number.isFinite(year) || !Number.isFinite(month) || !Number.isFinite(day)) {
	throw new Error('Invalid date components. Expected numeric year, month, and day.');
	}
	if (month < 1 || month > 12) {
	throw new Error('Invalid month in date. Expected 01-12.');
	}
	const daysInMonth = new Date(year, month, 0).getDate();
	if (day < 1 || day > daysInMonth) {
	throw new Error('Invalid day in date for the given month/year.');
	}
	return { year, month, day };
	}
	function toLocalStartOfDayUnixTimestamp(dateString: string): number {
	const { year, month, day } = parseYmdDate(dateString);
	return Math.floor(new Date(year, month - 1, day, 0, 0, 0).getTime() / 1000);
	}
	function toLocalEndOfDayUnixTimestamp(dateString: string): number {
	const { year, month, day } = parseYmdDate(dateString);

[Copilot]

This change alters the request query parameters by converting startDate/endDate to local-day Unix timestamps. There are Jest tests for other API functions under frontend/src/api/tests/; adding a focused test for getUserActivityLogs would help prevent regressions (e.g., verify the generated URL/query params for a fixed process.env.TZ, and that invalid date strings don’t send NaN).