mirror of
https://github.com/MODSetter/SurfSense.git
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84 lines
2.7 KiB
TypeScript
84 lines
2.7 KiB
TypeScript
import {
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differenceInDays,
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differenceInMinutes,
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format,
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isThisYear,
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isToday,
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isTomorrow,
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} from "date-fns";
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/**
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* Format a date string as a human-readable relative time
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* - < 1 min: "Just now"
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* - < 60 min: "15 minutes ago"
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* - < 24 hours: "21 hours ago"
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* - < 7 days: "2 days ago"
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* - Older this year: "Jan 15"
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* - Older: "Jan 15, 2026"
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*/
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export function formatRelativeDate(dateString: string): string {
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const date = new Date(dateString);
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const now = new Date();
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const minutesAgo = Math.max(0, differenceInMinutes(now, date));
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const hoursAgo = Math.floor(minutesAgo / 60);
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const daysAgo = Math.floor(hoursAgo / 24);
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if (minutesAgo < 1) return "Just now";
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if (minutesAgo < 60) return `${minutesAgo} minute${minutesAgo === 1 ? "" : "s"} ago`;
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if (hoursAgo < 24) return `${hoursAgo} hour${hoursAgo === 1 ? "" : "s"} ago`;
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if (daysAgo < 7) return `${daysAgo} day${daysAgo === 1 ? "" : "s"} ago`;
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if (isThisYear(date)) return format(date, "MMM d");
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return format(date, "MMM d, yyyy");
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}
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/**
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* Format a future date string as a human-readable countdown.
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* - < 1 min: "Any moment"
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* - < 60 min: "in 15m"
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* - Today: "Today, 2:30 PM"
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* - Tomorrow: "Tomorrow, 2:30 PM"
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* - < 7 days: "in 3d"
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* - This year: "May 30, 2:30 PM"
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* - Older: "Jan 15, 2027"
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*
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* Mirrors {@link formatRelativeDate} but for moments strictly after now.
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* Falls back to the past-relative formatter if the timestamp is not in
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* the future (defensive — guards against stale "next_fire_at" values).
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*/
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export function formatRelativeFutureDate(dateString: string): string {
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const date = new Date(dateString);
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const now = new Date();
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const minutesAhead = differenceInMinutes(date, now);
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const daysAhead = differenceInDays(date, now);
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if (minutesAhead <= 0) return formatRelativeDate(dateString);
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if (minutesAhead < 1) return "Any moment";
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if (minutesAhead < 60) return `in ${minutesAhead}m`;
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if (isToday(date)) return `Today, ${format(date, "h:mm a")}`;
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if (isTomorrow(date)) return `Tomorrow, ${format(date, "h:mm a")}`;
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if (daysAhead < 7) return `in ${daysAhead}d`;
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if (isThisYear(date)) return format(date, "MMM d, h:mm a");
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return format(date, "MMM d, yyyy");
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}
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/**
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* Format a thread's last-updated timestamp for the chats sidebars.
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* Example: "Mar 23, 2026 at 4:30 PM"
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*/
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export function formatThreadTimestamp(dateString: string): string {
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return format(new Date(dateString), "MMM d, yyyy 'at' h:mm a");
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}
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/**
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* Format a chat message timestamp for inline display under a bubble.
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* Locale-aware, 12-hour clock. Example: "Jul 13, 10:42 PM".
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*/
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export function formatMessageTimestamp(date: Date): string {
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return date.toLocaleDateString(undefined, {
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month: "short",
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day: "numeric",
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hour: "numeric",
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minute: "2-digit",
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hour12: true,
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});
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}
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