shakespeare.diy
99 lines
3.0 KiB
TypeScript
99 lines
3.0 KiB
TypeScript
import type { NostrEvent } from '@nostrify/nostrify';
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/**
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* Validate that an event is a proper DM event
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*/
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export function validateDMEvent(event: NostrEvent): boolean {
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// Must be kind 4 (NIP-04 DM)
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if (event.kind !== 4) return false;
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// Must have a 'p' tag
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const hasRecipient = event.tags?.some(([name]) => name === 'p');
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if (!hasRecipient) return false;
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// Must have content (even if encrypted)
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if (!event.content) return false;
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return true;
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}
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/**
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* Get the recipient pubkey from a DM event
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*/
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export function getRecipientPubkey(event: NostrEvent): string | undefined {
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return event.tags?.find(([name]) => name === 'p')?.[1];
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}
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/**
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* Get the conversation partner pubkey from a DM event
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* (the other person in the conversation, not the current user)
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*/
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export function getConversationPartner(event: NostrEvent, userPubkey: string): string | undefined {
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const isFromUser = event.pubkey === userPubkey;
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if (isFromUser) {
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// If we sent it, the partner is the recipient
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return getRecipientPubkey(event);
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} else {
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// If they sent it, the partner is the author
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return event.pubkey;
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}
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}
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/**
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* Format timestamp for display (matches Signal/WhatsApp/Telegram pattern)
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* Today: Show time (e.g., "2:45 PM")
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* Yesterday: "Yesterday"
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* This week: Day name (e.g., "Mon")
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* This year: Month and day (e.g., "Jan 15")
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* Older: Full date (e.g., "Jan 15, 2024")
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*/
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export function formatConversationTime(timestamp: number): string {
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const date = new Date(timestamp * 1000);
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const now = new Date();
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// Start of today (midnight)
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const todayStart = new Date(now.getFullYear(), now.getMonth(), now.getDate());
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// Start of yesterday
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const yesterdayStart = new Date(todayStart);
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yesterdayStart.setDate(yesterdayStart.getDate() - 1);
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// Start of this week (assuming week starts on Sunday, adjust if needed)
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const weekStart = new Date(todayStart);
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weekStart.setDate(weekStart.getDate() - weekStart.getDay());
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if (date >= todayStart) {
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// Today: Show time (e.g., "2:45 PM")
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return date.toLocaleTimeString(undefined, { hour: 'numeric', minute: '2-digit' });
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} else if (date >= yesterdayStart) {
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// Yesterday
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return 'Yesterday';
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} else if (date >= weekStart) {
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// This week: Show day name (e.g., "Monday")
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return date.toLocaleDateString(undefined, { weekday: 'short' });
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} else if (date.getFullYear() === now.getFullYear()) {
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// This year: Show month and day (e.g., "Jan 15")
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return date.toLocaleDateString(undefined, { month: 'short', day: 'numeric' });
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} else {
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// Older: Show full date (e.g., "Jan 15, 2024")
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return date.toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' });
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}
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}
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/**
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* Format timestamp as full date and time for tooltips
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* e.g., "Mon, Jan 15, 2024, 2:45 PM"
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*/
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export function formatFullDateTime(timestamp: number): string {
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const date = new Date(timestamp * 1000);
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return date.toLocaleString(undefined, {
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weekday: 'short',
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year: 'numeric',
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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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});
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}
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