import { format, formatDistanceToNow, isToday, isYesterday, isThisWeek, isThisYear } from 'date-fns';

export const formatMessageTime = (date) => {
  const messageDate = new Date(date);
  
  if (isToday(messageDate)) {
    return format(messageDate, 'HH:mm');
  } else if (isYesterday(messageDate)) {
    return `Yesterday ${format(messageDate, 'HH:mm')}`;
  } else if (isThisWeek(messageDate)) {
    return format(messageDate, 'EEE HH:mm');
  } else if (isThisYear(messageDate)) {
    return format(messageDate, 'MMM d, HH:mm');
  } else {
    return format(messageDate, 'MMM d, yyyy HH:mm');
  }
};

export const formatConversationTime = (date) => {
  const messageDate = new Date(date);
  
  if (isToday(messageDate)) {
    return format(messageDate, 'HH:mm');
  } else if (isYesterday(messageDate)) {
    return 'Yesterday';
  } else if (isThisWeek(messageDate)) {
    return format(messageDate, 'EEE');
  } else if (isThisYear(messageDate)) {
    return format(messageDate, 'MMM d');
  } else {
    return format(messageDate, 'MM/dd/yy');
  }
};

export const formatRelativeTime = (date) => {
  return formatDistanceToNow(new Date(date), { addSuffix: true });
};

export const formatDateHeader = (date) => {
  const messageDate = new Date(date);
  
  if (isToday(messageDate)) {
    return 'Today';
  } else if (isYesterday(messageDate)) {
    return 'Yesterday';
  } else if (isThisWeek(messageDate)) {
    return format(messageDate, 'EEEE');
  } else if (isThisYear(messageDate)) {
    return format(messageDate, 'MMMM d');
  } else {
    return format(messageDate, 'MMMM d, yyyy');
  }
};