1package eu.siacs.conversations.utils;
 2
 3import java.util.Calendar;
 4import java.util.Date;
 5
 6import eu.siacs.conversations.R;
 7import android.content.Context;
 8import android.text.format.DateFormat;
 9import android.text.format.DateUtils;
10
11public class UIHelper {
12	private static final int SHORT_DATE_FLAGS = DateUtils.FORMAT_SHOW_DATE
13			| DateUtils.FORMAT_NO_YEAR | DateUtils.FORMAT_ABBREV_ALL;
14	private static final int FULL_DATE_FLAGS = DateUtils.FORMAT_SHOW_TIME
15			| DateUtils.FORMAT_ABBREV_ALL | DateUtils.FORMAT_SHOW_DATE;
16
17	public static String readableTimeDifference(Context context, long time) {
18		return readableTimeDifference(context, time, false);
19	}
20
21	public static String readableTimeDifferenceFull(Context context, long time) {
22		return readableTimeDifference(context, time, true);
23	}
24
25	private static String readableTimeDifference(Context context, long time,
26			boolean fullDate) {
27		if (time == 0) {
28			return context.getString(R.string.just_now);
29		}
30		Date date = new Date(time);
31		long difference = (System.currentTimeMillis() - time) / 1000;
32		if (difference < 60) {
33			return context.getString(R.string.just_now);
34		} else if (difference < 60 * 2) {
35			return context.getString(R.string.minute_ago);
36		} else if (difference < 60 * 15) {
37			return context.getString(R.string.minutes_ago,
38					Math.round(difference / 60.0));
39		} else if (today(date)) {
40			java.text.DateFormat df = DateFormat.getTimeFormat(context);
41			return df.format(date);
42		} else {
43			if (fullDate) {
44				return DateUtils.formatDateTime(context, date.getTime(),
45						FULL_DATE_FLAGS);
46			} else {
47				return DateUtils.formatDateTime(context, date.getTime(),
48						SHORT_DATE_FLAGS);
49			}
50		}
51	}
52
53	private static boolean today(Date date) {
54		Calendar cal1 = Calendar.getInstance();
55		Calendar cal2 = Calendar.getInstance();
56		cal1.setTime(date);
57		cal2.setTimeInMillis(System.currentTimeMillis());
58		return cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
59				&& cal1.get(Calendar.DAY_OF_YEAR) == cal2
60						.get(Calendar.DAY_OF_YEAR);
61	}
62
63	public static String lastseen(Context context, long time) {
64		if (time == 0) {
65			return context.getString(R.string.never_seen);
66		}
67		long difference = (System.currentTimeMillis() - time) / 1000;
68		if (difference < 60) {
69			return context.getString(R.string.last_seen_now);
70		} else if (difference < 60 * 2) {
71			return context.getString(R.string.last_seen_min);
72		} else if (difference < 60 * 60) {
73			return context.getString(R.string.last_seen_mins,
74					Math.round(difference / 60.0));
75		} else if (difference < 60 * 60 * 2) {
76			return context.getString(R.string.last_seen_hour);
77		} else if (difference < 60 * 60 * 24) {
78			return context.getString(R.string.last_seen_hours,
79					Math.round(difference / (60.0 * 60.0)));
80		} else if (difference < 60 * 60 * 48) {
81			return context.getString(R.string.last_seen_day);
82		} else {
83			return context.getString(R.string.last_seen_days,
84					Math.round(difference / (60.0 * 60.0 * 24.0)));
85		}
86	}
87
88	public static int getColorForName(String name) {
89		if (name.isEmpty()) {
90			return 0xFF202020;
91		}
92		int colors[] = {0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
93				0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
94				0xFF795548, 0xFF607d8b};
95		return colors[(int) ((name.hashCode() & 0xffffffffl) % colors.length)];
96	}
97}