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app/src/main/java/utils/DateUtils.kt

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+package utils
+
+import android.content.Context
+import android.text.format.DateFormat
+import it.danieleverducci.lunatracker.R
+import java.util.Date
+
+class DateUtils {
+    companion object {
+
+        /**
+         * Formats the provided unix timestamp in a string like "3 hours, 26 minutes ago)
+         */
+        fun formatTimeAgo(context: Context, unixTime: Long): String {
+            val secondsDiff = (System.currentTimeMillis() / 1000) - unixTime
+            val minutesDiff = secondsDiff / 60
+
+            if (minutesDiff < 1)
+                return context.getString(R.string.now)
+
+            val hoursAgo = (secondsDiff / (60 * 60)).toInt()
+            val minutesAgo = (minutesDiff % 60).toInt()
+
+            if (hoursAgo > 24)
+                return DateFormat.getDateFormat(context).format(Date(unixTime*1000)) + "\n" +
+                        DateFormat.getTimeFormat(context).format(Date(unixTime*1000))
+
+            var formattedTime = StringBuilder()
+            if (hoursAgo > 0) {
+                formattedTime.append(hoursAgo).append(" ")
+                if (hoursAgo.toInt() == 1)
+                    formattedTime.append(context.getString(R.string.hour_ago))
+                else
+                    formattedTime.append(context.getString(R.string.hours_ago))
+            }
+            if (minutesAgo > 0) {
+                if (formattedTime.isNotEmpty())
+                    formattedTime.append(", ")
+                formattedTime.append(minutesAgo).append(" ")
+                if (minutesAgo.toInt() == 1)
+                    formattedTime.append(context.getString(R.string.minute_ago))
+                else
+                    formattedTime.append(context.getString(R.string.minutes_ago))
+            }
+            return formattedTime.toString()
+        }
+    }
+}