Print summary of recent backups

src/borgmanager/summary/summary.py

@@ -1,5 +1,6 @@
 from borgmanager.database.object import Repo, Archive, Cache
 from math import floor, pow, log
+from datetime import datetime, timedelta
 
 
 class Summary(object):
@@ -26,9 +27,42 @@ class Summary(object):
                              f" ago\n"
             return_string += f"\t> Un/Compressed size: {self.bytes_to_string(cache.unique_size)}" \
                              f"/{self.bytes_to_string(cache.unique_csize)}\n"
+            return_string += f"\t> {self.get_backup_line(repo.primary_key)}\n"
             return_string += "\n"
         return return_string.strip()
 
+    def get_backup_line(self, repo_id):
+        units = []
+        units.append(['H' if h else '_' for h in self.get_archive_hours(repo_id, 24)])
+        units.append(['D' if d else '_' for d in self.get_archive_days(repo_id, 7)])
+        units.append(['W' if w else '_' for w in self.get_archive_units(repo_id, 5, 7)])
+        units.append(['M' if m else '_' for m in self.get_archive_units(repo_id, 12, 30)])
+
+        return f"[{']['.join([''.join(u) for u in units])}]"
+
+    def get_archive_hours(self, repo_id, n=12):
+        hours = []
+        for hours_ago in range(n):
+            exists = self.db.archive_conn.archive_on_hour(repo_id, datetime.today() - timedelta(hours=hours_ago))
+            hours.append(exists)
+        return hours
+
+    def get_archive_days(self, repo_id, n=7):
+        days = []
+        for days_ago in range(n):
+            exists = self.db.archive_conn.archive_on_date(repo_id, datetime.today() - timedelta(days=days_ago))
+            days.append(exists)
+        return days
+
+    def get_archive_units(self, repo_id, n: int, dmult: int):
+        weeks = []
+        for weeks_ago in range(0, n):
+            last_day = datetime.today() - timedelta(days=weeks_ago * dmult)
+            first_day = datetime.today() - timedelta(days=(weeks_ago * dmult) + dmult - 1)
+            exists = self.db.archive_conn.between_dates(repo_id, first_day, last_day)
+            weeks.append(exists)
+        return weeks
+
     @staticmethod
     def seconds_to_string(seconds: int, detail='hour', short=False):
         seconds = int(seconds)