adds basic format to build each playlist

mt_clockwheel.py

@@ -10,6 +10,7 @@ channel = "newellijaytelevision"
 verbose = False
 from_date = datetime.date.today()
 to_date = datetime.date.today()
+playlist_duration = 6 * 60 * 60 # six hours, in seconds
 
 def main():
     parse_config()
@@ -19,7 +20,7 @@ def main():
         build_day(single_date)
 
 def parse_config():
-    global mediadir, playlistdir, channel, verbose, from_date, to_date
+    global mediadir, playlistdir, channel, verbose, from_date, to_date, playlist_duration
     parser = argparse.ArgumentParser(
         prog="mt_clockwheel",
         description="a simple clockwheel playlist generator for ffplayout",
@@ -32,6 +33,7 @@ def parse_config():
     parser.add_argument('-v', '--verbose', action='store_true', help='provide verbose output logging')
     parser.add_argument('-f', '--from', dest='from_date', help='first date to generate playlist for')
     parser.add_argument('-t', '--to', dest='to_date', help='last date to generate playlist for')
+    parser.add_argument('-l', '--length', dest='playlist_duration', help='duration (in seconds) for each playlist - if a factor of 24 * 60 * 60 then playlist will be duplicated to fill 24 hours')
 
     args = parser.parse_args()
     if args.verbose:
@@ -46,6 +48,8 @@ def parse_config():
         from_date = datetime.datetime.strptime(args.from_date, "%Y-%m-%d").date()
     if args.to_date:
         to_date = datetime.datetime.strptime(args.to_date, "%Y-%m-%d").date()
+    if args.playlist_duration:
+        playlist_duration = args.playlist_duration
 
     if verbose:
         print("Arguments parsed, config:")
@@ -56,8 +60,37 @@ def parse_config():
         print("to_date:", to_date)
 
 def build_day(this_date):
-    # todo
-    pass
+    d = {} # empty dict that will become our JSON output
+
+    d["channel"] = channel
+    d["date"] = this_date.strftime("%Y-%m-%d")
+    d["program"] = [] # empty list to populate with programs
+
+    total_time = 0
+
+    while total_time < playlist_duration:
+        entry, length = get_playlist_entry()
+        d["program"].append(entry)
+        total_time += length
+        if verbose:
+            print('  added program:', json.dumps(entry), length)
+
+    # TODO: see if playlist_duration is a factor of 24 * 60 * 60 and, if so, duplicate it to fill 24 hours
+
+    if verbose:
+        print("playlist json:", json.dumps(d))
+
+def get_playlist_entry():
+    entry = {
+        "in": 0,
+        "out": 300,
+        "duration": 300,
+        "source": "test.mp4"
+    }
+
+    length = entry["duration"]
+
+    return entry, length
 
 # generator function to yield single dates from a date range
 def daterange(start_date, end_date):