Rework of MPV Commander into a new project

video_player.py

@@ -0,0 +1,65 @@
+import os
+import signal
+import subprocess
+import sqlite3
+import time
+import json
+
+get_active_video = r'''
+SELECT video_url, video_arguments FROM buttons
+WHERE is_active = 1
+LIMIT 1
+'''
+
+def play_video(previous_process, video_player_path, player_arguments, video_url):
+    if not previous_process is None:
+        os.killpg(os.getpgid(previous_process.pid), signal.SIGTERM)
+
+    return subprocess.Popen(
+        "{video_player} {arguments} {video_url}".format(
+            video_player = video_player_path,
+            arguments = player_arguments,
+            video_url = video_url
+        ),
+        stdout = subprocess.PIPE,
+        stderr = subprocess.PIPE,
+        shell = True,
+        preexec_fn = os.setsid
+    )
+
+def get_active_video_url(db):
+    cursor = db.execute(get_active_video)
+    return cursor.fetchall()[0]
+
+with open("config.json", "r") as config_file:
+    config_json = json.loads(config_file.read())
+
+current_process = None
+current_video = None
+db = sqlite3.connect(config_json["db_name"])
+
+while True:
+    if current_process is None:
+        current_video = get_active_video_url(db)
+
+        current_process = play_video(
+            current_process,
+            config_json["video_tool"],
+            current_video[0],
+            current_video[1]
+        )
+
+    active_video = get_active_video_url(db)
+
+    if current_video[0] != active_video[0]:
+        current_video = active_video
+
+        current_process = play_video(
+            current_process,
+            config_json["video_tool"],
+            current_video[0],
+            current_video[1]
+        )
+
+    time.sleep(1)
+