Add prometheus telemetry

telegram_downloader_bot/telemetry.py

@@ -1,10 +1,32 @@
-import sentry_sdk
+from prometheus_client import Histogram, start_http_server
+
+DOWNLOAD_DURATION = Histogram(
+    'tt_download_time',
+    'Time taken to download a single tiktok video',
+    ['service'],
+    buckets=[0.1, 0.5, 1, 2, 5, 10, 30, 60, 120]
+)
+
+FILE_SIZE_BYTES = Histogram(
+    'downloaded_file_size_bytes',
+    'Size of the downloaded file in bytes',
+    ['service'],
+    buckets=[
+        1e6,    # 1 MB
+        5e6,    # 5 MB
+        10e6,   # 10 MB
+        25e6,   # 25 MB
+        50e6,   # 50 MB
+        100e6,  # 100 MB
+        200e6,  # 200 MB
+        500e6,  # 500 MB
+        1e9     # 1 GB
+    ]
+)
 
 
 def init_telemetry() -> None:
-    sentry_sdk.init(
-        dsn="https://12d7a075d483fc133cde0ed82e72ac45@o4508071875313664.ingest.de.sentry.io/4508075566694480",  # noqa: E501
-        traces_sample_rate=1.0,
-        profiles_sample_rate=1.0,
-        enable_tracing=True
-    )
+    """
+    Initialize telemetry for the bot.
+    """
+    start_http_server(8000)