Share one DB connection per run + cleanups
Open one psycopg2 connection in main() and pass it through pull_data_and_log and log_to_database. Previously each landing-zone insert opened its own connection (3-4 handshakes per invocation); now everything runs in a single session and the three LZ writes share one transaction. Other cleanups: - Replace bare `except:` blocks around attraction-field reads with .get() - Drop the unused col_names computation in the old generic_query - Move module-level driver code under `if __name__ == "__main__":` - Parse park_opens / park_closes once instead of three times - Name columns explicitly in the park-hours query (was SELECT *) - Use `datestamp` (date column) for the today-freshness check rather than reading .date() off the open timestamp Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Claude Opus 4.7
+103
-106
@@ -1,12 +1,18 @@
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#!/usr/bin/env python3
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import json
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import logging
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import os
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from datetime import datetime, date, timedelta
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import json, requests, psycopg2, logging, sys
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import sys
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from datetime import date, datetime, timedelta
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import psycopg2
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import requests
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from psycopg2 import sql
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ATTRACTIONS_IO_ENDPOINT = "https://live-data.attractions.io/72f0ea9e-d196-508a-bee8-cce62c3228c7.json"
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DISCORD_WEBHOOK = os.environ.get('DISCORD_WEBHOOK', '').strip()
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LOG_PATH = os.environ.get('LOG_PATH', '/var/log/kuh-no-bowls.log')
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DB_PASSWORD = os.environ.get('DB_PASSWORD')
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if not DB_PASSWORD:
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@@ -19,64 +25,44 @@ db_params = {
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'password': DB_PASSWORD,
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'host': os.environ.get('DB_HOST', '192.168.88.9'),
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'port': os.environ.get('DB_PORT', '5432'),
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'options': '-c search_path=knoebels'
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'options': '-c search_path=knoebels',
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}
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LOG_PATH = os.environ.get('LOG_PATH', '/var/log/kuh-no-bowls.log')
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park_hours_query = """
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SELECT *
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PARK_HOURS_QUERY = """
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SELECT datestamp, _id, open, close, closed
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FROM knoebels."LZ_attractions_io_resort"
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ORDER BY datestamp DESC
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LIMIT 1
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"""
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API_TIME_FMT = "%Y-%m-%d %H:%M:%S"
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def send_to_discord(message):
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if not DISCORD_WEBHOOK:
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# Discord notifications disabled — skip silently.
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return
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data = {
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"content": message
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}
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try:
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response = requests.post(DISCORD_WEBHOOK, json=data)
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if response.status_code == 204:
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print("Message sent successfully.")
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else:
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print(f"Failed to send message. Status code: {response.status_code}, Response: {response.text}")
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response = requests.post(DISCORD_WEBHOOK, json={"content": message})
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if response.status_code != 204:
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logging.warning("Discord webhook returned %s: %s", response.status_code, response.text)
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except requests.exceptions.RequestException as e:
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print(f"Error sending message: {e}")
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logging.warning("Discord webhook error: %s", e)
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def log_to_database(table_name, data):
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with psycopg2.connect(**db_params) as conn:
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with conn.cursor() as cursor:
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columns = len(data[0])
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def log_to_database(conn, table_name, data):
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if not data:
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return
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query = sql.SQL("INSERT INTO {table} VALUES ({values})").format(
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table=sql.Identifier(table_name),
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values=sql.SQL(', ').join(sql.Placeholder() * columns)
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values=sql.SQL(', ').join(sql.Placeholder() * len(data[0])),
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)
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cursor.executemany(query, data)
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with conn.cursor() as cur:
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cur.executemany(query, data)
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conn.commit()
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def generic_query(q):
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ret = []
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with psycopg2.connect(**db_params) as conn:
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with conn.cursor() as cursor:
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cursor.execute(q)
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rows = cursor.fetchall()
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col_names = [desc[0] for desc in cursor.description]
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for row in rows:
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ret.append(row)
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return ret
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def fetch_webpage(url):
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HEADERS = {
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def fetch_attractions_payload():
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headers = {
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'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0',
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'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8',
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'Accept-Language': 'en-US,en;q=0.5',
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@@ -89,100 +75,111 @@ def fetch_webpage(url):
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'Sec-Fetch-Site': 'none',
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'Sec-Fetch-User': '?1',
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}
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try:
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response = requests.get(url, headers=HEADERS)
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if response.status_code == 200:
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response = requests.get(ATTRACTIONS_IO_ENDPOINT, headers=headers)
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response.raise_for_status()
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return response.json()
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else:
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return f"Error: {response.status_code} - Unable to fetch webpage"
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except Exception as e:
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return f"Error: {str(e)} - Unable to fetch webpage"
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def pull_data_and_log(log_park_hours):
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json_data = fetch_webpage(ATTRACTIONS_IO_ENDPOINT)
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def _attraction_opening_times(raw):
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if not raw:
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return None, None
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try:
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parsed = json.loads(raw)
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except (json.JSONDecodeError, TypeError):
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return None, None
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return parsed.get('start'), parsed.get('end')
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def pull_data_and_log(conn, log_park_hours):
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json_data = fetch_attractions_payload()
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logging.debug('Parsing park hours...')
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try:
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park_opens = json.loads(json_data['entities']['Resort']['records'][0]['OpeningTimes'])['start']
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park_closes = json.loads(json_data['entities']['Resort']['records'][0]['OpeningTimes'])['end']
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except KeyError as e:
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opening_raw = json_data['entities']['Resort']['records'][0]['OpeningTimes']
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resort_id = json_data['entities']['Resort']['records'][0]['_id']
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opening_times = json.loads(opening_raw)
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park_opens = opening_times['start']
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park_closes = opening_times['end']
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except (KeyError, IndexError, json.JSONDecodeError):
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logging.error('Unable to pull park hours. Is the park open today?')
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return
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logging.debug('Checking that park hours from API are actually occuring today...')
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if not datetime.today().date() == datetime.strptime(park_opens, "%Y-%m-%d %H:%M:%S").date():
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opens_dt = datetime.strptime(park_opens, API_TIME_FMT)
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closes_dt = datetime.strptime(park_closes, API_TIME_FMT)
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if datetime.today().date() != opens_dt.date():
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logging.error('API not returning park hours for today yet. Exiting...')
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return
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resort_data = [[datetime.now(), json_data['entities']['Resort']['records'][0]['_id'], park_opens, park_closes]]
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if log_park_hours:
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logging.info('Inserting park hours into LZ_attractions_io_resort...')
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log_to_database('LZ_attractions_io_resort', resort_data)
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if not (datetime.strptime(park_opens, "%Y-%m-%d %H:%M:%S") - timedelta(minutes=5)) <= datetime.now() <= (datetime.strptime(park_closes, "%Y-%m-%d %H:%M:%S") + timedelta(minutes=5)):
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log_to_database(conn, 'LZ_attractions_io_resort',
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[[datetime.now(), resort_id, park_opens, park_closes]])
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if not (opens_dt - timedelta(minutes=5)) <= datetime.now() <= (closes_dt + timedelta(minutes=5)):
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logging.info('Park not open now. Exiting...')
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return
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attraction_data = []
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for attraction in json_data['entities']['Item']['records']:
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try:
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isOperational = attraction['IsOperational']
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except:
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isOperational = None
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try:
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QueueTime = attraction['QueueTime']
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except:
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QueueTime = None
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try:
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QueueStatusMessage = attraction['QueueStatusMessage']
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except:
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QueueStatusMessage = None
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try:
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IsOpen = attraction['IsOpen']
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except:
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IsOpen = None
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try:
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OpeningTimes = json.loads(attraction['OpeningTimes'])
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start = OpeningTimes['start']
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end = OpeningTimes['end']
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except:
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start = None
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end = None
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start, end = _attraction_opening_times(attraction.get('OpeningTimes'))
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attraction_data.append([
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attraction['_id'],
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attraction.get('IsOperational'),
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attraction.get('QueueTime'),
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attraction.get('QueueStatusMessage'),
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attraction.get('IsOpen'),
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start,
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end,
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datetime.now(),
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])
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row = [attraction['_id'], isOperational, QueueTime, QueueStatusMessage, IsOpen, start, end, datetime.now()]
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attraction_data.append(row)
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queueline_data = []
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for queue in json_data['entities']['QueueLine']['records']:
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row = [datetime.now(), queue['_id'], queue['QueueTime']]
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queueline_data.append(row)
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queueline_data = [
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[datetime.now(), queue['_id'], queue['QueueTime']]
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for queue in json_data['entities']['QueueLine']['records']
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]
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logging.debug('Inserting rows into LZ_attractions_io...')
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log_to_database('LZ_attractions_io', attraction_data)
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log_to_database(conn, 'LZ_attractions_io', attraction_data)
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logging.debug('Inserting rows into LZ_attractions_io_queuetimes...')
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log_to_database('LZ_attractions_io_queuetimes', queueline_data)
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log_to_database(conn, 'LZ_attractions_io_queuetimes', queueline_data)
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logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s', level=logging.DEBUG, filename=LOG_PATH, filemode="a")
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logging.info('--------------------------------------------------------------------------------')
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def main():
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logging.basicConfig(
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format='%(asctime)s %(levelname)s %(message)s',
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level=logging.DEBUG,
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filename=LOG_PATH,
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filemode="a",
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)
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logging.info('-' * 80)
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logging.info('Fetching most recent park hours entry from DB...')
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park_hours_pull = generic_query(park_hours_query)[0]
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logging.debug('%s - %s', park_hours_pull[2], park_hours_pull[3])
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with psycopg2.connect(**db_params) as conn:
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with conn.cursor() as cur:
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cur.execute(PARK_HOURS_QUERY)
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row = cur.fetchone()
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if not row:
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logging.info('No park hours rows in DB — fetching from API')
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pull_data_and_log(conn, log_park_hours=True)
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return
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datestamp, _id, open_ts, close_ts, _closed = row
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logging.debug('%s - %s', open_ts, close_ts)
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if datestamp != date.today():
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logging.info('Park hours for today not in DB')
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pull_data_and_log(conn, log_park_hours=True)
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return
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if park_hours_pull[2].date() == date.today():
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logging.info('Park hours for today already in DB')
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park_opens = park_hours_pull[2]
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park_closes = park_hours_pull[3]
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if (park_opens - timedelta(minutes=5)) <= datetime.now() <= (park_closes + timedelta(minutes=5)):
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if (open_ts - timedelta(minutes=5)) <= datetime.now() <= (close_ts + timedelta(minutes=5)):
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logging.info('Park is open! Pulling data from API...')
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pull_data_and_log(False)
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pull_data_and_log(conn, log_park_hours=False)
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else:
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logging.info('Park not currently open. Exiting...')
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else:
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logging.info('Park hours for today not in DB')
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pull_data_and_log(True)
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if __name__ == '__main__':
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main()
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