434 lines
18 KiB
Python
434 lines
18 KiB
Python
import io
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import math
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from datetime import datetime
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from typing import Optional
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import requests
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import yaml
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from mastodon import Mastodon
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from PIL import Image, ImageDraw, ImageFont
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from sqlalchemy import create_engine, select
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from sqlalchemy.exc import NoResultFound
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from sqlalchemy.orm import DeclarativeBase, Mapped, Session, mapped_column
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from staticmap import Polygon, StaticMap
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post_datetime_format = "%b %e %l:%M %p"
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scl_events_url = "https://utilisocial.io/datacapable/v2/p/scl/map/events"
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scl_events_response = requests.get(scl_events_url)
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try:
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scl_events = scl_events_response.json()
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except requests.JSONDecodeError:
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print("JSON could not be loaded from SCL API")
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raise
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config = yaml.safe_load(open("config.yml"))
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stadiamaps_api_key = config["stadiamaps"]["api_key"]
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nominatim_url = config["nominatim"]["api_base_url"]
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mastodon = Mastodon(
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client_id=config["mastodon"]["client_id"],
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client_secret=config["mastodon"]["client_secret"],
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access_token=config["mastodon"]["access_token"],
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api_base_url=config["mastodon"]["api_base_url"],
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)
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class AttribStaticMap(StaticMap, object):
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def __init__(self, *args, **kwargs):
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self.attribution = "© Stadia Maps © OpenMapTiles © OpenStreetMap"
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super(AttribStaticMap, self).__init__(*args, **kwargs)
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def _draw_features(self, image):
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super(AttribStaticMap, self)._draw_features(image)
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txt = Image.new("RGBA", image.size, (255, 255, 255, 0))
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# get a font
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# fnt = ImageFont.truetype('FreeMono.ttf', 12)
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fnt = ImageFont.load_default()
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# get a drawing context
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d = ImageDraw.Draw(txt)
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textSize = fnt.getbbox(self.attribution)
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textPosition = (image.size[0] - textSize[2], image.size[1] - textSize[3])
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offset = 2
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options = {"fill": (255, 255, 255, 180)}
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d.rectangle(
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[
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(textPosition[0] - (2 * offset), textPosition[1] - (2 * offset)),
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(
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textSize[2] + textPosition[0] + (2 * offset),
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textSize[3] + textPosition[1] + (2 * offset),
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),
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],
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**options,
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)
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# draw text, full opacity
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d.text(
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(textPosition[0] - offset, textPosition[1] - offset),
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self.attribution,
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font=fnt,
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fill="black",
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)
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image.paste(txt, (0, 0), txt)
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def classify_event_size(num_people: int) -> dict[str, str, bool]:
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if num_people < 250:
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return {
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"size": "Small",
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"outage_color": "#F97316",
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"is_postable": False,
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}
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elif event["numPeople"] < 1000:
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return {
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"size": "Medium",
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"outage_color": "#EF4444",
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"is_postable": True,
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}
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else:
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return {
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"size": "Large",
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"outage_color": "#991B1B",
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"is_postable": True,
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}
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class Base(DeclarativeBase):
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pass
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class SclOutage(Base):
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__tablename__ = "scl_outages"
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scl_outage_id: Mapped[int] = mapped_column(primary_key=True, unique=True)
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outage_user_id: Mapped[str] = mapped_column()
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most_recent_post_id: Mapped[Optional[str]] = mapped_column()
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initial_post_id: Mapped[Optional[str]] = mapped_column()
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map_media_post_id: Mapped[Optional[str]] = mapped_column()
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last_updated_time: Mapped[datetime] = mapped_column()
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estimated_restoration_time: Mapped[datetime] = mapped_column()
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cause: Mapped[str] = mapped_column()
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status: Mapped[Optional[str]] = mapped_column()
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no_longer_in_response_time: Mapped[Optional[datetime]] = mapped_column()
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start_time: Mapped[datetime] = mapped_column()
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num_people: Mapped[int] = mapped_column()
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max_num_people: Mapped[int] = mapped_column()
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def __repr__(self) -> str:
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return f"SclOutage(scl_outage_id={self.scl_outage_id!r}, most_recent_post_id={self.most_recent_post_id!r}, initial_post_id={self.initial_post_id!r}, map_media_post_id={self.map_media_post_id!r}, last_updated_time={self.last_updated_time!r}, no_longer_in_response_time={self.no_longer_in_response_time!r}), start_time={self.start_time!r}), num_people={self.num_people!r}), max_num_people={self.max_num_people!r})"
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engine = create_engine("sqlite:///scl.db", echo=True)
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Base.metadata.create_all(engine)
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with Session(engine) as session:
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for event in scl_events:
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print("Processing outage with Internal ID {}".format(event["id"]))
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start_time = datetime.fromtimestamp(event["startTime"] / 1000)
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last_updated_time = datetime.fromtimestamp(event["lastUpdatedTime"] / 1000)
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estimated_restoration_time = datetime.fromtimestamp(event["etrTime"] / 1000)
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lookup_statement = select(SclOutage).where(
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SclOutage.scl_outage_id == event["id"]
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)
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lookup_result = session.scalars(lookup_statement)
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event_class = classify_event_size(event["numPeople"])
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if "status" in event:
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status = event["status"]
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else:
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status = None
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hashtag_string = "#SeattleCityLightOutage #SCLOutage #SCLOutage{}".format(
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event["identifier"]
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)
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try:
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existing_record = lookup_result.one()
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updated_properties = []
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updated_entries = []
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if estimated_restoration_time != existing_record.estimated_restoration_time:
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existing_record.estimated_restoration_time = estimated_restoration_time
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updated_properties.append("estimated restoration")
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updated_entries.append(
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"Est. Restoration: {}".format(
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estimated_restoration_time.strftime(post_datetime_format)
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)
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)
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if event["cause"] != existing_record.cause:
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existing_record.cause = event["cause"]
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updated_properties.append("cause")
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updated_entries.append("Cause: {}".format(event["cause"]))
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previous_event_class = classify_event_size(existing_record.num_people)
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if event_class["size"] != previous_event_class["size"]:
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updated_properties.append("outage size")
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updated_entries.append("Outage Size: {}".format(event_class["size"]))
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if status != existing_record.status:
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existing_record.status = status
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updated_properties.append("status")
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updated_entries.append("Status: {}".format(status))
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if existing_record.num_people != event["numPeople"]:
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existing_record.num_people = event["numPeople"]
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if existing_record.max_num_people < event["numPeople"]:
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# Used to determine the maximum number of people affected by this outage, to determine if it's worth posting about
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existing_record.max_num_people = event["numPeople"]
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max_event_class = classify_event_size(existing_record.max_num_people)
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if updated_properties:
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updated_properties.sort()
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updated_entries.sort()
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if len(updated_properties) == 1:
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updated_entries.insert(
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0,
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"The {} of this outage has been updated.\n".format(
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updated_properties[0]
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),
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)
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else:
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# TODO: this currently just smashes all of the properties together with commas, it'd be nice to make it actually format it like a sentence
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updated_entries.insert(
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0,
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"The {} of this outage have been updated.\n".format(
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", ".join(updated_properties)
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),
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)
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updated_entries.append("")
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updated_entries.append(hashtag_string)
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if max_event_class["is_postable"] and existing_record.initial_post_id:
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post_result = mastodon.status_post(
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status="\n".join(updated_entries),
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in_reply_to_id=existing_record.most_recent_post_id,
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visibility="public",
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language="en",
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)
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existing_record.most_recent_post_id = post_result["id"]
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elif max_event_class["is_postable"]:
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print(
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"This event would have been able to be posted, but someone didn't write the logic to do that for events that scaled up."
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)
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session.commit()
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except NoResultFound:
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print("Existing record not found")
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post_id = None
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map_media_post_id = None
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if not event_class["is_postable"]:
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print(
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"Outage is {} considered postable, will not post".format(
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event_class["size"]
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)
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)
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else:
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# Fallback location from the SCL API in case one couldn't be reverse geocoded
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area_text = event["city"]
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try:
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map = AttribStaticMap(
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512,
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512,
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url_template="https://tiles.stadiamaps.com/tiles/outdoors/{z}/{x}/{y}.png?api_key="
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+ stadiamaps_api_key,
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)
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assert event["polygons"]["type"] == "polygon"
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for ring in event["polygons"]["rings"]:
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polygon = Polygon(
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ring,
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# Appending 7F to the fill_color makes it 50% transparent
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fill_color="{}7F".format(event_class["outage_color"]),
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outline_color=event_class["outage_color"],
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simplify=True,
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)
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map.add_polygon(polygon)
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map_image = map.render()
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try:
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def num2deg(xtile, ytile, zoom):
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n = 1 << zoom
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lon_deg = xtile / n * 360.0 - 180.0
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lat_rad = math.atan(
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math.sinh(math.pi * (1 - 2 * ytile / n))
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)
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lat_deg = math.degrees(lat_rad)
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return lat_deg, lon_deg
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center_lat_lon = num2deg(map.x_center, map.y_center, map.zoom)
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# Check to make sure the calculated lat and lon are sane enough
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# NW Corner
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assert center_lat_lon[0] < 48 and center_lat_lon[1] > -122.6
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# SE Corner
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assert center_lat_lon[0] > 47.2 and center_lat_lon[1] < -122
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# Zoom level 17 ensures that we won't get any building/POI names, just street names
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geocode_url = "{nominatim_url}/reverse?lat={lat}&lon={lon}&format=geocodejson&zoom=17".format(
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nominatim_url=nominatim_url,
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lat=center_lat_lon[0],
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lon=center_lat_lon[1],
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)
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geocode_headers = {
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"User-Agent": "seattlecitylight-mastodon-bot"
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}
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geocode_response = requests.get(
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geocode_url, headers=geocode_headers
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)
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try:
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geocode = geocode_response.json()
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except requests.JSONDecodeError:
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print("JSON could not be loaded from nominatim API")
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raise
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if (
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geocode["features"][0]["properties"]["geocoding"]["city"]
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!= "Seattle"
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):
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city_not_seattle_text = " of {}".format(
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geocode["features"][0]["properties"]["geocoding"][
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"city"
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]
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)
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else:
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city_not_seattle_text = ""
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street = geocode["features"][0]["properties"]["geocoding"][
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"name"
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]
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if (
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"locality"
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in geocode["features"][0]["properties"]["geocoding"]
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and event_class["size"] != "Large"
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):
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locality = geocode["features"][0]["properties"][
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"geocoding"
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]["locality"]
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if locality == "Uptown":
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locality = "Lower Queen Anne"
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alt_text = "A map showing the location of the outage, centered around {} in the {} area{}.".format(
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street,
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locality,
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city_not_seattle_text,
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)
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area_text = "the {} area{}".format(
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locality, city_not_seattle_text
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)
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elif (
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"district"
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in geocode["features"][0]["properties"]["geocoding"]
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):
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alt_text = "A map showing the location of the outage, centered around {} in the {} area{}.".format(
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street,
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geocode["features"][0]["properties"]["geocoding"][
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"district"
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],
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city_not_seattle_text,
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)
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area_text = "the {} area{}".format(
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geocode["features"][0]["properties"]["geocoding"][
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"district"
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],
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city_not_seattle_text,
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)
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else:
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alt_text = "A map showing the location of the outage, centered around {} in {}.".format(
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street,
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geocode["features"][0]["properties"]["geocoding"][
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"city"
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],
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)
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area_text = geocode["features"][0]["properties"][
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"geocoding"
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]["city"]
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except Exception:
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alt_text = "A map showing the location of the outage."
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with io.BytesIO() as map_image_file:
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map_image.save(map_image_file, format="PNG", optimize=True)
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map_media_post = mastodon.media_post(
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map_image_file.getvalue(),
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mime_type="image/png",
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description=alt_text,
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)
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map_media_post_id = map_media_post["id"]
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except Exception as e:
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print(e)
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print(
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"Ran into an issue with generating/uploading the map. Will post without it."
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)
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map_media_post = None
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post_text = """Seattle City Light is reporting a {} outage in {}.
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Start Date: {}
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Est. Restoration: {}
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Cause: {}
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{}""".format(
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event_class["size"].lower(),
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area_text,
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start_time.strftime(post_datetime_format),
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estimated_restoration_time.strftime(post_datetime_format),
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event["cause"],
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hashtag_string,
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)
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print(
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"Posting the following to Mastodon, with a post length of {}:\n{}".format(
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len(post_text), post_text
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)
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)
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post_result = mastodon.status_post(
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status=post_text,
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media_ids=map_media_post,
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visibility="public",
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language="en",
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)
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post_id = post_result["id"]
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new_outage_record = SclOutage(
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scl_outage_id=event["id"],
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outage_user_id=event["identifier"],
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most_recent_post_id=post_id,
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initial_post_id=post_id,
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map_media_post_id=map_media_post_id,
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last_updated_time=last_updated_time,
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estimated_restoration_time=estimated_restoration_time,
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cause=event["cause"],
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status=status,
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start_time=start_time,
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num_people=event["numPeople"],
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max_num_people=event["numPeople"],
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)
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session.add(new_outage_record)
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session.commit()
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lookup_active_outages_statement = (
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select(SclOutage)
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.where(SclOutage.no_longer_in_response_time == None)
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.where(SclOutage.most_recent_post_id != None)
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)
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for active_outage in session.scalars(lookup_active_outages_statement):
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if (
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not any(event["id"] == active_outage.scl_outage_id for event in scl_events)
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and event
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):
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# Event ID no longer exists in response
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post_result = mastodon.status_post(
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status="This outage is reported to be resolved.\n\n#SeattleCityLightOutage #SCLOutage #SCLOutage{}".format(
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active_outage.outage_user_id
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),
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in_reply_to_id=active_outage.most_recent_post_id,
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visibility="public",
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language="en",
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)
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active_outage.most_recent_post_id = post_result["id"]
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active_outage.no_longer_in_response_time = datetime.now()
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session.commit()
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