Add reverse geocoding
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1 changed files with 113 additions and 21 deletions
134
scl.py
134
scl.py
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@ -1,8 +1,10 @@
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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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@ -20,11 +22,15 @@ 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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mastodon = Mastodon(access_token="scl_bot_mastodon.secret")
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with open("stadiamaps_api_key.secret", "r+") as stadiamaps_api_key_file:
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# Reading from a file
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stadiamaps_api_key = stadiamaps_api_key_file.read()
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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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@ -181,22 +187,7 @@ with Session(engine) as session:
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# If the outage becomes medium/large, it'll then be posted as a new outage on the next run
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print("Outage is small, will not post")
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continue
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print("Existing record not found")
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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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outage_size.lower(),
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event["city"],
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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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try:
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map = AttribStaticMap(
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@ -212,10 +203,92 @@ Cause: {}
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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(math.sinh(math.pi * (1 - 2 * ytile / n)))
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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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# 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 = {"User-Agent": "seattlecitylight-mastodon-bot"}
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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"]["city"]
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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"]["name"]
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if "locality" in geocode["features"][0]["properties"]["geocoding"]:
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locality = geocode["features"][0]["properties"]["geocoding"]
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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" 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"]["city"],
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)
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area_text = geocode["features"][0]["properties"]["geocoding"][
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"city"
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]
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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(), mime_type="image/png"
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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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except Exception as e:
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@ -225,6 +298,25 @@ Cause: {}
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)
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map_media_post = None
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# Fallback location from the SCL API in case one couldn't be reverse geocoded
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if not area_text:
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area_text = event["city"]
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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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outage_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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mastodon_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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