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kubra_scraper.py
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kubra_scraper.py
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import mercantile
import polyline
import requests
from dotenv import load_dotenv
from base_scraper import DeltaScraper
load_dotenv()
MIN_ZOOM = 7
# They don't appear to let us zoom in beyond 15.
# They just group incidents that aren't resolvable at zoom level 14, which isn't great.
MAX_ZOOM = 14
class KubraScraper(DeltaScraper):
base_url = "https://kubra.io/"
record_key = "id"
noun = "outage"
total_downloaded = 0
total_requests = 0
@property
def config_url(self):
return f"{self.base_url}stormcenter/api/v1/stormcenters/{self.instance_id}/views/{self.view_id}/configuration/{self.deploymentId}?preview=false"
@property
def data_url(self):
return f"{self.base_url}{self.data_path}/public/summary-1/data.json"
@property
def service_areas_url(self):
return f"{self.base_url}{self.regions}/{self.regions_key}/serviceareas.json"
@property
def state_url(self):
return (
f"{self.base_url}stormcenter/api/v1/stormcenters/{self.instance_id}/views/{self.view_id}/currentState?preview=false"
)
def __init__(self, github_token):
super().__init__(github_token)
state = self._make_request(self.state_url).json()
self.regions_key = list(state["datastatic"])[0]
self.regions = state["datastatic"][self.regions_key]
self.data_path = state["data"]["interval_generation_data"]
self.cluster_data_path = state["data"]["cluster_interval_generation_data"]
self.deploymentId = state["stormcenterDeploymentId"]
config = self._make_request(self.config_url).json()
interval_data = config["config"]["layers"]["data"]["interval_generation_data"]
self.layer_name = [l for l in interval_data if l["type"].startswith("CLUSTER_LAYER")][0]["layerName"]
def fetch_data(self):
data = self._make_request(self.data_url).json()
expected_outages = data["summaryFileData"]["totals"][0]["total_outages"]
quadkeys = self._get_service_area_quadkeys()
outages = self._fetch_data(quadkeys, set()).values()
number_out = sum([o["numberOut"] for o in outages])
print(f"Made {self.total_requests} requests, fetching {self.total_downloaded/1000} KB.")
if number_out != expected_outages:
raise Exception(f"Outages found ({number_out}) does not match expected outages ({expected_outages})")
return list(outages)
def display_record(self, outage):
display = [f" {outage['custAffected']} outage(s) added with {outage['custAffected']} customers affected"]
return "\n".join(display)
def _fetch_data(self, quadkeys, already_seen, zoom=MIN_ZOOM, cluster_search=False, print_prepend=""):
outages = {}
for q in quadkeys:
url = self._get_quadkey_url(q)
if url in already_seen:
print(print_prepend, "Skipping", url)
continue
already_seen.add(url)
res = self._make_request(url)
print(print_prepend, url, "Is cluster search?:", cluster_search, "Tile:", self._get_tile_for_quadkey(q))
# If there are no outages in the area, there won't be a file.
if not res.ok:
print(print_prepend, "Not found")
continue
for o in res.json()["file_data"]:
print(print_prepend, o)
if o["desc"]["cluster"]:
# If it's a cluster, we need to drill down (zoom in)
next_zoom = zoom + 1
if next_zoom > MAX_ZOOM:
print("We are at max zoom, we can't resolve incidents grouped closer than zoom level 14.")
outage_info = self._get_outage_info(o, url)
outages[outage_info["id"]] = outage_info
else:
print(print_prepend, "Zooming in. Going to:", next_zoom)
outages.update(
self._fetch_data(
[self._get_quadkey_for_point(o["geom"]["p"][0], next_zoom)],
already_seen,
next_zoom,
True,
print_prepend + " ",
)
)
else:
print(print_prepend, "Looking for neighbors")
outages.update(
self._fetch_data(
self._get_neighboring_quadkeys(q), already_seen, zoom, False, print_prepend + " "
)
)
outage_info = self._get_outage_info(o, url)
outages[outage_info["id"]] = outage_info
print(print_prepend, "Returning")
return outages
def _get_quadkey_url(self, quadkey):
data_path = self.cluster_data_path.format(qkh=quadkey[-3:][::-1])
return f"{self.base_url}{data_path}/public/{self.layer_name}/{quadkey}.json"
def _get_service_area_quadkeys(self):
"""Get the quadkeys for the entire service area"""
res = self._make_request(self.service_areas_url).json()
areas = res.get("file_data")[0].get("geom").get("a")
points = []
for geom in areas:
# Geometries are in Google's Polyline Algorithm format
# https://developers.google.com/maps/documentation/utilities/polylinealgorithm
points += polyline.decode(geom)
bbox = self._get_bounding_box(points)
return [mercantile.quadkey(t) for t in mercantile.tiles(*bbox, zooms=[MIN_ZOOM])]
def _make_request(self, url):
res = requests.get(url)
self.total_downloaded += len(res.content)
self.total_requests += 1
return res
@staticmethod
def _get_bounding_box(points):
x_coordinates, y_coordinates = zip(*points)
return [min(y_coordinates), min(x_coordinates), max(y_coordinates), max(x_coordinates)]
@staticmethod
def _get_neighboring_quadkeys(quadkey):
tile = mercantile.quadkey_to_tile(quadkey)
return [
mercantile.quadkey(mercantile.Tile(x=tile.x, y=tile.y - 1, z=tile.z)), # N
mercantile.quadkey(mercantile.Tile(x=tile.x + 1, y=tile.y, z=tile.z)), # E
mercantile.quadkey(mercantile.Tile(x=tile.x, y=tile.y + 1, z=tile.z)), # S
mercantile.quadkey(mercantile.Tile(x=tile.x - 1, y=tile.y, z=tile.z)), # W
mercantile.quadkey(mercantile.Tile(x=tile.x + 1, y=tile.y - 1, z=tile.z)), # NE
mercantile.quadkey(mercantile.Tile(x=tile.x + 1, y=tile.y + 1, z=tile.z)), # SE
mercantile.quadkey(mercantile.Tile(x=tile.x - 1, y=tile.y - 1, z=tile.z)), # NW
mercantile.quadkey(mercantile.Tile(x=tile.x - 1, y=tile.y + 1, z=tile.z)), # SW
]
@staticmethod
def _get_outage_info(raw_outage, url):
desc = raw_outage["desc"]
loc = polyline.decode(raw_outage["geom"]["p"][0])
# If it's a cluster we can't resolve, assign an ID that is <polyline point>-<start time>
return {
"id": f"{raw_outage['geom']['p'][0]}-{desc['start_time']}" if not desc["inc_id"] else desc["inc_id"],
"etr": desc["etr"],
"etrConfidence": desc["etr_confidence"],
"cluster": desc["cluster"],
"comments": desc["comments"],
"cause": desc["cause"]["EN-US"] if desc["cause"] else None,
"numberOut": desc["n_out"],
"custAffected": desc["cust_a"]["val"],
"crewStatus": desc["crew_status"],
"startTime": desc["start_time"],
"latitude": loc[0][0],
"longitude": loc[0][1],
"source": url,
}
@staticmethod
def _get_quadkey_for_point(point, zoom):
ll = polyline.decode(point)[0]
return mercantile.quadkey(mercantile.tile(lng=ll[1], lat=ll[0], zoom=zoom))
@staticmethod
def _get_tile_for_quadkey(quadkey):
return mercantile.quadkey_to_tile(quadkey)