expose rightmove query parameters as cli options

crawler/1_dump_listings.py

@@ -1,33 +1,47 @@
+from dataclasses import dataclass
 import pathlib
 from rec.query import listing_query
 from rec.districts import get_districts
 from data_access import Listing
 
 
+@dataclass(frozen=True)
+class QueryParameters:
+    min_bedrooms: int
+    max_bedrooms: int
+    min_price: int
+    max_price: int
+    district_names: set[str]
+    radius: float = 0
+    page_size: int = 500  # items per page
+    max_days_since_added: int | None = None
+
+
 def dump_listings(
-    district_names: set[str] | None = None,
-    data_dir: pathlib.Path = pathlib.Path("data/rs/")
-):
-    districts = get_districts() if district_names is None else {
+    parameters: QueryParameters,
+    data_dir: pathlib.Path = pathlib.Path("data/rs/"),
+) -> list[Listing]:
+    districts = {
         district: locid
         for district, locid in get_districts().items()
-        if district in district_names
+        if district in parameters.district_names
     }
     print("Valid districts to scrape:", districts.keys())
+    listings = []
     for district, locid in districts.items():
         print("#### District:", district)
         for i in [1, 2]:
             try:
                 d = listing_query(
                     page=i,
-                    min_bedrooms=1,
-                    max_bedrooms=4,
-                    radius=0,
-                    min_price=0,
-                    max_price=1000000,
+                    min_bedrooms=parameters.min_bedrooms,
+                    max_bedrooms=parameters.max_bedrooms,
+                    radius=parameters.radius,
+                    min_price=parameters.min_price,
+                    max_price=parameters.max_price,
                     location_id=locid,
-                    page_size=500,
-                    max_days_since_added=None,
+                    page_size=parameters.page_size,
+                    max_days_since_added=parameters.max_days_since_added,
                 )
             except Exception as e:
                 print(e)
@@ -43,7 +57,9 @@ def dump_listings(
 
                 listing = Listing(identifier, data_dir=data_dir)
                 listing.dump_listing(property)
+                listings.append(listing)
         print()  # break line as we used end=, above.
+    return listings
 
 
 def main():

crawler/main.py

@@ -41,6 +41,30 @@ def cli(ctx, data_dir: str):
 
 
 @cli.command()
+@click.option(
+    '--min-bedrooms',
+    default=1,
+    help='Minimum number of bedrooms',
+    type=click.IntRange(min=1),
+)
+@click.option(
+    '--max-bedrooms',
+    default=5,
+    help='Maximum number of bedrooms',
+    type=click.IntRange(min=1),
+)
+@click.option(
+    '--min-price',
+    default=0,
+    help='Minimum price',
+    type=click.IntRange(min=0),
+)
+@click.option(
+    '--max-price',
+    default=1000000,
+    help='Maximum price',
+    type=click.IntRange(min=0),
+)
 @click.option(
     '--district',
     default=None,
@@ -49,13 +73,28 @@ def cli(ctx, data_dir: str):
     multiple=True,
 )
 @click.pass_context
-def dump_listings(ctx: click.core.Context, district: list[str]):
+def dump_listings(
+    ctx: click.core.Context,
+    district: list[str],
+    min_bedrooms: int,
+    max_bedrooms: int,
+    min_price: int,
+    max_price: int,
+):
     data_dir: str = ctx.obj['data_dir']
+    query_parameters = dump_listings_module.QueryParameters(
+        district_names=set(district),
+        min_bedrooms=min_bedrooms,
+        max_bedrooms=max_bedrooms,
+        min_price=min_price,
+        max_price=max_price,
+    )
     click.echo(
-        f'Running dump_listings for districts {district} and data dir {data_dir}'
+        f'Running dump_listings for districts {district}, data dir {data_dir} and parameters: '
+        f'{query_parameters}'
     )
     data_dir_path = pathlib.Path(data_dir)
-    dump_listings_module.dump_listings(set(district), data_dir_path)
+    dump_listings_module.dump_listings(query_parameters, data_dir_path)
 
 
 @cli.command()