HPI/my/hackernews/dogsheep.py
2024-10-19 23:41:22 +01:00

64 lines
2.1 KiB
Python

"""
Hackernews data via Dogsheep [[hacker-news-to-sqlite][https://github.com/dogsheep/hacker-news-to-sqlite]]
"""
from __future__ import annotations
from collections.abc import Iterator, Sequence
from dataclasses import dataclass
from datetime import datetime, timezone
from pathlib import Path
import my.config
from my.core import Paths, Res, datetime_aware, get_files
from my.core.sqlite import sqlite_connection
from .common import hackernews_link
@dataclass
class config(my.config.hackernews.dogsheep):
# paths[s]/glob to the dogsheep database
export_path: Paths
# todo so much boilerplate... really need some common wildcard imports?...
# at least for stuff which realistically is used in each module like get_files/Sequence/Paths/dataclass/Iterator/Optional
def inputs() -> Sequence[Path]:
return get_files(config.export_path)
# TODO not sure if worth splitting into Comment and Story?
@dataclass(unsafe_hash=True)
class Item:
id: str
type: str
created: datetime_aware # checked and it's utc
title: str | None # only present for Story
text_html: str | None # should be present for Comment and might for Story
url: str | None # might be present for Story
# todo process 'deleted'? fields?
# todo process 'parent'?
@property
def permalink(self) -> str:
return hackernews_link(self.id)
# TODO hmm kinda annoying that permalink isn't getting serialized
# maybe won't be such a big problem if we used hpi query directly on objects, without jsons?
# so we could just take .permalink thing
def items() -> Iterator[Res[Item]]:
f = max(inputs())
with sqlite_connection(f, immutable=True, row_factory='row') as conn:
for r in conn.execute('SELECT * FROM items ORDER BY time'):
yield Item(
id=r['id'],
type=r['type'],
created=datetime.fromtimestamp(r['time'], tz=timezone.utc),
title=r['title'],
# todo hmm maybe a method to strip off html tags would be nice
text_html=r['text'],
url=r['url'],
)