music-kraken-core/src/music_kraken/pages/bandcamp.py

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from typing import List, Optional, Type
from urllib.parse import urlparse
import json
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from enum import Enum
from bs4 import BeautifulSoup
from ..objects import Source, DatabaseObject
from .abstract import Page
from ..objects import (
Artist,
Source,
SourcePages,
Song,
Album,
Label,
Target,
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Contact,
ID3Timestamp
)
from ..connection import Connection
from ..utils.support_classes import DownloadResult
from ..utils.config import main_settings, logging_settings
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from ..utils.shared import DEBUG
if DEBUG:
from ..utils.debug_utils import dump_to_file
class BandcampTypes(Enum):
ARTIST = "b"
ALBUM = "a"
SONG = "t"
class Bandcamp(Page):
# CHANGE
SOURCE_TYPE = SourcePages.BANDCAMP
LOGGER = logging_settings["bandcamp_logger"]
HOST = "https://onlysmile.bandcamp.com"
def __init__(self, *args, **kwargs):
self.connection: Connection = Connection(
host="https://bandcamp.com/",
logger=self.LOGGER
)
super().__init__(*args, **kwargs)
def get_source_type(self, source: Source) -> Optional[Type[DatabaseObject]]:
parsed_url = urlparse(source.url)
if parsed_url.path == "":
return Artist
if parsed_url.path.startswith("/album/"):
return Album
if parsed_url.path.startswith("/track/"):
return Song
return super().get_source_type(source)
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def _parse_autocomplete_api_result(self, data: dict) -> DatabaseObject:
try:
object_type = BandcampTypes(data["type"])
except ValueError:
print(data["type"])
return
url = data["item_url_root"]
if "item_url_path" in data:
url = data["item_url_path"]
source_list = [Source(self.SOURCE_TYPE, url)]
name = data["name"]
if data.get("is_label", False):
return Label(
name=name,
source_list=source_list
)
if object_type is BandcampTypes.ARTIST:
return Artist(
name=name,
source_list=source_list
)
if object_type is BandcampTypes.ALBUM:
return Album(
title=name,
source_list=source_list,
artist_list=[
Artist(
name=data["band_name"],
source_list=[
Source(self.SOURCE_TYPE, data["item_url_root"])
]
)
]
)
if object_type is BandcampTypes.SONG:
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return Song(
title=name,
source_list=source_list,
main_artist_list=[
Artist(
name=data["band_name"],
source_list=[
Source(self.SOURCE_TYPE, data["item_url_root"])
]
)
]
)
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def general_search(self, search_query: str, filter_string: str = "") -> List[DatabaseObject]:
results = []
r = self.connection.post("https://bandcamp.com/api/bcsearch_public_api/1/autocomplete_elastic", json={
"fan_id": None,
"full_page": True,
"search_filter": filter_string,
"search_text": search_query,
})
if r is None:
return results
if DEBUG:
dump_to_file("bandcamp_response.json", r.text, is_json=True, exit_after_dump=False)
data = r.json()
for element in data.get("auto", {}).get("results", []):
r = self._parse_autocomplete_api_result(element)
if r is not None:
results.append(r)
return results
def label_search(self, label: Label) -> List[Label]:
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return self.general_search(label.name, filter_string="b")
def artist_search(self, artist: Artist) -> List[Artist]:
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return self.general_search(artist.name, filter_string="b")
def album_search(self, album: Album) -> List[Album]:
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return self.general_search(album.title, filter_string="a")
def song_search(self, song: Song) -> List[Song]:
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return self.general_search(song.title, filter_string="t")
def fetch_label(self, source: Source, stop_at_level: int = 1) -> Label:
return Label()
def _parse_artist_details(self, soup: BeautifulSoup) -> Artist:
name: str = None
source_list: List[Source] = []
contact_list: List[Contact] = []
band_name_location: BeautifulSoup = soup.find("p", {"id": "band-name-location"})
if band_name_location is not None:
title_span = band_name_location.find("span", {"class": "title"})
if title_span is not None:
name = title_span.text.strip()
link_container: BeautifulSoup = soup.find("ol", {"id": "band-links"})
if link_container is not None:
li: BeautifulSoup
for li in link_container.find_all("a"):
if li is None and li['href'] is not None:
continue
source_list.append(Source.match_url(li['href'], referer_page=self.SOURCE_TYPE))
return Artist(
name=name,
source_list=source_list
)
def _parse_song_list(self, soup: BeautifulSoup) -> List[Album]:
title = None
source_list: List[Source] = []
a = soup.find("a")
if a is not None and a["href"] is not None:
source_list.append(Source(self.SOURCE_TYPE, self.HOST + a["href"]))
title_p = soup.find("p", {"class": "title"})
if title_p is not None:
title = title_p.text.strip()
return Album(title=title, source_list=source_list)
def fetch_artist(self, source: Source, stop_at_level: int = 1) -> Artist:
artist = Artist()
r = self.connection.get(source.url)
if r is None:
return artist
soup = self.get_soup_from_response(r)
if DEBUG:
dump_to_file("artist_page.html", r.text, exit_after_dump=False)
artist = self._parse_artist_details(soup=soup.find("div", {"id": "bio-container"}))
for subsoup in soup.find("ol", {"id": "music-grid"}).find_all("li"):
artist.main_album_collection.append(self._parse_song_list(soup=subsoup))
return artist
def _parse_track_element(self, track: dict) -> Optional[Song]:
return Song(
title=track["item"]["name"],
source_list=[Source(self.SOURCE_TYPE, track["item"]["mainEntityOfPage"])],
tracksort=track["position"]
)
def fetch_album(self, source: Source, stop_at_level: int = 1) -> Album:
print(source)
album = Album()
r = self.connection.get(source.url)
if r is None:
return album
soup = self.get_soup_from_response(r)
data_container = soup.find("script", {"type": "application/ld+json"})
if DEBUG:
dump_to_file("album_data.json", data_container.text, is_json=True, exit_after_dump=False)
data = json.loads(data_container.text)
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artist_data = data["byArtist"]
album = Album(
title=data["name"],
source_list=[Source(self.SOURCE_TYPE, data.get("mainEntityOfPage", data["@id"]))],
date=ID3Timestamp.strptime(data["datePublished"], "%d %b %Y %H:%M:%S %Z"),
artist_list=[Artist(
name=artist_data["name"],
source_list=[Source(self.SOURCE_TYPE, artist_data["@id"])]
)]
)
for i, track_json in enumerate(data.get("track", {}).get("itemListElement", [])):
if DEBUG:
dump_to_file(f"album_track_{i}.json", json.dumps(track_json), is_json=True, exit_after_dump=False)
try:
album.song_collection.append(self._parse_track_element(track_json))
except KeyError:
continue
return album
def fetch_song(self, source: Source, stop_at_level: int = 1) -> Song:
print(source)
return Song()
def download_song_to_target(self, source: Source, target: Target, desc: str = None) -> DownloadResult:
return DownloadResult()