71 lines
2.2 KiB
Python
71 lines
2.2 KiB
Python
import logging
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from database import MusicDatabase
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from media.item import item_builders, item_loaders, item_id_generators
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from media.file import FileItem
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from media.url import URLItem
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from media.url_from_playlist import PlaylistURLItem
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from media.radio import RadioItem
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from database import MusicDatabase
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import variables as var
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class MusicLibrary(dict):
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def __init__(self, db: MusicDatabase):
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super().__init__()
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self.db = db
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self.log = logging.getLogger("bot")
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def get_item_by_id(self, bot, id):
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if id in self:
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return self[id]
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# if not cached, query the database
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item = self.fetch(bot, id)
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if item is not None:
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self[id] = item
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self.log.debug("library: music found in database: %s" % item.format_debug_string())
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return item
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def get_item(self, bot, **kwargs):
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# kwargs should provide type and id, and parameters to build the item if not existed in the library.
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# if cached
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id = item_id_generators[kwargs['type']](**kwargs)
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if id in self:
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return self[id]
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# if not cached, query the database
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item = self.fetch(bot, id)
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if item is not None:
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self[id] = item
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self.log.debug("library: music found in database: %s" % item.format_debug_string())
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return item
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# if not in the database, build one
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self[id] = item_builders[kwargs['type']](bot, **kwargs) # newly built item will not be saved immediately
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return self[id]
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def fetch(self, bot, id):
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music_dicts = self.db.query_music(id=id)
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if music_dicts:
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music_dict = music_dicts[0]
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type = music_dict['type']
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self[id] = item_loaders[type](bot, music_dict)
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return self[id]
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else:
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return None
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def save(self, id):
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self.log.debug("library: music save into database: %s" % self[id].format_debug_string())
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self.db.insert_music(self[id].to_dict())
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def delete(self, id):
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self.db.delete_music(id=id)
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def free(self, id):
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if id in self:
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del self[id]
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def free_all(self):
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self.clear()
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