def handle_get_tags() -> HttpResponse:
tags = get_tags()
tags_json = {}
for tag in tags:
tags_json[str(tag.tag_id)] = tag.to_json()
return get_with_data({'tags': tags_json})
def handle_delete_tag(tag_id: str) -> HttpResponse:
short_id_res = validate_short_id(tag_id)
if short_id_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, short_id_res.message)
song_res = remove_tag(short_id_res.data)
if song_res.is_error:
return get_with_error(HTTPStatus.NOT_FOUND, song_res.message)
else:
return get_with_data(song_res.data)
def handle_delete_song(song_id: str) -> HttpResponse:
valid_id_res = validate_short_id(song_id)
if valid_id_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, valid_id_res.message)
valid_song_id = valid_id_res.data
song_res = get_song_by_id(valid_song_id)
if song_res.is_error:
return get_with_error(HTTPStatus.NOT_FOUND, song_res.message)
remove_song(valid_song_id)
return get_with_data({})
def handle_get_songs_and_tags() -> HttpResponse:
songs = get_songs()
songs_json = {}
for song in songs:
songs_json[str(song.song_id)] = song.to_json()
tags = get_tags()
tags_json = {}
for tag in tags:
tags_json[str(tag.tag_id)] = tag.to_json()
return get_with_data({'songs': songs_json, 'tags': tags_json})
def handle_get_tag_by_id(tag_id: str) -> HttpResponse:
short_id_res = validate_short_id(tag_id)
if short_id_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, short_id_res.message)
tag_res = get_tag_by_id(short_id_res.data)
if tag_res.is_error:
return get_with_error(HTTPStatus.NOT_FOUND, tag_res.message)
else:
return get_with_data({
'tag': tag_res.data.to_json(),
})
def handle_get_song_by_id(song_id: str) -> HttpResponse:
short_id_res = validate_short_id(song_id)
if short_id_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, short_id_res.message)
song_res = get_song_by_id(short_id_res.data)
if song_res.is_error:
return get_with_error(404, song_res.message)
else:
song = song_res.data
tags_json = {}
for tag_id in song.tags:
tag_res = get_tag_by_id(tag_id)
if not tag_res.is_error:
tags_json[str(tag_id)] = tag_res.data.to_json()
return get_with_data({'song': song.to_json(), 'tags': tags_json})
def handle_create_song(song_request: Dict) -> HttpResponse:
valid_song_res = validate_song(song_request)
if valid_song_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, valid_song_res.message)
song = valid_song_res.data
song_res = get_song_by_name(song.title)
if not song_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, SONG_TITLE_ALREADY_EXIST)
for tag_id in song.tags:
tag_res = get_tag_by_id(tag_id)
if tag_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, tag_res.message)
song_id = create_song(valid_song_res.data).data
for tag_id in song.tags:
create_songtotag(SongToTagObject(song=song_id, tag=tag_id))
return get_with_data({'song_id': str(song_id)})
def handle_update_song(song_request: Dict, song_id: str) -> HttpResponse:
valid_song_res = validate_song_update(song_request, song_id)
if valid_song_res.is_error:
return get_with_error(HTTPStatus.BAD_REQUEST, valid_song_res.message)
song = valid_song_res.data
song_res = get_song_by_name(song.title)
if not song_res.is_error and song_res.data.song_id != song.song_id:
return get_with_error(HTTPStatus.BAD_REQUEST, SONG_TITLE_ALREADY_EXIST)
songtotags_tag_ids = [
stt.tag for stt in get_songtotag_by_song_id(song.song_id)
]
for tag_id in song.tags:
if tag_id not in songtotags_tag_ids:
create_songtotag(SongToTagObject(song=song.song_id, tag=tag_id))
for stt_tag_id in songtotags_tag_ids:
if stt_tag_id not in song.tags:
remove_songtotag(SongToTagObject(song=song.song_id,
tag=stt_tag_id))
update_song(valid_song_res.data)
return get_with_data({})