generating songlist / image on cab

[komacat]

Create a python script that runs every hour using cron

python script should

• generate songlist
• extract banners

Extract Songlist

songlist should have following format

@dataclass(kw_only=True, frozen=True)
class Chart:
    difficulty: str
    meter: int
    credit: str | None

@dataclass(kw_only=True, frozen=True)
class Song:
    title: str
    artist: str | None
    credit: str | None
    charts: list[Chart]

@dataclass(kw_only=True, frozen=True)
class Pack:
    name: str
    songs: list[Song]

Songlist = list[Pack]

Extract banners

save all banner images in /home/remy/banners
no separation between pack images and song images is needed

generate image file name like

from dataclasses import dataclass
from uuid import uuid5

NAMESPACE_SONG = "772c3614-0fa4-40c7-b654-af81d7a1b197"
NAMESPACE_PACK = "8d7a2f09-452f-4e64-ab80-2320998f4595"

def generate_song_banner_uuid(pack: Pack, song: Song) -> str:
    return str(uuid5(NAMESPACE_SONG, f"{pack.name}/{song.title}"))

def generate_pack_banner_uuid(pack: Pack) -> str:
    return str(uuid5(NAMESPACE_PACK, pack.name))

Python script should return list of image file paths, do not copy files in python

you can just print list of files

Copy over files using bash

copy like cp $(python discover_banners.py) /home/remy/banners/

Convert image format

use mogrify to batch convert images to webp from banners folder to banners-webp folder

create a bash script to run above tasks

#!/bin/bash

cp $(python extract_songs.py) /home/remy/banners
mogrify ...