"""
[[https://getpocket.com][Pocket]] bookmarks and highlights
"""
REQUIRES = [
    'git+https://github.com/karlicoss/pockexport',
]
from dataclasses import dataclass
from typing import Optional

from .core import Paths

from my.config import pocket as user_config


@dataclass
class pocket(user_config):
    '''
    Uses [[https://github.com/karlicoss/pockexport][pockexport]] outputs
    '''

    # paths[s]/glob to the exported JSON data
    export_path: Paths


from .core.cfg import make_config
config = make_config(pocket)


try:
    from pockexport import dal
except ModuleNotFoundError as e:
    from .core.compat import pre_pip_dal_handler
    dal = pre_pip_dal_handler('pockexport', e, config, requires=REQUIRES)

############################

Article = dal.Article

from pathlib import Path
from typing import Sequence, Iterable


# todo not sure if should be defensive against empty?
def _dal() -> dal.DAL:
    from .core import get_files
    inputs = get_files(config.export_path)
    return dal.DAL(inputs)


def articles() -> Iterable[Article]:
    yield from _dal().articles()


def stats():
    from itertools import chain
    from more_itertools import ilen
    # todo make stats more defensive?
    return {
        'articles'  : ilen(articles()),
        'highlights': ilen(chain.from_iterable(a.highlights for a in articles())),
    }


# todo deprecate?
def get_articles() -> Sequence[Article]:
    return list(articles())