"""
Router "text" provides:

- listing text files
- finding text files by name prefix
- getting text file raw content by name prefix
- getting text file HTML content by name prefix (using Markdown)
- getting the "ticker" raw content
- getting the "ticker" HTML content (using Markdown)
"""

import re
from logging import getLogger
from typing import Iterator

from fastapi import APIRouter, Depends
from markdown import markdown

from ..dav_common import webdav_ensure_path
from ..dav_file import DavFile
from ._common import FileNameLister, PrefixFinder, PrefixUnique

_logger = getLogger(__name__)

router = APIRouter(prefix="/text", tags=["text"])

text_lister = FileNameLister(
    path_name="text_dir",
    re=re.compile(
        r"\.(txt|md)$",
        flags=re.IGNORECASE,
    ),
)

text_finder = PrefixFinder(text_lister)
text_unique = PrefixUnique(text_finder)


@router.on_event("startup")
async def start_router() -> None:
    _logger.debug(f"{router.prefix} router starting.")

    webdav_ensure_path(await text_lister.remote_path)


@router.get(
    "/list",
    response_model=list[str],
    responses=text_lister.responses,
)
async def list_texts(
    names: Iterator[str] = Depends(text_lister),
) -> list[str]:
    return list(names)


@router.get(
    "/find/{prefix}",
    response_model=list[str],
    responses=text_finder.responses,
)
async def find_texts(
    names: Iterator[str] = Depends(text_finder),
) -> list[str]:
    return list(names)


async def get_text_content(
    name: str = Depends(text_unique),
) -> str:
    return await DavFile(
        f"{await text_lister.remote_path}/{name}",
    ).as_string


@router.get(
    "/get/html/{prefix}",
    response_model=str,
    responses=text_unique.responses,
)
async def get_text(
    text: str = Depends(get_text_content),
) -> str:
    return markdown(text)


@router.get(
    "/get/raw/{prefix}",
    response_model=str,
    responses=text_unique.responses,
)
async def get_raw_text(
    text: str = Depends(get_text_content),
) -> str:
    return text