#!/usr/bin/env python
# papis-short-help: Display pretty human-readable document overview
#
# Takes a query and displays the metadata of the results. Uses
# python-rich to display pretty panels if it exists in the environment,
# otherwise displays regular text.
# Can be invoked with -s to display single-line results better for
# pasting into other documents.

import argparse
from importlib.util import find_spec
from papis import database
from papis.database.base import Database
from papis.document import Document
from dataclasses import dataclass, field

parser = argparse.ArgumentParser()
parser.add_argument(
    "--short", "-s", help="only display single-line quick info", action="store_true"
)
parser.add_argument(
    "--url",
    dest="identifier",
    help="display identifier (doi, isbn, url) or not",
    action=argparse.BooleanOptionalAction,
    default=True,
)
parser.add_argument("query", nargs="*", help="the query to search for")
args = parser.parse_args()


@dataclass
class DocInfo:
    author: str = ""
    title: str = ""
    year: str = ""
    journal: str = ""
    volume: str = ""
    issue: str = ""
    pages: str = ""
    publisher: str = ""
    tags: list = field(default_factory=lambda: [])
    dtype: str = ""
    identifier: str = ""
    doi: str = ""

    @staticmethod
    def from_Document(doc: Document):
        t: list[str] | str = doc.get("tags", "")
        tags = (
            t.replace(";", ",").replace(" ", "").split(",") if isinstance(t, str) else t
        )
        return DocInfo(
            author=doc.get("author", ""),
            title=doc.get("title", ""),
            year=doc.get("year", ""),
            journal=doc.get("journal", ""),
            volume=doc.get("volume", ""),
            issue=doc.get("issue", ""),
            pages=doc.get("pages", ""),
            publisher=doc.get("publisher", ""),
            tags=tags,
            dtype=doc.get("type", ""),
            identifier=doc.get("doi", doc.get("isbn", doc.get("url", ""))),
        )


def main(db: Database, args) -> None:
    query = " ".join(args.query)
    docs: list[Document] = db.query(query)
    for doc in docs:
        info = DocInfo.from_Document(doc)
        if args.short:
            print_short(info, with_identifier=args.identifier)
        else:
            print_info(info, with_identifier=args.identifier)


def print_short(doc: DocInfo, with_identifier: bool = True) -> None:
    print(
        f"{doc.author} ({doc.year}). {doc.title}. "
        f"{doc.identifier if with_identifier else ''}\n"
    )


def print_info(doc: DocInfo, with_identifier: bool = True) -> None:
    if find_spec("rich"):
        from rich import print as richprint
        from rich.panel import Panel

        info: str = (
            f"[red]{doc.author}[/red] ({doc.year}) "
            f"[steel_blue]\\[{doc.dtype}][/steel_blue]\n"
            f"[bold]{doc.title}[/bold]\n"
            f"{doc.journal} ({doc.volume}/{doc.issue}){doc.pages} - {doc.publisher}\n"
            f"[grey69]{[tag for tag in doc.tags]} "
        )
        if with_identifier:
            info += f"[link={doc.identifier}]{doc.identifier}[/link][/grey69]"
        richprint(Panel(info, expand=False))
    else:
        info: str = (
            f"{doc.author} ({doc.year}) "
            f"[{doc.dtype}]\n"
            f"{doc.title}\n"
            f"{doc.journal} ({doc.volume}/{doc.issue}){doc.pages} - {doc.publisher}\n"
            f"{[tag for tag in doc.tags]} "
            f"{doc.identifier}"
            if with_identifier
            else ""
        )
        print(f"{info}\n---")


if __name__ == "__main__":
    main(database.get(), args)