"""BibTeX utilities."""

import subprocess
from pathlib import Path

import click

from mycli.config import config
from mycli.utils import handle_errors, run_command


@click.group()
def bib():
    """BibTeX and bibliography commands."""
    pass


@bib.command("to-markdown")
@click.argument("files", nargs=-1, required=True)
@click.option("--dry-run", "-n", is_flag=True, help="Show what would be done")
@handle_errors
def to_markdown(files, dry_run):
    """Convert BibTeX files to Markdown."""
    for pattern in files:
        for bib_file in Path(".").glob(pattern):
            if bib_file.suffix.lower() != ".bib":
                continue
            output = bib_file.with_suffix(".md")

            if dry_run:
                click.echo(f"Would convert: {bib_file} -> {output}")
                continue

            click.echo(f"Converting: {bib_file} -> {output}")
            content = bib_file.read_text()
            md_content = f"# Bibliography\n\n```bibtex\n{content}\n```\n"
            output.write_text(md_content)


@bib.command("cv-update")
@handle_errors
def cv_update():
    """Update CV bibliography using biber."""
    cv_path = config.get_path("cv")
    if not cv_path:
        # Fallback to hardcoded path
        cv_path = Path.home() / "Documents/Personal/resume_cv/cv_lai_maintaining_latex/cv_lai_maintaining"

    if not cv_path.exists():
        click.echo(f"CV file not found: {cv_path}")
        return

    click.echo(f"Updating CV bibliography: {cv_path}")
    run_command(["biber", str(cv_path)], check=False)