"""Templates registry CLI."""

from pathlib import Path

import click

from bin import templates_registry


@click.group(name="templates")
def templates_cmd():
    """Manage external templates registry."""
    pass


@templates_cmd.command("register")
@click.argument("path", type=click.Path(exists=True, file_okay=False, dir_okay=True))
def templates_register(path):
    """Register a directory as the templates root."""
    resolved = templates_registry.set_root(Path(path))
    click.secho(f"Registered: {resolved}", fg="green")


@templates_cmd.command("list")
def templates_list():
    """List the current registry and available templates."""
    if not templates_registry.CONFIG_PATH.exists():
        click.echo("No registry. Run: mytoolkit templates register <path>")
        return

    import json

    with open(templates_registry.CONFIG_PATH, encoding="utf-8") as f:
        data = json.load(f)
    raw = data.get("dir")
    click.echo(f"Registry: {templates_registry.CONFIG_PATH}")
    click.echo(f"Root:     {raw}")

    if not raw or not Path(raw).is_dir():
        click.secho("(root path missing)", fg="red")
        return

    root = Path(raw)
    pdf_dir = root / "md-to-pdf"
    docx_dir = root / "md-to-docx"

    click.echo("\nmd-to-pdf:")
    if pdf_dir.is_dir():
        entries = sorted(
            (p.name, p / "template.typ")
            for p in pdf_dir.iterdir()
            if (p / "template.typ").exists()
        )
        if not entries:
            click.echo("  (none)")
        else:
            width = max(len(n) for n, _ in entries)
            for name, path in entries:
                click.echo(f"  - {name:<{width}}  {path}")
    else:
        click.secho("  (subdirectory missing)", fg="yellow")

    click.echo("\nmd-to-docx:")
    if docx_dir.is_dir():
        entries = sorted(
            (p.name, p / "template.docx")
            for p in docx_dir.iterdir()
            if (p / "template.docx").exists()
        )
        if not entries:
            click.echo("  (none)")
        else:
            width = max(len(n) for n, _ in entries)
            for name, path in entries:
                click.echo(f"  - {name:<{width}}  {path}")
    else:
        click.secho("  (subdirectory missing)", fg="yellow")