"""Command-line entry point for the KorByte pipeline."""

from __future__ import annotations

import argparse
import json
from pathlib import Path
from typing import Any

from .benchmark import run_benchmark
from .comparison import run_comparison
from .config import DEFAULT_REPOSITORY_ID, DEFAULT_SEED, project_root
from .corpus import prepare_corpus
from .publish import authenticated_owner, publish_release
from .report import render_reports
from .train import train_tokenizer
from .validate import validate_release


def _print_json(value: Any) -> None:
    print(json.dumps(value, ensure_ascii=False, indent=2, default=str))


def _parser() -> argparse.ArgumentParser:
    parser = argparse.ArgumentParser(
        prog="korbyte", description="Build, benchmark, validate, and publish KorByte-128K"
    )
    parser.add_argument(
        "--root",
        type=Path,
        default=project_root(),
        help="project root (defaults to the installed source tree)",
    )
    subparsers = parser.add_subparsers(dest="command", required=True)

    prepare = subparsers.add_parser("prepare", help="prepare the deterministic corpus")
    prepare.add_argument("--scale", type=float, default=1.0)
    prepare.add_argument("--seed", type=int, default=DEFAULT_SEED)

    train = subparsers.add_parser("train", help="train and package the tokenizer")
    train.add_argument("--min-frequency", type=int, default=3)

    benchmark = subparsers.add_parser("benchmark", help="run held-out intrinsic benchmarks")
    benchmark.add_argument("--limit-per-domain", type=int, default=1_000)
    benchmark.add_argument("--repeats", type=int, default=3)
    benchmark.add_argument("--skip-morphological", action="store_true")

    compare = subparsers.add_parser("compare", help="run pinned public comparisons")
    compare.add_argument("--repeats", type=int, default=3)

    render = subparsers.add_parser("render", help="render the model card and reports")
    render.add_argument("--repo-id", default=DEFAULT_REPOSITORY_ID)

    validate = subparsers.add_parser("validate", help="validate release invariants")
    validate.add_argument("--no-require-benchmark", action="store_true")

    subparsers.add_parser("owner", help="print the authenticated Hugging Face username")

    publish = subparsers.add_parser("publish", help="publish and remotely verify the release")
    publish.add_argument("--repo-id")
    publish.add_argument("--allow-existing", action="store_true")
    return parser


def main() -> None:
    args = _parser().parse_args()
    root = args.root.resolve()
    if args.command == "prepare":
        result = prepare_corpus(root, scale=args.scale, seed=args.seed)
    elif args.command == "train":
        result = train_tokenizer(root, min_frequency=args.min_frequency)
    elif args.command == "benchmark":
        result = run_benchmark(
            root,
            limit_per_domain=args.limit_per_domain,
            repeats=args.repeats,
            include_morphological=not args.skip_morphological,
        )
    elif args.command == "compare":
        result = run_comparison(root, repeats=args.repeats)
    elif args.command == "render":
        result = render_reports(root, repository_id=args.repo_id)
    elif args.command == "validate":
        result = validate_release(root, require_benchmark_gate=not args.no_require_benchmark)
    elif args.command == "owner":
        result = {"owner": authenticated_owner()}
    elif args.command == "publish":
        result = publish_release(
            root,
            repo_id=args.repo_id,
            allow_existing=args.allow_existing,
        )
    else:  # pragma: no cover - argparse enforces subcommands
        raise AssertionError(args.command)
    _print_json(result)


if __name__ == "__main__":
    main()