"""
Quality check layer for translations.

Track A1 — L0 backend (observation only).
Pure Python, no new dependencies, no network calls.
Designed to be ADDITIVE: existing translation flow is untouched.

Public API:
    QualityCheckResult         — per-chunk result dataclass
    DocumentQualityResult      — aggregated result dataclass
    evaluate_chunk(...)        — score a single (source, translation) pair
    evaluate_document(...)     — score a list of pairs and aggregate
    run_l0_check(...)          — defensive wrapper used by the route
    extract_sample(...)        — extract text from a finished file
"""

from .script_detector import (
    QualityCheckResult,
    DocumentQualityResult,
    evaluate_chunk,
    evaluate_document,
    detect_arabic_variant,
)
from .pipeline import run_l0_check
from .file_extractor import extract_sample

__all__ = [
    "QualityCheckResult",
    "DocumentQualityResult",
    "evaluate_chunk",
    "evaluate_document",
    "detect_arabic_variant",
    "run_l0_check",
    "extract_sample",
]