"""Test end-to-end: pipeline completa su PDF reali da sources/."""
import json
import shutil
import pytest
from pathlib import Path

from conversione._pipeline import run


PROJECT_ROOT = Path(__file__).parent.parent.parent


def _sources_available(stem: str) -> bool:
    return (PROJECT_ROOT / "sources" / f"{stem}.pdf").exists()


@pytest.mark.skipif(not _sources_available("bitcoin"), reason="sources/bitcoin.pdf non disponibile")
def test_bitcoin_produces_clean_md(tmp_path, monkeypatch):
    """Pipeline completa su bitcoin.pdf — verifica output strutturato."""
    # Usa tmp_path come output per non inquinare il repo
    out_dir = tmp_path / "conversione" / "bitcoin"
    out_dir.mkdir(parents=True)
    sources_dir = tmp_path / "sources"
    sources_dir.mkdir()
    shutil.copy(PROJECT_ROOT / "sources" / "bitcoin.pdf", sources_dir / "bitcoin.pdf")

    ok = run("bitcoin", tmp_path, force=True)
    assert ok, "La pipeline deve completare senza errori"

    clean_md = out_dir / "clean.md"
    assert clean_md.exists(), "clean.md deve essere creato"

    text = clean_md.read_text(encoding="utf-8")
    assert len(text) > 1000, "clean.md deve avere contenuto significativo"
    assert "#" in text, "clean.md deve avere almeno un header"

    report = json.loads((out_dir / "report.json").read_text(encoding="utf-8"))
    assert report["structure"]["livello_struttura"] >= 1, "Struttura deve avere almeno livello 1"


@pytest.mark.skipif(not _sources_available("bitcoin"), reason="sources/bitcoin.pdf non disponibile")
def test_determinism(tmp_path):
    """Due run consecutive sullo stesso PDF producono output identico."""
    sources_dir = tmp_path / "sources"
    sources_dir.mkdir()
    shutil.copy(PROJECT_ROOT / "sources" / "bitcoin.pdf", sources_dir / "bitcoin.pdf")

    run("bitcoin", tmp_path, force=True)
    first = (tmp_path / "conversione" / "bitcoin" / "clean.md").read_text()

    run("bitcoin", tmp_path, force=True)
    second = (tmp_path / "conversione" / "bitcoin" / "clean.md").read_text()

    assert first == second, "Output deve essere deterministico tra due run"


@pytest.mark.skipif(not _sources_available("codice_civile"), reason="sources/codice_civile.pdf non disponibile")
def test_codice_civile_has_articles(tmp_path):
    """Il Codice Civile deve produrre header con 'Art.'."""
    sources_dir = tmp_path / "sources"
    sources_dir.mkdir()
    shutil.copy(PROJECT_ROOT / "sources" / "codice_civile.pdf", sources_dir / "codice_civile.pdf")

    ok = run("codice_civile", tmp_path, force=True)
    assert ok

    text = (tmp_path / "conversione" / "codice_civile" / "clean.md").read_text()
    assert "Art." in text, "clean.md del codice civile deve contenere articoli"