"""Export / import de configuration (P1-3) — format compatible merge_params.

Pur : sérialisation/désérialisation et fusion, sans display ni filedialog.
"""
from __future__ import annotations

import json
from pathlib import Path

from gui_v6.config_share import build_export_payload, import_config_file


def test_export_payload_has_v5_schema():
    payload = build_export_payload(
        whitelist=["Dr Métier", "Service ORL"],
        blacklist=["DUPONT"],
        version="2026.06.29",
    )
    assert payload["version"] == "2026.06.29"
    assert "date_export" in payload
    assert payload["whitelist_phrases"] == ["Dr Métier", "Service ORL"]
    assert payload["blacklist_force_mask_terms"] == ["DUPONT"]


def test_export_payload_is_json_serializable():
    payload = build_export_payload(whitelist=["A"], blacklist=["B"], version="1")
    json.dumps(payload)  # ne doit pas lever


def test_import_merges_into_user_config(tmp_path, monkeypatch):
    cfg = tmp_path / "dictionnaires.yml"
    cfg.write_text("whitelist_phrases: [Existant]\n", encoding="utf-8")
    incoming = tmp_path / "recu.json"
    incoming.write_text(
        json.dumps({
            "version": "1", "date_export": "2026-06-29",
            "whitelist_phrases": ["Nouveau"],
            "blacklist_force_mask_terms": ["MASQUERMOI"],
        }),
        encoding="utf-8",
    )
    added = import_config_file(incoming, cfg)
    assert added is True
    import yaml
    merged = yaml.safe_load(cfg.read_text(encoding="utf-8"))
    assert "Existant" in merged["whitelist_phrases"]
    assert "Nouveau" in merged["whitelist_phrases"]
    assert "MASQUERMOI" in merged["blacklist"]["force_mask_terms"]


def test_import_returns_false_when_nothing_new(tmp_path):
    cfg = tmp_path / "dictionnaires.yml"
    cfg.write_text("whitelist_phrases: [Deja]\n", encoding="utf-8")
    incoming = tmp_path / "recu.json"
    incoming.write_text(
        json.dumps({"whitelist_phrases": ["Deja"], "blacklist_force_mask_terms": []}),
        encoding="utf-8",
    )
    assert import_config_file(incoming, cfg) is False


def test_import_preserves_unmanaged_yaml_keys(tmp_path):
    # Une config riche : l'import ne doit toucher QUE whitelist/blacklist,
    # et préserver toutes les autres sections (anti-perte de données).
    cfg = tmp_path / "dictionnaires.yml"
    cfg.write_text(
        "version: 3\n"
        "whitelist_phrases: [Existant]\n"
        "blacklist:\n"
        "  force_mask_terms: [DEJA]\n"
        "  autre_sous_cle: [GARDER]\n"
        "regex_overrides:\n"
        "  - rule_a\n"
        "flags:\n"
        "  strict: true\n",
        encoding="utf-8",
    )
    incoming = tmp_path / "recu.json"
    incoming.write_text(
        json.dumps({"whitelist_phrases": ["Nouveau"], "blacklist_force_mask_terms": ["MASQUERMOI"]}),
        encoding="utf-8",
    )
    assert import_config_file(incoming, cfg) is True
    import yaml
    merged = yaml.safe_load(cfg.read_text(encoding="utf-8"))
    # Clés non gérées intactes
    assert merged["version"] == 3
    assert merged["regex_overrides"] == ["rule_a"]
    assert merged["flags"] == {"strict": True}
    assert merged["blacklist"]["autre_sous_cle"] == ["GARDER"]
    # Listes gérées fusionnées
    assert "Existant" in merged["whitelist_phrases"]
    assert "Nouveau" in merged["whitelist_phrases"]
    assert "DEJA" in merged["blacklist"]["force_mask_terms"]
    assert "MASQUERMOI" in merged["blacklist"]["force_mask_terms"]