# -*- coding: utf-8 -*-
"""task-2686 regression — anu_normal_callback_envelope_v1 schema 3 field 검증.

회장 verbatim 5번 (★ envelope schema 3 field 추가):
  - chair_facing_session_id (필수)
  - collector_session_id (선택, 누락 가능 — Tier 1 doctrine 호환)
  - delivery_session_id (선택, 누락 가능)

schema 파일이 위 3 field 정의를 포함하는지 / required 에 chair_facing_session_id
가 들어있는지 / UUID pattern 이 cokacdir --session UUID 형식과 일치하는지 검증.
"""
from __future__ import annotations

import json
from pathlib import Path

import pytest

_ROOT = Path(__file__).resolve().parents[3]
_SCHEMA_PATH = _ROOT / "schemas" / "anu_normal_callback_envelope_v1.json"


@pytest.fixture(scope="module")
def schema() -> dict:
    assert _SCHEMA_PATH.exists(), f"schema file missing: {_SCHEMA_PATH}"
    return json.loads(_SCHEMA_PATH.read_text(encoding="utf-8"))


def test_schema_has_three_session_fields(schema):
    props = schema.get("properties", {})
    assert "chair_facing_session_id" in props, "회장 verbatim 5번 필드 1/3 누락"
    assert "collector_session_id" in props, "회장 verbatim 5번 필드 2/3 누락"
    assert "delivery_session_id" in props, "회장 verbatim 5번 필드 3/3 누락"


def test_schema_session_fields_use_uuid_pattern(schema):
    props = schema["properties"]
    uuid_re = (
        "^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-"
        "[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$"
    )
    for field_name in (
        "chair_facing_session_id",
        "collector_session_id",
        "delivery_session_id",
    ):
        assert props[field_name].get("pattern") == uuid_re, (
            f"{field_name} pattern 이 UUID 형식과 불일치: {props[field_name]}"
        )


def test_schema_chair_facing_is_required(schema):
    required = set(schema.get("required", []))
    assert "chair_facing_session_id" in required, (
        "chair_facing_session_id 는 envelope 필수 field (★ task-2686 회장 verbatim 5번)."
    )


def test_schema_owner_key_pinned_to_anu(schema):
    """ANCHOR-2 (key authority != session continuity) — owner_key 는 ANU key 고정."""
    owner = schema["properties"]["owner_key"]
    assert owner.get("const") == "c119085addb0f8b7", (
        "envelope owner_key 는 ANU key 고정 (self-key fail-closed)."
    )


def test_schema_collector_role_anu_only(schema):
    role = schema["properties"]["collector_role"]
    assert role.get("enum") == ["ANU"], (
        "collector_role enum 은 ['ANU'] 단일 (회장 §10)."
    )


def test_schema_no_additional_properties(schema):
    """additionalProperties=false → envelope schema 가 의도치 않은 필드 묵인 차단."""
    assert schema.get("additionalProperties") is False