"""Test portals.json integrity — valid JSON, no duplicate keys, expected structure."""

from pathlib import Path
import json


def test_portals_json_valid():
    """portals.json must be valid JSON."""
    path = Path(__file__).resolve().parents[1] / "portals.json"
    data = json.loads(path.read_text(encoding="utf-8"))
    assert isinstance(data, list), "portals.json should be a JSON array"


def test_portals_json_no_duplicate_keys():
    """portals.json must not contain duplicate keys in any object."""
    path = Path(__file__).resolve().parents[1] / "portals.json"
    content = path.read_text(encoding="utf-8")

    def check_duplicates(pairs):
        keys = [k for k, _ in pairs]
        seen = set()
        for k in keys:
            assert k not in seen, f"Duplicate key '{k}' found in portals.json"
            seen.add(k)
        return dict(pairs)

    json.loads(content, object_pairs_hook=check_duplicates)


def test_portals_json_structure():
    """Each portal entry must have required fields."""
    path = Path(__file__).resolve().parents[1] / "portals.json"
    data = json.loads(path.read_text(encoding="utf-8"))

    required = {"id", "name", "description", "status", "color", "position"}
    for i, portal in enumerate(data):
        assert isinstance(portal, dict), f"Portal [{i}] is not a dict"
        missing = required - set(portal.keys())
        assert not missing, f"Portal [{i}] ({portal.get('id', '?')}) missing fields: {missing}"


def test_portals_json_positions_valid():
    """Each portal position must have x, y, z coordinates."""
    path = Path(__file__).resolve().parents[1] / "portals.json"
    data = json.loads(path.read_text(encoding="utf-8"))

    for i, portal in enumerate(data):
        pos = portal.get("position", {})
        for axis in ("x", "y", "z"):
            assert axis in pos, f"Portal [{i}] ({portal.get('id')}) missing position.{axis}"
            assert isinstance(pos[axis], (int, float)), f"Portal [{i}] position.{axis} is not a number"