import json
from pathlib import Path

from webapp.auth import load_users, set_user_language


def test_load_users_defaults_permissions_to_false(tmp_path: Path) -> None:
    users_file = tmp_path / "users.json"
    users_file.write_text(
        """
        {
          "users": [
            {
              "username": "viewer",
              "password_hash": "hash"
            }
          ]
        }
        """,
        encoding="utf-8",
    )

    users = load_users(users_file)

    assert users["viewer"]["password_hash"] == "hash"
    assert all(value is False for value in users["viewer"]["permissions"].values())
    assert users["viewer"]["language"] == "en"
    saved_payload = json.loads(users_file.read_text(encoding="utf-8"))
    saved_permissions = saved_payload["users"][0]["permissions"]
    assert all(saved_permissions[key] is False for key in saved_permissions)


def test_load_users_accepts_bool_like_permission_values(tmp_path: Path) -> None:
    users_file = tmp_path / "users.json"
    users_file.write_text(
        """
        {
          "users": [
            {
              "username": "editor",
              "password_hash": "hash",
              "permissions": {
                "edit_content": 1,
                "edit_targets": 1,
                "save_announcements": 1,
                "open_telegram": 1,
                "post_now": "true",
                "schedule": "yes",
                "unschedule": true
              }
            }
          ]
        }
        """,
        encoding="utf-8",
    )

    users = load_users(users_file)
    permissions = users["editor"]["permissions"]

    assert permissions["edit_content"] is True
    assert permissions["edit_targets"] is True
    assert permissions["save_announcements"] is True
    assert permissions["open_telegram"] is True
    assert permissions["post_now"] is True
    assert permissions["schedule"] is True
    assert permissions["unschedule"] is True
    assert permissions["unlink_telegram"] is False


def test_set_user_language_updates_users_file(tmp_path: Path) -> None:
    users_file = tmp_path / "users.json"
    users_file.write_text(
        """
        {
          "users": [
            {
              "username": "editor",
              "password_hash": "hash",
              "permissions": {}
            }
          ]
        }
        """,
        encoding="utf-8",
    )

    set_user_language(users_file, "editor", "fi")

    users = load_users(users_file)
    assert users["editor"]["language"] == "fi"


def test_load_users_accepts_auto_language(tmp_path: Path) -> None:
    users_file = tmp_path / "users.json"
    users_file.write_text(
        """
        {
          "users": [
            {
              "username": "auto_user",
              "password_hash": "hash",
              "language": "auto"
            }
          ]
        }
        """,
        encoding="utf-8",
    )

    users = load_users(users_file)

    assert users["auto_user"]["language"] == "auto"


def test_set_user_language_can_store_auto(tmp_path: Path) -> None:
    users_file = tmp_path / "users.json"
    users_file.write_text(
        """
        {
          "users": [
            {
              "username": "editor",
              "password_hash": "hash",
              "permissions": {}
            }
          ]
        }
        """,
        encoding="utf-8",
    )

    set_user_language(users_file, "editor", "auto")

    users = load_users(users_file)
    assert users["editor"]["language"] == "auto"


def test_load_users_adds_missing_permissions_to_existing_permissions_block(tmp_path: Path) -> None:
    users_file = tmp_path / "users.json"
    users_file.write_text(
        """
        {
          "users": [
            {
              "username": "editor",
              "password_hash": "hash",
              "permissions": {
                "edit_content": true
              }
            }
          ]
        }
        """,
        encoding="utf-8",
    )

    users = load_users(users_file)

    assert users["editor"]["permissions"]["edit_content"] is True
    assert users["editor"]["permissions"]["edit_targets"] is False
    assert users["editor"]["permissions"]["save_announcements"] is False
    assert users["editor"]["permissions"]["open_telegram"] is False
    saved_payload = json.loads(users_file.read_text(encoding="utf-8"))
    saved_permissions = saved_payload["users"][0]["permissions"]
    assert saved_permissions["edit_content"] is True
    assert saved_permissions["edit_targets"] is False
    assert saved_permissions["save_announcements"] is False
    assert saved_permissions["open_telegram"] is False
    assert saved_permissions["post_now"] is False
    assert saved_permissions["schedule"] is False
    assert saved_permissions["unschedule"] is False
    assert saved_permissions["unlink_telegram"] is False
    assert saved_permissions["delete_telegram"] is False
    assert saved_permissions["delete_storage"] is False


def test_load_users_removes_legacy_edit_broadcasts_permission(tmp_path: Path) -> None:
    users_file = tmp_path / "users.json"
    users_file.write_text(
        """
        {
          "users": [
            {
              "username": "editor",
              "password_hash": "hash",
              "permissions": {
                "edit_broadcasts": true
              }
            }
          ]
        }
        """,
        encoding="utf-8",
    )

    users = load_users(users_file)

    assert "edit_broadcasts" not in users["editor"]["permissions"]
    saved_payload = json.loads(users_file.read_text(encoding="utf-8"))
    saved_permissions = saved_payload["users"][0]["permissions"]
    assert "edit_broadcasts" not in saved_permissions