import pytest
from pydantic import ValidationError

from app.mcp.config import McpSettings


ISSUER = "http://192.168.1.114:8088/realms/tjwater"


def local_settings(**overrides):
    return McpSettings(**{
        "enabled": True,
        "environment": "development",
        "issuer_uri": ISSUER,
        "dev_http_issuer_uri": ISSUER,
        "resource_uri": "http://localhost/mcp",
        "_env_file": None,
        **overrides,
    })


def test_explicit_private_development_issuer():
    assert local_settings().issuer_uri == ISSUER


def test_calculation_limit_covers_default_without_extending_ordinary_queries():
    config = local_settings(max_calculation_timeout_seconds=120)
    assert config.query_timeout_seconds == 30
    with pytest.raises(ValidationError):
        local_settings(max_calculation_timeout_seconds=119)


@pytest.mark.parametrize("overrides", [
    {"environment": "production"},
    {"environment": "production", "enabled": False},
    {"dev_http_issuer_uri": ""},
    {"issuer_uri": ISSUER + "/other"},
    {"resource_uri": "http://192.168.1.114:8088/mcp"},
    {"issuer_uri": "http://example.com/realm", "dev_http_issuer_uri": "http://example.com/realm"},
    {"issuer_uri": "http://8.8.8.8/realm", "dev_http_issuer_uri": "http://8.8.8.8/realm"},
    {"issuer_uri": ISSUER + "?query=1", "dev_http_issuer_uri": ISSUER + "?query=1"},
])
def test_rejects_unapproved_http_issuer_or_resource(overrides):
    with pytest.raises(ValidationError):
        local_settings(**overrides)


def test_development_mode_can_be_injected_from_environment(monkeypatch):
    monkeypatch.setenv("ENVIRONMENT", "development")
    monkeypatch.setenv("TJWATER_MCP_DEV_HTTP_ISSUER_URI", ISSUER)
    monkeypatch.setenv("TJWATER_MCP_ISSUER_URI", ISSUER)
    config = McpSettings(enabled=True, resource_uri="http://localhost/mcp", _env_file=None)
    assert config.environment == "development"