from __future__ import annotations

import json
from pathlib import Path

import pytest
from pydantic import ValidationError

from wf_mcp.broker import load_broker_config
from wf_mcp.cli import build_parser, main


def _write_config(path: Path) -> None:
    path.write_text(
        json.dumps(
            {
                "store_root": ".wf_mcp_store",
                "connections": [
                    {
                        "id": "demo.personal",
                        "server": "demo",
                        "account": "personal",
                    }
                ],
            }
        ),
        encoding="utf-8",
    )


def test_build_parser_accepts_serve_transport() -> None:
    parser = build_parser()
    args = parser.parse_args(
        [
            "--config",
            "wf_mcp.config.json",
            "serve",
            "--transport",
            "streamable_http",
        ]
    )

    assert args.command == "serve"
    assert args.transport == "streamable_http"
    assert args.resources_as_tools is False
    assert args.prompts_as_tools is False
    assert args.search_tools is False


def test_build_parser_accepts_proxy_compatibility_flags() -> None:
    parser = build_parser()
    args = parser.parse_args(
        [
            "--config",
            "wf_mcp.config.json",
            "serve",
            "--resources-as-tools",
            "--prompts-as-tools",
            "--search-tools",
            "--safe-tool-names",
        ]
    )

    assert args.command == "serve"
    assert args.resources_as_tools is True
    assert args.prompts_as_tools is True
    assert args.search_tools is True
    assert args.safe_tool_names is True


def test_build_parser_rejects_legacy_mode_flag() -> None:
    parser = build_parser()

    with pytest.raises(SystemExit):
        parser.parse_args(
            [
                "--config",
                "wf_mcp.config.json",
                "serve",
                "--mode",
                "unified",
            ]
        )


def test_build_parser_accepts_no_admin_tools_flag() -> None:
    parser = build_parser()
    args = parser.parse_args(
        [
            "--config",
            "wf_mcp.config.json",
            "serve",
            "--no-admin-tools",
        ]
    )

    assert args.command == "serve"
    assert args.admin_tools is False


def test_cli_connections_prints_configured_connections(
    capsys: pytest.CaptureFixture[str], tmp_path: Path
) -> None:
    tmp_path = tmp_path / "cli_connections_test"
    tmp_path.mkdir(parents=True, exist_ok=True)
    config_path = tmp_path / "wf_mcp.config.json"
    _write_config(config_path)

    exit_code = main(["--config", str(config_path), "connections"])
    captured = capsys.readouterr()

    assert exit_code == 0
    payload = json.loads(captured.out)
    assert payload[0]["id"] == "demo.personal"


def test_cli_catalog_prints_empty_catalog_when_not_refreshed(
    capsys: pytest.CaptureFixture[str], tmp_path: Path
) -> None:
    tmp_path = tmp_path / "cli_catalog_test"
    tmp_path.mkdir(parents=True, exist_ok=True)
    config_path = tmp_path / "wf_mcp.config.json"
    _write_config(config_path)

    exit_code = main(["--config", str(config_path), "catalog"])
    captured = capsys.readouterr()

    assert exit_code == 0
    payload = json.loads(captured.out)
    assert payload["nodes"] == []
    assert payload["resources"] == []
    assert payload["prompts"] == []


def test_cli_status_prints_connection_statuses(
    capsys: pytest.CaptureFixture[str], tmp_path: Path
) -> None:
    tmp_path = tmp_path / "cli_status_test"
    tmp_path.mkdir(parents=True, exist_ok=True)
    config_path = tmp_path / "wf_mcp.config.json"
    _write_config(config_path)

    exit_code = main(["--config", str(config_path), "status"])
    captured = capsys.readouterr()

    assert exit_code == 0
    payload = json.loads(captured.out)
    assert payload == [
        {
            "connection_id": "demo.personal",
            "server": "demo",
            "account": "personal",
            "enabled": True,
            "has_snapshot": False,
            "fetched_at_epoch_ms": None,
            "max_age_seconds": None,
            "node_count": 0,
            "resource_count": 0,
            "prompt_count": 0,
        }
    ]


def test_load_broker_config_normalizes_typed_stdio_metadata(tmp_path: Path) -> None:
    tmp_path = tmp_path / "cli_typed_stdio_config_test"
    tmp_path.mkdir(parents=True, exist_ok=True)
    config_path = tmp_path / "wf_mcp.config.json"
    config_path.write_text(
        json.dumps(
            {
                "store_root": ".wf_mcp_store",
                "connections": [
                    {
                        "id": "demo.personal",
                        "server": "demo",
                        "account": "personal",
                        "metadata": {
                            "command": "python",
                            "args": ["server.py"],
                            "env": {"TOKEN": "secret"},
                        },
                    }
                ],
            }
        ),
        encoding="utf-8",
    )

    config = load_broker_config(config_path)

    assert config.store_root == (tmp_path / ".wf_mcp_store").resolve()
    assert config.connections[0].metadata == {
        "transport": "stdio",
        "command": "python",
        "args": ["server.py"],
        "env": {"TOKEN": "secret"},
    }


def test_load_broker_config_rejects_bad_metadata_shape(tmp_path: Path) -> None:
    tmp_path = tmp_path / "cli_bad_config_test"
    tmp_path.mkdir(parents=True, exist_ok=True)
    config_path = tmp_path / "wf_mcp.config.json"
    config_path.write_text(
        json.dumps(
            {
                "connections": [
                    {
                        "id": "demo.personal",
                        "server": "demo",
                        "account": "personal",
                        "metadata": {"transport": "stdio", "args": "server.py"},
                    }
                ],
            }
        ),
        encoding="utf-8",
    )

    with pytest.raises(ValidationError):
        load_broker_config(config_path)