"""Tests for the ``jarvis add`` CLI command."""

from __future__ import annotations

import json
from pathlib import Path
from unittest import mock

from click.testing import CliRunner

from openjarvis.cli.add_cmd import _MCP_TEMPLATES, add


class TestAddCmd:
    def test_add_help(self) -> None:
        result = CliRunner().invoke(add, ["--help"])
        assert result.exit_code == 0
        assert "MCP server" in result.output

    def test_add_unknown_server(self) -> None:
        result = CliRunner().invoke(add, ["unknown_server"])
        assert result.exit_code != 0
        assert "Unknown MCP server" in result.output
        # Should list known servers
        assert "github" in result.output
        assert "filesystem" in result.output

    def test_add_known_server(self, tmp_path: Path) -> None:
        mcp_dir = tmp_path / "mcp"
        with mock.patch("openjarvis.cli.add_cmd._MCP_CONFIG_DIR", mcp_dir):
            result = CliRunner().invoke(add, ["filesystem"])
            assert result.exit_code == 0
            assert "Added MCP server: filesystem" in result.output

            config_file = mcp_dir / "filesystem.json"
            assert config_file.exists()
            data = json.loads(config_file.read_text())
            assert data["command"] == "npx"
            assert "@modelcontextprotocol/server-filesystem" in data["args"]

    def test_add_with_key(self, tmp_path: Path) -> None:
        mcp_dir = tmp_path / "mcp"
        with mock.patch("openjarvis.cli.add_cmd._MCP_CONFIG_DIR", mcp_dir):
            result = CliRunner().invoke(
                add,
                ["github", "--key", "test_token"],
            )
            assert result.exit_code == 0

            config_file = mcp_dir / "github.json"
            assert config_file.exists()
            data = json.loads(config_file.read_text())
            assert "env" in data
            assert data["env"]["GITHUB_PERSONAL_ACCESS_TOKEN"] == "test_token"

    def test_mcp_templates_complete(self) -> None:
        required_fields = {"command", "args", "env_key", "description"}
        for name, tmpl in _MCP_TEMPLATES.items():
            assert required_fields.issubset(tmpl.keys()), (
                f"Template '{name}' missing fields: {required_fields - tmpl.keys()}"
            )