import json
from pathlib import Path

from docforge.cli.main import cli


def _write_spec(cwd, title="Aetoskia Auth Server", description="Auth docs"):
    spec = {
        "openapi": "3.1.0",
        "info": {
            "title": title,
            "description": description,
            "contact": {
                "name": "Aetoskia Dev Team",
                "email": "dev@aetoskia.com",
            },
            "version": "0.0.5",
        },
        "paths": {},
    }
    path = cwd / "openapi.json"
    path.write_text(json.dumps(spec), encoding="utf-8")
    return path


def test_api_build_full_flow(
    cli_runner,
    mock_mkdocs_build,
    mock_mkdocs_load_config,
):
    with cli_runner.isolated_filesystem():
        cwd = Path.cwd()

        spec_path = _write_spec(cwd)

        nav_file = cwd / "docforge.nav.yml"
        nav_file.write_text(
            "home: api/index.md\ngroups: {}\n"
            "icon:\n"
            "  logo: material/database\n"
            "  repo: fontawesome/brands/github\n",
            encoding="utf-8",
        )

        result = cli_runner.invoke(
            cli,
            ["build", "--api", "--openapi-spec", str(spec_path)],
        )

        assert result.exit_code == 0, result.output
        assert mock_mkdocs_build() is True

        api_dir = cwd / "docs" / "api"
        assert (api_dir / "openapi.json").exists()
        index = (api_dir / "index.md").read_text(encoding="utf-8")
        assert '<swagger-ui src="openapi.json"/>' in index

        config = (cwd / "docs" / "mkdocs.api.yml").read_text(encoding="utf-8")
        assert "docs_dir: api" in config
        assert "site_dir: ../site/api" in config
        assert "- API Reference: index.md" in config
        assert "site_name: Aetoskia Auth Server" in config
        assert "site_description: Auth docs" in config
        assert "site_author: Aetoskia Dev Team" in config
        assert "swagger-ui-tag" in config
        assert "logo: material/database" in config
        assert "repo: fontawesome/brands/github" in config


def test_api_build_missing_spec_fails(cli_runner):
    result = cli_runner.invoke(cli, ["build", "--api"])
    assert result.exit_code != 0
    assert "--openapi-spec is required" in result.output


def test_api_build_spec_not_found(cli_runner):
    result = cli_runner.invoke(cli, ["build", "--api", "--openapi-spec", "nope.json"])
    assert result.exit_code != 0
    assert "OpenAPI spec not found" in result.output


def test_api_build_rejects_site_name_override(cli_runner):
    with cli_runner.isolated_filesystem():
        cwd = Path.cwd()
        spec_path = _write_spec(cwd)

        result = cli_runner.invoke(
            cli,
            ["build", "--api", "--openapi-spec", str(spec_path), "--site-name", "X"],
        )
        assert result.exit_code != 0
        assert "cannot be overridden" in result.output


def test_api_build_combined_with_mkdocs_emits_separate_configs(
    cli_runner, mock_mkdocs_build, mock_mkdocs_load_config
):
    with cli_runner.isolated_filesystem():
        cwd = Path.cwd()

        pkg = cwd / "testpkg"
        pkg.mkdir()
        (pkg / "__init__.py").write_text("")
        (pkg / "mod.py").write_text("def f(): ...\n")

        spec_path = _write_spec(cwd)

        nav_file = cwd / "docforge.nav.yml"
        nav_file.write_text("home: lib/testpkg/index.md\ngroups: {}\n")

        result = cli_runner.invoke(
            cli,
            [
                "build",
                "--mkdocs",
                "--api",
                "--module",
                "testpkg",
                "--openapi-spec",
                str(spec_path),
            ],
        )

        assert result.exit_code == 0, result.output

        lib_config = cwd / "docs" / "mkdocs.lib.yml"
        api_config = cwd / "docs" / "mkdocs.api.yml"
        assert lib_config.exists()
        assert api_config.exists()

        lib_text = lib_config.read_text(encoding="utf-8")
        assert "docs_dir: lib" in lib_text
        assert "site_dir: ../site/lib" in lib_text
        assert "Home: testpkg/index.md" in lib_text

        api_text = api_config.read_text(encoding="utf-8")
        assert "docs_dir: api" in api_text
        assert "site_dir: ../site/api" in api_text
        assert "- API Reference: index.md" in api_text
        assert "site_name: Aetoskia Auth Server" in api_text
        assert "swagger-ui-tag" in api_text
        assert "mkdocstrings" in lib_text