from pathlib import Path
from types import SimpleNamespace
import sys

from click.testing import CliRunner
from unittest.mock import patch

from browser_cli.cli import main, _project_version
from browser_cli.client import BrowserTarget
from browser_cli.commands.extract import _clean_markdown_output, _convert_html_to_markdown

def _expected_version() -> str:
    pyproject = Path(__file__).resolve().parent.parent / "pyproject.toml"
    for line in pyproject.read_text(encoding="utf-8").splitlines():
        if line.startswith("version = "):
            return line.split('"')[1]
    raise AssertionError("version not found in pyproject.toml")

def test_short_version_option():
    result = CliRunner().invoke(main, ["-V"])
    assert result.exit_code == 0
    assert result.output.strip() == _expected_version()

def test_long_version_option():
    result = CliRunner().invoke(main, ["--version"])
    assert result.exit_code == 0
    assert result.output.strip() == _expected_version()

def test_project_version_falls_back_to_installed_package_metadata():
    with patch("browser_cli.cli.Path.read_text", side_effect=OSError), patch(
        "browser_cli.cli.package_version", return_value="9.9.9"
    ):
        assert _project_version() == "9.9.9"

def test_clients_rename_uses_command_level_browser_target():
    with patch("browser_cli.cli.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json")), patch(
        "browser_cli.cli.send_command"
    ) as send_command:
        result = CliRunner().invoke(main, ["clients", "rename", "--browser", "old-id", "work"])

    assert result.exit_code == 0
    send_command.assert_called_once_with("clients.rename_profile", {"alias": "work"}, profile="old-id")

def test_clients_rename_uses_global_browser_target_when_set():
    with patch("browser_cli.cli.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json")), patch(
        "browser_cli.cli.send_command"
    ) as send_command:
        result = CliRunner().invoke(main, ["--browser", "old-id", "clients", "rename", "work"])

    assert result.exit_code == 0
    send_command.assert_called_once_with("clients.rename_profile", {"alias": "work"}, profile=None)
    assert "Restart the browser" not in result.output

def test_clients_rename_rejects_duplicate_alias(tmp_path):
    registry_path = tmp_path / "registry.json"
    registry_path.write_text('{"work": "/tmp/work.sock", "old-id": "/tmp/old-id.sock"}', encoding="utf-8")

    with patch("browser_cli.cli.REGISTRY_PATH", registry_path), patch("browser_cli.cli.send_command") as send_command:
        result = CliRunner().invoke(main, ["clients", "rename", "--browser", "old-id", "work"])

    assert result.exit_code != 0
    assert "Browser alias 'work' already exists" in result.output
    send_command.assert_not_called()

def test_clients_rename_allows_same_alias_for_same_target(tmp_path):
    registry_path = tmp_path / "registry.json"
    registry_path.write_text('{"work": "/tmp/work.sock"}', encoding="utf-8")

    with patch("browser_cli.cli.REGISTRY_PATH", registry_path), patch("browser_cli.cli.send_command") as send_command:
        result = CliRunner().invoke(main, ["clients", "rename", "--browser", "work", "work"])

    assert result.exit_code == 0
    send_command.assert_called_once_with("clients.rename_profile", {"alias": "work"}, profile="work")

def test_install_help_lists_supported_browsers():
    result = CliRunner().invoke(main, ["install", "--help"])

    assert result.exit_code == 0
    assert "[chrome|chromium|brave|edge|vivaldi]" in result.output


def test_install_windows_registers_native_host(tmp_path, monkeypatch):
    local_app_data = tmp_path / "LocalAppData"
    extension_dir = tmp_path / "extension"
    extension_dir.mkdir()
    native_host_src = tmp_path / "native_host.py"
    native_host_src.write_text("print('ok')", encoding="utf-8")
    writes = []

    class FakeKey:
        def __init__(self, path):
            self.path = path

        def __enter__(self):
            return self

        def __exit__(self, exc_type, exc, tb):
            return False

    fake_winreg = SimpleNamespace(
        HKEY_CURRENT_USER="HKCU",
        KEY_WRITE=0x20006,
        KEY_WOW64_32KEY=0x0200,
        KEY_WOW64_64KEY=0x0100,
        REG_SZ=1,
    )

    def fake_create_key(root, path, reserved, access):
        return FakeKey(path)

    def fake_set_value(key, name, reserved, reg_type, value):
        writes.append((key.path, name, value))

    fake_winreg.CreateKeyEx = fake_create_key
    fake_winreg.SetValueEx = fake_set_value

    monkeypatch.setenv("LOCALAPPDATA", str(local_app_data))

    with patch("browser_cli.cli.is_windows", return_value=True), patch(
        "browser_cli.cli.Path.home", return_value=tmp_path
    ), patch("browser_cli.cli.click.prompt", return_value="abc123"), patch(
        "browser_cli.cli.shutil.copy2"
    ) as copy2, patch("browser_cli.cli.Path.write_text") as write_text, patch.dict(
        sys.modules, {"winreg": fake_winreg}
    ):
        copy2.side_effect = lambda src, dst: Path(dst).write_text(native_host_src.read_text(encoding="utf-8"), encoding="utf-8")
        result = CliRunner().invoke(main, ["install", "edge"])

    assert result.exit_code == 0
    assert any("Software\\Microsoft\\Edge\\NativeMessagingHosts\\com.browsercli.host" in path for path, _, _ in writes)
    assert "Registered native host" in result.output
    assert "Wrote native host manifest" in result.output
    wrapper_writes = [call.args[0] for call in write_text.call_args_list if call.args]
    assert any("@echo off" in text for text in wrapper_writes)

def test_clients_exits_cleanly_when_registry_is_missing():
    with patch("browser_cli.cli.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json")):
        result = CliRunner().invoke(main, ["clients"])

    assert result.exit_code == 1
    assert "No browser clients found" in result.output

def test_clients_shows_named_profile_and_uses_socket_uuid_for_default(tmp_path):
    registry_path = tmp_path / "registry.json"
    default_socket = tmp_path / "550e8400-e29b-41d4-a716-446655440000.sock"
    work_socket = tmp_path / "work.sock"
    registry_path.write_text(
        '{"default": "%s", "work": "%s"}' % (default_socket, work_socket),
        encoding="utf-8",
    )

    responses = {
        "default": [{"profile": "default", "name": "Chrome", "version": "1", "extensionVersion": "2.3.4"}],
        "work": [{"profile": "default", "name": "Chrome", "version": "1", "extensionVersion": "2.3.4"}],
    }

    def fake_send_command(command, args=None, profile=None):
        assert command == "clients.list"
        return responses[profile]

    with patch("browser_cli.cli.REGISTRY_PATH", registry_path), patch(
        "browser_cli.cli.send_command", side_effect=fake_send_command
    ):
        result = CliRunner().invoke(main, ["clients"])

    assert result.exit_code == 0
    assert "550e8400-e29b-41d4-a716-446655440000" in result.output
    assert "work" in result.output
    assert "Extension Version" in result.output
    assert "2.3.4" in result.output


def test_tabs_list_multi_browser_shows_browser_column():
    def fake_send_command(command, args=None, profile=None):
        assert command == "tabs.list"
        return [{"id": 1 if profile == "default" else 2, "windowId": 1, "active": True, "title": profile, "url": "https://example.com"}]

    with patch(
        "browser_cli.commands.tabs.active_browser_targets",
        return_value=[
            BrowserTarget("default", "550e8400-e29b-41d4-a716-446655440000", "/tmp/default.sock"),
            BrowserTarget("work", "work", "/tmp/work.sock"),
        ],
    ), patch("browser_cli.commands.tabs.send_command", side_effect=fake_send_command):
        result = CliRunner().invoke(main, ["tabs", "list"])

    assert result.exit_code == 0
    assert "Browser" in result.output
    assert "550e8400-e29b-41d4-a716-446655440000" in result.output
    assert "work" in result.output


def test_tabs_list_with_explicit_browser_does_not_show_browser_column():
    with patch(
        "browser_cli.commands.tabs.active_browser_targets",
        return_value=[
            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
            BrowserTarget("work", "work", "/tmp/work.sock"),
        ],
    ), patch(
        "browser_cli.commands.tabs.send_command",
        return_value=[{"id": 1, "windowId": 1, "active": True, "title": "Example", "url": "https://example.com"}],
    ) as send_command:
        result = CliRunner().invoke(main, ["--browser", "work", "tabs", "list"])

    assert result.exit_code == 0
    assert "Browser" not in result.output
    send_command.assert_called_once_with("tabs.list", {}, profile=None)


def test_tabs_count_multi_browser_shows_total():
    counts = {"default": 3, "work": 4}

    def fake_send_command(command, args=None, profile=None):
        assert command == "tabs.count"
        assert args == {"pattern": "github"}
        return counts[profile]

    with patch(
        "browser_cli.commands.tabs.active_browser_targets",
        return_value=[
            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
            BrowserTarget("work", "work", "/tmp/work.sock"),
        ],
    ), patch("browser_cli.commands.tabs.send_command", side_effect=fake_send_command):
        result = CliRunner().invoke(main, ["tabs", "count", "github"])

    assert result.exit_code == 0
    assert "Browser" in result.output
    assert "Total" in result.output
    assert "7" in result.output


def test_group_count_multi_browser_shows_total():
    counts = {"default": 1, "work": 2}

    def fake_send_command(command, args=None, profile=None):
        assert command == "group.count"
        return counts[profile]

    with patch(
        "browser_cli.commands.groups.active_browser_targets",
        return_value=[
            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
            BrowserTarget("work", "work", "/tmp/work.sock"),
        ],
    ), patch("browser_cli.commands.groups.send_command", side_effect=fake_send_command):
        result = CliRunner().invoke(main, ["groups", "count"])

    assert result.exit_code == 0
    assert "Browser" in result.output
    assert "Total" in result.output
    assert "3" in result.output


def test_group_list_leaves_unnamed_group_cell_empty():
    with patch(
        "browser_cli.commands.groups.send_command",
        return_value=[{"id": 42, "title": "", "color": "grey", "collapsed": False, "tabCount": 1}],
    ):
        result = CliRunner().invoke(main, ["groups", "list"])

    assert result.exit_code == 0
    assert "(unnamed)" not in result.output
    assert "42" in result.output
    assert "grey" in result.output


def test_tabs_move_accepts_right_short_alias():
    with patch("browser_cli.commands.tabs.send_command") as send_command:
        result = CliRunner().invoke(main, ["tabs", "move", "12", "-r"])

    assert result.exit_code == 0
    send_command.assert_called_once_with(
        "tabs.move",
        {"tabId": 12, "forward": True, "backward": False, "groupId": None, "windowId": None, "index": None},
        profile=None,
    )


def test_groups_move_accepts_left_short_alias():
    with patch("browser_cli.commands.groups.send_command") as send_command:
        result = CliRunner().invoke(main, ["groups", "move", "research", "-l"])

    assert result.exit_code == 0
    send_command.assert_called_once_with(
        "group.move", {"group": "research", "forward": False, "backward": True}, profile=None
    )



def test_windows_list_multi_browser_shows_browser_column():
    def fake_send_command(command, args=None, profile=None):
        assert command == "windows.list"
        return [{"id": 1, "alias": profile, "focused": True, "tabCount": 2, "state": "normal"}]

    with patch(
        "browser_cli.commands.windows.active_browser_targets",
        return_value=[
            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
            BrowserTarget("work", "work", "/tmp/work.sock"),
        ],
    ), patch("browser_cli.commands.windows.send_command", side_effect=fake_send_command):
        result = CliRunner().invoke(main, ["windows", "list"])

    assert result.exit_code == 0
    assert "Browser" in result.output
    assert "Focused" not in result.output
    assert "uuid-1" in result.output
    assert "work" in result.output


def test_session_list_multi_browser_shows_browser_column():
    def fake_send_command(command, args=None, profile=None):
        assert command == "session.list"
        return [{"name": f"{profile}-session", "tabs": 2, "savedAt": 1712707200000}]

    with patch(
        "browser_cli.commands.session.active_browser_targets",
        return_value=[
            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
            BrowserTarget("work", "work", "/tmp/work.sock"),
        ],
    ), patch("browser_cli.commands.session.send_command", side_effect=fake_send_command):
        result = CliRunner().invoke(main, ["session", "list"])

    assert result.exit_code == 0
    assert "Browser" in result.output
    assert "uuid-1" in result.output
    assert "work" in result.output
    assert "default-session" in result.output
    assert "work-session" in result.output


def test_session_list_with_explicit_browser_does_not_show_browser_column():
    with patch(
        "browser_cli.commands.session.active_browser_targets",
        return_value=[
            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
            BrowserTarget("work", "work", "/tmp/work.sock"),
        ],
    ), patch(
        "browser_cli.commands.session.send_command",
        return_value=[{"name": "work-session", "tabs": 2, "savedAt": 1712707200000}],
    ) as send_command:
        result = CliRunner().invoke(main, ["--browser", "work", "session", "list"])

    assert result.exit_code == 0
    assert "Browser" not in result.output
    send_command.assert_called_once_with("session.list", {}, profile=None)


def test_windows_open_passes_url():
    with patch("browser_cli.commands.windows.send_command", return_value={"id": 7}) as send_command:
        result = CliRunner().invoke(main, ["windows", "open", "https://example.com"])

    assert result.exit_code == 0
    assert "https://example.com" in result.output
    send_command.assert_called_once_with("windows.open", {"url": "https://example.com"}, profile=None)

def test_extract_markdown_command():
    with patch("browser_cli.commands.extract.send_command", return_value="# Title") as send_command:
        result = CliRunner().invoke(main, ["extract", "markdown"])

    assert result.exit_code == 0
    assert result.output == "# Title\n"
    send_command.assert_called_once_with("extract.markdown", {"selector": None})

def test_extract_markdown_command_with_selector():
    with patch("browser_cli.commands.extract.send_command", return_value="## Post") as send_command:
        result = CliRunner().invoke(main, ["extract", "markdown", "--selector", "article"])

    assert result.exit_code == 0
    assert result.output == "## Post\n"
    send_command.assert_called_once_with("extract.markdown", {"selector": "article"})


def test_clean_markdown_output_removes_escaped_underscores_and_dashes():
    assert _clean_markdown_output(r"hello\_world \- item") == "hello_world - item"


def test_clean_markdown_output_trims_useless_whitespace():
    raw = "  # Title  \n\n\n  paragraph with space  \n   next line\t \n"
    assert _clean_markdown_output(raw) == "# Title\n\nparagraph with space\nnext line"


def test_clean_markdown_output_repairs_empty_table_header_rows():
    raw = (
        "|  |  |  |\n"
        "| --- | --- | --- |\n"
        "| Bereich | Plan | Ist |\n"
        "| A | B | C |\n"
    )
    assert _clean_markdown_output(raw) == (
        "| Bereich | Plan | Ist |\n"
        "| --- | --- | --- |\n"
        "| A | B | C |"
    )


def test_clean_markdown_output_preserves_graph_code_blocks():
    raw = "```\n\nA\n  │\n  ▼\nB\n\n```"
    assert _clean_markdown_output(raw) == "```\nA\n  │\n  ▼\nB\n```"


def test_clean_markdown_output_renders_code_block_list_branches():
    raw = "```\nPlattformen\n- Omnifact\n- Open WebUI + Ollama\n- Le Chat\n```"
    assert _clean_markdown_output(raw) == (
        "```\n"
        "Plattformen\n"
        "├ Omnifact\n"
        "├ Open WebUI + Ollama\n"
        "└ Le Chat\n"
        "```"
    )


def test_clean_markdown_output_unflattens_graph_code_blocks():
    raw = (
        "```\n"
        "Golden Set   │   ▼Promptfoo(Testausführung)   │   ▼UpTrain(Qualitätsbewertung)   │   "
        "▼Langfuse(Logging / Observability)   │   ▼Plattformen├ Omnifact├ Open WebUI + Ollama└ Le Chat\n"
        "```"
    )
    assert _clean_markdown_output(raw) == (
        "```\n"
        "Golden Set\n"
        "   │\n"
        "   ▼\n"
        "Promptfoo\n"
        "(Testausführung)\n"
        "   │\n"
        "   ▼\n"
        "UpTrain\n"
        "(Qualitätsbewertung)\n"
        "   │\n"
        "   ▼\n"
        "Langfuse\n"
        "(Logging / Observability)\n"
        "   │\n"
        "   ▼\n"
        "Plattformen\n"
        "├ Omnifact\n"
        "├ Open WebUI + Ollama\n"
        "└ Le Chat\n"
        "```"
    )


def test_extract_markdown_command_repairs_malformed_tables_and_code_blocks():
    raw = (
        "|  |  |  |\n"
        "| --- | --- | --- |\n"
        "| Bereich | Plan | Ist |\n"
        "| Eval-Stack | Testumgebung | funktionsfähig |\n\n"
        "```\n"
        "Golden Set   │   ▼Promptfoo(Testausführung)   │   ▼Plattformen├ Omnifact└ Le Chat\n"
        "```"
    )
    with patch("browser_cli.commands.extract.send_command", return_value=raw):
        result = CliRunner().invoke(main, ["extract", "markdown"])

    assert result.exit_code == 0
    assert "| Bereich | Plan | Ist |" in result.output
    assert "|  |  |  |" not in result.output
    assert "Golden Set\n   │\n   ▼\nPromptfoo\n(Testausführung)" in result.output
    assert "├ Omnifact" in result.output
    assert "└ Le Chat" in result.output


def test_convert_html_to_markdown_normalizes_blank_table_header_rows():
    html = """
    <main>
      <table>
        <tr><td></td><td></td><td></td><td></td></tr>
        <tr><td>Risiko</td><td>Beschreibung</td><td>Auswirkung</td><td>Gegenmaßnahme</td></tr>
        <tr><td>Datenschutz</td><td>X</td><td>Y</td><td>Z</td></tr>
      </table>
    </main>
    """
    markdown = _convert_html_to_markdown(html)
    assert "| Risiko | Beschreibung | Auswirkung | Gegenmaßnahme |" in markdown
    assert "|  |  |  |  |" not in markdown


def test_convert_html_to_markdown_preserves_codemirror_graph_blocks():
    html = """
    <main>
      <h1>Teil 5 - Eval-Stack Architektur</h1>
      <div class="cm-editor" data-is-code-block-view="true" contenteditable="false">
        <div class="cm-line">Golden Set</div>
        <div class="cm-line">   │</div>
        <div class="cm-line">   ▼</div>
        <div class="cm-line">Promptfoo</div>
        <div class="cm-line">(Testausführung)</div>
        <div class="cm-line">   │</div>
        <div class="cm-line">   ▼</div>
        <div class="cm-line">Plattformen</div>
        <div class="cm-line">- Omnifact</div>
        <div class="cm-line">- Open WebUI + Ollama</div>
        <div class="cm-line">- Le Chat</div>
      </div>
    </main>
    """
    markdown = _convert_html_to_markdown(html)
    assert "```\nGolden Set\n   │\n   ▼\nPromptfoo" in markdown
    assert "├ Omnifact" in markdown
    assert "└ Le Chat" in markdown


def test_convert_html_to_markdown_indents_multiline_list_items():
    html = """
    <main>
      <h2>2. <strong>Zielarchitektur</strong></h2>
      <ul>
        <li>
          <p>Unternehmensdaten → RAG → KI-Orchestrierung →<br>Local LLMs / API Modelle / Spezialmodelle</p>
        </li>
      </ul>
    </main>
    """
    markdown = _convert_html_to_markdown(html)
    assert (
        "- Unternehmensdaten → RAG → KI-Orchestrierung →\n"
        "  Local LLMs / API Modelle / Spezialmodelle"
    ) in markdown