"""Step definitions for tui_materializer.feature."""

from __future__ import annotations

import threading
from typing import Any

from behave import given, then, when  # type: ignore[import-untyped]


# ---------------------------------------------------------------------------
# Background
# ---------------------------------------------------------------------------


@given("the tui materializer module is imported")
def step_import_tui_materializer(context: Any) -> None:
    from cleveragents.tui.materializer import (
        TuiMaterializer,
        TuiWidgetEvent,
        TuiWidgetEventType,
        render_element_for_tui,
    )

    context.TuiMaterializer = TuiMaterializer
    context.TuiWidgetEvent = TuiWidgetEvent
    context.TuiWidgetEventType = TuiWidgetEventType
    context.render_element_for_tui = render_element_for_tui
    context.materializer = None
    context.session = None
    context.panel_handle = None
    context.status_handle = None
    context.rendered_text = ""
    context.callback_events: list[TuiWidgetEvent] = []
    context.last_event: TuiWidgetEvent | None = None


# ---------------------------------------------------------------------------
# Module exports
# ---------------------------------------------------------------------------


@then("TuiMaterializer should be importable from tui.materializer")
def step_check_tui_materializer_importable(context: Any) -> None:
    from cleveragents.tui.materializer import TuiMaterializer

    assert TuiMaterializer is not None


@then("TuiWidgetEvent should be importable from tui.materializer")
def step_check_tui_widget_event_importable(context: Any) -> None:
    from cleveragents.tui.materializer import TuiWidgetEvent

    assert TuiWidgetEvent is not None


@then("TuiWidgetEventType should be importable from tui.materializer")
def step_check_tui_widget_event_type_importable(context: Any) -> None:
    from cleveragents.tui.materializer import TuiWidgetEventType

    assert TuiWidgetEventType is not None


@then("render_element_for_tui should be importable from tui.materializer")
def step_check_render_element_for_tui_importable(context: Any) -> None:
    from cleveragents.tui.materializer import render_element_for_tui

    assert render_element_for_tui is not None


# ---------------------------------------------------------------------------
# TuiMaterializer instantiation
# ---------------------------------------------------------------------------


@when("I create a TuiMaterializer without a callback")
def step_create_materializer_no_callback(context: Any) -> None:
    from cleveragents.tui.materializer import TuiMaterializer

    context.materializer = TuiMaterializer()


@when("I create a TuiMaterializer with a callback")
def step_create_materializer_with_callback(context: Any) -> None:
    from cleveragents.tui.materializer import TuiMaterializer, TuiWidgetEvent

    context.callback_events = []

    def _callback(event: TuiWidgetEvent) -> None:
        context.callback_events.append(event)

    context.materializer = TuiMaterializer(on_event=_callback)


@then('the materializer strategy_name should be "tui"')
def step_check_strategy_name(context: Any) -> None:
    assert context.materializer.strategy_name == "tui"


@then("the materializer supports_incremental_updates should be True")
def step_check_supports_incremental(context: Any) -> None:
    assert context.materializer.supports_incremental_updates is True


@then("the materializer events list should be empty")
def step_check_events_empty(context: Any) -> None:
    assert context.materializer.events == []


# ---------------------------------------------------------------------------
# the materializer should still be running (alias for strategy checks)
# ---------------------------------------------------------------------------


@then("the materializer should still be running")
def step_materializer_still_running(context: Any) -> None:
    """The materializer is considered 'running' when it reports a valid
    strategy name and supports incremental updates."""
    assert context.materializer.strategy_name == "tui"
    assert context.materializer.supports_incremental_updates is True


# ---------------------------------------------------------------------------
# on_session_begin
# ---------------------------------------------------------------------------


@when("I call on_session_begin with a mock session")
def step_call_on_session_begin(context: Any) -> None:
    context.materializer.on_session_begin(None)  # type: ignore[arg-type]


# ---------------------------------------------------------------------------
# OutputSession integration
# ---------------------------------------------------------------------------


@when("I use the materializer with an OutputSession")
def step_use_with_output_session(context: Any) -> None:
    from cleveragents.cli.output.session import OutputSession

    context.session = OutputSession(strategy=context.materializer)


@when('I create a panel handle titled "{title}"')
def step_create_panel_handle(context: Any, title: str) -> None:
    context.panel_handle = context.session.panel(title)


@when('I create a table handle titled "{title}"')
def step_create_table_handle(context: Any, title: str) -> None:
    context.table_handle = context.session.table(title)


@when('I create a progress handle with label "{label}"')
def step_create_progress_handle(context: Any, label: str) -> None:
    context.progress_handle = context.session.progress(label, indeterminate=True)


@when("I create a separator handle")
def step_create_separator_handle(context: Any) -> None:
    context.separator_handle = context.session.separator()


@when('I create an action hint handle with command "{command}"')
def step_create_action_hint_handle(context: Any, command: str) -> None:
    context.action_hint_handle = context.session.action_hint([command])


@when("I close the session")
def step_close_session(context: Any) -> None:
    context.session.close()


@when('I create and close a status handle with message "{message}"')
def step_create_and_close_status_handle(context: Any, message: str) -> None:
    handle = context.session.status(message)
    handle.close()


# ---------------------------------------------------------------------------
# Event assertions
# ---------------------------------------------------------------------------


@then("an element_created event should be emitted")
def step_check_element_created_event(context: Any) -> None:
    events = context.materializer.events
    created_events = [e for e in events if e.event_type == "element_created"]
    assert len(created_events) > 0, f"No element_created events found. Events: {events}"
    context.last_event = created_events[-1]


@then('the event element_kind should be "{kind}"')
def step_check_event_element_kind(context: Any, kind: str) -> None:
    assert context.last_event is not None
    assert context.last_event.element_kind == kind, (
        f"Expected element_kind={kind!r}, got {context.last_event.element_kind!r}"
    )


@then('the event rendered_text should contain "{text}"')
def step_check_event_rendered_text_contains(context: Any, text: str) -> None:
    assert context.last_event is not None
    assert text in context.last_event.rendered_text, (
        f"Expected {text!r} in rendered_text={context.last_event.rendered_text!r}"
    )


@then("an element_closed event should be emitted")
def step_check_element_closed_event(context: Any) -> None:
    events = context.materializer.events
    closed_events = [e for e in events if e.event_type == "element_closed"]
    assert len(closed_events) > 0, f"No element_closed events found. Events: {events}"
    context.last_closed_event = closed_events[-1]


@then('the closed event rendered_text should contain "{text}"')
def step_check_closed_event_rendered_text(context: Any, text: str) -> None:
    assert context.last_closed_event is not None
    assert text in context.last_closed_event.rendered_text, (
        f"Expected {text!r} in rendered_text={context.last_closed_event.rendered_text!r}"
    )


@then("a session_end event should be emitted")
def step_check_session_end_event(context: Any) -> None:
    events = context.materializer.events
    end_events = [e for e in events if e.event_type == "session_end"]
    assert len(end_events) > 0, f"No session_end events found. Events: {events}"


# ---------------------------------------------------------------------------
# Callback assertions
# ---------------------------------------------------------------------------


@then("the callback should have been called")
def step_check_callback_called(context: Any) -> None:
    assert len(context.callback_events) > 0, "Callback was not called"


@then('the callback event type should be "element_created"')
def step_check_callback_event_type_created(context: Any) -> None:
    created = [e for e in context.callback_events if e.event_type == "element_created"]
    assert len(created) > 0, (
        f"No element_created callback events. Got: {[e.event_type for e in context.callback_events]}"
    )


@then('the callback should have been called with event_type "{event_type}"')
def step_check_callback_event_type(context: Any, event_type: str) -> None:
    matching = [e for e in context.callback_events if e.event_type == event_type]
    assert len(matching) > 0, (
        f"No {event_type!r} callback events. Got: {[e.event_type for e in context.callback_events]}"
    )


# ---------------------------------------------------------------------------
# rendered_output property
# ---------------------------------------------------------------------------


@then("the materializer rendered_output should be empty")
def step_check_rendered_output_empty(context: Any) -> None:
    assert context.materializer.rendered_output == "", (
        f"Expected empty rendered_output, got: {context.materializer.rendered_output!r}"
    )


@then('the materializer rendered_output should contain "{text}"')
def step_check_rendered_output_contains(context: Any, text: str) -> None:
    output = context.materializer.rendered_output
    assert text in output, f"Expected {text!r} in rendered_output={output!r}"


# ---------------------------------------------------------------------------
# render_element_for_tui
# ---------------------------------------------------------------------------


@when('I render a Panel element with title "{title}" and entry "{key}" "{value}"')
def step_render_panel_element(context: Any, title: str, key: str, value: str) -> None:
    from cleveragents.cli.output.handles._models import Panel, PanelEntry
    from cleveragents.tui.materializer import render_element_for_tui

    element = Panel(title=title, entries=[PanelEntry(key=key, value=value)])
    context.rendered_text = render_element_for_tui(element)


@when('I render a Table element with title "{title}" and column "{column}"')
def step_render_table_element(context: Any, title: str, column: str) -> None:
    from cleveragents.cli.output.handles._models import ColumnDef, Table
    from cleveragents.tui.materializer import render_element_for_tui

    element = Table(title=title, columns=[ColumnDef(name=column)])
    context.rendered_text = render_element_for_tui(element)


@when('I render a StatusMessage element with level "{level}" and message "{message}"')
def step_render_status_element(context: Any, level: str, message: str) -> None:
    from cleveragents.cli.output.handles._models import StatusMessage
    from cleveragents.tui.materializer import render_element_for_tui

    element = StatusMessage(message=message, level=level)
    context.rendered_text = render_element_for_tui(element)


@when('I render an indeterminate ProgressIndicator with label "{label}"')
def step_render_indeterminate_progress(context: Any, label: str) -> None:
    from cleveragents.cli.output.handles._models import ProgressIndicator
    from cleveragents.tui.materializer import render_element_for_tui

    element = ProgressIndicator(label=label, indeterminate=True)
    context.rendered_text = render_element_for_tui(element)


@when(
    'I render a determinate ProgressIndicator with label "{label}" current {current:d} total {total:d}'
)
def step_render_determinate_progress(
    context: Any, label: str, current: int, total: int
) -> None:
    from cleveragents.cli.output.handles._models import ProgressIndicator
    from cleveragents.tui.materializer import render_element_for_tui

    element = ProgressIndicator(label=label, current=current, total=total)
    context.rendered_text = render_element_for_tui(element)


@when('I render a Tree element with root "{root}" and child "{child}"')
def step_render_tree_element(context: Any, root: str, child: str) -> None:
    from cleveragents.cli.output.handles._models import Tree, TreeNode
    from cleveragents.tui.materializer import render_element_for_tui

    root_node = TreeNode(label=root, children=[TreeNode(label=child)])
    element = Tree(root=root_node)
    context.rendered_text = render_element_for_tui(element)


@when('I render a CodeBlock element with language "{language}" and content "{content}"')
def step_render_code_element(context: Any, language: str, content: str) -> None:
    from cleveragents.cli.output.handles._models import CodeBlock
    from cleveragents.tui.materializer import render_element_for_tui

    element = CodeBlock(content=content, language=language)
    context.rendered_text = render_element_for_tui(element)


@when('I render a DiffBlock element with file_a "{file_a}" and file_b "{file_b}"')
def step_render_diff_element(context: Any, file_a: str, file_b: str) -> None:
    from cleveragents.cli.output.handles._models import DiffBlock
    from cleveragents.tui.materializer import render_element_for_tui

    element = DiffBlock(file_a=file_a, file_b=file_b)
    context.rendered_text = render_element_for_tui(element)


@when('I render a Separator element with style "{style}"')
def step_render_separator_element(context: Any, style: str) -> None:
    from cleveragents.cli.output.handles._models import Separator
    from cleveragents.tui.materializer import render_element_for_tui

    element = Separator(style=style)
    context.rendered_text = render_element_for_tui(element)


@when('I render an ActionHint element with command "{command}"')
def step_render_action_hint_element(context: Any, command: str) -> None:
    from cleveragents.cli.output.handles._models import ActionHint
    from cleveragents.tui.materializer import render_element_for_tui

    element = ActionHint(commands=[command])
    context.rendered_text = render_element_for_tui(element)


@when('I render a TextBlock element with content "{content}"')
def step_render_text_element(context: Any, content: str) -> None:
    from cleveragents.cli.output.handles._models import TextBlock
    from cleveragents.tui.materializer import render_element_for_tui

    element = TextBlock(content=content)
    context.rendered_text = render_element_for_tui(element)


@when('I render a TextBlock element with content "{content}" and indent {indent:d}')
def step_render_text_element_with_indent(
    context: Any, content: str, indent: int
) -> None:
    from cleveragents.cli.output.handles._models import TextBlock
    from cleveragents.tui.materializer import render_element_for_tui

    element = TextBlock(content=content, indent=indent)
    context.rendered_text = render_element_for_tui(element)


@then('the render output should contain "{text}"')
def step_check_rendered_text_contains(context: Any, text: str) -> None:
    assert text in context.rendered_text, (
        f"Expected {text!r} in rendered_text={context.rendered_text!r}"
    )


@then("the render output should be empty")
def step_check_rendered_text_empty(context: Any) -> None:
    assert context.rendered_text == "", (
        f"Expected empty rendered_text, got: {context.rendered_text!r}"
    )


# ---------------------------------------------------------------------------
# A2A event routing
# ---------------------------------------------------------------------------


@when('I route a permission request for "{file_path}" with type "{request_type}"')
def step_route_permission_request(
    context: Any, file_path: str, request_type: str
) -> None:
    from cleveragents.domain.models.core.inline_permission_question import (
        InlinePermissionQuestion,
        PermissionRequestType,
    )

    question = InlinePermissionQuestion(
        file_path=file_path,
        request_type=PermissionRequestType(request_type),
    )
    context.permission_question = question
    context.materializer.route_permission_request(question)


@then("a permission_request event should be emitted")
def step_check_permission_request_event(context: Any) -> None:
    events = context.materializer.events
    perm_events = [e for e in events if e.event_type == "permission_request"]
    assert len(perm_events) > 0, f"No permission_request events found. Events: {events}"
    context.last_perm_event = perm_events[-1]


@then("the permission event extra should be the InlinePermissionQuestion")
def step_check_permission_event_extra(context: Any) -> None:
    assert context.last_perm_event.extra is context.permission_question


@then('the permission event rendered_text should contain "{text}"')
def step_check_permission_event_rendered_text(context: Any, text: str) -> None:
    assert text in context.last_perm_event.rendered_text, (
        f"Expected {text!r} in rendered_text={context.last_perm_event.rendered_text!r}"
    )


@when('I route a thought block with content "{content}"')
def step_route_thought_block(context: Any, content: str) -> None:
    from cleveragents.domain.models.thought.thought_block import ThoughtBlock

    thought = ThoughtBlock(content=content)
    context.thought_block = thought
    context.materializer.route_thought_block(thought)


@then("a thought_block event should be emitted")
def step_check_thought_block_event(context: Any) -> None:
    events = context.materializer.events
    thought_events = [e for e in events if e.event_type == "thought_block"]
    assert len(thought_events) > 0, f"No thought_block events found. Events: {events}"
    context.last_thought_event = thought_events[-1]


@then("the thought event extra should be the ThoughtBlock")
def step_check_thought_event_extra(context: Any) -> None:
    assert context.last_thought_event.extra is context.thought_block


@then('the thought event rendered_text should contain "{text}"')
def step_check_thought_event_rendered_text(context: Any, text: str) -> None:
    assert text in context.last_thought_event.rendered_text, (
        f"Expected {text!r} in rendered_text={context.last_thought_event.rendered_text!r}"
    )


# ---------------------------------------------------------------------------
# Thread safety
# ---------------------------------------------------------------------------


@when("I create multiple status handles concurrently")
def step_create_multiple_status_handles_concurrently(context: Any) -> None:
    errors: list[Exception] = []

    def _create_handle(i: int) -> None:
        try:
            handle = context.session.status(f"Message {i}")
            handle.close()
        except Exception as exc:
            errors.append(exc)

    threads = [threading.Thread(target=_create_handle, args=(i,)) for i in range(10)]
    for t in threads:
        t.start()
    for t in threads:
        t.join()

    context.thread_errors = errors


@then("all events should be recorded without data corruption")
def step_check_thread_safety(context: Any) -> None:
    assert context.thread_errors == [], f"Thread errors: {context.thread_errors}"
    events = context.materializer.events
    # We should have at least 10 element_created + 10 element_closed events
    created = [e for e in events if e.event_type == "element_created"]
    closed = [e for e in events if e.event_type == "element_closed"]
    assert len(created) >= 10, f"Expected >= 10 created events, got {len(created)}"
    assert len(closed) >= 10, f"Expected >= 10 closed events, got {len(closed)}"