"""Regression coverage for live Activity timeline UX.

The live Activity disclosure should surface observable run telemetry instead of a
blank Thinking placeholder while preserving the quiet tool/thinking metadata
family.
"""

import pathlib


REPO = pathlib.Path(__file__).parent.parent
UI_JS = (REPO / "static" / "ui.js").read_text(encoding="utf-8")
MESSAGES_JS = (REPO / "static" / "messages.js").read_text(encoding="utf-8")
STYLE_CSS = (REPO / "static" / "style.css").read_text(encoding="utf-8")


def test_live_activity_group_has_observable_baseline_events():
    assert "function _ensureLiveActivityBaseline(group)" in UI_JS
    assert "Run started" in UI_JS
    assert "Observable activity will appear here as the agent works." in UI_JS
    assert "Model: ${modelLabel}" in UI_JS
    assert "_ensureLiveActivityBaseline(group);" in UI_JS


def test_empty_thinking_placeholder_becomes_status_row_not_raw_thinking_card():
    assert "data-activity-event-id=\"thinking-placeholder\"" in UI_JS
    assert "Starting agent" in UI_JS
    assert "Creating the stream and sending your message…" in UI_JS
    assert "Waiting for first model token" in UI_JS
    assert "Stream connected; no model output has arrived yet." in UI_JS
    assert "Waiting on model" in UI_JS
    assert "Reviewing the prompt and context, then choosing the next action or composing the response." in UI_JS
    assert "Reviewing prompt and context" in UI_JS
    assert "Waiting on tool result" in UI_JS
    assert "Last step: ${action} (${toolName}); now choosing the next action or composing a response." in UI_JS
    assert "_thinkingActivityNode(thinkingText, false)" in UI_JS


def test_stream_start_refreshes_waiting_status_after_stream_id_arrives():
    active_idx = MESSAGES_JS.find("S.activeStreamId = streamId;")
    assert active_idx != -1
    refresh_idx = MESSAGES_JS.find("appendThinking('',{pending:true})", active_idx)
    attach_idx = MESSAGES_JS.find("attachLiveStream(activeSid, streamId, uploadedNames);", active_idx)
    assert refresh_idx != -1
    assert attach_idx != -1
    assert refresh_idx < attach_idx


def test_activity_feed_default_expand_setting_is_wired():
    index_html = (REPO / "static" / "index.html").read_text(encoding="utf-8")
    panels_js = (REPO / "static" / "panels.js").read_text(encoding="utf-8")
    boot_js = (REPO / "static" / "boot.js").read_text(encoding="utf-8")
    config_py = (REPO / "api" / "config.py").read_text(encoding="utf-8")

    assert 'id="settingsActivityFeedExpandedDefault"' in index_html
    assert "settings_label_activity_feed_expanded_default" in index_html
    assert '"activity_feed_expanded_default": False' in config_py
    assert "activity_feed_expanded_default" in panels_js
    assert "window._activityFeedExpandedDefault=!!s.activity_feed_expanded_default;" in boot_js
    assert "if(window._activityFeedExpandedDefault===true) collapsed=false;" in UI_JS
    finalize_fn = UI_JS.split("function finalizeThinkingCard")[1].split("\nfunction ")[0]
    assert "_activityFeedExpandedDefault" in finalize_fn
    assert "_liveActivityUserExpanded !== false" in finalize_fn


def test_tool_events_update_activity_timeline_and_summary():
    assert "Tool finished: ${toolName}" in UI_JS
    assert "Running tool: ${toolName}" in UI_JS
    assert "No recent activity for ${_formatActiveElapsedTimer(idleAge)}" in UI_JS
    assert "Activity · Running" in UI_JS
    assert "Working for ${label}" in UI_JS


def test_activity_status_rows_have_quiet_metadata_styling():
    assert ".agent-activity-status{" in STYLE_CSS
    assert "grid-template-columns:18px minmax(0,1fr) auto" in STYLE_CSS
    assert ".agent-activity-status-detail" in STYLE_CSS
    assert ".agent-activity-status-time" in STYLE_CSS
    assert ".agent-activity-status-error .agent-activity-status-label{color:var(--error);}" in STYLE_CSS