from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]

def test_extension_retries_error_page_script_injection_before_failing():
    core = (ROOT / "extension" / "src" / "core.ts").read_text()

    assert "isBrowserErrorUrl" in core
    assert "isErrorPageScriptError" in core
    assert "chrome-error://" in core
    assert "edge-error://" in core
    assert "brave-error://" in core
    assert "about:neterror" in core
    assert "about:certerror" in core
    assert "isTransientScriptError(e)" in core

def test_read_only_dom_commands_have_error_page_fallbacks():
    dom = (ROOT / "extension" / "src" / "commands" / "dom.ts").read_text()

    assert "fallbackForErrorPageDomOp" in dom
    assert 'case "domExists":' in dom
    assert "return false;" in dom
    assert 'case "domQuery":' in dom
    assert 'case "extractText":' in dom
    assert "isBrowserErrorUrl(tabUrl)" in dom
    assert "isErrorPageScriptError(e)" in dom

def test_navigation_and_tabs_report_browser_error_pages():
    tabs = (ROOT / "extension" / "src" / "commands" / "tabs.ts").read_text()
    navigation = (ROOT / "extension" / "src" / "commands" / "navigation.ts").read_text()

    assert "lastUrl" in tabs
    assert "lastStatus" in tabs
    assert "showing an error page" in tabs
    assert "last URL:" in tabs
    assert "isBrowserErrorUrl" in navigation
    assert "showing an error page while waiting for load" in navigation

def test_large_extension_operations_yield_between_batches():
    core = (ROOT / "extension" / "src" / "core.ts").read_text()
    tabs = (ROOT / "extension" / "src" / "commands" / "tabs.ts").read_text()
    groups = (ROOT / "extension" / "src" / "commands" / "groups.ts").read_text()
    session = (ROOT / "extension" / "src" / "commands" / "session.ts").read_text()

    assert "yieldForLargeOperation" in core
    assert "getLargeOperationThrottle" in core
    assert "hasAudibleTabs" in core
    assert "runLargeOperation" in core
    assert "largeOperationQueue" in core
    assert "updateJobProgress" in core
    assert "throwIfJobCancelled" in core
    assert "getPerformanceProfile" in core
    assert "setPerformanceProfile" in core
    assert "GENTLE_OPERATION_BATCH_SIZE" in core
    assert "GENTLE_OPERATION_PAUSE_MS" in core
    assert "itemCount >= 300" in core
    assert "itemCount >= 100" in core
    assert "chrome.tabs.query({ audible: true })" in core
    assert "yieldForLargeOperation" in tabs
    assert "toClose.slice" in tabs
    assert "ids.slice" in tabs
    assert "w.tabs.every" in tabs
    assert "getLargeOperationThrottle" in tabs
    assert "runLargeOperation(\"tabs.sort\"" in tabs
    assert "yieldForLargeOperation" in groups
    assert "tabIds.slice" in groups
    assert "getLargeOperationThrottle" in groups
    assert "runLargeOperation(\"group.close\"" in groups
    assert "yieldForLargeOperation(createdTabs.length" in session
    assert "getLargeOperationThrottle" in session
    assert "runLargeOperation(\"session.load\"" in session
    assert "chrome.tabs.discard" in session
    assert "lazyPlaceholderUrl" in session
    assert "activateLazyTab" in session
    assert "lazySessionTabs" in session
    assert "throwIfJobCancelled" in session
    assert "updateJobProgress" in session

    index = (ROOT / "extension" / "src" / "index.ts").read_text()
    assert "BACKGROUND_COMMANDS" in index
    assert "startBackgroundJob" in index
    assert "persistJobs" in index
    assert "recentJobs" in index
    assert "jobs.status" in index
    assert "jobs.cancel" in index
    assert "perf.status" in index
    assert "perf.set_profile" in index
    assert "__background" in index


def test_session_autosave_is_debounced_and_non_overlapping():
    session = (ROOT / "extension" / "src" / "commands" / "session.ts").read_text()

    assert "autoSaveTimer" in session
    assert "autoSaveInFlight" in session
    assert "autoSavePending" in session
    assert "scheduleAutoSave" in session
    assert "autoSaveUpdatedHandler" in session
    assert "saveAutoSessionIfChanged" in session
    assert "sessionSignature" in session
    assert "autoSaveSignature" in session
    assert "chrome.tabs.onUpdated.addListener(autoSaveUpdatedHandler)" in session
    assert "chrome.tabs.onCreated.addListener(autoSaveHandler)" in session
    assert "chrome.tabs.onMoved.addListener(autoSaveHandler)" in session
    assert "if (!(\"url\" in changeInfo)) return;" in session
    assert "setTimeout(runAutoSave, delayMs)" in session
    assert "clearTimeout(autoSaveTimer)" in session


def test_cli_and_sdk_expose_gentle_restore_controls():
    session_cli = (ROOT / "browser_cli" / "commands" / "session.py").read_text()
    tabs_cli = (ROOT / "browser_cli" / "commands" / "tabs.py").read_text()
    groups_cli = (ROOT / "browser_cli" / "commands" / "groups.py").read_text()
    sdk = (ROOT / "browser_cli" / "__init__.py").read_text()

    assert "--gentle-mode" in session_cli
    assert "--discard-background-tabs" in session_cli
    assert "--background" in session_cli
    assert "--lazy" in session_cli
    assert "--eager-tabs" in session_cli
    assert "job-status" in session_cli
    assert "job-cancel" in session_cli
    assert "discardBackgroundTabs" in session_cli
    assert "--gentle-mode" in tabs_cli
    assert "gentleMode" in tabs_cli
    assert "--gentle-mode" in groups_cli
    assert "discard_background_tabs" in sdk
    assert "discardBackgroundTabs" in sdk
    assert "session_load_background" in sdk
    assert "job_status" in sdk
    assert "job_cancel" in sdk
    assert "perf_status" in sdk
    assert "set_performance_profile" in sdk

    perf_cli = (ROOT / "browser_cli" / "commands" / "perf.py").read_text()
    root_cli = (ROOT / "browser_cli" / "cli.py").read_text()
    assert "perf_group" in perf_cli
    assert "perf.status" in perf_cli
    assert "perf.set_profile" in perf_cli
    assert "main.add_command(perf_group)" in root_cli