"""Frontend-Asset Tests: verify JS modules and CSS are syntactically valid
and export / register the expected symbols.

These tests perform static text-level checks on the JS / CSS files — no
runtime execution, no nodejs dependency. They are sufficient to catch:
  - Missing exports (e.g. `export { api, ApiError }` removed from api.js)
  - Missing global Alpine.data() registrations for the components
  - CSS variables removed from the custom-overrides file
"""

from __future__ import annotations

from pathlib import Path

import pytest

WEBUI = Path(__file__).resolve().parent.parent / "app" / "webui"


def _read(rel: str) -> str:
    p = WEBUI / rel
    assert p.exists(), f"Missing asset: {p}"
    return p.read_text(encoding="utf-8")


# ---------------------------------------------------------------------------
# api.js
# ---------------------------------------------------------------------------


def test_api_js_exports_api_and_ApiError():
    content = _read("js/api.js")
    assert "export class ApiError" in content
    assert "export const api" in content or "export default api" in content


def test_api_js_uses_localStorage_for_jwt():
    """R-1 / architecture: JWT must live in localStorage."""
    content = _read("js/api.js")
    assert "localStorage" in content
    assert "jwt" in content


def test_api_js_handles_401_redirect():
    """401 must clear the token and redirect to /index.html."""
    content = _read("js/api.js")
    assert "401" in content
    assert "/index.html" in content


def test_api_js_handles_204_no_content():
    content = _read("js/api.js")
    assert "204" in content


# ---------------------------------------------------------------------------
# store.js
# ---------------------------------------------------------------------------


def test_store_js_defines_auth_and_notifications():
    content = _read("js/store.js")
    assert "Alpine.store('auth'" in content
    assert "Alpine.store('notifications'" in content


def test_store_js_auth_has_login_and_logout():
    content = _read("js/store.js")
    assert "login" in content
    assert "logout" in content
    assert "fetchUser" in content


def test_store_js_notifications_has_push_and_dismiss():
    content = _read("js/store.js")
    assert "push" in content
    assert "dismiss" in content
    assert "success" in content
    assert "error" in content


# ---------------------------------------------------------------------------
# app.css
# ---------------------------------------------------------------------------


def test_app_css_contains_tailwind_overrides():
    content = _read("css/app.css")
    # The file defines custom CSS variables (--crm-primary, etc.)
    assert "--crm-primary" in content
    assert "--crm-success" in content
    assert "--crm-danger" in content


def test_app_css_has_loading_spinner():
    content = _read("css/app.css")
    assert "crm-spinner" in content
    assert "@keyframes crm-spin" in content


def test_app_css_has_toast_styles():
    content = _read("css/app.css")
    assert "crm-toast" in content
    assert "toast-success" in content
    assert "toast-error" in content


# ---------------------------------------------------------------------------
# Alpine components
# ---------------------------------------------------------------------------

COMPONENTS = [
    ("account-list.js", "accountList"),
    ("deal-kanban.js", "dealKanban"),
    ("activity-list.js", "activityList"),
    ("dashboard-kpis.js", "dashboardKpis"),
]


@pytest.mark.parametrize("filename,factory", COMPONENTS)
def test_alpine_component_defined(filename, factory):
    """Each component file must define a named factory and register it
    globally with Alpine.data(name, factory)."""
    content = _read(f"components/{filename}")
    # factory function definition
    assert f"export function {factory}" in content, (
        f"{filename} missing `export function {factory}()`"
    )
    # Alpine.data() registration
    assert f"Alpine.data('{factory}'" in content, (
        f"{filename} missing `Alpine.data('{factory}', …)` registration"
    )


def test_deal_kanban_handles_drag_and_drop():
    content = _read("components/deal-kanban.js")
    assert "draggable" in content or "dataTransfer" in content
    assert "onDrop" in content
    assert "/deals/" in content and "/stage" in content


def test_activity_list_supports_overdue_filter():
    content = _read("components/activity-list.js")
    assert "overdue" in content
    assert "/activities/" in content
    assert "/complete" in content


def test_dashboard_kpis_loads_both_kpis_and_feed():
    content = _read("components/dashboard-kpis.js")
    assert "/dashboard/kpis" in content
    assert "/dashboard/feed" in content


def test_account_list_uses_pagination():
    content = _read("components/account-list.js")
    assert "skip" in content
    assert "limit" in content
    assert "q" in content
    assert "/accounts/" in content


# ---------------------------------------------------------------------------
# notifications.js (toast component)
# ---------------------------------------------------------------------------


def test_notifications_js_registers_toast_container():
    content = _read("js/components/notifications.js")
    assert "toastContainer" in content
    assert "Alpine.data" in content


# ---------------------------------------------------------------------------
# auth.js
# ---------------------------------------------------------------------------


def test_auth_js_exports_login_logout_register():
    content = _read("js/auth.js")
    assert "export async function login" in content
    assert "export async function logout" in content
    assert "export async function register" in content
    assert "export async function refreshToken" in content