from __future__ import annotations

import sys
import unittest
from pathlib import Path

from fastapi.staticfiles import StaticFiles
from starlette.routing import Mount

sys.path.insert(0, str(Path(__file__).resolve().parents[3]))

from backend.app.main import app


class UiSmokeGoldenTest(unittest.TestCase):
    def _ui_mount(self) -> Mount:
        for route in app.routes:
            if isinstance(route, Mount) and route.path == "/ui":
                return route
        self.fail("Expected /ui mount to be registered")

    def test_ui_mount_and_index_contains_expected_panels(self) -> None:
        mount = self._ui_mount()
        self.assertIsInstance(mount.app, StaticFiles)
        index_path = Path(mount.app.directory) / "index.html"
        self.assertTrue(index_path.exists())

        body = index_path.read_text(encoding="utf-8")
        self.assertIn('id="workspace"', body)
        self.assertIn('id="footer-bar"', body)
        self.assertIn('id="title-zone-actions"', body)
        self.assertIn('id="status"', body)
        self.assertIn('id="theme-toggle"', body)
        self.assertIn('id="theme-toggle-icon"', body)
        self.assertIn('id="left-pane"', body)
        self.assertIn('id="right-pane"', body)
        self.assertIn('id="left-items"', body)
        self.assertIn('id="right-items"', body)
        self.assertIn('id="function-bar"', body)
        self.assertIn('id="view-btn"', body)
        self.assertIn('id="edit-btn"', body)
        self.assertIn("F3", body)
        self.assertIn("F4", body)
        self.assertIn("F5", body)
        self.assertIn("F6", body)
        self.assertIn("F7", body)
        self.assertIn("F8", body)
        self.assertIn('id="viewer-modal"', body)
        self.assertIn('id="viewer-content"', body)
        self.assertIn('id="editor-modal"', body)
        self.assertIn('id="editor-content"', body)
        self.assertIn('id="editor-save-btn"', body)
        self.assertIn('id="editor-cancel-btn"', body)
        self.assertIn('id="rename-move-popup"', body)
        self.assertIn('id="rename-move-input"', body)
        self.assertIn('id="batch-move-popup"', body)
        self.assertIn('id="batch-move-apply-btn"', body)
        self.assertIn('id="mkdir-btn"', body)
        self.assertIn('id="copy-btn"', body)
        self.assertIn('id="move-btn"', body)
        self.assertIn('id="rename-btn"', body)
        self.assertIn('id="delete-btn"', body)
        self.assertIn('id="left-breadcrumbs"', body)
        self.assertIn('id="right-breadcrumbs"', body)
        self.assertIn('id="wildcard-popup"', body)
        self.assertIn('id="wildcard-pattern-input"', body)
        self.assertNotIn('id="bookmarks-panel"', body)
        self.assertNotIn('id="tasks-panel"', body)

        ordered_ids = [
            'id="view-btn"',
            'id="edit-btn"',
            'id="copy-btn"',
            'id="move-btn"',
            'id="rename-btn"',
            'id="mkdir-btn"',
            'id="delete-btn"',
        ]
        positions = [body.index(marker) for marker in ordered_ids]
        self.assertEqual(positions, sorted(positions))

    def test_ui_static_assets_are_present_and_mapped(self) -> None:
        mount = self._ui_mount()
        static_root = Path(mount.app.directory)
        self.assertTrue((static_root / "app.js").exists())
        self.assertTrue((static_root / "style.css").exists())
        app_js = (static_root / "app.js").read_text(encoding="utf-8")
        self.assertIn('currentPath: "/Volumes"', app_js)
        self.assertIn('const THEME_STORAGE_KEY = "webmanager-theme"', app_js)
        self.assertIn("document.documentElement.dataset.theme", app_js)
        self.assertIn('document.getElementById("theme-toggle").onclick = toggleTheme;', app_js)
        self.assertIn('Cross-root directory move is not supported in v1', app_js)
        self.assertIn('Batch directory move is not supported in v1', app_js)
        self.assertIn('Batch move requires all selected items to be in the same root', app_js)
        self.assertIn('destination_base', app_js)
        self.assertIn('sources: selectedItems.map((item) => item.path)', app_js)
        self.assertIn("function rootKeyFromPath(path)", app_js)
        self.assertIn("function isNestedPath(sourcePath, destinationPath)", app_js)
        style_css = (static_root / "style.css").read_text(encoding="utf-8")
        self.assertIn(':root[data-theme="dark"]', style_css)
        self.assertIn(':root[data-theme="light"]', style_css)
        self.assertIn('#theme-toggle', style_css)

        app_js_url = app.url_path_for("ui", path="/app.js")
        style_css_url = app.url_path_for("ui", path="/style.css")
        self.assertEqual(app_js_url, "/ui/app.js")
        self.assertEqual(style_css_url, "/ui/style.css")


if __name__ == "__main__":
    unittest.main()