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Reworked the lesson editor #685

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b524962
Removed circular flow introduced by useEffect
Nov 28, 2025
d01da1d
WIP: leaner lesson builder and embed lesson supports iframes in addit…
Nov 28, 2025
023a5d9
build fixes
Nov 28, 2025
9232967
Tested manually; Added unit tests; Lesson viewer not supports iframe …
Nov 29, 2025
fd27c37
Lint fixes
Nov 29, 2025
e883916
added any to zod schemas
Nov 29, 2025
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394 changes: 394 additions & 0 deletions .../product/[id]/content/section/[section]/lesson/__tests__/lesson-content-renderer.test.tsx
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import React from "react";
import { render, screen, fireEvent, waitFor } from "@testing-library/react";
import { LessonContentRenderer } from "../lesson-content-renderer";
import { Constants } from "@courselit/common-models";
import { AddressContext, ProfileContext } from "@components/contexts";
import "@testing-library/jest-dom";

// Mock dependencies
jest.mock("@courselit/text-editor", () => {
const React = jest.requireActual("react");
return {
Editor: ({ onChange, initialContent }: any) =>
React.createElement(
"div",
{ "data-testid": "text-editor" },
React.createElement("textarea", {
"data-testid": "text-editor-input",
onChange: (e: any) =>
onChange({ type: "doc", content: e.target.value }),
value: initialContent?.content || "",
}),
),
emptyDoc: { type: "doc", content: [] },
};
});

jest.mock("@courselit/icons", () => {
const React = jest.requireActual("react");
return {
ExpandLess: () =>
React.createElement(
"span",
{ "data-testid": "icon-expand-less" },
"ExpandLess",
),
ExpandMore: () =>
React.createElement(
"span",
{ "data-testid": "icon-expand-more" },
"ExpandMore",
),
};
});

jest.mock("@ui-config/strings", () => ({
LESSON_QUIZ_ADD_QUESTION: "Add Question",
LESSON_QUIZ_QUESTION_PLACEHOLDER: "Question Placeholder",
LESSON_QUIZ_ADD_OPTION_BTN: "Add Option",
LESSON_QUIZ_CONTENT_HEADER: "Question",
LESSON_QUIZ_OPTION_PLACEHOLDER: "Option Placeholder",
QUESTION_BUILDER_COLLAPSE_TOOLTIP: "Collapse",
QUESTION_BUILDER_CORRECT_ANS_TOOLTIP: "Correct Answer",
QUESTION_BUILDER_DELETE_TOOLTIP: "Delete",
QUESTION_BUILDER_EXPAND_TOOLTIP: "Expand",
}));

jest.mock("@components/ui/button", () => {
const React = jest.requireActual("react");
return {
Button: ({ onClick, children }: any) =>
React.createElement(
"button",
{ onClick, "data-testid": "button" },
children,
),
};
});

jest.mock("@components/ui/label", () => {
const React = jest.requireActual("react");
return {
Label: ({ children }: any) =>
React.createElement("label", {}, children),
};
});

jest.mock("@components/ui/switch", () => {
const React = jest.requireActual("react");
return {
Switch: ({ checked, onCheckedChange }: any) =>
React.createElement("input", {
type: "checkbox",
checked,
onChange: (e: any) => onCheckedChange(e.target.checked),
"data-testid": "switch",
}),
};
});

jest.mock("@components/ui/input", () => {
const React = jest.requireActual("react");
return {
Input: (props: any) =>
React.createElement("input", { ...props, "data-testid": "input" }),
};
});

jest.mock("lucide-react", () => {
const React = jest.requireActual("react");
return {
Trash: () =>
React.createElement(
"span",
{ "data-testid": "icon-trash" },
"Trash",
),
};
});

jest.mock("@courselit/components-library", () => {
const React = jest.requireActual("react");
return {
MediaSelector: ({ onSelection, onRemove }: any) =>
React.createElement(
"div",
{ "data-testid": "media-selector" },
React.createElement(
"button",
{
onClick: () =>
onSelection({
originalFileName: "test.mp4",
mediaId: "123",
}),
},
"Select Media",
),
React.createElement(
"button",
{ onClick: onRemove },
"Remove Media",
),
),
useToast: () => ({
toast: jest.fn(),
}),
Section: ({ children }: any) =>
React.createElement("div", { "data-testid": "section" }, children),
Checkbox: ({ checked, onChange }: any) =>
React.createElement("input", {
type: "checkbox",
checked,
onChange: (e: any) => onChange(e.target.checked),
"data-testid": "checkbox",
}),
IconButton: ({ onClick, children }: any) =>
React.createElement(
"button",
{ onClick, "data-testid": "icon-button" },
children,
),
Tooltip: ({ children, title }: any) =>
React.createElement(
"div",
{ title, "data-testid": "tooltip" },
children,
),
};
});

jest.mock("@components/public/lesson-viewer/embed-viewer", () => {
const React = jest.requireActual("react");
return {
__esModule: true,
default: ({ content }: any) =>
React.createElement(
"div",
{ "data-testid": "embed-viewer" },
content.value,
),
};
});

jest.mock("@courselit/utils", () => ({
FetchBuilder: jest.fn().mockImplementation(() => ({
setUrl: jest.fn().mockReturnThis(),
setPayload: jest.fn().mockReturnThis(),
setIsGraphQLEndpoint: jest.fn().mockReturnThis(),
build: jest.fn().mockReturnThis(),
exec: jest.fn().mockResolvedValue({}),
})),
}));

describe("LessonContentRenderer", () => {
const mockOnContentChange = jest.fn();
const mockOnLessonChange = jest.fn();
const defaultProps = {
lesson: {},
errors: {},
onContentChange: mockOnContentChange,
onLessonChange: mockOnLessonChange,
};

const wrapper = ({ children }: { children: React.ReactNode }) => (
<AddressContext.Provider
value={{ backend: "http://localhost:3000", frontend: "" }}
>
<ProfileContext.Provider
value={
{ profile: { userId: "1", email: "[email protected]" } } as any
}
>
{children}
</ProfileContext.Provider>
</AddressContext.Provider>
);

beforeEach(() => {
jest.clearAllMocks();
});

it("renders text editor for TEXT lesson type", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{ type: Constants.LessonType.TEXT }}
/>,
{ wrapper },
);

expect(screen.getByTestId("text-editor")).toBeInTheDocument();
});

it("renders embed viewer for EMBED lesson type", async () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{
type: Constants.LessonType.EMBED,
content: {
value: "https://youtube.com/watch?v=123",
} as any,
}}
/>,
{ wrapper },
);

expect(
screen.getByPlaceholderText(/e.g. YouTube video URL/i),
).toBeInTheDocument();
await waitFor(() => {
expect(screen.getByTestId("embed-viewer")).toBeInTheDocument();
});
});

it("renders quiz builder for QUIZ lesson type", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{ type: Constants.LessonType.QUIZ }}
/>,
{ wrapper },
);

expect(screen.getByText("Add Question")).toBeInTheDocument();
});

it("renders media selector for VIDEO lesson type", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{
type: Constants.LessonType.VIDEO,
lessonId: "1",
title: "Test Lesson",
}}
/>,
{ wrapper },
);

expect(screen.getByTestId("media-selector")).toBeInTheDocument();
});

it("renders media selector for AUDIO lesson type", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{
type: Constants.LessonType.AUDIO,
lessonId: "1",
title: "Test Lesson",
}}
/>,
{ wrapper },
);

expect(screen.getByTestId("media-selector")).toBeInTheDocument();
});

it("renders media selector for PDF lesson type", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{
type: Constants.LessonType.PDF,
lessonId: "1",
title: "Test Lesson",
}}
/>,
{ wrapper },
);

expect(screen.getByTestId("media-selector")).toBeInTheDocument();
});

it("renders media selector for FILE lesson type", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{
type: Constants.LessonType.FILE,
lessonId: "1",
title: "Test Lesson",
}}
/>,
{ wrapper },
);

expect(screen.getByTestId("media-selector")).toBeInTheDocument();
});

it("handles content change in text editor", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{ type: Constants.LessonType.TEXT }}
/>,
{ wrapper },
);

const input = screen.getByTestId("text-editor-input");
fireEvent.change(input, { target: { value: "New content" } });

expect(mockOnContentChange).toHaveBeenCalledWith({
type: "doc",
content: "New content",
});
});

it("handles content change in embed url", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{ type: Constants.LessonType.EMBED }}
/>,
{ wrapper },
);

const input = screen.getByPlaceholderText(/e.g. YouTube video URL/i);
fireEvent.change(input, { target: { value: "https://new-url.com" } });

// The useEffect in the component triggers the change
expect(mockOnContentChange).toHaveBeenCalledWith({
value: "https://new-url.com",
});
});

it("renders quiz builder for QUIZ lesson type", () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{ type: Constants.LessonType.QUIZ }}
/>,
{ wrapper },
);

// Verify QuizBuilder is rendered (it contains "Add Question" button)
expect(screen.getByText("Add Question")).toBeInTheDocument();
});

it("handles media selection", async () => {
render(
<LessonContentRenderer
{...defaultProps}
lesson={{
type: Constants.LessonType.VIDEO,
lessonId: "1",
title: "Test Lesson",
}}
/>,
{ wrapper },
);

fireEvent.click(screen.getByText("Select Media"));

expect(mockOnLessonChange).toHaveBeenCalledWith(
expect.objectContaining({
media: expect.objectContaining({
originalFileName: "test.mp4",
}),
}),
);
});
});
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