/*
Copyright 2024 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import React, { ChangeEvent } from "react";
import { act, render, screen } from "@testing-library/react";
import { MatrixClient, UploadResponse } from "matrix-js-sdk/src/matrix";
import { mocked } from "jest-mock";

import UserProfileSettings from "../../../../src/components/views/settings/UserProfileSettings";
import { stubClient } from "../../../test-utils";
import { ToastContext, ToastRack } from "../../../../src/contexts/ToastContext";
import { OwnProfileStore } from "../../../../src/stores/OwnProfileStore";
import MatrixClientContext from "../../../../src/contexts/MatrixClientContext";

interface MockedAvatarSettingProps {
    removeAvatar: () => void;
    onChange: (file: File) => void;
}

let removeAvatarFn: () => void;
let changeAvatarFn: (file: File) => void;

jest.mock(
    "../../../../src/components/views/settings/AvatarSetting",
    () =>
        (({ removeAvatar, onChange }) => {
            removeAvatarFn = removeAvatar;
            changeAvatarFn = onChange;
            return <div>Mocked AvatarSetting</div>;
        }) as React.FC<MockedAvatarSettingProps>,
);

let editInPlaceOnChange: (e: ChangeEvent<HTMLInputElement>) => void;
let editInPlaceOnSave: () => void;
let editInPlaceOnCancel: () => void;

interface MockedEditInPlaceProps {
    onChange: (e: ChangeEvent<HTMLInputElement>) => void;
    onSave: () => void;
    onCancel: () => void;
    value: string;
}

jest.mock("@vector-im/compound-web", () => ({
    EditInPlace: (({ onChange, onSave, onCancel, value }) => {
        editInPlaceOnChange = onChange;
        editInPlaceOnSave = onSave;
        editInPlaceOnCancel = onCancel;
        return <div>Mocked EditInPlace: {value}</div>;
    }) as React.FC<MockedEditInPlaceProps>,
}));

const renderProfileSettings = (toastRack: Partial<ToastRack>, client: MatrixClient) => {
    return render(
        <MatrixClientContext.Provider value={client}>
            <ToastContext.Provider value={toastRack}>
                <UserProfileSettings canSetAvatar={true} canSetDisplayName={true} />
            </ToastContext.Provider>
        </MatrixClientContext.Provider>,
    );
};

describe("ProfileSettings", () => {
    let client: MatrixClient;
    let toastRack: Partial<ToastRack>;

    beforeEach(() => {
        client = stubClient();
        toastRack = {
            displayToast: jest.fn().mockReturnValue(jest.fn()),
        };
    });

    it("removes avatar", async () => {
        jest.spyOn(OwnProfileStore.instance, "avatarMxc", "get").mockReturnValue("mxc://example.org/my-avatar");
        renderProfileSettings(toastRack, client);

        expect(await screen.findByText("Mocked AvatarSetting")).toBeInTheDocument();
        expect(removeAvatarFn).toBeDefined();

        act(() => {
            removeAvatarFn();
        });

        expect(client.setAvatarUrl).toHaveBeenCalledWith("");
    });

    it("changes avatar", async () => {
        renderProfileSettings(toastRack, client);

        expect(await screen.findByText("Mocked AvatarSetting")).toBeInTheDocument();
        expect(changeAvatarFn).toBeDefined();

        const returnedMxcUri = "mxc://example.org/my-avatar";
        mocked(client).uploadContent.mockResolvedValue({ content_uri: returnedMxcUri });

        const fileSentinel = {};
        await act(async () => {
            await changeAvatarFn(fileSentinel as File);
        });

        expect(client.uploadContent).toHaveBeenCalledWith(fileSentinel);
        expect(client.setAvatarUrl).toHaveBeenCalledWith(returnedMxcUri);
    });

    it("displays toast while uploading avatar", async () => {
        renderProfileSettings(toastRack, client);

        const clearToastFn = jest.fn();
        mocked(toastRack.displayToast!).mockReturnValue(clearToastFn);

        expect(await screen.findByText("Mocked AvatarSetting")).toBeInTheDocument();
        expect(changeAvatarFn).toBeDefined();

        let resolveUploadPromise = (r: UploadResponse) => {};
        const uploadPromise = new Promise<UploadResponse>((r) => {
            resolveUploadPromise = r;
        });
        mocked(client).uploadContent.mockReturnValue(uploadPromise);

        const fileSentinel = {};
        const changeAvatarActPromise = act(async () => {
            await changeAvatarFn(fileSentinel as File);
        });

        expect(toastRack.displayToast).toHaveBeenCalled();

        act(() => {
            resolveUploadPromise({ content_uri: "bloop" });
        });
        await changeAvatarActPromise;

        expect(clearToastFn).toHaveBeenCalled();
    });

    it("changes display name", async () => {
        jest.spyOn(OwnProfileStore.instance, "displayName", "get").mockReturnValue("Alice");

        renderProfileSettings(toastRack, client);

        expect(await screen.findByText("Mocked EditInPlace: Alice")).toBeInTheDocument();
        expect(editInPlaceOnSave).toBeDefined();

        act(() => {
            editInPlaceOnChange({
                target: { value: "The Value" } as HTMLInputElement,
            } as ChangeEvent<HTMLInputElement>);
        });

        await act(async () => {
            await editInPlaceOnSave();
        });

        expect(client.setDisplayName).toHaveBeenCalledWith("The Value");
    });

    it("displays error if changing display name fails", async () => {
        jest.spyOn(OwnProfileStore.instance, "displayName", "get").mockReturnValue("Alice");
        mocked(client).setDisplayName.mockRejectedValue(new Error("Failed to set display name"));

        renderProfileSettings(toastRack, client);

        expect(editInPlaceOnSave).toBeDefined();

        act(() => {
            editInPlaceOnChange({
                target: { value: "Not Alice any more" } as HTMLInputElement,
            } as ChangeEvent<HTMLInputElement>);
        });

        await act(async () => {
            await expect(editInPlaceOnSave()).rejects.toEqual(expect.any(Error));
        });
    });

    it("resets on cancel", async () => {
        jest.spyOn(OwnProfileStore.instance, "displayName", "get").mockReturnValue("Alice");

        renderProfileSettings(toastRack, client);

        expect(await screen.findByText("Mocked EditInPlace: Alice")).toBeInTheDocument();
        expect(editInPlaceOnChange).toBeDefined();
        expect(editInPlaceOnCancel).toBeDefined();

        act(() => {
            editInPlaceOnChange({
                target: { value: "Alicia Zattic" } as HTMLInputElement,
            } as ChangeEvent<HTMLInputElement>);
        });

        expect(await screen.findByText("Mocked EditInPlace: Alicia Zattic")).toBeInTheDocument();

        act(() => {
            editInPlaceOnCancel();
        });

        expect(await screen.findByText("Mocked EditInPlace: Alice")).toBeInTheDocument();
    });
});