/*
Copyright 2022 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 * as React from "react";
import { mount, ReactWrapper } from "enzyme";
import { RoomMember } from "matrix-js-sdk/src/models/room-member";
import { MatrixEvent } from "matrix-js-sdk/src/models/event";

import '../../../skinned-sdk'; // Must be first for skinning to work
import { createTestClient, mkEvent, mkStubRoom, stubClient } from "../../../test-utils";
import MessageComposer from "../../../../src/components/views/rooms/MessageComposer";
import MatrixClientContext from "../../../../src/contexts/MatrixClientContext";
import { MatrixClientPeg } from "../../../../src/MatrixClientPeg";
import RoomContext from "../../../../src/contexts/RoomContext";

describe("MessageComposer", () => {
    stubClient();
    const cli = createTestClient();
    const room = mkStubRoom("!roomId:server", "Room 1", cli);

    it("Renders a SendMessageComposer and MessageComposerButtons by default", () => {
        const wrapper = wrapAndRender((
            <MessageComposer room={room} resizeNotifier={jest.fn()} permalinkCreator={jest.fn()} />
        ));

        expect(wrapper.find("SendMessageComposer")).toHaveLength(1);
        expect(wrapper.find("MessageComposerButtons")).toHaveLength(1);
    });

    it("Does not render a SendMessageComposer or MessageComposerButtons when user has no permission", () => {
        const wrapper = wrapAndRender((
            <MessageComposer room={room} resizeNotifier={jest.fn()} permalinkCreator={jest.fn()} />
        ), false);

        expect(wrapper.find("SendMessageComposer")).toHaveLength(0);
        expect(wrapper.find("MessageComposerButtons")).toHaveLength(0);
        expect(wrapper.find(".mx_MessageComposer_noperm_error")).toHaveLength(1);
    });

    it("Does not render a SendMessageComposer or MessageComposerButtons when room is tombstoned", () => {
        const wrapper = wrapAndRender((
            <MessageComposer room={room} resizeNotifier={jest.fn()} permalinkCreator={jest.fn()} />
        ), true, mkEvent({
            event: true,
            type: "m.room.tombstone",
            room: room.roomId,
            user: "@user1:server",
            skey: "",
            content: {},
            ts: Date.now(),
        }));

        expect(wrapper.find("SendMessageComposer")).toHaveLength(0);
        expect(wrapper.find("MessageComposerButtons")).toHaveLength(0);
        expect(wrapper.find(".mx_MessageComposer_roomReplaced_header")).toHaveLength(1);
    });
});

function wrapAndRender(component: React.ReactElement, canSendMessages = true, tombstone?: MatrixEvent): ReactWrapper {
    const mockClient = MatrixClientPeg.get();
    const roomId = "myroomid";
    const room: any = {
        currentState: undefined,
        roomId,
        client: mockClient,
        getMember: function(userId: string): RoomMember {
            return new RoomMember(roomId, userId);
        },
    };
    return mount(
        <MatrixClientContext.Provider value={mockClient}>
            <RoomContext.Provider value={{ room, canSendMessages, tombstone }}>
                { component }
            </RoomContext.Provider>
        </MatrixClientContext.Provider>,
    );
}