/*
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 { MsgType } from "matrix-js-sdk/src/matrix";

import { mkEvent } from "../../../../../test-utils";
import { RoomPermalinkCreator } from "../../../../../../src/utils/permalinks/Permalinks";
import {
    createMessageContent,
    EMOTE_PREFIX,
} from "../../../../../../src/components/views/rooms/wysiwyg_composer/utils/createMessageContent";

describe("createMessageContent", () => {
    const permalinkCreator = {
        forEvent(eventId: string): string {
            return "$$permalink$$";
        },
    } as RoomPermalinkCreator;
    const message = "<em><b>hello</b> world</em>";
    const mockEvent = mkEvent({
        type: "m.room.message",
        room: "myfakeroom",
        user: "myfakeuser",
        content: { msgtype: "m.text", body: "Replying to this" },
        event: true,
    });

    afterEach(() => {
        jest.resetAllMocks();
    });

    describe("Richtext composer input", () => {
        it("Should create html message", async () => {
            // When
            const content = await createMessageContent(message, true, { permalinkCreator });

            // Then
            expect(content).toEqual({
                body: "*__hello__ world*",
                format: "org.matrix.custom.html",
                formatted_body: message,
                msgtype: "m.text",
            });
        });

        it("Should add reply to message content", async () => {
            // When
            const content = await createMessageContent(message, true, { permalinkCreator, replyToEvent: mockEvent });

            // Then
            expect(content).toEqual({
                "body": "> <myfakeuser> Replying to this\n\n*__hello__ world*",
                "format": "org.matrix.custom.html",
                "formatted_body":
                    '<mx-reply><blockquote><a href="$$permalink$$">In reply to</a>' +
                    ' <a href="https://matrix.to/#/myfakeuser">myfakeuser</a>' +
                    "<br>Replying to this</blockquote></mx-reply><em><b>hello</b> world</em>",
                "msgtype": "m.text",
                "m.relates_to": {
                    "m.in_reply_to": {
                        event_id: mockEvent.getId(),
                    },
                },
            });
        });

        it("Should add relation to message", async () => {
            // When
            const relation = {
                rel_type: "m.thread",
                event_id: "myFakeThreadId",
            };
            const content = await createMessageContent(message, true, { permalinkCreator, relation });

            // Then
            expect(content).toEqual({
                "body": "*__hello__ world*",
                "format": "org.matrix.custom.html",
                "formatted_body": message,
                "msgtype": "m.text",
                "m.relates_to": {
                    event_id: "myFakeThreadId",
                    rel_type: "m.thread",
                },
            });
        });

        it("Should add fields related to edition", async () => {
            // When
            const editedEvent = mkEvent({
                type: "m.room.message",
                room: "myfakeroom",
                user: "myfakeuser2",
                content: {
                    "msgtype": "m.text",
                    "body": "First message",
                    "formatted_body": "<b>First Message</b>",
                    "m.relates_to": {
                        "m.in_reply_to": {
                            event_id: "eventId",
                        },
                    },
                },
                event: true,
            });
            const content = await createMessageContent(message, true, { permalinkCreator, editedEvent });

            // Then
            expect(content).toEqual({
                "body": " * *__hello__ world*",
                "format": "org.matrix.custom.html",
                "formatted_body": ` * ${message}`,
                "msgtype": "m.text",
                "m.new_content": {
                    body: "*__hello__ world*",
                    format: "org.matrix.custom.html",
                    formatted_body: message,
                    msgtype: "m.text",
                },
                "m.relates_to": {
                    event_id: editedEvent.getId(),
                    rel_type: "m.replace",
                },
            });
        });

        it("Should strip the /me prefix from a message", async () => {
            const textBody = "some body text";
            const content = await createMessageContent(EMOTE_PREFIX + textBody, true, { permalinkCreator });

            expect(content).toMatchObject({ body: textBody, formatted_body: textBody });
        });

        it("Should strip single / from message prefixed with //", async () => {
            const content = await createMessageContent("//twoSlashes", true, { permalinkCreator });

            expect(content).toMatchObject({ body: "/twoSlashes", formatted_body: "/twoSlashes" });
        });

        it("Should set the content type to MsgType.Emote when /me prefix is used", async () => {
            const textBody = "some body text";
            const content = await createMessageContent(EMOTE_PREFIX + textBody, true, { permalinkCreator });

            expect(content).toMatchObject({ msgtype: MsgType.Emote });
        });
    });

    describe("Plaintext composer input", () => {
        it("Should replace at-room mentions with `@room` in body", async () => {
            const messageComposerState = `<a href="#" contenteditable="false" data-mention-type="at-room" style="some styling">@room</a> `;

            const content = await createMessageContent(messageComposerState, false, { permalinkCreator });
            expect(content).toMatchObject({ body: "@room " });
        });

        it("Should replace user mentions with user name in body", async () => {
            const messageComposerState = `<a href="https://matrix.to/#/@test_user:element.io" contenteditable="false" data-mention-type="user" style="some styling">a test user</a> `;

            const content = await createMessageContent(messageComposerState, false, { permalinkCreator });

            expect(content).toMatchObject({ body: "a test user " });
        });

        it("Should replace room mentions with room mxid in body", async () => {
            const messageComposerState = `<a href="https://matrix.to/#/#test_room:element.io" contenteditable="false" data-mention-type="room" style="some styling">a test room</a> `;

            const content = await createMessageContent(messageComposerState, false, { permalinkCreator });

            expect(content).toMatchObject({
                body: "#test_room:element.io ",
            });
        });
    });
});
