/*
Copyright 2023 Suguru Hirahara

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.
*/

/// <reference types="cypress" />

import { HomeserverInstance } from "../../plugins/utils/homeserver";
import Chainable = Cypress.Chainable;

const ROOM_NAME = "Test room";
const NAME = "Alice";

const viewRoomSummaryByName = (name: string): Chainable<JQuery<HTMLElement>> => {
    cy.viewRoomByName(name);
    cy.findByRole("button", { name: "Room info" }).click();
    return checkRoomSummaryCard(name);
};

const checkRoomSummaryCard = (name: string): Chainable<JQuery<HTMLElement>> => {
    cy.get(".mx_RoomSummaryCard").should("have.length", 1);
    return cy.get(".mx_RoomSummaryCard").should("contain", name);
};

const uploadFile = (file: string) => {
    // Upload a file from the message composer
    cy.get(".mx_MessageComposer_actions input[type='file']").selectFile(file, { force: true });

    cy.get(".mx_Dialog").within(() => {
        cy.findByRole("button", { name: "Upload" }).click();
    });

    // Wait until the file is sent
    cy.get(".mx_RoomView_statusArea_expanded").should("not.exist");
    cy.get(".mx_EventTile.mx_EventTile_last .mx_EventTile_receiptSent").should("exist");
};

describe("FilePanel", () => {
    let homeserver: HomeserverInstance;

    beforeEach(() => {
        cy.startHomeserver("default").then((data) => {
            homeserver = data;
            cy.initTestUser(homeserver, NAME).then(() =>
                cy.window({ log: false }).then(() => {
                    cy.createRoom({ name: ROOM_NAME });
                }),
            );
        });

        // Open the file panel
        viewRoomSummaryByName(ROOM_NAME);
        cy.get(".mx_RoomSummaryCard_icon_files").click();
        cy.get(".mx_FilePanel").should("have.length", 1);
    });

    afterEach(() => {
        cy.stopHomeserver(homeserver);
    });

    describe("render", () => {
        it("should render empty state", () => {
            // Wait until the information about the empty state is rendered
            cy.get(".mx_FilePanel_empty").should("exist");

            // Take a snapshot of RightPanel - fix https://github.com/vector-im/element-web/issues/25332
            cy.get(".mx_RightPanel").percySnapshotElement("File Panel - empty", {
                widths: [264], // Emulate the UI. The value is based on minWidth specified on MainSplit.tsx
            });
        });

        it("should list tiles on the panel", () => {
            // Upload multiple files
            uploadFile("cypress/fixtures/riot.png"); // Image
            uploadFile("cypress/fixtures/1sec.ogg"); // Audio
            uploadFile("cypress/fixtures/matrix-org-client-versions.json"); // JSON

            cy.get(".mx_RoomView_body").within(() => {
                // Assert that all of the file were uploaded and rendered
                cy.get(".mx_EventTile[data-layout='group']").should("have.length", 3);

                // Assert that the image exists and has the alt string
                cy.get(".mx_EventTile[data-layout='group'] img[alt='riot.png']").should("exist");

                // Assert that the audio player is rendered
                cy.get(".mx_EventTile[data-layout='group'] .mx_AudioPlayer_container").should("exist");

                // Assert that the file button exists
                cy.contains(".mx_EventTile_last[data-layout='group'] .mx_MFileBody", ".json").should("exist");
            });

            // Assert that the file panel is opened inside mx_RightPanel and visible
            cy.get(".mx_RightPanel .mx_FilePanel").should("be.visible");

            cy.get(".mx_FilePanel").within(() => {
                cy.get(".mx_RoomView_MessageList").within(() => {
                    // Assert that data-layout attribute is not applied to file tiles on the panel
                    cy.get(".mx_EventTile[data-layout]").should("not.exist");

                    // Assert that all of the file tiles are rendered
                    cy.get(".mx_EventTile").should("have.length", 3);

                    // Assert that the download links are rendered
                    cy.get(".mx_MFileBody_download").should("have.length", 3);

                    // Assert that the sender of the files is rendered on all of the tiles
                    cy.findAllByText(NAME).should("have.length", 3);

                    // Detect the image file
                    cy.get(".mx_EventTile_mediaLine.mx_EventTile_image").within(() => {
                        // Assert that the image is specified as thumbnail and has the alt string
                        cy.get(".mx_MImageBody").within(() => {
                            cy.get("img[class='mx_MImageBody_thumbnail']").should("exist");
                            cy.get("img[alt='riot.png']").should("exist");
                        });
                    });

                    // Detect the audio file
                    cy.get(".mx_EventTile_mediaLine .mx_MAudioBody").within(() => {
                        // Assert that the audio player is rendered
                        cy.get(".mx_AudioPlayer_container").within(() => {
                            // Assert that the play button is rendered
                            cy.findByRole("button", { name: "Play" }).should("exist");
                        });
                    });

                    // Detect the JSON file
                    // Assert that the tile is rendered as a button
                    cy.get(".mx_EventTile_mediaLine .mx_MFileBody .mx_MFileBody_info[role='button']").within(() => {
                        // Assert that the file name is rendered inside the button with ellipsis
                        cy.get(".mx_MFileBody_info_filename").within(() => {
                            cy.findByText(/matrix.*?\.json/);
                        });
                    });
                });
            });

            // Make the viewport tall enough to display all of the file tiles on FilePanel
            cy.viewport(660, 1000);

            cy.get(".mx_FilePanel").within(() => {
                // In case the panel is scrollable on the resized viewport
                cy.get(".mx_ScrollPanel").scrollTo("bottom", { ensureScrollable: false });

                // Assert that the value for flexbox is applied
                cy.get(".mx_ScrollPanel .mx_RoomView_MessageList").should("have.css", "justify-content", "flex-end");

                // Assert that all of the file tiles are visible before taking a snapshot
                cy.get(".mx_RoomView_MessageList").within(() => {
                    cy.get(".mx_MImageBody").should("be.visible"); // top
                    cy.get(".mx_MAudioBody").should("be.visible"); // middle
                    cy.get(".mx_EventTile_last").within(() => {
                        // bottom
                        cy.get(".mx_EventTile_senderDetails").within(() => {
                            cy.get(".mx_DisambiguatedProfile").should("be.visible");
                            cy.get(".mx_MessageTimestamp").should("be.visible");
                        });
                    });
                });
            });

            // Exclude timestamps and read markers from snapshot
            // FIXME: hide mx_SeekBar because flaky - see https://github.com/vector-im/element-web/issues/24897
            //   Remove this once https://github.com/vector-im/element-web/issues/24898 is fixed.
            const percyCSS =
                ".mx_MessageTimestamp, .mx_MessagePanel_myReadMarker, .mx_SeekBar { visibility: hidden !important; }";

            // Take a snapshot of file tiles list on FilePanel
            cy.get(".mx_FilePanel .mx_RoomView_MessageList").percySnapshotElement("File tiles list on FilePanel", {
                percyCSS,
                widths: [250], // magic number, should be around the default width
            });
        });

        it("should render the audio player and play the audio file on the panel", () => {
            // Upload an image file
            uploadFile("cypress/fixtures/1sec.ogg");

            cy.get(".mx_FilePanel").within(() => {
                cy.get(".mx_RoomView_MessageList").within(() => {
                    // Detect the audio file
                    cy.get(".mx_EventTile_mediaLine .mx_MAudioBody").within(() => {
                        // Assert that the audio player is rendered
                        cy.get(".mx_AudioPlayer_container").within(() => {
                            // Assert that the audio file information is rendered
                            cy.get(".mx_AudioPlayer_mediaInfo").within(() => {
                                cy.get(".mx_AudioPlayer_mediaName").within(() => {
                                    cy.findByText("1sec.ogg");
                                });
                                cy.contains(".mx_AudioPlayer_byline", "00:01").should("exist");
                                cy.contains(".mx_AudioPlayer_byline", "(3.56 KB)").should("exist"); // actual size
                            });

                            // Assert that the duration counter is 00:01 before clicking the play button
                            cy.contains(".mx_AudioPlayer_mediaInfo time", "00:01").should("exist");

                            // Assert that the counter is zero before clicking the play button
                            cy.contains(".mx_AudioPlayer_seek [role='timer']", "00:00").should("exist");

                            // Click the play button
                            cy.wait(500);
                            cy.findByRole("button", { name: "Play" }).click();

                            // Assert that the pause button is rendered
                            cy.findByRole("button", { name: "Pause" }).should("exist");

                            // Assert that the timer is reset when the audio file finished playing
                            cy.contains(".mx_AudioPlayer_seek [role='timer']", "00:00").should("exist");

                            // Assert that the play button is rendered
                            cy.findByRole("button", { name: "Play" }).should("exist");
                        });
                    });
                });
            });
        });

        it("should render file size in kibibytes on a file tile", () => {
            const size = "1.12 KB"; // actual file size in kibibytes (1024 bytes)

            // Upload a file
            uploadFile("cypress/fixtures/matrix-org-client-versions.json");

            cy.get(".mx_FilePanel .mx_EventTile").within(() => {
                // Assert that the file size is displayed in kibibytes, not kilobytes (1000 bytes)
                // See: https://github.com/vector-im/element-web/issues/24866
                cy.contains(".mx_MFileBody_info_filename", size).should("exist");
                cy.get(".mx_MFileBody_download").within(() => {
                    cy.contains("a", size).should("exist");
                    cy.contains(".mx_MImageBody_size", size).should("exist");
                });
            });
        });
    });

    describe("download", () => {
        it("should download an image via the link on the panel", () => {
            // Upload an image file
            uploadFile("cypress/fixtures/riot.png");

            cy.get(".mx_FilePanel").within(() => {
                cy.get(".mx_RoomView_MessageList").within(() => {
                    // Detect the image file on the panel
                    cy.get(".mx_EventTile_mediaLine.mx_EventTile_image .mx_MImageBody").within(() => {
                        // Click the anchor link (not the image itself)
                        cy.get(".mx_MFileBody_download a").click();
                        cy.readFile("cypress/downloads/riot.png").should("exist");
                    });
                });
            });
        });
    });
});