/*
Copyright 2024, 2025 New Vector Ltd.
Copyright 2022 The Matrix.org Foundation C.I.C.

SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
Please see LICENSE files in the repository root for full details.
*/

import { ClientEvent, type MatrixClient, type Room, SyncState } from "matrix-js-sdk/src/matrix";
import { waitFor } from "jest-matrix-react";

import type BasePlatform from "../../../src/BasePlatform";
import SdkConfig from "../../../src/SdkConfig";
import { SettingLevel } from "../../../src/settings/SettingLevel";
import SettingsStore from "../../../src/settings/SettingsStore";
import { mkStubRoom, mockPlatformPeg, stubClient } from "../../test-utils";
import { type SettingKey } from "../../../src/settings/Settings.tsx";
import MatrixClientBackedController from "../../../src/settings/controllers/MatrixClientBackedController.ts";

const TEST_DATA = [
    {
        name: "Electron.showTrayIcon" as SettingKey,
        level: SettingLevel.PLATFORM,
        value: true,
    },
];

/**
 * An existing setting that has {@link IBaseSetting#supportedLevelsAreOrdered} set to true.
 */
const SETTING_NAME_WITH_CONFIG_OVERRIDE = "feature_msc3531_hide_messages_pending_moderation";

describe("SettingsStore", () => {
    let platformSettings: Record<string, any>;

    beforeAll(() => {
        jest.clearAllMocks();
        platformSettings = {};
        mockPlatformPeg({
            isLevelSupported: jest.fn().mockReturnValue(true),
            supportsSetting: jest.fn().mockReturnValue(true),
            setSettingValue: jest.fn().mockImplementation((settingName: string, value: any) => {
                platformSettings[settingName] = value;
            }),
            getSettingValue: jest.fn().mockImplementation((settingName: string) => {
                return platformSettings[settingName];
            }),
            reload: jest.fn(),
        } as unknown as BasePlatform);

        TEST_DATA.forEach((d) => {
            SettingsStore.setValue(d.name, null, d.level, d.value);
        });
    });

    beforeEach(() => {
        SdkConfig.reset();
    });

    describe("getValueAt", () => {
        TEST_DATA.forEach((d) => {
            it(`should return the value "${d.level}"."${d.name}"`, () => {
                expect(SettingsStore.getValueAt(d.level, d.name)).toBe(d.value);
                // regression test #22545
                expect(SettingsStore.getValueAt(d.level, d.name)).toBe(d.value);
            });
        });

        it(`supportedLevelsAreOrdered correctly overrides setting`, async () => {
            SdkConfig.put({
                features: {
                    [SETTING_NAME_WITH_CONFIG_OVERRIDE]: false,
                },
            });
            await SettingsStore.setValue(SETTING_NAME_WITH_CONFIG_OVERRIDE, null, SettingLevel.DEVICE, true);
            expect(SettingsStore.getValue(SETTING_NAME_WITH_CONFIG_OVERRIDE)).toBe(false);
        });

        it(`supportedLevelsAreOrdered doesn't incorrectly override setting`, async () => {
            await SettingsStore.setValue(SETTING_NAME_WITH_CONFIG_OVERRIDE, null, SettingLevel.DEVICE, true);
            expect(SettingsStore.getValueAt(SettingLevel.DEVICE, SETTING_NAME_WITH_CONFIG_OVERRIDE)).toBe(true);
        });
    });

    describe("runMigrations", () => {
        let client: MatrixClient;
        let room: Room;
        let localStorageSetItemSpy: jest.SpyInstance;
        let localStorageSetPromise: Promise<void>;

        beforeEach(() => {
            client = stubClient();
            room = mkStubRoom("!room:example.org", "Room", client);
            room.getAccountData = jest.fn().mockReturnValue({
                getContent: jest.fn().mockReturnValue({
                    urlPreviewsEnabled_e2ee: true,
                }),
            });
            client.getRooms = jest.fn().mockReturnValue([room]);
            client.getRoom = jest.fn().mockReturnValue(room);

            localStorageSetPromise = new Promise((resolve) => {
                localStorageSetItemSpy = jest
                    .spyOn(localStorage.__proto__, "setItem")
                    .mockImplementation(() => resolve());
            });
        });

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

        it("migrates URL previews setting for e2ee rooms", async () => {
            SettingsStore.runMigrations(false);
            client.emit(ClientEvent.Sync, SyncState.Prepared, null);

            expect(room.getAccountData).toHaveBeenCalled();

            await localStorageSetPromise;

            expect(localStorageSetItemSpy!).toHaveBeenCalledWith(
                `mx_setting_urlPreviewsEnabled_e2ee_${room.roomId}`,
                JSON.stringify({ value: true }),
            );
        });

        it("does not migrate e2ee URL previews on a fresh login", async () => {
            SettingsStore.runMigrations(true);
            client.emit(ClientEvent.Sync, SyncState.Prepared, null);

            expect(room.getAccountData).not.toHaveBeenCalled();
        });

        it("does not migrate if the device is flagged as migrated", async () => {
            jest.spyOn(localStorage.__proto__, "getItem").mockImplementation((key: unknown): string | undefined => {
                if (key === "url_previews_e2ee_migration_done") return JSON.stringify({ value: true });
                return undefined;
            });
            SettingsStore.runMigrations(false);
            client.emit(ClientEvent.Sync, SyncState.Prepared, null);

            expect(room.getAccountData).not.toHaveBeenCalled();
        });

        describe("Migrate media preview configuration", () => {
            beforeEach(() => {
                MatrixClientBackedController.matrixClient = client;
                client.getAccountData = jest.fn().mockImplementation((type) => {
                    if (type === "im.vector.web.settings") {
                        return {
                            getContent: jest.fn().mockReturnValue({
                                showImages: false,
                                showAvatarsOnInvites: false,
                            }),
                        };
                    } else {
                        return undefined;
                    }
                });
            });

            it("migrates media preview configuration immediately", async () => {
                client.setAccountData = jest.fn();
                SettingsStore.runMigrations(false);
                expect(client.setAccountData).toHaveBeenCalledWith("io.element.msc4278.media_preview_config", {
                    invite_avatars: "off",
                    media_previews: "off",
                });
            });
            it("migrates media preview configuration once client is ready", async () => {
                client.setAccountData = jest.fn();
                const mockInitialSync = (client.isInitialSyncComplete = jest.fn().mockReturnValue(false));
                SettingsStore.runMigrations(false);
                mockInitialSync.mockReturnValue(true);
                client.emit(ClientEvent.Sync, SyncState.Prepared, null);
                // Update is asynchronous
                waitFor(() => {
                    expect(client.setAccountData).toHaveBeenCalledWith("io.element.msc4278.media_preview_config", {
                        invite_avatars: "off",
                        media_previews: "off",
                    });
                });
            });

            it("does not migrate media preview configuration if the session is fresh", async () => {
                client.setAccountData = jest.fn();
                SettingsStore.runMigrations(true);
                client.emit(ClientEvent.Sync, SyncState.Prepared, null);
                expect(client.setAccountData).not.toHaveBeenCalled();
            });

            it("does not migrate media preview configuration if the account data is already set", async () => {
                client.setAccountData = jest.fn();
                client.getAccountData = jest.fn().mockReturnValue({});
                SettingsStore.runMigrations(false);
                client.emit(ClientEvent.Sync, SyncState.Prepared, null);
                expect(client.setAccountData).not.toHaveBeenCalled();
            });
        });
    });
});
