/**
 * Copyright 2023-present DreamNum Co., Ltd.
 *
 * 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 { ContextService, DrawingTypeEnum, ICommandService, IContextService, IImageIoService, ImageSourceType, Injector, IUniverInstanceService, LocaleService, ThemeService, UniverInstanceType } from '@univerjs/core';
import { IDrawingManagerService, SetDrawingSelectedOperation } from '@univerjs/drawing';
import { IRenderManagerService } from '@univerjs/engine-render';
import { IDialogService, ILayoutService, IMessageService, IShortcutService } from '@univerjs/ui';
import { NEVER, Subject } from 'rxjs';
import { afterEach, describe, expect, it, vi } from 'vitest';
import { ImageResetSizeOperation } from '../../commands/operations/image-reset-size.operation';
import { DOC_DRAWING_BEHIND_TEXT_LAYER_INDEX, DrawingRenderService } from '../../services/drawing-render.service';
import { ImageCropperController } from '../image-cropper.controller';
import { ImageUpdateController } from '../image-update.controller';

const injectors: Injector[] = [];

function createController(
    command: ICommandService,
    render: IRenderManagerService,
    drawing: IDrawingManagerService,
    dialog: IDialogService,
    imageIo: IImageIoService,
    instance: IUniverInstanceService,
    drawingRender: DrawingRenderService
) {
    const injector = new Injector([
        [ICommandService, { useValue: command }],
        [IRenderManagerService, { useValue: render }],
        [IDrawingManagerService, { useValue: drawing }],
        [IDialogService, { useValue: dialog }],
        [IImageIoService, { useValue: imageIo }],
        [IUniverInstanceService, { useValue: { ...instance, getCurrentTypeOfUnit$: () => NEVER } }],
        [DrawingRenderService, { useValue: drawingRender }],
        [IContextService, { useClass: ContextService }],
        [ThemeService],
        [LocaleService],
        [ILayoutService, { useValue: { focus: vi.fn() } }],
        [IMessageService, { useValue: { show: vi.fn() } }],
        [IShortcutService, { useValue: { registerShortcut: vi.fn(() => ({ dispose: vi.fn() })) } }],
        [ImageCropperController],
        [ImageUpdateController],
    ]);
    injectors.push(injector);
    return injector.get(ImageUpdateController);
}

afterEach(() => {
    injectors.splice(0).forEach((injector) => injector.dispose());
    vi.useRealTimers();
});

function createSheetUnit(unitId = 'book-1', subUnitId = 'sheet-1') {
    return {
        type: UniverInstanceType.UNIVER_SHEET,
        getUnitId: () => unitId,
        getActiveSheet: () => ({ getSheetId: () => subUnitId }),
    };
}

describe('ImageUpdateController', () => {
    it('resets image size after command execution and pushes updated drawing state back', () => {
        let commandHandler: ((command: { id: string; params?: unknown }) => void) | undefined;
        const changeNotification = vi.fn();
        const imageShape = {
            resetSize: vi.fn(),
            getNativeSize: vi.fn(() => ({ width: 320, height: 180 })),
        };
        const params = [{ unitId: 'book-1', subUnitId: 'sheet-1', drawingId: 'shape-1' }];
        const drawingManagerService = {
            add$: new Subject(),
            update$: new Subject(),
            getDrawingByParam: vi.fn(() => ({
                unitId: 'book-1',
                subUnitId: 'sheet-1',
                drawingId: 'shape-1',
                drawingType: DrawingTypeEnum.DRAWING_IMAGE,
                transform: { width: 100, height: 50, angle: 30 },
            })),
            featurePluginUpdateNotification: vi.fn(),
        };
        const commandService = {
            onCommandExecuted: vi.fn((handler) => {
                commandHandler = handler;
                return { dispose: vi.fn() };
            }),
            syncExecuteCommand: vi.fn(),
        };

        const controller = createController(
            commandService as never,
            {
                getRenderUnitById: vi.fn(() => ({
                    scene: {
                        getObject: vi.fn(() => imageShape),
                        getTransformerByCreate: vi.fn(() => ({
                            refreshControls: vi.fn(() => ({ changeNotification })),
                        })),
                    },
                })),
            } as never,
            drawingManagerService as never,
            {} as never,
            {} as never,
            { getUnit: vi.fn(() => createSheetUnit()), getFocusedUnit: vi.fn(() => createSheetUnit()) } as never,
            { renderImages: vi.fn() } as never
        );

        expect(controller).toBeTruthy();

        commandHandler!({ id: ImageResetSizeOperation.id, params });

        expect(imageShape.resetSize).toHaveBeenCalledTimes(1);
        expect(drawingManagerService.featurePluginUpdateNotification).toHaveBeenCalledWith([
            expect.objectContaining({
                drawingId: 'shape-1',
                srcRect: null,
                prstGeom: null,
                transform: expect.objectContaining({ width: 320, height: 180, angle: 0 }),
            }),
        ]);
        expect(changeNotification).toHaveBeenCalledTimes(1);
        expect(commandService.syncExecuteCommand).toHaveBeenCalledWith(SetDrawingSelectedOperation.id, params);
    });

    it('deduplicates add notifications before rendering newly inserted images', async () => {
        vi.useFakeTimers();
        const add$ = new Subject<Array<{ unitId: string; subUnitId: string; drawingId: string }>>();
        const update$ = new Subject();
        const imageParam = {
            unitId: 'book-1',
            subUnitId: 'sheet-1',
            drawingId: 'shape-2',
            drawingType: DrawingTypeEnum.DRAWING_IMAGE,
            transform: { width: 100, height: 50, angle: 0 },
        };
        const drawingManagerService = {
            add$,
            update$,
            getDrawingByParam: vi.fn(() => imageParam),
            refreshTransform: vi.fn(),
        };
        const renderImages = vi.fn(async () => []);

        const controller = createController(
            { onCommandExecuted: vi.fn(() => ({ dispose: vi.fn() })), syncExecuteCommand: vi.fn() } as never,
            {
                getRenderUnitById: vi.fn(() => ({
                    scene: { getTransformerByCreate: vi.fn(), getObject: vi.fn() },
                })),
            } as never,
            drawingManagerService as never,
            {} as never,
            {} as never,
            { getUnit: vi.fn(() => createSheetUnit()), getFocusedUnit: vi.fn(() => createSheetUnit()) } as never,
            { renderImages } as never
        );

        expect(controller).toBeTruthy();

        const duplicated = { unitId: 'book-1', subUnitId: 'sheet-1', drawingId: 'shape-2' };
        add$.next([duplicated]);
        add$.next([duplicated]);
        await vi.advanceTimersByTimeAsync(40);

        expect(renderImages).toHaveBeenCalledTimes(1);
        expect(drawingManagerService.refreshTransform).toHaveBeenCalledWith([imageParam]);
    });

    it('refreshes a loaded image from the current drawing state after updates during loading', async () => {
        vi.useFakeTimers();
        const add$ = new Subject<Array<{ unitId: string; subUnitId: string; drawingId: string }>>();
        const update$ = new Subject();
        const insertedImage = {
            unitId: 'book-1',
            subUnitId: 'sheet-1',
            drawingId: 'shape-2',
            drawingType: DrawingTypeEnum.DRAWING_IMAGE,
            transform: { left: 0, top: 0, width: 100, height: 50, angle: 0 },
        };
        const updatedImage = {
            ...insertedImage,
            transform: { ...insertedImage.transform, left: 200, top: 120 },
        };
        let currentImage = insertedImage;
        let finishRendering!: (images: never[]) => void;
        const renderImages = vi.fn(() => new Promise<never[]>((resolve) => {
            finishRendering = resolve;
        }));
        const refreshTransform = vi.fn();
        const controller = createController(
            { onCommandExecuted: vi.fn(() => ({ dispose: vi.fn() })), syncExecuteCommand: vi.fn() } as never,
            {
                getRenderUnitById: vi.fn(() => ({
                    scene: { getTransformerByCreate: vi.fn(), getObject: vi.fn() },
                })),
            } as never,
            {
                add$,
                update$,
                getDrawingByParam: vi.fn(() => currentImage),
                refreshTransform,
            } as never,
            {} as never,
            {} as never,
            { getUnit: vi.fn(() => createSheetUnit()), getFocusedUnit: vi.fn(() => createSheetUnit()) } as never,
            { renderImages } as never
        );

        add$.next([{ unitId: 'book-1', subUnitId: 'sheet-1', drawingId: 'shape-2' }]);
        await vi.advanceTimersByTimeAsync(40);
        currentImage = updatedImage;
        finishRendering([]);
        await Promise.resolve();

        expect(refreshTransform).toHaveBeenCalledWith([updatedImage]);

        controller.dispose();
    });

    it('applies refreshed transform, clip bounds, and behind-text layer to existing images', () => {
        const add$ = new Subject();
        const update$ = new Subject<Array<{ unitId: string; subUnitId: string; drawingId: string }>>();
        const transform = {
            angle: 0,
            clipBounds: { height: 120, left: 0, top: 0, width: 80 },
            height: 60,
            left: 10,
            top: 20,
            width: 100,
        };
        const imageParam = {
            behindText: true,
            drawingId: 'shape-3',
            drawingType: DrawingTypeEnum.DRAWING_IMAGE,
            imageSourceType: ImageSourceType.BASE64,
            source: 'data:image/png;base64,Zm9v',
            srcRect: { bottom: 0, left: 0, right: 0, top: 0 },
            subUnitId: 'sheet-1',
            transform,
            unitId: 'book-1',
        };
        const imageShape = {
            changeSource: vi.fn(),
            layer: { zIndex: 4 },
            setClipBounds: vi.fn(),
            setPrstGeom: vi.fn(),
            setSrcRect: vi.fn(),
            transformByState: vi.fn(),
        };
        const scene = {
            addObject: vi.fn(),
            getObject: vi.fn(() => imageShape),
            getTransformerByCreate: vi.fn(),
            removeObject: vi.fn(),
        };
        const drawingManagerService = {
            add$,
            update$,
            getDrawingByParam: vi.fn(() => imageParam),
        };

        const controller = createController(
            { onCommandExecuted: vi.fn(() => ({ dispose: vi.fn() })), syncExecuteCommand: vi.fn() } as never,
            {
                getRenderUnitById: vi.fn(() => ({ scene })),
            } as never,
            drawingManagerService as never,
            {} as never,
            {} as never,
            { getUnit: vi.fn(() => createSheetUnit()), getFocusedUnit: vi.fn(() => createSheetUnit()) } as never,
            { renderImages: vi.fn() } as never
        );

        expect(controller).toBeTruthy();

        update$.next([{ unitId: 'book-1', subUnitId: 'sheet-1', drawingId: 'shape-3' }]);

        expect(imageShape.transformByState).toHaveBeenCalledWith({
            angle: 0,
            flipX: false,
            flipY: false,
            height: 60,
            left: 10,
            skewX: 0,
            skewY: 0,
            top: 20,
            width: 100,
        });
        expect(imageShape.setClipBounds).toHaveBeenCalledWith(transform.clipBounds);
        expect(scene.removeObject).toHaveBeenCalledWith(imageShape);
        expect(scene.addObject).toHaveBeenCalledWith(imageShape, DOC_DRAWING_BEHIND_TEXT_LAYER_INDEX);
    });
});