/* @vitest-environment jsdom */

import { fireEvent, render, screen, within } from '@testing-library/react';
import { useState } from 'react';
import { describe, expect, it, vi } from 'vitest';

import type { GenerateDialogState } from './ImageCanvasEditorTypes';
import { ImageCanvasGenerationImageOptionsView } from './ImageCanvasGenerationImageOptionsView';
import {
  calculateEditorImageGenerationPrice,
  IMAGE_MODEL_GPT_IMAGE_2,
  IMAGE_MODEL_NANOBANANA2,
} from './ImageCanvasGenerationModel';

function ImageOptionsHarness({
  initialDialog,
  includeDimensions = true,
  hasPendingImageReferenceUploads = false,
  onRememberImageModel = vi.fn(),
  lockedModel,
}: {
  initialDialog: GenerateDialogState;
  includeDimensions?: boolean;
  hasPendingImageReferenceUploads?: boolean;
  onRememberImageModel?: (model: string) => void;
  lockedModel?: string;
}) {
  const [dialog, setDialog] = useState<GenerateDialogState | null>(
    initialDialog,
  );

  return dialog ? (
    <div>
      <ImageCanvasGenerationImageOptionsView
        dialog={dialog}
        setGenerateDialog={setDialog}
        includeDimensions={includeDimensions}
        hasPendingImageReferenceUploads={hasPendingImageReferenceUploads}
        onRememberImageModel={onRememberImageModel}
        lockedModel={lockedModel}
        cost={calculateEditorImageGenerationPrice({
          model: lockedModel ?? dialog.imageModel,
          imageSize: dialog.imageSize,
        })}
        submitLabel="生成"
        submitAriaLabel="生成角色形象"
        onSubmitRequest={() => undefined}
      />
      <output aria-label="当前模型">{dialog.imageModel}</output>
      <output aria-label="当前比例">{dialog.aspectRatio}</output>
      <output aria-label="当前尺寸">{dialog.imageSize}</output>
      <output aria-label="当前风格">{dialog.style ?? '-'}</output>
      <output aria-label="当前状态">{dialog.status}</output>
      <output aria-label="当前错误">{dialog.errorMessage ?? '-'}</output>
      <output aria-label="当前参考图数量">
        {dialog.mode === 'character'
          ? (dialog.characterReferences?.length ?? 0)
          : dialog.mode === 'publication'
            ? (dialog.publicationReferences?.length ?? 0)
            : (dialog.generationReferences?.length ?? 0)}
      </output>
      <output aria-label="当前占位">
        {dialog.placeholder
          ? [
              dialog.placeholder.x,
              dialog.placeholder.y,
              dialog.placeholder.width,
              dialog.placeholder.height,
              dialog.placeholder.originalWidth,
              dialog.placeholder.originalHeight,
            ].join(':')
          : '-'}
      </output>
    </div>
  ) : null;
}

describe('ImageCanvasGenerationImageOptionsView', () => {
  it.each(['generate', 'character', 'icon'] as const)(
    'shows and updates the pixel art style for %s generation',
    (mode) => {
      render(
        <ImageOptionsHarness
          initialDialog={{
            mode,
            prompt: '',
            status: 'failed',
            errorMessage: '旧错误',
            style: 'none',
            imageModel: IMAGE_MODEL_NANOBANANA2,
            aspectRatio: '1:1',
            imageSize: '1K',
          }}
        />,
      );

      const toggle = screen.getByRole('checkbox', {
        name: '像素艺术',
      }) as HTMLInputElement;
      const modelButton = screen.getByRole('button', {
        name: '生成图片模型 nanobanana2',
      });
      expect(toggle.checked).toBe(false);
      expect(
        toggle.compareDocumentPosition(modelButton) &
          Node.DOCUMENT_POSITION_FOLLOWING,
      ).not.toBe(0);

      fireEvent.click(toggle);

      expect(toggle.checked).toBe(true);
      expect(screen.getByLabelText('当前风格').textContent).toBe('pixelArt');
      expect(screen.getByLabelText('当前状态').textContent).toBe('idle');
      expect(screen.getByLabelText('当前错误').textContent).toBe('-');
    },
  );

  it.each(['spec', 'quick-edit', 'ui-design', 'publication'] as const)(
    'does not show the pixel art style for %s generation',
    (mode) => {
      render(
        <ImageOptionsHarness
          initialDialog={{
            mode,
            prompt: '',
            status: 'idle',
            imageModel: IMAGE_MODEL_NANOBANANA2,
            aspectRatio: '1:1',
            imageSize: '1K',
          }}
        />,
      );

      expect(screen.queryByRole('checkbox', { name: '像素艺术' })).toBeNull();
    },
  );

  it('updates dimensions from a menu, keeps the menu open and marks the selection', () => {
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'character',
          prompt: '',
          status: 'failed',
          errorMessage: '旧错误',
          imageModel: IMAGE_MODEL_NANOBANANA2,
          aspectRatio: '1:1',
          imageSize: '1K',
        }}
      />,
    );

    fireEvent.click(
      screen.getByRole('button', { name: '生成图片尺寸 1:1·1K' }),
    );
    const panel = screen.getByRole('menu', { name: '生成图片尺寸选项' });

    fireEvent.click(within(panel).getByRole('button', { name: '16:9' }));
    fireEvent.click(within(panel).getByRole('button', { name: '2K' }));

    expect(screen.getByRole('menu', { name: '生成图片尺寸选项' })).toBeTruthy();
    expect(
      within(panel)
        .getByRole('button', { name: '16:9' })
        .getAttribute('aria-pressed'),
    ).toBe('true');
    expect(
      within(panel)
        .getByRole('button', { name: '2K' })
        .getAttribute('aria-pressed'),
    ).toBe('true');
    expect(
      screen.getByRole('button', { name: '生成图片尺寸 16:9·2K' }),
    ).toBeTruthy();
    expect(screen.getByLabelText('当前比例').textContent).toBe('16:9');
    expect(screen.getByLabelText('当前尺寸').textContent).toBe('2K');
    expect(screen.getByLabelText('当前状态').textContent).toBe('idle');
    expect(screen.getByLabelText('当前错误').textContent).toBe('-');
  });

  it('closes option panels when clicking parent panel outside trigger buttons', () => {
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'generate',
          prompt: '',
          status: 'idle',
          imageModel: IMAGE_MODEL_NANOBANANA2,
          aspectRatio: '1:1',
          imageSize: '1K',
        }}
      />,
    );

    fireEvent.click(
      screen.getByRole('button', { name: '生成图片尺寸 1:1·1K' }),
    );
    expect(screen.getByRole('menu', { name: '生成图片尺寸选项' })).toBeTruthy();

    fireEvent.click(screen.getByLabelText('当前模型'));

    expect(screen.queryByRole('menu', { name: '生成图片尺寸选项' })).toBeNull();
  });

  it('renders model choices as one model per row and uses a check mark for selection', () => {
    const rememberImageModel = vi.fn();
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'icon',
          prompt: '',
          status: 'idle',
          imageModel: IMAGE_MODEL_NANOBANANA2,
          aspectRatio: '9:16',
          imageSize: '0.5K',
        }}
        onRememberImageModel={rememberImageModel}
      />,
    );

    fireEvent.click(
      screen.getByRole('button', { name: '生成图片模型 nanobanana2' }),
    );
    const panel = screen.getByRole('menu', { name: '生成图片模型选项' });

    expect(
      within(panel).getByRole('button', { name: 'nanobanana2' }),
    ).toBeTruthy();
    fireEvent.click(within(panel).getByRole('button', { name: 'gpt-image-2' }));

    expect(screen.getByRole('menu', { name: '生成图片模型选项' })).toBeTruthy();
    expect(rememberImageModel).toHaveBeenCalledWith(IMAGE_MODEL_GPT_IMAGE_2);
    expect(screen.getByLabelText('当前模型').textContent).toBe(
      IMAGE_MODEL_GPT_IMAGE_2,
    );
    expect(screen.getByLabelText('当前比例').textContent).toBe('9:16');
    expect(screen.getByLabelText('当前尺寸').textContent).toBe('1K');
    expect(
      screen.getByRole('button', { name: '生成图片模型 gpt-image-2' }),
    ).toBeTruthy();
    expect(
      screen.getByRole('button', { name: '生成角色形象' }).textContent,
    ).toBe('生成3泥点');
  });

  it('locks the model trigger when a fixed model is provided', () => {
    const rememberImageModel = vi.fn();
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'ui-design',
          prompt: '',
          status: 'idle',
          imageModel: 'nanobanana2',
          aspectRatio: '16:9',
          imageSize: '1K',
        }}
        lockedModel={IMAGE_MODEL_GPT_IMAGE_2}
        onRememberImageModel={rememberImageModel}
      />,
    );

    const modelButton = screen.getByRole('button', {
      name: '生成图片模型 gpt-image-2',
    }) as HTMLButtonElement;

    expect(modelButton.disabled).toBe(true);
    expect(modelButton.closest('div')?.className).toContain(
      'image-canvas-editor__readonly-generation-option',
    );
    expect(modelButton.textContent).not.toContain('nanobanana2');
    fireEvent.click(modelButton);
    expect(screen.queryByRole('menu', { name: '生成图片模型选项' })).toBeNull();
    expect(rememberImageModel).not.toHaveBeenCalled();
  });

  it('rejects a model switch that would discard existing references', () => {
    const alertMock = vi.spyOn(window, 'alert').mockImplementation(() => {});
    const rememberImageModel = vi.fn();
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'icon',
          prompt: '',
          status: 'idle',
          imageModel: IMAGE_MODEL_NANOBANANA2,
          generationReferences: Array.from({ length: 8 }, (_, index) => ({
            id: `reference-${index + 1}`,
            label: `参考图${index + 1}`,
            src: `/reference-${index + 1}.png`,
          })),
        }}
        includeDimensions={false}
        onRememberImageModel={rememberImageModel}
      />,
    );

    expect(screen.getByLabelText('当前参考图数量').textContent).toBe('8');
    fireEvent.click(
      screen.getByRole('button', { name: '生成图片模型 nanobanana2' }),
    );
    fireEvent.click(
      within(screen.getByRole('menu', { name: '生成图片模型选项' })).getByRole(
        'button',
        { name: 'gpt-image-2' },
      ),
    );

    expect(alertMock).toHaveBeenCalledWith(
      '当前已有 8 张参考图，gpt-image-2 最多允许 4 张，请先删除多余参考图后再切换',
    );
    expect(screen.getByLabelText('当前参考图数量').textContent).toBe('8');
    expect(screen.getByLabelText('当前模型').textContent).toBe(
      IMAGE_MODEL_NANOBANANA2,
    );
    expect(rememberImageModel).not.toHaveBeenCalled();
  });

  it('rejects model switching while reference uploads are pending', () => {
    const alertMock = vi.spyOn(window, 'alert').mockImplementation(() => {});
    const rememberImageModel = vi.fn();
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'generate',
          prompt: '',
          status: 'idle',
          imageModel: IMAGE_MODEL_NANOBANANA2,
        }}
        hasPendingImageReferenceUploads
        onRememberImageModel={rememberImageModel}
      />,
    );

    fireEvent.click(
      screen.getByRole('button', { name: '生成图片模型 nanobanana2' }),
    );
    fireEvent.click(
      within(screen.getByRole('menu', { name: '生成图片模型选项' })).getByRole(
        'button',
        { name: 'gpt-image-2' },
      ),
    );

    expect(alertMock).toHaveBeenCalledWith(
      '参考图正在上传，请等待上传完成后再切换模型',
    );
    expect(screen.getByLabelText('当前模型').textContent).toBe(
      IMAGE_MODEL_NANOBANANA2,
    );
    expect(
      (
        screen.getByRole('button', {
          name: '生成角色形象',
        }) as HTMLButtonElement
      ).disabled,
    ).toBe(true);
    expect(rememberImageModel).not.toHaveBeenCalled();
  });

  it('renders option menus and shows mud point text in the submit button', () => {
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'generate',
          prompt: '',
          status: 'idle',
          imageModel: IMAGE_MODEL_NANOBANANA2,
          aspectRatio: '1:1',
          imageSize: '1K',
        }}
      />,
    );

    fireEvent.click(
      screen.getByRole('button', { name: '生成图片尺寸 1:1·1K' }),
    );

    expect(screen.getByRole('menu', { name: '生成图片尺寸选项' })).toBeTruthy();
    const submit = screen.getByRole('button', { name: '生成角色形象' });
    expect(submit.textContent).toBe('生成12泥点');
  });

  it('keeps fixed-card placeholders unchanged when model-only controls are shown', () => {
    render(
      <ImageOptionsHarness
        includeDimensions={false}
        initialDialog={{
          mode: 'publication',
          prompt: '',
          status: 'idle',
          imageModel: IMAGE_MODEL_NANOBANANA2,
          aspectRatio: '4:3',
          imageSize: '1K',
          placeholder: {
            x: 120,
            y: 160,
            width: 720,
            height: 540,
            originalWidth: 720,
            originalHeight: 540,
          },
        }}
      />,
    );

    expect(screen.queryByRole('button', { name: /生成图片尺寸/u })).toBeNull();

    fireEvent.click(
      screen.getByRole('button', { name: '生成图片模型 nanobanana2' }),
    );
    fireEvent.click(
      within(screen.getByRole('menu', { name: '生成图片模型选项' })).getByRole(
        'button',
        { name: 'gpt-image-2' },
      ),
    );

    expect(screen.getByLabelText('当前模型').textContent).toBe(
      IMAGE_MODEL_GPT_IMAGE_2,
    );
    expect(screen.getByLabelText('当前比例').textContent).toBe('4:3');
    expect(screen.getByLabelText('当前尺寸').textContent).toBe('1K');
    expect(screen.getByLabelText('当前占位').textContent).toBe(
      '120:160:720:540:720:540',
    );
  });

  it('keeps the canvas placeholder centered while syncing its ratio and size selection', () => {
    render(
      <ImageOptionsHarness
        initialDialog={{
          mode: 'character',
          prompt: '',
          status: 'idle',
          imageModel: IMAGE_MODEL_NANOBANANA2,
          aspectRatio: '1:1',
          imageSize: '1K',
          placeholder: {
            x: 100,
            y: 200,
            width: 420,
            height: 420,
            originalWidth: 1024,
            originalHeight: 1024,
          },
        }}
      />,
    );

    fireEvent.click(
      screen.getByRole('button', { name: '生成图片尺寸 1:1·1K' }),
    );
    const panel = screen.getByRole('menu', { name: '生成图片尺寸选项' });
    fireEvent.click(within(panel).getByRole('button', { name: '16:9' }));
    fireEvent.click(within(panel).getByRole('button', { name: '2K' }));

    expect(screen.getByLabelText('当前占位').textContent).toBe(
      '-714:-166:2048:1152:2048:1152',
    );
  });
});