/**
 * InvertContrastModal - 反色对比Modal组件
 *
 * 完整布局：左侧缩略图列表 + 中间对比区域 + 底部工具栏
 */
import React, { useEffect } from 'react';
import { Modal } from 'antd';
import * as cornerstone from '@cornerstonejs/core';
import { useSelector, useDispatch } from 'react-redux';
import { RootState, AppDispatch } from '@/states/store';
import {
  selectIsModalOpen,
  selectSelectedPositions,
  closeInvertContrastModal,
  updateSelectedPositions
} from '@/states/view/invertContrastSlice';
import { StackViewerWithErrorBoundary, invertContrast } from './viewers/stack.image.viewer';
import InvertContrastThumbnailList from './InvertContrastThumbnailList';
import InvertContrastToolbar from './InvertContrastToolbar';

const InvertContrastModal: React.FC = () => {
  const dispatch = useDispatch<AppDispatch>();
  const isOpen = useSelector(selectIsModalOpen);
  const selectedPositions = useSelector(selectSelectedPositions);
  const renderingEngineId = 'myRenderingEngine'; // 重用主渲染引擎

  // 获取左图和右图的URL
  const leftImageUrl = selectedPositions[0] || '';
  const rightImageUrl = selectedPositions[1] || selectedPositions[0] || ''; // 如果只有一个选择，右图和左图相同但应用反色

  const handleClose = () => {
    console.log('[InvertContrastModal] Closing modal');
    dispatch(closeInvertContrastModal());
  };

  // 应用反色效果到右侧图像
  useEffect(() => {
    if (isOpen && leftImageUrl && rightImageUrl) {
      console.log('[InvertContrastModal] Modal opened with:', { leftImageUrl, rightImageUrl });

      // Modal打开后，等待右侧viewport创建完成，然后应用反色
      const timer = setTimeout(() => {
        const rightViewportId = 'invert-contrast-right';
        try {
          console.log(`[InvertContrastModal] Applying invert to ${rightViewportId} using renderingEngine ${renderingEngineId}`);
          invertContrast(rightViewportId);
          console.log('[InvertContrastModal] Invert applied successfully');
        } catch (error) {
          console.error('[InvertContrastModal] Failed to apply invert:', error);
          console.error('[InvertContrastModal] Error stack:', error.stack);
        }
      }, 500); // 增加延迟到500ms确保viewport完全加载

      return () => clearTimeout(timer);
    }
  }, [isOpen, leftImageUrl, rightImageUrl]);

  // 工具栏事件处理
  const handleRotateLeft = () => {
    console.log('[InvertContrastModal] Rotate left clicked');
    // TODO: 实现旋转逻辑
  };

  const handleRotateRight = () => {
    console.log('[InvertContrastModal] Rotate right clicked');
    // TODO: 实现旋转逻辑
  };

  const handleHorizontalFlip = () => {
    console.log('[InvertContrastModal] Horizontal flip clicked');
    // TODO: 实现水平翻转逻辑
  };

  const handleVerticalFlip = () => {
    console.log('[InvertContrastModal] Vertical flip clicked');
    // TODO: 实现垂直翻转逻辑
  };

  const handleZoomIn = () => {
    console.log('[InvertContrastModal] Zoom in clicked');
    // TODO: 实现放大逻辑
  };

  const handleZoomOut = () => {
    console.log('[InvertContrastModal] Zoom out clicked');
    // TODO: 实现缩小逻辑
  };

  const handleReset = () => {
    console.log('[InvertContrastModal] Reset clicked');
    // TODO: 实现重置逻辑
  };

  if (!isOpen) {
    return null;
  }

  return (
    <Modal
      title="反色对比"
      open={isOpen}
      onCancel={handleClose}
      width="95vw"
      style={{
        top: 20,
        maxWidth: '95vw',
      }}
      bodyStyle={{
        height: '85vh',
        padding: 0,
        display: 'flex',
        flexDirection: 'column',
      }}
      footer={null}
      destroyOnClose // 关闭时销毁内容，避免状态残留
      maskClosable={false} // 防止点击遮罩关闭
    >
      {/* 主内容区域 */}
      <div style={{
        display: 'flex',
        flex: 1,
        height: 'calc(100% - 50px)', // 减去工具栏高度
      }}>
        {/* 左侧：缩略图列表 */}
        <div style={{
          width: '280px',
          borderRight: '1px solid #d9d9d9',
          backgroundColor: '#fafafa',
        }}>
          <InvertContrastThumbnailList />
        </div>

        {/* 右侧：对比区域 */}
        <div style={{
          flex: 1,
          display: 'grid',
          gridTemplateColumns: '1fr 1fr',
          gap: '8px',
          padding: '16px',
          backgroundColor: '#000',
        }}>
          {/* 左侧对比图 */}
          <div style={{
            border: '1px solid #d9d9d9',
            position: 'relative',
            display: 'flex',
            flexDirection: 'column',
            backgroundColor: '#000'
          }}>
            <div style={{
              position: 'absolute',
              top: 8,
              left: 8,
              zIndex: 10,
              background: 'rgba(0,0,0,0.7)',
              color: '#fff',
              padding: '4px 8px',
              borderRadius: '4px',
              fontSize: '14px'
            }}>
              {selectedPositions.length > 1 ? '原图' : '对比图'}
            </div>
            {leftImageUrl && (
              <div style={{ flex: 1, overflow: 'hidden' }}>
                <StackViewerWithErrorBoundary
                  imageIndex={0}
                  imageUrls={[leftImageUrl]}
                  viewportId="invert-contrast-left"
                  renderingEngineId={renderingEngineId}
                  selected={false}
                />
              </div>
            )}
          </div>

          {/* 右侧反色图 */}
          <div style={{
            border: '1px solid #d9d9d9',
            position: 'relative',
            display: 'flex',
            flexDirection: 'column',
            backgroundColor: '#000'
          }}>
            <div style={{
              position: 'absolute',
              top: 8,
              left: 8,
              zIndex: 10,
              background: 'rgba(0,0,0,0.7)',
              color: '#fff',
              padding: '4px 8px',
              borderRadius: '4px',
              fontSize: '14px'
            }}>
              反色图
            </div>
            {rightImageUrl && (
              <div style={{ flex: 1, overflow: 'hidden' }}>
                <StackViewerWithErrorBoundary
                  imageIndex={0}
                  imageUrls={[rightImageUrl]}
                  viewportId="invert-contrast-right"
                  renderingEngineId={renderingEngineId}
                  selected={false}
                />
              </div>
            )}
          </div>
        </div>
      </div>

      {/* 底部工具栏 */}
      <InvertContrastToolbar
        onRotateLeft={handleRotateLeft}
        onRotateRight={handleRotateRight}
        onHorizontalFlip={handleHorizontalFlip}
        onVerticalFlip={handleVerticalFlip}
        onZoomIn={handleZoomIn}
        onZoomOut={handleZoomOut}
        onReset={handleReset}
      />
    </Modal>
  );
};

export default InvertContrastModal;