import React, { useCallback, useRef, useState } from 'react';
import Editor, { Monaco, loader } from '@monaco-editor/react';
import { Box, BoxProps } from '@chakra-ui/react';
import MyIcon from '../../Icon';
import { getWebReqUrl } from '../../../../common/system/utils';

loader.config({
  paths: { vs: getWebReqUrl('/js/monaco-editor.0.45.0/vs') }
});

type EditorVariablePickerType = {
  key: string;
  label: string;
};

export type Props = Omit<BoxProps, 'resize' | 'onChange'> & {
  height?: number;
  resize?: boolean;
  defaultValue?: string;
  value?: string;
  onChange?: (e: string) => void;
  onOpenModal?: () => void;
  variables?: EditorVariablePickerType[];
  defaultHeight?: number;
};

const options = {
  lineNumbers: 'on',
  guides: {
    indentation: false
  },
  automaticLayout: true,
  minimap: {
    enabled: false
  },
  scrollbar: {
    verticalScrollbarSize: 4,
    horizontalScrollbarSize: 8,
    alwaysConsumeMouseWheel: false
  },
  lineNumbersMinChars: 0,
  fontSize: 14,
  scrollBeyondLastLine: false,
  folding: true,
  overviewRulerBorder: false,
  tabSize: 2
};

const MyEditor = ({
  defaultValue,
  value,
  onChange,
  resize,
  variables = [],
  defaultHeight = 200,
  onOpenModal,
  ...props
}: Props) => {
  const [height, setHeight] = useState(defaultHeight);
  const initialY = useRef(0);

  const handleMouseDown = useCallback((e: React.MouseEvent) => {
    initialY.current = e.clientY;

    const handleMouseMove = (e: MouseEvent) => {
      const deltaY = e.clientY - initialY.current;
      initialY.current = e.clientY;
      setHeight((prevHeight) => (prevHeight + deltaY < 100 ? 100 : prevHeight + deltaY));
    };

    const handleMouseUp = () => {
      document.removeEventListener('mousemove', handleMouseMove);
      document.removeEventListener('mouseup', handleMouseUp);
    };

    document.addEventListener('mousemove', handleMouseMove);
    document.addEventListener('mouseup', handleMouseUp);
  }, []);

  const beforeMount = useCallback((monaco: Monaco) => {
    monaco.languages.json.jsonDefaults.setDiagnosticsOptions({
      validate: false,
      allowComments: false,
      schemas: [
        {
          uri: 'http://myserver/foo-schema.json', // 一个假设的 URI
          fileMatch: ['*'], // 匹配所有文件
          schema: {} // 空的 Schema
        }
      ]
    });

    monaco.editor.defineTheme('JSONEditorTheme', {
      base: 'vs', // 可以基于已有的主题进行定制
      inherit: true, // 继承基础主题的设置
      rules: [{ token: 'variable', foreground: '2B5FD9' }],
      colors: {
        'editor.background': '#ffffff00',
        'editorLineNumber.foreground': '#aaa',
        'editorOverviewRuler.border': '#ffffff00',
        'editor.lineHighlightBackground': '#F7F8FA',
        'scrollbarSlider.background': '#E8EAEC',
        'editorIndentGuide.activeBackground': '#ddd',
        'editorIndentGuide.background': '#eee'
      }
    });
  }, []);

  return (
    <Box
      borderWidth={'1px'}
      borderRadius={'md'}
      borderColor={'myGray.200'}
      py={2}
      height={height}
      position={'relative'}
      pl={2}
      {...props}
    >
      <Editor
        height={'100%'}
        defaultLanguage="typescript"
        options={options as any}
        theme="JSONEditorTheme"
        beforeMount={beforeMount}
        defaultValue={defaultValue}
        value={value}
        onChange={(e) => {
          onChange?.(e || '');
        }}
      />
      {resize && (
        <Box
          position={'absolute'}
          right={'-1'}
          bottom={'-1'}
          zIndex={10}
          cursor={'ns-resize'}
          px={'4px'}
          onMouseDown={handleMouseDown}
        >
          <MyIcon name={'common/editor/resizer'} width={'16px'} height={'16px'} />
        </Box>
      )}
      {!!onOpenModal && (
        <Box
          zIndex={10}
          position={'absolute'}
          bottom={0}
          right={2}
          cursor={'pointer'}
          onClick={onOpenModal}
        >
          <MyIcon name={'common/fullScreenLight'} w={'14px'} color={'myGray.600'} />
        </Box>
      )}
    </Box>
  );
};

export default React.memo(MyEditor);