import {Extension} from '@codemirror/state';
import {
  crosshairCursor,
  drawSelection,
  dropCursor,
  EditorView,
  highlightActiveLine,
  highlightActiveLineGutter,
  highlightSpecialChars,
  keymap,
  lineNumbers,
  rectangularSelection,
} from '@codemirror/view';
import {
  bracketMatching,
  defaultHighlightStyle,
  foldGutter,
  foldKeymap,
  indentOnInput,
  syntaxHighlighting,
} from '@codemirror/language';
import {
  defaultKeymap,
  history,
  historyKeymap,
} from '@codemirror/commands';
import {highlightSelectionMatches, searchKeymap} from '@codemirror/search';
import {autocompletion, closeBrackets, closeBracketsKeymap, completionKeymap} from '@codemirror/autocomplete';
import {lintKeymap} from '@codemirror/lint';
import {baseDark, customHighlightActiveLine} from '@/editor/theme/base-dark';

// 基本编辑器设置，包含常用扩展
export const createBasicSetup = (): Extension[] => {
  return [
    // 主题相关
    baseDark,
    
    // 基础UI
    lineNumbers(),
    highlightActiveLineGutter(),
    highlightSpecialChars(),
    dropCursor(),
    EditorView.lineWrapping,
    
    // 历史记录
    history(),
    
    // 代码折叠
    foldGutter(),
    
    // 选择与高亮
    drawSelection(),
    customHighlightActiveLine,
    highlightActiveLine(),
    highlightSelectionMatches(),
    rectangularSelection(),
    crosshairCursor(),
    
    // 缩进和编辑辅助
    indentOnInput(),
    syntaxHighlighting(defaultHighlightStyle, {fallback: true}),
    bracketMatching(),
    closeBrackets(),
    
    // 自动完成
    autocompletion(),
    
    // 键盘映射
    keymap.of([
      ...closeBracketsKeymap,
      ...defaultKeymap,
      ...searchKeymap,
      ...historyKeymap,
      ...foldKeymap,
      ...completionKeymap,
      ...lintKeymap
    ]),
  ];
};