import type monaco from 'monaco-editor';

/** A single label matcher from the stream selector, e.g. {job="nginx"}. */
export interface LabelMatcher {
  label: string;
  operator: string;
  value: string;
}

export interface LokiEditorProps {
  className?: string;
  maxHeight?: number | string;
  fontSize?: number;
  size?: 'small' | 'middle' | 'large';
  theme?: 'light' | 'dark';
  value?: string;
  placeholder?: string;
  enableAutocomplete?: boolean;
  readOnly?: boolean;
  disabled?: boolean;
  variables?: string[];
  onChange?: (value: string) => void;
  onEnter?: (value: string) => void;
  onBlur?: (value: string) => void;
  onFocus?: (value: string) => void;
  editorDidMount?: (editor: monaco.editor.IStandaloneCodeEditor) => void;
  /** Async provider for label names used in stream selector completion. Receives current matchers for context. */
  fetchLabelNames?: (currentMatchers: LabelMatcher[]) => Promise<string[]>;
  /** Async provider for label values used in stream selector completion. Receives current matchers for context. */
  fetchLabelValues?: (labelName: string, currentMatchers: LabelMatcher[]) => Promise<string[]>;
}

export interface LokiCompletionContext {
  prefix: string;
}