import * as vscode from 'vscode';
import { ViewerTheme } from '../webview/page';

/** Diagram theme from archify.theme: forced, VS Code's, or the diagram's own. */
export function viewerTheme(): ViewerTheme {
  const setting = vscode.workspace.getConfiguration('archify').get<string>('theme', 'vscode');
  if (setting === 'dark' || setting === 'light') return setting;
  if (setting === 'diagram') return undefined;
  const kind = vscode.window.activeColorTheme.kind;
  return kind === vscode.ColorThemeKind.Light || kind === vscode.ColorThemeKind.HighContrastLight ? 'light' : 'dark';
}