import { ITheme, IStyle } from './ITheme';
import { Default } from './Default';
import { DefaultGray } from './DefaultGray';
import { Desert } from './Desert';
import { Sunburst } from './Sunburst';
import { A11YDark } from './A11YDark';
import { A11YLight } from './A11YLight';
import { AtelierCaveLight } from './AtelierCaveLight';
import { AtelierCaveDark } from './AtelierCaveDark';
import { BlueHintGray } from './BlueHintGray';
import { CSharpDark } from './CSharpDark';
import { ChatGPTDark } from './ChatGPTDark';
import { ThonnyDefaultLight } from './ThonnyDefaultLight';

type ThemeDictionary = { [key: string]: ITheme };

function MergeStyleProperties(object: IStyle) {
  if (!object || !Object.keys(object)) {
    return '';
  }

  const styleNameMap: { [key: string]: string } = {
    Color: 'color:#',
    Background: 'background:',
    BackgroundColor: 'background-color:',
    FontWeight: 'font-weight:',
    FontStyle: 'font-style:',
  };

  return Object.keys(object).reduce((p, c) => {
    if (
      (c === 'BackgroundColor' || c === 'Background') &&
      object[c] !== 'none'
    ) {
      return `${p}${styleNameMap[c]}#${object[c]};`;
    }
    return `${p}${styleNameMap[c]}${object[c]};`;
  }, '');
}

export const Themes: ThemeDictionary = {
  Default,
  DefaultGray,
  Desert,
  Sunburst,
  A11YDark,
  A11YLight,
  AtelierCaveLight,
  AtelierCaveDark,
  BlueHintGray,
  CSharpDark,
  ChatGPTDark,
  ThonnyDefaultLight,
};

export function GetLineNumberStyle(theme: string) {
  if (!Themes[theme]) {
    return '';
  }
  return MergeStyleProperties(Themes[theme].LineNumberStyle);
}

export function GetBackgroundStyle(theme: string) {
  if (!Themes[theme]) {
    return '';
  }
  return MergeStyleProperties(Themes[theme].BackgroundStyle);
}

/**
 * Returns a CSS style string for code references
 * @param theme Defined theme we're getting the style for
 * @param styleName Style name of the code snippet (ex: Keyword vs Punctuation)
 * @returns string
 */
export function GetGenericStyle(theme: string, styleName: string): string {
  if (!Themes[theme]) {
    return '';
  }
  return MergeStyleProperties(Themes[theme].CodeStyles[styleName]);
}