import { isSystemDarkTheme } from '../DomUtils/isDarkTheme';
import { usePickerConfig } from '../components/context/PickerConfigContext';
import {
  EmojiClickData,
  EmojiStyle,
  SkinTonePickerLocation,
  SkinTones,
  SuggestionMode,
  Theme
} from '../types/exposedTypes';

import { CategoriesConfig } from './categoryConfig';
import { PickerDimensions, PreviewConfig } from './config';

export function useSearchPlaceHolderConfig(): string {
  const { searchPlaceHolder } = usePickerConfig();
  return searchPlaceHolder;
}

export function useDefaultSkinToneConfig(): SkinTones {
  const { defaultSkinTone } = usePickerConfig();
  return defaultSkinTone;
}

export function useSkinTonesDisabledConfig(): boolean {
  const { skinTonesDisabled } = usePickerConfig();
  return skinTonesDisabled;
}

export function useEmojiStyleConfig(): EmojiStyle {
  const { emojiStyle } = usePickerConfig();
  return emojiStyle;
}

export function useAutoFocusSearchConfig(): boolean {
  const { autoFocusSearch } = usePickerConfig();
  return autoFocusSearch;
}

export function useCategoriesConfig(): CategoriesConfig {
  const { categories } = usePickerConfig();
  return categories;
}

export function useOnEmojiClickConfig(): (
  emoji: EmojiClickData,
  event: MouseEvent
) => void {
  const { onEmojiClick } = usePickerConfig();
  return onEmojiClick;
}

export function usePreviewConfig(): PreviewConfig {
  const { previewConfig } = usePickerConfig();
  return previewConfig;
}

export function useThemeConfig(): Theme {
  const { theme } = usePickerConfig();

  if (theme === Theme.AUTO) {
    return isSystemDarkTheme() ? Theme.DARK : Theme.LIGHT;
  }

  return theme;
}

export function useSuggestedEmojisModeConfig(): SuggestionMode {
  const { suggestedEmojisMode } = usePickerConfig();
  return suggestedEmojisMode;
}

export function useLazyLoadEmojisConfig(): boolean {
  const { lazyLoadEmojis } = usePickerConfig();
  return lazyLoadEmojis;
}

export function usePickerSizeConfig(): {
  height: PickerDimensions;
  width: PickerDimensions;
} {
  const { height, width } = usePickerConfig();
  return { height: getDimension(height), width: getDimension(width) };
}

export function useEmojiVersionConfig(): string | null {
  const { emojiVersion } = usePickerConfig();
  return emojiVersion;
}

export function useSearchDisabledConfig(): boolean {
  const { searchDisabled } = usePickerConfig();
  return searchDisabled;
}

export function useSkinTonePickerLocationConfig(): SkinTonePickerLocation {
  const { skinTonePickerLocation } = usePickerConfig();
  return skinTonePickerLocation;
}

export function useGetEmojiUrlConfig(): (
  unified: string,
  style: EmojiStyle
) => string {
  const { getEmojiUrl } = usePickerConfig();
  return getEmojiUrl;
}

function getDimension(dimensionConfig: PickerDimensions): PickerDimensions {
  return typeof dimensionConfig === 'number'
    ? `${dimensionConfig}px`
    : dimensionConfig;
}