/* eslint-disable @typescript-eslint/naming-convention */
import { ThemeOptions as SystemThemeOptions, Theme as SystemTheme } from '@mui/system';
import { OverridableStringUnion } from '@mui/types';
import { Mixins, MixinsOptions } from './createMixins';
import { Palette, PaletteOptions } from './createPalette';
import { Typography, TypographyOptions } from './createTypography';
import { Shadows } from './shadows';
import { Transitions, TransitionsOptions } from './createTransitions';
import { ZIndex, ZIndexOptions } from './zIndex';
import { Components } from './components';

/**
 * default MD color-schemes
 */
export type DefaultColorScheme = 'light' | 'dark';

/**
 * The application can add more color-scheme by extending this interface via module augmentation
 *
 * Ex.
 * declare module @mui/material/styles {
 *   interface ColorSchemeOverrides {
 *     foo: true;
 *   }
 * }
 *
 * // SupportedColorScheme = 'light' | 'dark' | 'foo';
 */
export interface ColorSchemeOverrides {}
export type ExtendedColorScheme = OverridableStringUnion<never, ColorSchemeOverrides>;

/**
 * All color-schemes that the application has
 */
export type SupportedColorScheme = DefaultColorScheme | ExtendedColorScheme;

export interface Opacity {
  placeholder: number;
  inputTouchBottomLine: number;
}

export type Overlays = [
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
  string | undefined,
];

export interface ThemeOptions extends Omit<SystemThemeOptions, 'zIndex'> {
  mixins?: MixinsOptions;
  components?: Components<BaseTheme>;
  colorSchemes?: Record<
    SupportedColorScheme,
    {
      palette?: PaletteOptions;
      opacity?: Partial<Opacity>;
      overlays?: Overlays;
    }
  >;
  shadows?: Shadows;
  transitions?: TransitionsOptions;
  typography?: TypographyOptions | ((palette: Palette) => TypographyOptions);
  zIndex?: ZIndexOptions;
  unstable_strictMode?: boolean;
}

interface BaseTheme extends SystemTheme {
  mixins: Mixins;
  palette: Palette;
  opacity: Opacity;
  overlays: Overlays;
  shadows: Shadows;
  transitions: Transitions;
  typography: Typography;
  zIndex: ZIndex;
  unstable_strictMode?: boolean;
  colorSchemes: Record<string, { palette: Palette }>;
}

// shut off automatic exporting for the `BaseTheme` above
export {};

/**
 * Our [TypeScript guide on theme customization](https://mui.com/material-ui/guides/typescript/#customization-of-theme) explains in detail how you would add custom properties.
 */
export interface Theme extends BaseTheme {
  components?: Components<BaseTheme>;
}

/**
 * Generate a theme base on the options received.
 * @param options Takes an incomplete theme object and adds the missing parts.
 * @param args Deep merge the arguments with the about to be returned theme.
 * @returns A complete, ready-to-use theme object.
 */
export default function experimental_extendTheme(options?: ThemeOptions, ...args: object[]): Theme;