import * as React from 'react';
import { WithTheme } from '../styles/withTheme';
import { ConsistentWith, Overwrite } from '..';
import { Theme } from './createMuiTheme';
import * as CSS from 'csstype';
import * as JSS from 'jss'

export interface CSSProperties extends CSS.Properties<number | string> {
  // Allow pseudo selectors and media queries
  [k: string]: CSS.Properties<number | string>[keyof CSS.Properties] | CSSProperties;
}

/**
 * This is basically the API of JSS. It defines a Map<string, CSS>,
 * where
 *
 * - the `keys` are the class (names) that will be created
 * - the `values` are objects that represent CSS rules (`React.CSSProperties`).
 */
export type StyleRules<ClassKey extends string = string> = Record<ClassKey, CSSProperties>;

export type StyleRulesCallback<ClassKey extends string = string> = (
  theme: Theme,
) => StyleRules<ClassKey>;

export interface StylesCreator {
  create(theme: Theme, name: string): StyleRules;
  options: { index: number };
  themingEnabled: boolean;
}

export interface WithStylesOptions<ClassKey extends string = string> extends JSS.CreateStyleSheetOptions<ClassKey> {
  flip?: boolean;
  withTheme?: boolean;
  name?: string;
}

export type ClassNameMap<ClassKey extends string = string> = Record<ClassKey, string>;

export type WithStyles<T extends string | StyleRules | StyleRulesCallback> = Partial<WithTheme> & {
  classes: ClassNameMap<
    T extends string ? T :
    T extends StyleRulesCallback<infer K> ? K :
    T extends StyleRules<infer K> ? K :
    never
  >;
};

export interface StyledComponentProps<ClassKey extends string = string> {
  classes?: Partial<ClassNameMap<ClassKey>>;
  innerRef?: React.Ref<any> | React.RefObject<any>;
}

export default function withStyles<ClassKey extends string>(
  style: StyleRulesCallback<ClassKey> | StyleRules<ClassKey>,
  options?: WithStylesOptions<ClassKey>,
): {
  <P extends ConsistentWith<P, StyledComponentProps<ClassKey>>>(
    component: React.ComponentType<P & WithStyles<ClassKey>>,
  ): React.ComponentType<Overwrite<P, StyledComponentProps<ClassKey>>>;
};