import tokens from '@atlaskit/tokens/token-names';

export const constructTokenFunctionCall: (
	token: string,
	fallback: string | ShadowDefinition,
) => string = (token: string, fallback: string | ShadowDefinition) => {
	if (Array.isArray(fallback)) {
		fallback = constructShadow(fallback);
	}

	return `token('${token}', '${fallback}')`;
};

export type ShadowDefinition = Array<{
	radius: number;
	offset: {
		x: number;
		y: number;
	};
	color: string;
	opacity: number;
}>;

const constructShadow = (shadowObject: ShadowDefinition) => {
	return shadowObject
		.map((shadow) => `${shadow.offset.x}px ${shadow.offset.y}px ${shadow.radius}px ${shadow.color}`)
		.join(', ');
};

type BooleanCallback<T> = (args: T) => boolean;

export const compose: (...fns: ((...any: any[]) => any)[]) => (x: any) => any =
	(...fns: ((...any: any[]) => any)[]) =>
	(x: any) =>
		fns.reduce((res, fn) => fn(res), x);
export const pick: <T extends any>(key: keyof T) => (obj: T) => T[keyof T] =
	<T extends any>(key: keyof T) =>
	(obj: T) =>
		obj[key];
export const isAccent: (str: string) => boolean = (str: string) => str.includes('accent');
export const isPressed: (str: string) => boolean = (str: string) => str.includes('pressed');
export const isHovered: (str: string) => boolean = (str: string) => str.includes('hovered');
export const not: <T extends any>(cb: BooleanCallback<T>) => (val: T) => boolean =
	<T extends any>(cb: BooleanCallback<T>) =>
	(val: T) =>
		!cb(val);
export const or: <T extends any>(...fns: BooleanCallback<T>[]) => (val: T) => boolean =
	<T extends any>(...fns: BooleanCallback<T>[]) =>
	(val: T) =>
		fns.some((fn) => fn(val));
export const capitalize: (str: string) => string = (str: string) =>
	str.charAt(0).toUpperCase() + str.slice(1);

export const generateTypeDefs: (typedTokens: string[], tokenNames?: string[]) => string = (
	typedTokens: string[],
	tokenNames?: string[],
) => {
	return typedTokens
		.map((t, i) => {
			return `'${Array.isArray(tokenNames) ? tokenNames[i] : t}': 'var(${tokens[t as keyof typeof tokens]})'`;
		})
		.join(';\n\t');
};