Algorithms.ts

import { Algorithm } from "./Algorithm"
import { Tuple2 } from "./Tuple"

export type Algorithms = Record<string, Algorithm> & { current: Algorithm }

export namespace Algorithms {
	export function create(create: (keys: string[]) => Algorithm, current: string, ...secrets: string[]): Algorithms {
		const [first, ...remainder] = secrets.map(part =>
			Object.fromEntries(part.split(",").map(secret => secret.split(":", 2).map(item => item.trim())))
		)
		const result = Object.assign(
			{},
			...Object.entries(first)
				.map<Tuple2<string, string[]>>(([name, secret]) => [
					name,
					[secret, ...remainder.map(part => part[name]).filter(part => part)],
				])
				.map(([name, secrets]) => ({
					get [name]() {
						return Object.assign(create(secrets), { name })
					},
				}))
		)
		return { current: result[current], ...result }
	}
}