import randomBytes from 'randombytes'
import sanitize from 'sanitize-filename'

// WARNING: do not import anything related to Electron; the code will not compile correctly.

// eslint-disable-next-line @typescript-eslint/no-explicit-any
export type AnyFunction = (...args: any) => any

/**
 * @returns `filename` with all invalid filename characters replaced.
 */
export function sanitizeFilename(filename: string): string {
	const newFilename = sanitize(filename, {
		replacement: ((invalidChar: string) => {
			switch (invalidChar) {
				case '<': return '❮'
				case '>': return '❯'
				case ':': return '꞉'
				case '"': return "'"
				case '/': return '／'
				case '\\': return '⧵'
				case '|': return '⏐'
				case '?': return '？'
				case '*': return '⁎'
				default: return '_'
			}
		}),
	})
	return (newFilename == '' ? randomBytes(5).toString('hex') : newFilename)
}

/**
 * @returns `text` converted to lower case.
 */
export function lower(text: string) {
	return text.toLowerCase()
}

/**
 * Converts `val` from the range (`fromStart`, `fromEnd`) to the range (`toStart`, `toEnd`).
 */
export function interpolate(val: number, fromStart: number, fromEnd: number, toStart: number, toEnd: number) {
	return ((val - fromStart) / (fromEnd - fromStart)) * (toEnd - toStart) + toStart
}

/**
 * @returns `objectList` split into multiple groups, where each group contains objects where every one of its values in `keys` matches.
 */
export function groupBy<T>(objectList: T[], ...keys: (keyof T)[]) {
	const results: T[][] = []
	for (const object of objectList) {
		const matchingGroup = results.find(result => keys.every(key => result[0][key] == object[key]))
		if (matchingGroup != undefined) {
			matchingGroup.push(object)
		} else {
			results.push([object])
		}
	}

	return results
}