Company Pay Periods

//native

/**

 * Company Pay Periods

 * Array of pay periods associated with the company.

 */

export async function main(

	auth: RT.Paychex,

	companyId: string,

	status?: string | undefined,

	from?: string | undefined,

	to?: string | undefined

) {

	const accessToken = await getOAuthToken(auth, 'https://api.paychex.com/auth/oauth/v2/token')

	const url = new URL(`https://api.paychex.com/companies/${companyId}/payperiods`)

	for (const [k, v] of [

		['status', status],

		['from', from],

		['to', to]

	]) {

		if (v !== undefined && v !== '') {

			url.searchParams.append(k, v)

		}

	}

	const response = await fetch(url, {

		method: 'GET',

		headers: {

			Authorization: 'Bearer ' + accessToken

		},

		body: undefined

	})

	if (!response.ok) {

		const text = await response.text()

		throw new Error(`${response.status} ${text}`)

	}

	return await response.json()

}

async function getOAuthToken(auth: RT.Paychex, tokenUrl: string): Promise<string> {

	const params = new URLSearchParams({

		grant_type: 'client_credentials'

	})

	const response = await fetch(tokenUrl, {

		method: 'POST',

		headers: {

			Authorization: 'Basic ' + btoa(`${auth.client_id}:${auth.client_secret}`),

			'Content-Type': 'application/x-www-form-urlencoded'

		},

		body: params.toString()

	})

	if (!response.ok) {

		const text = await response.text()

		throw new Error(`OAuth token request failed: ${response.status} ${text}`)

	}

	const data = await response.json()

	return data.access_token

}