type Acumbamail = {

	authToken: string

}

export async function main(

	resource: Acumbamail,

	body: {

		list_id: number

		merge_fields: { [key: string]: string }

		double_optin?: boolean

		update_subscriber?: boolean

	}

) {

	const endpoint = 'https://acumbamail.com/api/1/addSubscriber/'

	const formData = new FormData()

	Object.entries(body.merge_fields).forEach(([key, value]) => {

		formData.append(`merge_fields[${key}]`, value)

	})

	formData.append('auth_token', resource.authToken)

	formData.append('list_id', body.list_id.toString())

	formData.append('double_optin', body.double_optin ? '1' : '0')

	formData.append('update_subscriber', body.update_subscriber ? '1' : '0')

	formData.append('complete_json', '1')

	const response = await fetch(endpoint, {

		method: 'POST',

		headers: {

			'Cache-Control': 'no-cache'

		},

		body: formData

	})

	if (!response.ok) {

		throw new Error(`HTTP error! status: ${response.status}`)

	}

	const data = await response.json()

	return data

}