type Contiguity = {

	token: string

}

export async function main(

	resource: Contiguity,

	body: {

		to: string

		message: string

	}

) {

	const endpoint = 'https://api.contiguity.co/send/text'

	// Validate phone number format

	const phoneRegex = /^\+[1-9]\d{0,14}$/

	if (!phoneRegex.test(body.to)) {

		throw new Error(

			'Invalid phone number format. Please use international format (e.g. +12065551234 or +923001234567).'

		)

	}

	const response = await fetch(endpoint, {

		method: 'POST',

		headers: {

			Authorization: `Token ${resource.token}`,

			'Content-Type': 'application/json'

		},

		body: JSON.stringify(body)

	})

	if (!response.ok) {

		const errorData = await response.json()

		throw new Error(`HTTP error! status: ${response.status}, message: ${JSON.stringify(errorData)}`)

	}

	const data = await response.json()

	return data

}