type Abstractapi = {

	apiKey: string

}

export async function main(

	resource: Abstractapi,

	countryCode: string,

	filter?: {

		year?: number

		month?: number

		day?: number

	}

) {

	const queryParams = new URLSearchParams({

		api_key: resource.apiKey,

		country: countryCode

	})

	if (filter?.year) {

		queryParams.append('year', filter.year.toString())

	}

	if (filter?.month) {

		queryParams.append('month', filter.month.toString())

	}

	if (filter?.day) {

		queryParams.append('day', filter.day.toString())

	}

	const endpoint = `https://holidays.abstractapi.com/v1?${queryParams.toString()}`

	const response = await fetch(endpoint, {

		method: 'GET'

	})

	if (!response.ok) {

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

	}

	const data = await response.json()

	return data

}