import { NEWSLETTER_API_TOKEN, NEWSLETTER_LIST_ID } from '$env/static/private'
import type { RequestHandler } from './$types'

export const POST = (async ({ request, fetch }) => {
    const data: { email: string } = await request.json()
    const { email } = data

    // No email
    if (!email) {
        return new Response(JSON.stringify({ message: 'NO_EMAIL' }), { status: 400 })
    }
    // Invalid email
    if (!email.match(/^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/)) {
        return new Response(JSON.stringify({ message: 'INVALID_EMAIL' }), { status: 400 })
    }

    // Newsletter API request
    const req = await fetch(`https://emailoctopus.com/api/1.6/lists/${NEWSLETTER_LIST_ID}/contacts`, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
            api_key: NEWSLETTER_API_TOKEN,
            email_address: email,
        })
    })
    const res = await req.json()
    console.log('server API response:', res)

    // Other error
    if (res && res.status !== 'PENDING') {
        return new Response(JSON.stringify({ message: res.error.code }), { status: 400 })
    }

    return new Response(JSON.stringify({
        success: true,
        message: res.status,
    }), {
        status: 200
    })
}) satisfies RequestHandler