import { json, error } from '@sveltejs/kit';
import type { RequestHandler } from './$types';
import { env } from '$env/dynamic/public';

// Main-page advertisement videos are wired into video/script1.ev by the same
// taobin_image service that handles menu images / promo catalogs.
const API_BASE = env.PUBLIC_POST_IMAGE;

export const POST: RequestHandler = async ({ request }) => {
	try {
		const formData = await request.formData();

		const uid = formData.get('uid') as string;
		const displayName = formData.get('displayName') as string;
		const email = formData.get('email') as string;
		const name = formData.get('name') as string;
		const country = (formData.get('country') as string) || 'tha';
		const start = formData.get('start') as string;
		// 'NONE' means open-ended (no end date).
		const end = (formData.get('end') as string) || 'NONE';
		const machineNumbers = (formData.get('machine_numbers') as string) || '';
		const brewingDuration = (formData.get('brewing_duration') as string) || '1';
		const video = formData.get('video') as File;
		const brewingVideo = formData.get('brewing_video') as File;
		const brewingTxt = formData.get('brewing_txt') as File;
		const brewingTxtEn = formData.get('brewing_txt_en') as File;

		if (
			!uid ||
			!displayName ||
			!email ||
			!name ||
			!start ||
			!video ||
			!brewingVideo ||
			!brewingTxt ||
			!brewingTxtEn
		) {
			throw error(400, 'Missing required fields');
		}

		const endpoint =
			`${API_BASE}/video/mainpage/${encodeURIComponent(uid)}` +
			`/${encodeURIComponent(displayName)}/${encodeURIComponent(email)}`;

		console.log('[Video MainPage Proxy] Endpoint:', endpoint, 'name:', name);

		const upstream = new FormData();
		upstream.append('name', name);
		upstream.append('country', country);
		upstream.append('start', start);
		upstream.append('end', end);
		upstream.append('machine_numbers', machineNumbers);
		upstream.append('brewing_duration', brewingDuration);
		upstream.append('video', video);
		upstream.append('brewing_video', brewingVideo);
		upstream.append('brewing_txt', brewingTxt);
		upstream.append('brewing_txt_en', brewingTxtEn);

		const response = await fetch(endpoint, {
			method: 'POST',
			body: upstream
		});

		if (!response.ok) {
			const errorData = await response.json().catch(() => ({ detail: response.statusText }));
			throw error(response.status, errorData.detail || 'Add main-page video failed');
		}

		return json(await response.json());
	} catch (err) {
		console.error('[Video MainPage Proxy] Error:', err);

		if (err && typeof err === 'object' && 'status' in err) {
			throw err;
		}

		throw error(500, err instanceof Error ? err.message : 'Internal server error');
	}
};