import { json } from '@sveltejs/kit';
import type { RequestHandler } from './$types';
import { requireAuth } from '$lib/server/middleware/authenticate.js';
import * as appService from '$lib/server/services/appService.js';
import { success, error } from '$lib/server/utils/response.js';
import { z } from 'zod';

const quickAddSchema = z.object({
	url: z
		.string()
		.url('Invalid URL')
		.refine(
			(u) => u.startsWith('http://') || u.startsWith('https://'),
			'URL must use http or https protocol'
		),
	name: z.string().min(1, 'Name is required').max(200),
	description: z.string().max(1000).optional()
});

/**
 * POST /api/apps/quick-add — Quick-add an app with sensible defaults.
 * Accepts { url, name, description? }, creates app with healthcheck enabled
 * and attempts to auto-detect a favicon icon from the URL's domain.
 */
export const POST: RequestHandler = async (event) => {
	const user = requireAuth(event);

	let body: unknown;
	try {
		body = await event.request.json();
	} catch {
		return json(error('Invalid JSON body'), { status: 400 });
	}

	const parsed = quickAddSchema.safeParse(body);
	if (!parsed.success) {
		const messages = parsed.error.errors.map((e) => e.message).join(', ');
		return json(error(messages), { status: 400 });
	}

	const { url, name, description } = parsed.data;

	// Attempt to derive a favicon URL from the domain
	let faviconUrl: string | undefined;
	try {
		const parsedUrl = new URL(url);
		faviconUrl = `${parsedUrl.origin}/favicon.ico`;
	} catch {
		// URL parsing failed — skip icon detection
	}

	try {
		const app = await appService.create({
			name,
			url,
			description,
			icon: faviconUrl,
			iconType: faviconUrl ? 'url' : 'lucide',
			healthcheckEnabled: true,
			healthcheckInterval: 300,
			healthcheckMethod: 'GET',
			healthcheckExpectedStatus: 200,
			healthcheckTimeout: 5000,
			createdById: user.id
		});
		return json(success(app), { status: 201 });
	} catch (err) {
		const message = err instanceof Error ? err.message : 'Failed to create app';
		return json(error(message), { status: 500 });
	}
};