import type { QueryCtx, MutationCtx } from './_generated/server.js';

export async function requireOwner(ctx: QueryCtx | MutationCtx) {
	const identity = await ctx.auth.getUserIdentity();

	if (!identity) {
		throw new Error('Not authenticated');
	}

	return identity.tokenIdentifier;
}

export function slugifyTag(value: string) {
	return value
		.trim()
		.toLowerCase()
		.replace(/['"]/g, '')
		.replace(/[^a-z0-9]+/g, '-')
		.replace(/^-+|-+$/g, '')
		.slice(0, 48);
}

export function cleanTagName(value: string) {
	return value.trim().replace(/\s+/g, ' ').slice(0, 40);
}

export function markdownToPlainText(markdown: string) {
	return markdown
		.replace(/```[\s\S]*?```/g, ' ')
		.replace(/`([^`]+)`/g, '$1')
		.replace(/!\[[^\]]*]\([^)]*\)/g, ' ')
		.replace(/\[([^\]]+)]\([^)]*\)/g, '$1')
		.replace(/[#>*_~`|[\](){}-]/g, ' ')
		.replace(/\s+/g, ' ')
		.trim();
}

export function buildSearchText(args: {
	title: string;
	body: string;
	mood: string;
	tagNames: string[];
}) {
	return [args.title, markdownToPlainText(args.body), args.mood, ...args.tagNames]
		.filter(Boolean)
		.join(' ');
}

export function tagColor(slug: string) {
	const colors = ['amber', 'orange', 'rose', 'sky', 'teal', 'violet', 'lime', 'stone'];
	const total = [...slug].reduce((sum, char) => sum + char.charCodeAt(0), 0);

	return colors[total % colors.length];
}