import { config } from '$lib/server/api/common/config';
import env from '$lib/server/api/common/env';
import type { Context } from 'hono';
import { setCookie } from 'hono/cookie';
import type { CookieOptions } from 'hono/utils/cookie';
import { TimeSpan } from 'oslo';

export const cookieMaxAge = 60 * 60 * 24 * 30;
export const cookieExpiresMilliseconds = new TimeSpan(2, 'w').milliseconds();
export const cookieExpiresAt = new Date(Date.now() + cookieExpiresMilliseconds);
export const halfCookieExpiresMilliseconds = cookieExpiresMilliseconds / 2;
export const halfCookieExpiresAt = new Date(Date.now() + halfCookieExpiresMilliseconds);
export const cookieName = 'session';

export type SessionCookie = {
	name: string;
	value: string;
	attributes: CookieOptions;
};

export function createSessionTokenCookie(token: string, expiresAt: Date): SessionCookie {
	return {
		name: cookieName,
		value: token,
		attributes: {
			path: '/',
			maxAge: cookieMaxAge,
			domain: env.DOMAIN,
			sameSite: 'lax',
			secure: config.isProduction,
			httpOnly: true,
			expires: expiresAt,
		},
	};
}

export function createBlankSessionTokenCookie(): SessionCookie {
	return {
		name: cookieName,
		value: '',
		attributes: {
			path: '/',
			maxAge: 0,
			domain: env.DOMAIN,
			sameSite: 'lax',
			secure: config.isProduction,
			httpOnly: true,
			expires: new Date(0),
		},
	};
}

export function setSessionCookie(c: Context, sessionCookie: SessionCookie) {
	setCookie(c, sessionCookie.name, sessionCookie.value, {
		path: sessionCookie.attributes.path,
		maxAge: sessionCookie.attributes?.maxAge,
		domain: sessionCookie.attributes.domain,
		sameSite: sessionCookie.attributes.sameSite as undefined,
		secure: sessionCookie.attributes.secure,
		httpOnly: sessionCookie.attributes.httpOnly,
		expires: sessionCookie.attributes.expires,
	});
}