import { Database } from './db/database.js';
import { discordRouter } from './discord/router.js';
import { createCors, Router, IRequestStrict } from 'itty-router';
import { webRouter } from './web/router.js';

export interface Env {
	readonly BASE_URL: string;
	readonly CREDITS_URL: string;
	readonly DISCORD_APP_ID: string;
	readonly DISCORD_APP_SECRET: string;
	readonly DISCORD_PUBLIC_KEY: string;
	readonly DISCORD_DEV_GUILD_IDS: string;
	readonly DB: D1Database;
}

const { preflight, corsify } = createCors();
const discord = discordRouter('/discord')
const web = webRouter('/')

const router = Router<IRequestStrict, [env: Env, db: Database, ctx: ExecutionContext]>()
		.all('*', preflight)
		.all('/discord/*', discord.handle.bind(discord))
		.all('/*', web.handle.bind(web))
		.all('*', (_req, _env, _db, _ctx) => null);

// noinspection JSUnusedGlobalSymbols
export default {
	async fetch(req: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
		return router.handle(req, env, new Database(env.DB), ctx).then((result) => {
			if (result instanceof Response) {
				return result;
			} else if (typeof result === 'string') {
				const headers = new Headers()
				headers.set("Content-Type", "text/html")
				return new Response(result, { status: 200, statusText: 'OK', headers});
			} else if (typeof result === 'object' || Array.isArray(result)) {
				return Response.json(result, { status: 200, statusText: 'OK' });
			} else {
				return new Response('Not Found', { status: 404, statusText: 'Not Found' });
			}
		}).catch((reason) => {
			return new Response(`Failed: ${reason}`, { status: 500, statusText: 'Internal Server Error' });
		}).then((response) => {
			return corsify(response);
		});
	}
};