handler.ts

import { defineHandler, UttpResponse } from 'uttp'
import { User, userSchema } from './index.js'

type MaybePromise<T> = T | Promise<T>

export interface HandlerOptions {
	handleUser(user: User): MaybePromise<UttpResponse['body']>
}

export const handler = defineHandler((helpers, options: HandlerOptions) => {
	return {
		async handleRequest(request) {
			const body = await helpers.parseBodyAsString(request.rawRequest)
			if (!body) return { status: 400, body: 'must have body' }

			try {
				const user = userSchema.parse(JSON.parse(body))
				const responseBody = await options.handleUser(user)
				return { status: 200, body: responseBody }
			} catch (error) {
				const message = error instanceof Error ? error.message : undefined

				return { status: 400, body: message }
			}
		},
		adapterOptions: {},
	}
})