import { HttpRequest, HttpResponse, TBody } from './types.ts';
const JSON_TYPE_CHARSET = "application/json; charset=utf-8";
export default function respond(req: HttpRequest, res: HttpResponse) { res.return = []; res.locals = {}; res.opts = {}; res.header = function (key?: { [k: string]: any } | string, value?: any) { if (typeof key === 'object' && value === void 0) { if (key instanceof Headers) { this.opts.headers = key; } else { if (this.opts.headers) { for (const k in key) { this.opts.headers.set(k, key[k]); } } else { this.opts.headers = new Headers(key); } } return this; } if (typeof key === 'string' && value === void 0) { return (this.opts.headers ? this.opts.headers.get(key) : null) as HttpResponse & string; } if (typeof key === 'string' && value !== void 0) { this.opts.headers = this.opts.headers || new Headers(); this.opts.headers.set(key as string, value); return this; } return (this.opts.headers || new Headers()) as HttpResponse & Headers; }; res.type = (value: string) => res.header("Content-Type", value) as HttpResponse; res.status = function (code?: number) { if (code) { this.opts.status = code; return this; } return (this.opts.status || 200) as HttpResponse & number; }; req.pond = function (body?: TBody | { [k: string]: any } | null, opts = res.opts) { if (res.return.length) { let len = res.return.length, i = 0, ret; while (i < len) { if (res.return[i](body)) { ret = res.return[i](body); break; } i++; } if (ret) return this.respond({ body: ret, ...opts }); } if (typeof body === 'object') { if (body instanceof Uint8Array || typeof (body as Deno.Reader).read === 'function') { return this.respond({ body: body as TBody, ...opts }); } body = JSON.stringify(body); opts.headers = opts.headers || new Headers(); opts.headers.set("Content-Type", JSON_TYPE_CHARSET); } return this.respond({ body, ...opts }); }; req.getBaseUrl = function () { let obj = this.conn?.localAddr as any; if (obj) { let proto = this.isHttps ? 'https://' : 'http://'; let ip = obj.hostname || '127.0.0.1'; let port = (obj.port && obj.port === 80) ? '' : ':'+obj.port; return proto + ip + port; } return ''; }; res.body = (body?: TBody | { [k: string]: any } | null) => req.pond(body, res.opts);}