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// Copyright 2022 Connor Logan. All rights reserved. MIT License.
import { assertEquals } from "./deps_test.ts";import { client } from "../client.ts";import type {  EndpointRequest,  EndpointResponse,  RouterRequest,} from "../client.ts";
Deno.test("client fetch", async t => {  // Setup  const oldFetch = self.fetch; // Put it back when you're done  const lastFetch = {    url: "",    init: undefined as RequestInit | undefined,  };  let returnResponse = new Response();  self.fetch = (url, init) => {    lastFetch.url = url as string;    lastFetch.init = init;    return new Promise(resolve => resolve(returnResponse));  };
  await t.step("A: bare endpoint", async () => {    type Endpoint = (req: EndpointRequest) => EndpointResponse<true>;    returnResponse = new Response("true", {      headers: { "content-type": "application/json" },    });    const response = await client<Endpoint>("http://localhost/base")({});    assertEquals(lastFetch, {      url: "http://localhost/base",      init: {        method: "GET",        headers: {},        body: null,      },    });    assertEquals(response, true);  });
  await t.step("B: endpoint with query", async () => {    type Endpoint = (      req: EndpointRequest<{ query: "b" }>,    ) => EndpointResponse<Error>;
    returnResponse = new Response(`{"$error":"b"}`, {      headers: { "content-type": "application/json" },    });    const response = await client<Endpoint>("http://localhost/base")({      query: {        query: "b",      },    });    assertEquals(lastFetch, {      url: "http://localhost/base?query=b",      init: {        method: "GET",        headers: {},        body: null,      },    });    assertEquals(response, new Error("b"));  });
  await t.step("C: endpoint with query and message", async () => {    type Endpoint = (req: EndpointRequest<      { query: "c" },      { message: Date }    >) => EndpointResponse<undefined>;
    const date = new Date();    returnResponse = new Response(null);    const response = await client<Endpoint>("http://localhost/base")({      query: { query: "c" },      message: { message: date },    });    assertEquals(lastFetch, {      url: "http://localhost/base?query=c",      init: {        method: "POST",        headers: { "content-type": "application/json" },        body: `{"message":{"$date":"${date.toJSON()}"}}`,      },    });    assertEquals(response, undefined);  });
  await t.step("D: router with two endpoints, one is nested", async () => {    type Router = (req: RouterRequest<{      one: (req: EndpointRequest) => EndpointResponse<"yes">;      two: (req: RouterRequest<{        three: (req: EndpointRequest<          { four: "five" },          { six: "seven" }        >) =>  EndpointResponse<"no">;      }>) => Response;    }>) => Response;
    returnResponse = new Response("yes");    const response1 = await client<Router>("http://localhost/base").one({});    assertEquals(lastFetch, {      url: "http://localhost/base/one",      init: {        method: "GET",        headers: {},        body: null,      },    });    assertEquals(response1, "yes");        returnResponse = new Response("no");    const response2 = await client<Router>("http://localhost/base")      .two.three({        query: { four: "five" },        message: { six: "seven" },      });    assertEquals(lastFetch, {      url: "http://localhost/base/two/three?four=five",      init: {        method: "POST",        headers: { "content-type": "application/json" },        body: `{"six":"seven"}`,      },    });    assertEquals(response2, "no");  });
  // All done, put the fetch back  self.fetch = oldFetch;});