import componentTest, {
  setupRenderingTest,
} from "discourse/tests/helpers/component-test";
import pretender from "discourse/tests/helpers/create-pretender";
import {
  count,
  createFile,
  exists,
} from "discourse/tests/helpers/qunit-helpers";
import hbs from "htmlbars-inline-precompile";
import { click, settled, waitFor } from "@ember/test-helpers";
import { module } from "qunit";
import { run } from "@ember/runloop";

const fakeUpload = {
  type: ".png",
  extension: "png",
  name: "myfile.png",
  short_path: "/images/avatar.png",
};

const mockUploadResponse = {
  extension: "jpeg",
  filesize: 126177,
  height: 800,
  human_filesize: "123 KB",
  id: 202,
  original_filename: "avatar.PNG.jpg",
  retain_hours: null,
  short_path: "/images/avatar.png",
  short_url: "upload://yoj8pf9DdIeHRRULyw7i57GAYdz.jpeg",
  thumbnail_height: 320,
  thumbnail_width: 690,
  url: "/images/avatar.png",
  width: 1920,
};

function setupUploadPretender() {
  pretender.post(
    "/uploads.json",
    () => {
      return [200, { "Content-Type": "application/json" }, mockUploadResponse];
    },
    500 // this delay is important to slow down the uploads a bit so we can click elements in the UI like the cancel button
  );
}

module("Discourse Chat | Component | chat-composer-uploads", function (hooks) {
  setupRenderingTest(hooks);

  componentTest(
    "loading uploads from an outside source (e.g. draft or editing message)",
    {
      template: hbs`{{chat-composer-uploads fileUploadElementId="chat-widget-uploader"}}`,

      async test(assert) {
        this.appEvents = this.container.lookup("service:appEvents");
        this.appEvents.trigger("chat-composer:load-uploads", [fakeUpload]);
        await settled();

        assert.strictEqual(count(".chat-composer-upload"), 1);
        assert.strictEqual(exists(".chat-composer-upload"), true);
      },
    }
  );

  componentTest("upload starts and completes", {
    template: hbs`{{chat-composer-uploads fileUploadElementId="chat-widget-uploader" onUploadChanged=onUploadChanged}}`,

    beforeEach() {
      setupUploadPretender();
      this.set("changedUploads", null);
      this.set("onUploadChanged", (uploads) => {
        this.set("changedUploads", uploads);
      });
    },

    async test(assert) {
      const done = assert.async();
      this.appEvents = this.container.lookup("service:appEvents");
      this.appEvents.on(
        "upload-mixin:chat-composer-uploader:upload-success",
        (fileName, upload) => {
          assert.strictEqual(fileName, "avatar.png");
          assert.deepEqual(upload, mockUploadResponse);
          done();
        }
      );

      this.appEvents.trigger(
        "upload-mixin:chat-composer-uploader:add-files",
        createFile("avatar.png")
      );

      await waitFor(".chat-composer-upload");
      assert.strictEqual(count(".chat-composer-upload"), 1);
    },
  });

  componentTest("removing a completed upload", {
    template: hbs`{{chat-composer-uploads fileUploadElementId="chat-widget-uploader" onUploadChanged=onUploadChanged}}`,

    beforeEach() {
      this.set("changedUploads", null);
      this.set("onUploadChanged", (uploads) => {
        this.set("changedUploads", uploads);
      });
    },

    async test(assert) {
      this.appEvents = this.container.lookup("service:appEvents");
      run(() =>
        this.appEvents.trigger("chat-composer:load-uploads", [fakeUpload])
      );
      assert.strictEqual(count(".chat-composer-upload"), 1);

      await click(".remove-upload");
      assert.strictEqual(count(".chat-composer-upload"), 0);
    },
  });

  componentTest("cancelling in progress upload", {
    template: hbs`{{chat-composer-uploads fileUploadElementId="chat-widget-uploader" onUploadChanged=onUploadChanged}}`,

    beforeEach() {
      setupUploadPretender();

      this.set("changedUploads", null);
      this.set("onUploadChanged", (uploads) => {
        this.set("changedUploads", uploads);
      });
    },

    async test(assert) {
      const image = createFile("avatar.png");
      const done = assert.async();
      this.appEvents = this.container.lookup("service:appEvents");

      this.appEvents.on(
        `upload-mixin:chat-composer-uploader:upload-cancelled`,
        (fileId) => {
          assert.strictEqual(
            fileId.includes("uppy-avatar/"),
            true,
            "upload was cancelled"
          );
          done();
        }
      );

      this.appEvents.trigger(
        "upload-mixin:chat-composer-uploader:add-files",
        image
      );

      await waitFor(".chat-composer-upload");
      assert.strictEqual(count(".chat-composer-upload"), 1);

      await click(".remove-upload");
      assert.strictEqual(count(".chat-composer-upload"), 0);
    },
  });
});