import HoganJsUtils from "../hoganjs-utils";
import { CSSLineClass } from "../render-utils";

describe("HoganJsUtils", () => {
  describe("render", () => {
    const emptyDiffHtml =
      "<tr>\n" +
      '    <td class="d2h-info">\n' +
      '        <div class="d2h-code-line d2h-info">\n' +
      "            File without changes\n" +
      "        </div>\n" +
      "    </td>\n" +
      "</tr>";

    it("should render view", () => {
      const hoganJsUtils = new HoganJsUtils({});
      const result = hoganJsUtils.render("generic", "empty-diff", {
        contentClass: "d2h-code-line",
        CSSLineClass: CSSLineClass
      });
      expect(result).toEqual(emptyDiffHtml);
    });

    it("should render view without cache", () => {
      const hoganJsUtils = new HoganJsUtils({});
      const result = hoganJsUtils.render("generic", "empty-diff", {
        contentClass: "d2h-code-line",
        CSSLineClass: CSSLineClass
      });
      expect(result).toEqual(emptyDiffHtml);
    });

    it("should throw exception if template is missing", () => {
      const hoganJsUtils = new HoganJsUtils({});
      expect(() => hoganJsUtils.render("generic", "missing-template", {})).toThrow(Error);
    });

    it("should allow templates to be overridden with compiled templates", () => {
      const emptyDiffTemplate = HoganJsUtils.compile("<p>{{myName}}</p>");
      const hoganJsUtils = new HoganJsUtils({ compiledTemplates: { "generic-empty-diff": emptyDiffTemplate } });

      const result = hoganJsUtils.render("generic", "empty-diff", { myName: "Rodrigo Fernandes" });
      expect(result).toEqual("<p>Rodrigo Fernandes</p>");
    });

    it("should allow templates to be overridden with uncompiled templates", () => {
      const emptyDiffTemplate = "<p>{{myName}}</p>";
      const hoganJsUtils = new HoganJsUtils({ rawTemplates: { "generic-empty-diff": emptyDiffTemplate } });

      const result = hoganJsUtils.render("generic", "empty-diff", { myName: "Rodrigo Fernandes" });
      expect(result).toEqual("<p>Rodrigo Fernandes</p>");
    });

    it("should allow templates to be overridden giving priority to raw templates", () => {
      const emptyDiffTemplate = HoganJsUtils.compile("<p>Not used!</p>");
      const emptyDiffTemplateUncompiled = "<p>{{myName}}</p>";
      const hoganJsUtils = new HoganJsUtils({
        compiledTemplates: { "generic-empty-diff": emptyDiffTemplate },
        rawTemplates: { "generic-empty-diff": emptyDiffTemplateUncompiled }
      });

      const result = hoganJsUtils.render("generic", "empty-diff", { myName: "Rodrigo Fernandes" });
      expect(result).toEqual("<p>Rodrigo Fernandes</p>");
    });
  });
});