Issue #4: Create EnumHandler and InputType

Signed-off-by: Matheus Horstmann <mch15@inf.ufpr.br>

.dockerignore

@@ -7,3 +7,4 @@ Dockerfile
 package-lock.json
 node_modules
 *.bak
+.editorconfig

.gitignore

@@ -15,3 +15,5 @@
 /dist
 *.bak
 .env
+docker-compose.yaml
+.editorconfig

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.0.2 - 05-02-2019
+### Added
+- EnunHandler to handle types of inputs #4 (Horstmann)
+
+
 ## 0.0.1 - 04-02-2019
 ### Added
 - This CHANGELOG file to hopefully serve as an evolving example of a  standardized open source project CHANGELOG.

package.json

 {
   "name": "form-creator-api",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "RESTful API used to manage and answer forms.",
   "main": "index.js",
   "scripts": {

src/utils/enumHandler.spec.ts

+/*
+ * form-creator-api. RESTful API to manage and answer forms.
+ * Copyright (C) 2019 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of form-creator-api.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import { expect } from "chai";
+import { EnumHandler, InputType } from "./enumHandler";
+
+describe("Enum Handler", () => {
+
+    it("should stringfy input ", () => {
+
+        const inputNone = EnumHandler.stringfyInputType(InputType.NONE);
+        const inputText = EnumHandler.stringfyInputType(InputType.TEXT);
+        expect(inputNone).to.be.equal("");
+        expect(inputText).to.be.equal("text");
+    });
+
+    it("should parse string to InputType", () => {
+        const inputText = EnumHandler.parseInputType("text");
+        const inputTextCapitalLetters = EnumHandler.parseInputType("TEXT");
+        const inputNone = EnumHandler.parseInputType("");
+        const inputFOOL = EnumHandler.parseInputType("fool");
+        expect(inputText).to.be.equal(InputType.TEXT);
+        expect(inputTextCapitalLetters).to.be.equal(InputType.TEXT);
+        expect(inputNone).to.be.equal(InputType.NONE);
+        expect(inputFOOL).to.be.equal(InputType.NONE);
+    });
+
+});

src/utils/enumHandler.ts

+/*
+ * form-creator-api. RESTful API to manage and answer forms.
+ * Copyright (C) 2019 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of form-creator-api.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+/**
+ * Available Input types
+ */
+export enum InputType {
+     /** Used as error code. No suitable input found. */
+     NONE,
+     /** Text type, when input is a text */
+     TEXT
+}
+
+/**
+ * Enum's handler. Manage parse through the project.
+ */
+
+export class EnumHandler {
+    /**
+     * Parse an enum(Input type) to string.
+     * @param a - Input type to be stringified.
+     */
+    public static stringfyInputType(a: InputType): string {
+        switch (a) {
+            case InputType.TEXT:
+                return "text";
+            default:
+                return  "";
+        }
+    }
+    /**
+     * Parse a string to enum(InputType).
+     * @param str - InputType in string format.
+     */
+    public static parseInputType(str: string): InputType {
+        str = str.toLocaleLowerCase();
+        switch (str) {
+            case "text":
+                return InputType.TEXT;
+            default:
+                return InputType.NONE;
+        }
+    }
+
+ }