Feat: es modules (#139)

* All file imports change from commonjs to es-module

* Improved plex error responses back from api

* Converted viewHistory to es module

* Es-module requires file extension, updated all imports

* Fix esmodule not having __dirname defined in scope

* Replace dynamic-require with fs readFileSync

* Short message service module function is exported as default

* Resolved lint issues & ignore import/extension rule until typescript

* All tests file imports changed from commonjs to es-module

* Import json fixtures with new helper

src/config/configuration.js

@@ -1,13 +1,17 @@
-const path = require("path");
-const Field = require("./field");
+import fs from "fs";
+import path from "path";
+import { fileURLToPath } from "url";
+
+import Field from "./field.js";
 
 let instance = null;
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 class Config {
   constructor() {
     this.location = Config.determineLocation();
-    // eslint-disable-next-line import/no-dynamic-require, global-require
-    this.fields = require(`${this.location}`);
+    this.fields = Config.readFileContents(this.location);
   }
 
   static getInstance() {
@@ -21,6 +25,17 @@ class Config {
     return path.join(__dirname, "..", "..", process.env.SEASONED_CONFIG);
   }
 
+  static readFileContents(location) {
+    let content = {};
+    try {
+      content = JSON.parse(fs.readFileSync(location, { encoding: "utf-8" }));
+    } catch (err) {
+      console.error(`Error loading configuration file at path: ${location}`);
+    }
+
+    return content;
+  }
+
   get(section, option) {
     if (
       this.fields[section] === undefined ||
@@ -45,4 +60,4 @@ class Config {
   }
 }
 
-module.exports = Config;
+export default Config;

src/config/environmentVariables.js

@@ -12,4 +12,4 @@ class EnvironmentVariables {
   }
 }
 
-module.exports = EnvironmentVariables;
+export default EnvironmentVariables;

src/config/field.js

@@ -1,5 +1,5 @@
-const Filters = require("./filters");
-const EnvironmentVariables = require("./environmentVariables");
+import Filters from "./filters.js";
+import EnvironmentVariables from "./environmentVariables.js";
 
 class Field {
   constructor(rawValue, environmentVariables) {
@@ -50,4 +50,4 @@ class Field {
   }
 }
 
-module.exports = Field;
+export default Field;

src/config/filters.js

@@ -31,4 +31,4 @@ class Filters {
   }
 }
 
-module.exports = Filters;
+export default Filters;