Command to allow the user to buy more effects (#424)

# Description

- Create a command to generate an embed for the user to be able to buy more effects
- This embed will contain the details about the effect as well as 2 buttons; Confirm and Cancel
- The confirm button will call the button event to:
    - Remove the currency from the user
    - Give the user the effect to their inventory
- The cancel button will just disable the buttons, so the user can't accidentally use it if they don't want to.

#381

## Type of change

Please delete options that are not relevant.

- [x] New feature (non-breaking change which adds functionality)

# How Has This Been Tested?

- Have created unit tests and tested locally

# Checklist

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that provde my fix is effective or that my feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream modules

Reviewed-on: #424
Reviewed-by: VylpesTester <tester@vylpes.com>
Co-authored-by: Ethan Lane <ethan@vylpes.com>
Co-committed-by: Ethan Lane <ethan@vylpes.com>

tests/commands/effects.test.ts

@@ -0,0 +1,105 @@
+import Effects from "../../src/commands/effects";
+import List from "../../src/commands/effects/List";
+import Use from "../../src/commands/effects/Use";
+import Buy from "../../src/commands/effects/Buy";
+import AppLogger from "../../src/client/appLogger";
+import GenerateCommandInteractionMock from "../__functions__/discord.js/GenerateCommandInteractionMock";
+import { CommandInteraction } from "discord.js";
+
+jest.mock("../../src/commands/effects/List");
+jest.mock("../../src/commands/effects/Use");
+jest.mock("../../src/commands/effects/Buy");
+jest.mock("../../src/client/appLogger");
+
+beforeEach(() => {
+    jest.resetAllMocks();
+});
+
+test("EXPECT CommandBuilder to be defined", async () => {
+    // Act
+    const effects = new Effects();
+
+    // Assert
+    expect(effects.CommandBuilder).toMatchSnapshot();
+});
+
+describe("execute", () => {
+    test("GIVEN interaction subcommand is list, EXPECT buy function called", async () => {
+        // Arrange
+        const interaction = GenerateCommandInteractionMock({
+            subcommand: "list",
+        });
+
+        // Act
+        const effects = new Effects();
+        await effects.execute(interaction as unknown as CommandInteraction);
+
+        // Assert
+        expect(List).toHaveBeenCalledTimes(1);
+        expect(List).toHaveBeenCalledWith(interaction);
+
+        expect(Use).not.toHaveBeenCalled();
+        expect(Buy).not.toHaveBeenCalled();
+
+        expect(AppLogger.LogError).not.toHaveBeenCalled();
+    });
+
+    test("GIVEN interaction subcommand is use, EXPECT buy function called", async () => {
+        // Arrange
+        const interaction = GenerateCommandInteractionMock({
+            subcommand: "use",
+        });
+
+        // Act
+        const effects = new Effects();
+        await effects.execute(interaction as unknown as CommandInteraction);
+
+        // Assert
+        expect(Use).toHaveBeenCalledTimes(1);
+        expect(Use).toHaveBeenCalledWith(interaction);
+
+        expect(List).not.toHaveBeenCalled();
+        expect(Buy).not.toHaveBeenCalled();
+
+        expect(AppLogger.LogError).not.toHaveBeenCalled();
+    });
+
+    test("GIVEN interaction subcommand is buy, EXPECT buy function called", async () => {
+        // Arrange
+        const interaction = GenerateCommandInteractionMock({
+            subcommand: "buy",
+        });
+
+        // Act
+        const effects = new Effects();
+        await effects.execute(interaction as unknown as CommandInteraction);
+
+        // Assert
+        expect(Buy).toHaveBeenCalledTimes(1);
+        expect(Buy).toHaveBeenCalledWith(interaction);
+
+        expect(List).not.toHaveBeenCalled();
+        expect(Use).not.toHaveBeenCalled();
+
+        expect(AppLogger.LogError).not.toHaveBeenCalled();
+    });
+
+    test("GIVEN interaction subcommand is invalid, EXPECT error logged", async () => {
+        // Arrange
+        const interaction = GenerateCommandInteractionMock({
+            subcommand: "invalid",
+        });
+
+        // Act
+        const effects = new Effects();
+        await effects.execute(interaction as unknown as CommandInteraction);
+
+        // Assert
+        expect(AppLogger.LogError).toHaveBeenCalledTimes(1);
+        expect(AppLogger.LogError).toHaveBeenCalledWith("Commands/Effects", "Invalid subcommand: invalid");
+
+        expect(List).not.toHaveBeenCalled();
+        expect(Use).not.toHaveBeenCalled();
+        expect(Buy).not.toHaveBeenCalled();
+    });
+});