fix: fallback empty arrays in view embed (#4)

### Explanation

The view embed was sending empty fields if the `tags` or `assignees` arrays were empty. Adding a fallback value provides a better UX.

### Issue

_No response_

### Attestations

- [x] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [x] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [x] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [ ] I have pinned the dependencies to a specific patch version.

### Style

- [x] I have run the linter and resolved any errors.
- [x] My pull request uses an appropriate title, matching the conventional commit standards.
- [x] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [x] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [x] All new and existing tests pass locally with my changes.
- [x] Code coverage remains at or above the configured threshold.

### Documentation

_No response_

### Versioning

Patch - My pull request introduces bug fixes ONLY.

Reviewed-on: https://codeberg.org/nhcarrigan/rig-task-bot/pulls/4
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/commands/view.ts

@@ -20,6 +20,7 @@ export const view: Command = {
         setMinValue(1).
         setRequired(true);
     }),
+  // eslint-disable-next-line max-lines-per-function
   run: async(bot, interaction) => {
     try {
       await interaction.deferReply({ ephemeral: true });
@@ -28,34 +29,66 @@ export const view: Command = {
         where: { numericalId },
       });
       if (!task) {
-        await interaction.editReply({ content: `Task ${String(numericalId)} not found.` });
+        await interaction.editReply({
+          content: `Task ${String(numericalId)} not found.`,
+        });
         return;
       }
       if (task.deleted) {
-        await interaction.editReply({ content: `Task ${String(numericalId)} has been deleted.` });
+        await interaction.editReply({
+          content: `Task ${String(numericalId)} has been deleted.`,
+        });
         return;
       }
-      await interaction.editReply({ embeds: [
-        {
-          description: task.description,
-          fields:      [
-            { inline: true, name: "Priority", value: task.priority },
-            { inline: true, name:   "Completed", value:  task.completed
-              ? "Yes"
-              : "No" },
-            { name: "Tag", value: task.tags.join(", ") },
-            { name:  "Assignee", value: task.assignees.map((id) => {
-              return `<@${id}>`;
-            }).join(", ") },
-
-          ],
-          title: `Task ${String(task.numericalId)}`,
-        },
-      ] });
+      await interaction.editReply({
+        embeds: [
+          {
+            description: task.description,
+            fields:      [
+              { inline: true, name: "Priority", value: task.priority },
+              {
+                inline: true,
+                name:   "Completed",
+                value:  task.completed
+                  ? "Yes"
+                  : "No",
+              },
+              {
+                inline: true,
+                name:   "Due Date",
+                value:  task.dueAt.toLocaleDateString("en-US"),
+              },
+              {
+                name:  "Tag",
+                value: task.tags.length > 0
+                  ? task.tags.join(", ")
+                  : "No tags.",
+              },
+              {
+                name: "Assignee",
+                value:
+                  task.assignees.length > 0
+                    ? task.assignees.
+                      map((id) => {
+                        return `<@${id}>`;
+                      }).
+                      join(", ")
+                    : "No assignees.",
+              },
+            ],
+            title: `Task ${String(task.numericalId)}`,
+          },
+        ],
+      });
     } catch (error) {
-      await errorHandler(bot, "view command", error, interaction.replied
-        ? interaction.editReply.bind(interaction)
-        : interaction.reply.bind(interaction));
+      await errorHandler(
+        bot,
+        "view command",
+        error,
+        interaction.replied
+          ? interaction.editReply.bind(interaction)
+          : interaction.reply.bind(interaction),
+      );
     }
   },
 };

test/commands/view.spec.ts

@@ -103,6 +103,11 @@ describe("view command", () => {
           fields:      [
             { inline: true, name: "Priority", value: "critical" },
             { inline: true, name: "Completed", value: "No" },
+            {
+              inline: true,
+              name:   "Due Date",
+              value:  new Date("2021-10-10").toLocaleDateString("en-US"),
+            },
             { name: "Tag", value: "discord" },
             { name: "Assignee", value: "<@123>" },
           ],
@@ -112,6 +117,67 @@ describe("view command", () => {
     });
   });
 
+  it("should execute correctly with fallback values", async() => {
+    expect.assertions(3);
+    const mockBot = {
+      database: {
+        tasks: {
+          findUnique: vi.fn().mockReturnValue({
+            assignees:   [ ],
+            completed:   false,
+            deleted:     false,
+            description: "Task 1 description",
+            dueAt:       new Date("2021-10-10"),
+            numericalId: 1,
+            priority:    "critical",
+            tags:        [ ],
+            title:       "Task 1",
+          }),
+        },
+      },
+    } as never;
+    const mockInteraction = {
+      deferReply: vi.fn(),
+      editReply:  vi.fn(),
+      options:    { getInteger: vi.fn().mockReturnValue(1) },
+    } as never;
+    await view.run(mockBot, mockInteraction);
+    expect(
+      mockInteraction.deferReply,
+      "should defer the reply",
+    ).toHaveBeenCalledWith({ ephemeral: true });
+    expect(
+      mockBot.database.tasks.findUnique,
+      "should query database",
+    ).toHaveBeenCalledWith({
+      where: {
+        numericalId: 1,
+      },
+    });
+    expect(
+      mockInteraction.editReply,
+      "should call editReply",
+    ).toHaveBeenCalledWith({
+      embeds: [
+        {
+          description: "Task 1 description",
+          fields:      [
+            { inline: true, name: "Priority", value: "critical" },
+            { inline: true, name: "Completed", value: "No" },
+            {
+              inline: true,
+              name:   "Due Date",
+              value:  new Date("2021-10-10").toLocaleDateString("en-US"),
+            },
+            { name: "Tag", value: "No tags." },
+            { name: "Assignee", value: "No assignees." },
+          ],
+          title: "Task 1",
+        },
+      ],
+    });
+  });
+
   it("should execute correctly with a completed task", async() => {
     expect.assertions(3);
     const mockBot = {
@@ -159,6 +225,11 @@ describe("view command", () => {
           fields:      [
             { inline: true, name: "Priority", value: "critical" },
             { inline: true, name: "Completed", value: "Yes" },
+            {
+              inline: true,
+              name:   "Due Date",
+              value:  new Date("2021-10-10").toLocaleDateString("en-US"),
+            },
             { name: "Tag", value: "discord" },
             { name: "Assignee", value: "<@123>" },
           ],