feat: migrate from SQLite to PostgreSQL and update database handling

src/discord/interactionHandler.test.ts

@@ -1,4 +1,4 @@
-import { MessageFlags } from "discord.js";
+import { MessageFlags, PermissionFlagsBits } from "discord.js";
 import { describe, expect, test } from "bun:test";
 import { handleInteraction, type BoosterRoleCommandService, type ChatInputInteractionLike } from "./interactionHandler";
 
@@ -8,6 +8,7 @@ class FakeInteraction implements ChatInputInteractionLike {
   commandName = "booster-role";
   user = { id: "user" };
   guildId: string | null = "guild";
+  memberPermissions: { has(permission: bigint): boolean } | null = null;
   replies: Reply[] = [];
 
   constructor(private readonly subcommand: string, private readonly values: Record<string, unknown> = {}) {}
@@ -23,6 +24,7 @@ class FakeInteraction implements ChatInputInteractionLike {
   options = {
     getSubcommand: () => this.subcommand,
     getString: (name: string) => (this.values[name] as string | null) ?? null,
+    getUser: (name: string) => (this.values[name] as { id: string } | null) ?? null,
     getAttachment: (name: string) => (this.values[name] as { contentType: string | null; size: number; url: string } | null) ?? null
   };
 }
@@ -47,8 +49,8 @@ class FakeService implements BoosterRoleCommandService {
     this.calls.push("icon");
   }
 
-  async deleteRole(): Promise<void> {
-    this.calls.push("delete");
+  async deleteRole(input?: { userId: string }): Promise<void> {
+    this.calls.push(input?.userId ? `delete:${input.userId}` : "delete");
   }
 }
 
@@ -64,7 +66,7 @@ describe("handleInteraction", () => {
   });
 
   test("routes update subcommands and replies", async () => {
-    for (const subcommand of ["rename", "recolor", "icon", "delete"]) {
+    for (const subcommand of ["rename", "recolor", "icon"]) {
       const interaction = new FakeInteraction(subcommand, { name: "Test", color: "#AABBCC", image: { contentType: "image/png", size: 100, url: "https://cdn.discordapp.com/icon.png" } });
       const service = new FakeService();
 
@@ -75,6 +77,38 @@ describe("handleInteraction", () => {
     }
   });
 
+  test("routes own delete command", async () => {
+    const interaction = new FakeInteraction("delete");
+    const service = new FakeService();
+
+    await handleInteraction(interaction, service, { isBoosting: async () => true });
+
+    expect(service.calls).toEqual(["delete:user"]);
+    expect(interaction.replies[0]).toEqual({ content: "Booster role deleted.", flags: MessageFlags.Ephemeral });
+  });
+
+  test("routes admin delete command for target user", async () => {
+    const interaction = new FakeInteraction("admin-delete", { user: { id: "target-user" } });
+    interaction.memberPermissions = { has: (permission) => permission === PermissionFlagsBits.Administrator };
+    const service = new FakeService();
+
+    await handleInteraction(interaction, service, { isBoosting: async () => true });
+
+    expect(service.calls).toEqual(["delete:target-user"]);
+    expect(interaction.replies[0]).toEqual({ content: "Booster role deleted by admin.", flags: MessageFlags.Ephemeral });
+  });
+
+  test("rejects admin delete without Administrator permission", async () => {
+    const interaction = new FakeInteraction("admin-delete", { user: { id: "target-user" } });
+    interaction.memberPermissions = { has: () => false };
+    const service = new FakeService();
+
+    await handleInteraction(interaction, service, { isBoosting: async () => true });
+
+    expect(service.calls).toEqual([]);
+    expect(interaction.replies[0]).toEqual({ content: "Administrator permission is required", flags: MessageFlags.Ephemeral });
+  });
+
   test("turns service errors into private replies", async () => {
     const interaction = new FakeInteraction("claim", { name: "VIP" });
     const service = new FakeService();