Plugins: auto-select exclusive slots

src/plugins/slots.test.ts

@@ -0,0 +1,96 @@
+import { describe, expect, it } from "vitest";
+
+import type { ClawdbotConfig } from "../config/config.js";
+import { applyExclusiveSlotSelection } from "./slots.js";
+
+describe("applyExclusiveSlotSelection", () => {
+  it("selects the slot and disables other entries for the same kind", () => {
+    const config: ClawdbotConfig = {
+      plugins: {
+        slots: { memory: "memory-core" },
+        entries: {
+          "memory-core": { enabled: true },
+          memory: { enabled: true },
+        },
+      },
+    };
+
+    const result = applyExclusiveSlotSelection({
+      config,
+      selectedId: "memory",
+      selectedKind: "memory",
+      registry: {
+        plugins: [
+          { id: "memory-core", kind: "memory" },
+          { id: "memory", kind: "memory" },
+        ],
+      },
+    });
+
+    expect(result.changed).toBe(true);
+    expect(result.config.plugins?.slots?.memory).toBe("memory");
+    expect(result.config.plugins?.entries?.["memory-core"]?.enabled).toBe(false);
+    expect(result.warnings).toContain(
+      'Exclusive slot "memory" switched from "memory-core" to "memory".',
+    );
+    expect(result.warnings).toContain(
+      'Disabled other "memory" slot plugins: memory-core.',
+    );
+  });
+
+  it("does nothing when the slot already matches", () => {
+    const config: ClawdbotConfig = {
+      plugins: {
+        slots: { memory: "memory" },
+        entries: {
+          memory: { enabled: true },
+        },
+      },
+    };
+
+    const result = applyExclusiveSlotSelection({
+      config,
+      selectedId: "memory",
+      selectedKind: "memory",
+      registry: { plugins: [{ id: "memory", kind: "memory" }] },
+    });
+
+    expect(result.changed).toBe(false);
+    expect(result.warnings).toHaveLength(0);
+    expect(result.config).toBe(config);
+  });
+
+  it("warns when the slot falls back to a default", () => {
+    const config: ClawdbotConfig = {
+      plugins: {
+        entries: {
+          memory: { enabled: true },
+        },
+      },
+    };
+
+    const result = applyExclusiveSlotSelection({
+      config,
+      selectedId: "memory",
+      selectedKind: "memory",
+      registry: { plugins: [{ id: "memory", kind: "memory" }] },
+    });
+
+    expect(result.changed).toBe(true);
+    expect(result.warnings).toContain(
+      'Exclusive slot "memory" switched from "memory-core" to "memory".',
+    );
+  });
+
+  it("skips changes when no exclusive slot applies", () => {
+    const config: ClawdbotConfig = {};
+    const result = applyExclusiveSlotSelection({
+      config,
+      selectedId: "custom",
+    });
+
+    expect(result.changed).toBe(false);
+    expect(result.warnings).toHaveLength(0);
+    expect(result.config).toBe(config);
+  });
+});