import { it } from "@effect/vitest";import * as Effect from "effect/Effect";import * as PubSub from "effect/PubSub";import * as Result from "effect/Result";import * as Stream from "effect/Stream";import { describe, expect } from "vite-plus/test"; import { ProviderInstanceId } from "@t3tools/contracts";import { createModelSelection } from "@t3tools/shared/model"; import type { ProviderInstance } from "../provider/ProviderDriver.ts";import * as ProviderInstanceRegistry from "../provider/Services/ProviderInstanceRegistry.ts";import * as TextGeneration from "./TextGeneration.ts"; const makeStubTextGeneration = (  overrides: Partial<TextGeneration.TextGeneration["Service"]>,): TextGeneration.TextGeneration["Service"] =>  TextGeneration.TextGeneration.of({    generateCommitMessage: () =>      Effect.die("generateCommitMessage stub not configured for this test"),    generatePrContent: () => Effect.die("generatePrContent stub not configured for this test"),    generateBranchName: () => Effect.die("generateBranchName stub not configured for this test"),    generateThreadTitle: () => Effect.die("generateThreadTitle stub not configured for this test"),    ...overrides,  }); const makeStubInstance = (  instanceId: ProviderInstanceId,  textGeneration: TextGeneration.TextGeneration["Service"],): ProviderInstance =>  ({    instanceId,    driverKind: instanceId as unknown as ProviderInstance["driverKind"],    continuationIdentity: {      driverKind: instanceId as unknown as ProviderInstance["driverKind"],      continuationKey: `${instanceId}:test`,    },    displayName: undefined,    enabled: true,    snapshot: {} as ProviderInstance["snapshot"],    adapter: {} as ProviderInstance["adapter"],    textGeneration,  }) satisfies ProviderInstance; const makeStubRegistry = (  instances: ReadonlyArray<ProviderInstance>,): ProviderInstanceRegistry.ProviderInstanceRegistry["Service"] => {  const byId = new Map(instances.map((instance) => [instance.instanceId, instance] as const));  return {    getInstance: (id) => Effect.succeed(byId.get(id)),    listInstances: Effect.succeed(instances),    listUnavailable: Effect.succeed([]),    streamChanges: Stream.empty,    // Tests never drive changes through this stub; acquire a throwaway    // subscription on an unused PubSub so the shape is satisfied.    subscribeChanges: Effect.flatMap(PubSub.unbounded<void>(), (pubsub) =>      PubSub.subscribe(pubsub),    ),  };}; describe("makeTextGenerationFromRegistry", () => {  it.effect("delegates to the matching instance's textGeneration closure", () =>    Effect.gen(function* () {      const personalId = ProviderInstanceId.make("codex_personal");      const personalCalls: string[] = [];      const personal = makeStubInstance(        personalId,        makeStubTextGeneration({          generateBranchName: (input) => {            personalCalls.push(input.message);            return Effect.succeed({ branch: "personal-branch" });          },        }),      );       const workId = ProviderInstanceId.make("codex_work");      const work = makeStubInstance(        workId,        makeStubTextGeneration({          generateBranchName: () => Effect.succeed({ branch: "work-branch" }),        }),      );       const tg = TextGeneration.makeTextGenerationFromRegistry(makeStubRegistry([personal, work]));       const result = yield* tg.generateBranchName({        cwd: process.cwd(),        message: "Refactor the routing layer",        modelSelection: createModelSelection(ProviderInstanceId.make("codex_personal"), "gpt-5"),      });       expect(result.branch).toBe("personal-branch");      expect(personalCalls).toEqual(["Refactor the routing layer"]);    }),  );   it.effect("fails with TextGenerationError when the instance is unknown", () =>    Effect.gen(function* () {      const tg = TextGeneration.makeTextGenerationFromRegistry(makeStubRegistry([]));       const result = yield* tg        .generateBranchName({          cwd: process.cwd(),          message: "anything",          modelSelection: createModelSelection(            ProviderInstanceId.make("missing_instance"),            "gpt-5",          ),        })        .pipe(Effect.result);       expect(Result.isFailure(result)).toBe(true);      if (Result.isFailure(result)) {        expect(result.failure._tag).toBe("TextGenerationError");        expect(result.failure.operation).toBe("generateBranchName");        expect(result.failure.detail).toContain("missing_instance");      }    }),  );});