/** * RoutingTextGeneration – Dispatches text generation requests to either the * Codex CLI or Claude CLI implementation based on the provider in each * request input. * * When `modelSelection.provider` is `"claudeAgent"` the request is forwarded to * the Claude layer; for any other value (including the default `undefined`) it * falls through to the Codex layer. * * @module RoutingTextGeneration */import { Effect, Layer, Context } from "effect"; import {  TextGeneration,  type TextGenerationProvider,  type TextGenerationShape,} from "../Services/TextGeneration.ts";import { CodexTextGenerationLive } from "./CodexTextGeneration.ts";import { ClaudeTextGenerationLive } from "./ClaudeTextGeneration.ts"; // ---------------------------------------------------------------------------// Internal service tags so both concrete layers can coexist.// --------------------------------------------------------------------------- class CodexTextGen extends Context.Service<CodexTextGen, TextGenerationShape>()(  "t3/git/Layers/RoutingTextGeneration/CodexTextGen",) {} class ClaudeTextGen extends Context.Service<ClaudeTextGen, TextGenerationShape>()(  "t3/git/Layers/RoutingTextGeneration/ClaudeTextGen",) {} // ---------------------------------------------------------------------------// Routing implementation// --------------------------------------------------------------------------- const makeRoutingTextGeneration = Effect.gen(function* () {  const codex = yield* CodexTextGen;  const claude = yield* ClaudeTextGen;   const route = (provider?: TextGenerationProvider): TextGenerationShape =>    provider === "claudeAgent" ? claude : codex;   return {    generateCommitMessage: (input) =>      route(input.modelSelection.provider).generateCommitMessage(input),    generatePrContent: (input) => route(input.modelSelection.provider).generatePrContent(input),    generateBranchName: (input) => route(input.modelSelection.provider).generateBranchName(input),    generateThreadTitle: (input) => route(input.modelSelection.provider).generateThreadTitle(input),  } satisfies TextGenerationShape;}); const InternalCodexLayer = Layer.effect(  CodexTextGen,  Effect.gen(function* () {    const svc = yield* TextGeneration;    return svc;  }),).pipe(Layer.provide(CodexTextGenerationLive)); const InternalClaudeLayer = Layer.effect(  ClaudeTextGen,  Effect.gen(function* () {    const svc = yield* TextGeneration;    return svc;  }),).pipe(Layer.provide(ClaudeTextGenerationLive)); export const RoutingTextGenerationLive = Layer.effect(  TextGeneration,  makeRoutingTextGeneration,).pipe(Layer.provide(InternalCodexLayer), Layer.provide(InternalClaudeLayer));