import * as Context from "effect/Context";import * as Effect from "effect/Effect";import * as Layer from "effect/Layer";import type { ChatAttachment, ModelSelection, ProviderInstanceId } from "@t3tools/contracts";import { TextGenerationError } from "@t3tools/contracts"; import * as ProviderInstanceRegistry from "../provider/Services/ProviderInstanceRegistry.ts";import type { ProviderInstance } from "../provider/ProviderDriver.ts";import type { TextGenerationPolicy } from "./TextGenerationPolicy.ts"; export type TextGenerationProvider = "codex" | "claudeAgent" | "cursor" | "grok" | "opencode"; export interface CommitMessageGenerationInput {  cwd: string;  branch: string | null;  stagedSummary: string;  stagedPatch: string;  /** When true, the model also returns a semantic branch name for the change. */  includeBranch?: boolean;  policy?: TextGenerationPolicy | undefined;  /** What model and provider to use for generation. */  modelSelection: ModelSelection;} export interface CommitMessageGenerationResult {  subject: string;  body: string;  /** Only present when `includeBranch` was set on the input. */  branch?: string | undefined;} export interface PrContentGenerationInput {  cwd: string;  baseBranch: string;  headBranch: string;  commitSummary: string;  diffSummary: string;  diffPatch: string;  changeRequestTemplate?: string | undefined;  policy?: TextGenerationPolicy | undefined;  /** What model and provider to use for generation. */  modelSelection: ModelSelection;} export interface PrContentGenerationResult {  title: string;  body: string;} export interface BranchNameGenerationInput {  cwd: string;  message: string;  attachments?: ReadonlyArray<ChatAttachment> | undefined;  /** What model and provider to use for generation. */  modelSelection: ModelSelection;} export interface BranchNameGenerationResult {  branch: string;} export interface ThreadTitleGenerationInput {  cwd: string;  message: string;  /** Present when replacing an existing title from the current thread history. */  previousTitle?: string | undefined;  attachments?: ReadonlyArray<ChatAttachment> | undefined;  /** What model and provider to use for generation. */  modelSelection: ModelSelection;} export interface ThreadTitleGenerationResult {  title: string;} export interface TextGenerationService {  generateCommitMessage(    input: CommitMessageGenerationInput,  ): Promise<CommitMessageGenerationResult>;  generatePrContent(input: PrContentGenerationInput): Promise<PrContentGenerationResult>;  generateBranchName(input: BranchNameGenerationInput): Promise<BranchNameGenerationResult>;  generateThreadTitle(input: ThreadTitleGenerationInput): Promise<ThreadTitleGenerationResult>;} /** * TextGeneration - Service tag for commit and change request text generation. */export class TextGeneration extends Context.Service<  TextGeneration,  {    /**     * Generate a commit message from staged change context.     */    readonly generateCommitMessage: (      input: CommitMessageGenerationInput,    ) => Effect.Effect<CommitMessageGenerationResult, TextGenerationError>;     /**     * Generate change request title/body from branch and diff context.     */    readonly generatePrContent: (      input: PrContentGenerationInput,    ) => Effect.Effect<PrContentGenerationResult, TextGenerationError>;     /**     * Generate a concise branch name from a user message.     */    readonly generateBranchName: (      input: BranchNameGenerationInput,    ) => Effect.Effect<BranchNameGenerationResult, TextGenerationError>;     /** Generate a concise thread title from a first message or thread history. */    readonly generateThreadTitle: (      input: ThreadTitleGenerationInput,    ) => Effect.Effect<ThreadTitleGenerationResult, TextGenerationError>;  }>()("t3/textGeneration/TextGeneration") {} /** @deprecated Use `TextGeneration["Service"]`. */export type TextGenerationShape = TextGeneration["Service"]; type TextGenerationOp =  | "generateCommitMessage"  | "generatePrContent"  | "generateBranchName"  | "generateThreadTitle"; const resolveInstance = (  registry: ProviderInstanceRegistry.ProviderInstanceRegistry["Service"],  operation: TextGenerationOp,  instanceId: ProviderInstanceId,): Effect.Effect<ProviderInstance["textGeneration"], TextGenerationError> =>  registry.getInstance(instanceId).pipe(    Effect.flatMap((instance) =>      instance        ? Effect.succeed(instance.textGeneration)        : Effect.fail(            new TextGenerationError({              operation,              detail: `No provider instance registered for id '${instanceId}'.`,            }),          ),    ),  ); export const makeTextGenerationFromRegistry = (  registry: ProviderInstanceRegistry.ProviderInstanceRegistry["Service"],): TextGeneration["Service"] =>  TextGeneration.of({    generateCommitMessage: (input) =>      resolveInstance(registry, "generateCommitMessage", input.modelSelection.instanceId).pipe(        Effect.flatMap((textGeneration) => textGeneration.generateCommitMessage(input)),      ),    generatePrContent: (input) =>      resolveInstance(registry, "generatePrContent", input.modelSelection.instanceId).pipe(        Effect.flatMap((textGeneration) => textGeneration.generatePrContent(input)),      ),    generateBranchName: (input) =>      resolveInstance(registry, "generateBranchName", input.modelSelection.instanceId).pipe(        Effect.flatMap((textGeneration) => textGeneration.generateBranchName(input)),      ),    generateThreadTitle: (input) =>      resolveInstance(registry, "generateThreadTitle", input.modelSelection.instanceId).pipe(        Effect.flatMap((textGeneration) => textGeneration.generateThreadTitle(input)),      ),  }); export const make = Effect.gen(function* () {  const registry = yield* ProviderInstanceRegistry.ProviderInstanceRegistry;  return makeTextGenerationFromRegistry(registry);}); export const layer = Layer.effect(TextGeneration, make);