import { Module } from "@nestjs/common";
import { log } from "@kokorone/shared";
import { PrismaModule } from "../prisma/prisma.module.js";
import { EmotionModule } from "../emotion/emotion.module.js";
import { RelationshipModule } from "../relationship/relationship.module.js";
import { MemoryModule } from "../memory/memory.module.js";
import { ScheduleModule } from "../schedule/schedule.module.js";
import { MockProvider } from "./mock-provider.service.js";
import { ClaudeProvider } from "./claude-provider.service.js";
import { LLM_PROVIDER } from "./llm-provider.js";
import { OutputFilterService } from "./output-filter.service.js";
import { FastChannelDetector } from "./fast-channel.service.js";
import { BehaviorReinforcementService } from "./behavior-reinforcement.service.js";
import { ContextAssemblerService } from "./context-assembler.service.js";
import { DialogueService } from "./dialogue.service.js";
import { DialogueController } from "./dialogue.controller.js";

// F-2 Provider 切換：LLM_PROVIDER=mock|claude 決定注入哪個實作，切換不動引擎任何一行。
// R-3：ClaudeProvider 已接上真實 API，這裡不再需要特別的「尚未實作」警告。
function llmProviderFactory(mock: MockProvider, claude: ClaudeProvider) {
  const providerName = process.env.LLM_PROVIDER ?? "mock";
  if (providerName === "claude") {
    log("啟動", "INF", `LLM_PROVIDER=claude，對話生成將呼叫真實 API（CLAUDE_BASE_URL=${process.env.CLAUDE_BASE_URL ?? "http://localhost:3000/api/v1"}）`);
    return claude;
  }
  return mock;
}

@Module({
  imports: [PrismaModule, EmotionModule, RelationshipModule, MemoryModule, ScheduleModule],
  controllers: [DialogueController],
  providers: [
    MockProvider,
    ClaudeProvider,
    { provide: LLM_PROVIDER, useFactory: llmProviderFactory, inject: [MockProvider, ClaudeProvider] },
    OutputFilterService,
    FastChannelDetector,
    BehaviorReinforcementService,
    ContextAssemblerService,
    DialogueService,
  ],
  exports: [DialogueService, BehaviorReinforcementService, LLM_PROVIDER],
})
export class LlmModule {}