import { Module } from '@nestjs/common';
import { mkdirSync } from 'node:fs';
import { dirname } from 'node:path';
import { DatabaseSync } from 'node:sqlite';
import { McpController } from './mcp.controller.js';
import { MeshController } from './mesh.controller.js';
import { initMessagesTable, MeshService } from './mesh.service.js';

// SQLite-backed message history: file path from MESH_DB_PATH (default ./data/mesh-bot.db), parent dir created if missing.
function openMessageDb(): DatabaseSync {
  const path = process.env.MESH_DB_PATH ?? './data/mesh-bot.db';
  mkdirSync(dirname(path), { recursive: true });
  const db = new DatabaseSync(path);
  initMessagesTable(db);
  return db;
}

@Module({
  controllers: [MeshController, McpController],
  providers: [
    {
      provide: MeshService,
      useFactory: () => new MeshService(openMessageDb()),
    },
  ],
  exports: [MeshService],
})
export class MeshModule {}