import { Controller, Get, UseGuards, HttpStatus, HttpException } from "@nestjs/common";
import { Throttle } from "@nestjs/throttler";
import { HealthService, ReadinessResult } from "./health.service";
import { OrchestratorThrottlerGuard } from "../../common/guards/throttler.guard";

/**
 * Health check controller for orchestrator service
 *
 * Rate limits:
 * - Health endpoints: 200 requests/minute (higher for monitoring)
 */
@Controller("health")
@UseGuards(OrchestratorThrottlerGuard)
export class HealthController {
  constructor(private readonly healthService: HealthService) {}

  @Get()
  @Throttle({ status: { limit: 200, ttl: 60000 } })
  check(): { status: string; uptime: number; timestamp: string } {
    return {
      status: "healthy",
      uptime: this.healthService.getUptime(),
      timestamp: new Date().toISOString(),
    };
  }

  @Get("ready")
  @Throttle({ status: { limit: 200, ttl: 60000 } })
  async ready(): Promise<ReadinessResult> {
    const result = await this.healthService.isReady();

    if (!result.ready) {
      throw new HttpException(result, HttpStatus.SERVICE_UNAVAILABLE);
    }

    return result;
  }
}