import { Controller, Get, Post } from '@nestjs/common';
import { ClickHouseService } from './clickhouse.service';
import { ApiOperation, ApiResponse, ApiTags } from '@nestjs/swagger';
import { HttpService } from '@nestjs/axios';
import { firstValueFrom } from 'rxjs';
import { ConfigService } from '@nestjs/config';

@ApiTags('Clickhouse')
@Controller('clickhouse')
export class ClickHouseController {
    constructor(
        private readonly clickhouseService: ClickHouseService,
        private readonly httpService: HttpService,
        private readonly configService: ConfigService,
    ) { }

    @Get()
    @ApiOperation({ summary: 'Get metrics from ClickHouse' })
    @ApiResponse({
        status: 200,
        description: 'Metrics data',
        schema: {
            type: 'array',
            items: {
                type: 'object',
                properties: {
                    description: { type: 'string' },
                    device: { type: 'number' },
                    id: { type: 'string' },
                    name: { type: 'string' },
                    source: { type: 'string' },
                    status: { type: 'number' },
                    timestamp: { type: 'number' },
                    value: { type: 'string' },
                },
            },
        },
    })
    async getClckhouse() {
        return this.clickhouseService.getClckhouse();
    }

    @Post('send-to-ai')
    @ApiOperation({ summary: 'Send metrics to AI service' })
    @ApiResponse({
        status: 200,
        description: 'AI service response',
    })
    async sendToAI() {
        const metrics = await this.clickhouseService.getClckhouse();
        const aiServiceUrl = this.configService.get('AI_SERVICE_URL/api/metrics/rest');
        
        try {
            const response = await firstValueFrom(
                this.httpService.post(aiServiceUrl, metrics)
            );
            return response.data;
        } catch (error) {
            throw new Error(`Failed to send data to AI: ${error.message}`);
        }
    }
}