package nodes

import (
	"encoding/json"
	"github.com/gogf/gf/encoding/gjson"
	"github.com/gogf/gf/os/grpool"
	"github.com/influxdata/influxdb-client-go/v2"
	"github.com/influxdata/influxdb-client-go/v2/api"
	"sparrow/pkg/protocol"
	"sparrow/pkg/ruleEngine"
	"sparrow/pkg/server"
	"time"
)

type InfluxDBConfig struct {
	URL           string            `json:"url"`
	Token         string            `json:"token"`
	Org           string            `json:"org"`
	Bucket        string            `json:"bucket"`
	Measurement   string            `json:"measurement"`
	Tags          map[string]string `json:"tags"`
	DataFieldName string            `json:"data_fields"` // 数据字段名称
}

type InfluxDBNode struct {
	config   *InfluxDBConfig
	writeApi api.WriteAPI
	pool     *grpool.Pool
}

func (i *InfluxDBNode) Init(ctx ruleEngine.Context, config string) error {
	if config != "" {
		c := new(InfluxDBConfig)
		err := json.Unmarshal([]byte(config), c)
		if err != nil {
			return err
		}
		i.config = c
	}
	i.pool = grpool.New(10)
	client := influxdb2.NewClient(i.config.URL, i.config.Token)
	i.writeApi = client.WriteAPI(i.config.Org, i.config.Bucket)
	return nil
}

func (i *InfluxDBNode) OnMessage(ctx ruleEngine.Context, message *protocol.Message) error {
	jsonData, err := gjson.DecodeToJson(message.Data)
	if err != nil {
		server.Log.Error(err)
		return err
	}
	point := influxdb2.NewPoint(i.config.Measurement, i.config.Tags, jsonData.GetMap(i.config.DataFieldName), time.Now())
	err = i.pool.Add(func() {
		i.writeApi.WritePoint(point)
	})
	if err != nil {
		server.Log.Error(err)
		return err
	}
	ctx.TellSuccess(message)
	return nil
}