package nodes

import (
	"fmt"
	"strings"
)

type prometheusDiscovery struct {
	Labels  map[string]string `json:"Labels"`
	Targets []string          `json:"Targets"`
}

func GetPrometheusSD(p *NodesProcessor, ss string) []prometheusDiscovery {
	ns := p.List()

	pds := []prometheusDiscovery{
		{
			Labels:  make(map[string]string),
			Targets: []string{},
		},
	}

	for _, node := range ns {
		port, ok := node.KV["prometheus_port"]
		if !ok {
			port = "9999"
		}
		host, ok := node.KV["prometheus_host"]
		if !ok {
			host = node.HostName
		}

		v, ok := node.KV["prometheus_exporters"]
		if ok {
			services := strings.Split(v, ",")
			for _, service := range services {
				if ss == service {
					pds[0].Targets = append(pds[0].Targets, fmt.Sprintf("%s:%s", host, port))
				}
			}
		}
	}

	return pds
}