package heliumapi

import (
	"encoding/json"
	"fmt"
)

type BlockchainStats struct {
	Data struct {
		BlockTime struct {
			LastDay struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_day"`
			LastHour struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_hour"`
			LastMonth struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_month"`
			LastWeek struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_week"`
		} `json:"block_times"`
		ChallengeCount struct {
			Active  int `json:"active"`
			LastDay int `json:"last_day"`
		} `json:"challenge_counts"`
		Counts struct {
			Validators       int `json:"validators"`
			Ouis             int `json:"ouis"`
			HotspotsDataonly int `json:"hotspots_dataonly"`
			Blocks           int `json:"blocks"`
			Challenges       int `json:"challenges"`
			Cities           int `json:"cities"`
			ConsensusGroups  int `json:"consensus_groups"`
			Countries        int `json:"countries"`
			Hotspots         int `json:"hotspots"`
			Transactions     int `json:"transactions"`
		} `json:"counts"`
		ElectionTimes struct {
			LastDay struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_day"`
			LastHour struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_hour"`
			LastMonth struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_month"`
			LastWeek struct {
				Avg    float64 `json:"avg"`
				Stddev float64 `json:"stddev"`
			} `json:"last_week"`
		} `json:"election_times"`
		TokenSupply float64 `json:"token_supply"`
	} `json:"data"`
}

func GetBlockchainStats() (*BlockchainStats, error) {
	const path = "/v1/stats"

	// query the api
	respBody, err := getHeliumApi(path, nil)
	if err != nil {
		return nil, err
	}

	// unmarshal the response
	respobject := BlockchainStats{}
	err = json.Unmarshal(respBody, &respobject)
	if err != nil {
		return nil, fmt.Errorf("failed to unmarshal response from path %v: %v", path, err)
	}

	return &respobject, nil
}