package exchange

import (
	"fmt"
	"github.com/shopspring/decimal"
	"time"
)

type ExPower struct {
	expr  int64
	power decimal.Decimal
}

var exPower = &ExPower{
	expr:  0,
	power: decimal.Zero,
}

var totalPower = decimal.NewFromFloat(21 * 10000 * 1000)
var hisProduct = decimal.NewFromFloat(28080000)

type ExPowerResp struct {
	Code int    `json:"code"`
	Msg  string `json:"msg"`
	Time int    `json:"time"`
	Data string `json:"data"`
}

func GetExPower() decimal.Decimal {
	nowProduct := exPower.power
	if exPower.expr < time.Now().Unix() {
		nowProduct = lastPower()
	}
	lessPower := totalPower.Sub(nowProduct)
	if lessPower.LessThanOrEqual(decimal.Zero) || lessPower.GreaterThanOrEqual(totalPower.Sub(hisProduct)) {
		return totalPower.Sub(hisProduct)
	}
	return lessPower
}

func lastPower() decimal.Decimal {
	url := fmt.Sprintf("https://openapi.aichash.xyz/openapi/v1/server/wholeNetwork")
	resp, err := get[ExPowerResp](url)
	if err != nil {
		return exPower.power
	}
	if resp.Code == 200 {
		power, err := decimal.NewFromString(resp.Data)
		if err != nil {
			return exPower.power
		} else {
			setLastPower(power)
		}
	}
	return exPower.power
}

func setLastPower(power decimal.Decimal) {
	exPower.expr = time.Now().Unix() + 3600
	exPower.power = power
}