package aptos

import (
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
	"strings"
)

// GetTransactionOwnerAddress get Aptos transaction address
func GetTransactionOwnerAddress(contract, txHash, aptosNet string) (string, error) {
	if aptosNet == "" {
		aptosNet = "mainnet"
	}
	url := fmt.Sprintf("https://fullnode.%s.aptoslabs.com/v1/transactions/by_hash/%s", aptosNet, txHash)

	// Make a GET request to fetch transaction details
	resp, err := http.Get(url)
	if err != nil {
		return "", err
	}
	defer resp.Body.Close()

	var result map[string]interface{}
	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
		return "", err
	}

	payload, exists := result["payload"].(map[string]interface{})
	if !exists || payload["function"] == nil || payload["arguments"] == nil {
		return "", errors.New("invalid transaction format")
	}

	// Validate contract address
	function := payload["function"].(string)
	parts := strings.Split(function, "::")
	if len(parts) < 2 || parts[0]+"::"+parts[1] != contract {
		return "", errors.New("invalid contract address")
	}

	// Check if address exists
	address, ok := payload["arguments"].([]interface{})[0].(string)
	if !ok {
		return "", errors.New("invalid address format")
	}
	return address, nil
}

// StrPadAptosAddress aptos 地址补全
func StrPadAptosAddress(address string) string {
	if len(address) >= 66 {
		return address
	}
	perfix := "0000000000000000000000000000000000000000000000000000000000000000"
	address = address[2:]
	return "0x" + perfix[:64-len(address)] + address
}