github.com/iotexproject/iotex-core@v1.14.1-rc1/ioctl/cmd/action/xrc20totalsupply.go (about)

     1  // Copyright (c) 2022 IoTeX Foundation
     2  // This source code is provided 'as is' and no warranties are given as to title or non-infringement, merchantability
     3  // or fitness for purpose and, to the extent permitted by law, all liability for your use of the code is disclaimed.
     4  // This source code is governed by Apache License 2.0 that can be found in the LICENSE file.
     5  
     6  package action
     7  
     8  import (
     9  	"fmt"
    10  	"math/big"
    11  
    12  	"github.com/pkg/errors"
    13  	"github.com/spf13/cobra"
    14  
    15  	"github.com/iotexproject/iotex-core/ioctl/config"
    16  	"github.com/iotexproject/iotex-core/ioctl/output"
    17  )
    18  
    19  // Multi-language support
    20  var (
    21  	_totalSupplyCmdShorts = map[config.Language]string{
    22  		config.English: "Get total supply",
    23  		config.Chinese: "获得总供应",
    24  	}
    25  	_totalSupplyCmdUses = map[config.Language]string{
    26  		config.English: "totalSupply -c ALIAS|CONTRACT_ADDRESS",
    27  		config.Chinese: "totalSupply -c 别名|合同地址",
    28  	}
    29  )
    30  
    31  // _xrc20TotalSupplyCmd represents total supply of the contract
    32  var _xrc20TotalSupplyCmd = &cobra.Command{
    33  	Use:   config.TranslateInLang(_totalSupplyCmdUses, config.UILanguage),
    34  	Short: config.TranslateInLang(_totalSupplyCmdShorts, config.UILanguage),
    35  	RunE: func(cmd *cobra.Command, args []string) error {
    36  		cmd.SilenceUsage = true
    37  		err := totalSupply()
    38  		return output.PrintError(err)
    39  	},
    40  }
    41  
    42  func totalSupply() error {
    43  	bytecode, err := _xrc20ABI.Pack("totalSupply")
    44  	if err != nil {
    45  		return output.NewError(output.ConvertError, "cannot generate bytecode from given command", err)
    46  	}
    47  	contract, err := xrc20Contract()
    48  	if err != nil {
    49  		return output.NewError(output.AddressError, "failed to get contract address", err)
    50  	}
    51  	result, err := Read(contract, "0", bytecode)
    52  	if err != nil {
    53  		return output.NewError(0, "failed to read contract", err)
    54  	}
    55  	decimal, ok := new(big.Int).SetString(result, 16)
    56  	if !ok {
    57  		return errors.New("failed to set contract supply")
    58  	}
    59  	message := amountMessage{RawData: result, Decimal: decimal.String()}
    60  	fmt.Println(message.String())
    61  	return err
    62  }