aergoio/aergo

package exec

import (
    "fmt"

    "github.com/aergoio/aergo/v2/cmd/brick/context"
    "github.com/aergoio/aergo/v2/types"
)

func init() {
    registerExec(&undoCommit{})
}

type undoCommit struct{}

func (c *undoCommit) Command() string {
    return "undo"
}

func (c *undoCommit) Syntax() string {
    return fmt.Sprintf("")
}

func (c *undoCommit) Usage() string {
    return "undo"
}

func (c *undoCommit) Describe() string {
    return "undo the previous transaction by disconnecting a block, which contains the tx"
}

func (c *undoCommit) Validate(args string) error {

    if context.Get().BestBlockNo() == 0 {
        return fmt.Errorf("There are no txs to undo")
    }
    return nil
}

func (c *undoCommit) Run(args string) (string, uint64, []*types.Event, error) {
    err := context.Get().DisConnectBlock()
    if err != nil {
        return "", 0, nil, err
    }
    return "Undo, Succesfully", 0, nil, nil
}