mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-23 13:38:35 +00:00
84 lines
2.7 KiB
Go
84 lines
2.7 KiB
Go
package client
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
|
|
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
|
|
"github.com/nspcc-dev/neo-go/pkg/util"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
|
|
)
|
|
|
|
// GetFeePerByte invokes `getFeePerByte` method on a native Policy contract.
|
|
func (c *Client) GetFeePerByte() (int64, error) {
|
|
if !c.initDone {
|
|
return 0, errNetworkNotInitialized
|
|
}
|
|
return c.invokeNativePolicyMethod("getFeePerByte")
|
|
}
|
|
|
|
// GetExecFeeFactor invokes `getExecFeeFactor` method on a native Policy contract.
|
|
func (c *Client) GetExecFeeFactor() (int64, error) {
|
|
if !c.initDone {
|
|
return 0, errNetworkNotInitialized
|
|
}
|
|
return c.invokeNativePolicyMethod("getExecFeeFactor")
|
|
}
|
|
|
|
// GetMaxNotValidBeforeDelta invokes `getMaxNotValidBeforeDelta` method on a native Notary contract.
|
|
func (c *Client) GetMaxNotValidBeforeDelta() (int64, error) {
|
|
notaryHash, err := c.GetNativeContractHash(nativenames.Notary)
|
|
if err != nil {
|
|
return 0, fmt.Errorf("failed to get native Notary hash: %w", err)
|
|
}
|
|
return c.invokeNativeGetMethod(notaryHash, "getMaxNotValidBeforeDelta")
|
|
}
|
|
|
|
// invokeNativePolicy method invokes Get* method on a native Policy contract.
|
|
func (c *Client) invokeNativePolicyMethod(operation string) (int64, error) {
|
|
if !c.initDone {
|
|
return 0, errNetworkNotInitialized
|
|
}
|
|
return c.invokeNativeGetMethod(c.cache.nativeHashes[nativenames.Policy], operation)
|
|
}
|
|
|
|
func (c *Client) invokeNativeGetMethod(hash util.Uint160, operation string) (int64, error) {
|
|
result, err := c.InvokeFunction(hash, operation, []smartcontract.Parameter{}, nil)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
err = getInvocationError(result)
|
|
if err != nil {
|
|
return 0, fmt.Errorf("failed to invoke %s method of native contract %s: %w", operation, hash.StringLE(), err)
|
|
}
|
|
return topIntFromStack(result.Stack)
|
|
}
|
|
|
|
// IsBlocked invokes `isBlocked` method on native Policy contract.
|
|
func (c *Client) IsBlocked(hash util.Uint160) (bool, error) {
|
|
if !c.initDone {
|
|
return false, errNetworkNotInitialized
|
|
}
|
|
result, err := c.InvokeFunction(c.cache.nativeHashes[nativenames.Policy], "isBlocked", []smartcontract.Parameter{{
|
|
Type: smartcontract.Hash160Type,
|
|
Value: hash,
|
|
}}, nil)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
err = getInvocationError(result)
|
|
if err != nil {
|
|
return false, fmt.Errorf("failed to check if account is blocked: %w", err)
|
|
}
|
|
return topBoolFromStack(result.Stack)
|
|
}
|
|
|
|
// topBoolFromStack returns the top boolean value from stack
|
|
func topBoolFromStack(st []stackitem.Item) (bool, error) {
|
|
index := len(st) - 1 // top stack element is last in the array
|
|
result, ok := st[index].Value().(bool)
|
|
if !ok {
|
|
return false, fmt.Errorf("invalid stack item type: %s", st[index].Type())
|
|
}
|
|
return result, nil
|
|
}
|