aboutsummaryrefslogtreecommitdiffstats
path: root/contracts/chequebook/api.go
blob: b2b2365f31fffc5a4b7a7b7d6b83d8841b7f9324 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package chequebook

import (
    "errors"
    "math/big"

    "github.com/ethereum/go-ethereum/common"
)

const Version = "1.0"

var errNoChequebook = errors.New("no chequebook")

type Api struct {
    chequebookf func() *Chequebook
}

func NewApi(ch func() *Chequebook) *Api {
    return &Api{ch}
}

func (self *Api) Balance() (string, error) {
    ch := self.chequebookf()
    if ch == nil {
        return "", errNoChequebook
    }
    return ch.Balance().String(), nil
}

func (self *Api) Issue(beneficiary common.Address, amount *big.Int) (cheque *Cheque, err error) {
    ch := self.chequebookf()
    if ch == nil {
        return nil, errNoChequebook
    }
    return ch.Issue(beneficiary, amount)
}

func (self *Api) Cash(cheque *Cheque) (txhash string, err error) {
    ch := self.chequebookf()
    if ch == nil {
        return "", errNoChequebook
    }
    return ch.Cash(cheque)
}

func (self *Api) Deposit(amount *big.Int) (txhash string, err error) {
    ch := self.chequebookf()
    if ch == nil {
        return "", errNoChequebook
    }
    return ch.Deposit(amount)
}