-
Notifications
You must be signed in to change notification settings - Fork 339
/
borrow.go
151 lines (130 loc) · 3.62 KB
/
borrow.go
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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
package types
import (
"fmt"
"strings"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// Borrow defines an amount of coins borrowed from a hard module account
type Borrow struct {
Borrower sdk.AccAddress `json:"borrower" yaml:"borrower"`
Amount sdk.Coins `json:"amount" yaml:"amount"`
Index BorrowInterestFactors `json:"index" yaml:"index"`
}
// NewBorrow returns a new Borrow instance
func NewBorrow(borrower sdk.AccAddress, amount sdk.Coins, index BorrowInterestFactors) Borrow {
return Borrow{
Borrower: borrower,
Amount: amount,
Index: index,
}
}
// Validate deposit validation
func (b Borrow) Validate() error {
if b.Borrower.Empty() {
return fmt.Errorf("Depositor cannot be empty")
}
if !b.Amount.IsValid() {
return fmt.Errorf("Invalid deposit coins: %s", b.Amount)
}
if err := b.Index.Validate(); err != nil {
return err
}
return nil
}
func (b Borrow) String() string {
return fmt.Sprintf(`Deposit:
Borrower: %s
Amount: %s
Index: %s
`, b.Borrower, b.Amount, b.Index)
}
// Borrows is a slice of Borrow
type Borrows []Borrow
// Validate validates Borrows
func (bs Borrows) Validate() error {
borrowDupMap := make(map[string]Borrow)
for _, b := range bs {
if err := b.Validate(); err != nil {
return err
}
dup, ok := borrowDupMap[b.Borrower.String()]
if ok {
return fmt.Errorf("duplicate borrower: %s\n%s", b, dup)
}
borrowDupMap[b.Borrower.String()] = b
}
return nil
}
// BorrowInterestFactor defines an individual borrow interest factor
type BorrowInterestFactor struct {
Denom string `json:"denom" yaml:"denom"`
Value sdk.Dec `json:"value" yaml:"value"`
}
// NewBorrowInterestFactor returns a new BorrowInterestFactor instance
func NewBorrowInterestFactor(denom string, value sdk.Dec) BorrowInterestFactor {
return BorrowInterestFactor{
Denom: denom,
Value: value,
}
}
// Validate validates BorrowInterestFactor values
func (bif BorrowInterestFactor) Validate() error {
if strings.TrimSpace(bif.Denom) == "" {
return fmt.Errorf("borrow interest factor denom cannot be empty")
}
if bif.Value.IsNegative() {
return fmt.Errorf("borrow interest factor value cannot be negative: %s", bif)
}
return nil
}
func (bif BorrowInterestFactor) String() string {
return fmt.Sprintf(`[%s,%s]
`, bif.Denom, bif.Value)
}
// BorrowInterestFactors is a slice of BorrowInterestFactor, because Amino won't marshal maps
type BorrowInterestFactors []BorrowInterestFactor
// GetInterestFactor returns a denom's interest factor value
func (bifs BorrowInterestFactors) GetInterestFactor(denom string) (sdk.Dec, bool) {
for _, bif := range bifs {
if bif.Denom == denom {
return bif.Value, true
}
}
return sdk.ZeroDec(), false
}
// SetInterestFactor sets a denom's interest factor value
func (bifs BorrowInterestFactors) SetInterestFactor(denom string, factor sdk.Dec) BorrowInterestFactors {
for i, bif := range bifs {
if bif.Denom == denom {
bif.Value = factor
bifs[i] = bif
return bifs
}
}
return append(bifs, NewBorrowInterestFactor(denom, factor))
}
// RemoveInterestFactor removes a denom's interest factor value
func (bifs BorrowInterestFactors) RemoveInterestFactor(denom string) (BorrowInterestFactors, bool) {
for i, bif := range bifs {
if bif.Denom == denom {
return append(bifs[:i], bifs[i+1:]...), true
}
}
return bifs, false
}
// Validate validates BorrowInterestFactors
func (bifs BorrowInterestFactors) Validate() error {
for _, bif := range bifs {
if err := bif.Validate(); err != nil {
return err
}
}
return nil
}
func (bifs BorrowInterestFactors) String() string {
out := ""
for _, bif := range bifs {
out += bif.String()
}
return out
}