forked from goroumaru/gocryptotrader
/
code.go
312 lines (275 loc) · 6.69 KB
/
code.go
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package currency
import (
"encoding/json"
"errors"
"fmt"
"strings"
"unicode"
)
func (r Role) String() string {
switch r {
case Unset:
return UnsetRoleString
case Fiat:
return FiatCurrencyString
case Cryptocurrency:
return CryptocurrencyString
case Token:
return TokenString
case Contract:
return ContractString
default:
return "UNKNOWN"
}
}
// MarshalJSON conforms Role to the marshaller interface
func (r Role) MarshalJSON() ([]byte, error) {
return json.Marshal(r.String())
}
// UnmarshalJSON conforms Role to the unmarshaller interface
func (r *Role) UnmarshalJSON(d []byte) error {
var incoming string
err := json.Unmarshal(d, &incoming)
if err != nil {
return err
}
switch incoming {
case UnsetRoleString:
*r = Unset
case FiatCurrencyString:
*r = Fiat
case CryptocurrencyString:
*r = Cryptocurrency
case TokenString:
*r = Token
case ContractString:
*r = Contract
default:
return fmt.Errorf("unmarshal error role type %s unsupported for currency",
incoming)
}
return nil
}
// HasData returns true if the type contains data
func (b *BaseCodes) HasData() bool {
b.mtx.Lock()
defer b.mtx.Unlock()
return len(b.Items) != 0
}
// GetFullCurrencyData returns a type that is read to dump to file
func (b *BaseCodes) GetFullCurrencyData() (File, error) {
var file File
for i := range b.Items {
switch b.Items[i].Role {
case Unset:
file.UnsetCurrency = append(file.UnsetCurrency, *b.Items[i])
case Fiat:
file.FiatCurrency = append(file.FiatCurrency, *b.Items[i])
case Cryptocurrency:
file.Cryptocurrency = append(file.Cryptocurrency, *b.Items[i])
case Token:
file.Token = append(file.Token, *b.Items[i])
case Contract:
file.Contracts = append(file.Contracts, *b.Items[i])
default:
return file, errors.New("role undefined")
}
}
file.LastMainUpdate = b.LastMainUpdate.Unix()
return file, nil
}
// GetCurrencies gets the full currency list from the base code type available
// from the currency system
func (b *BaseCodes) GetCurrencies() Currencies {
var currencies Currencies
b.mtx.Lock()
for i := range b.Items {
currencies = append(currencies, Code{
Item: b.Items[i],
})
}
b.mtx.Unlock()
return currencies
}
// UpdateCurrency updates or registers a currency/contract
func (b *BaseCodes) UpdateCurrency(fullName, symbol, blockchain string, id int, r Role) error {
if r == Unset {
return fmt.Errorf("role cannot be unset in update currency for %s", symbol)
}
b.mtx.Lock()
defer b.mtx.Unlock()
for i := range b.Items {
if b.Items[i].Symbol != symbol {
continue
}
if b.Items[i].Role == Unset {
b.Items[i].FullName = fullName
b.Items[i].Role = r
b.Items[i].AssocChain = blockchain
b.Items[i].ID = id
return nil
}
if b.Items[i].Role != r {
// Captures same name currencies and duplicates to different roles
break
}
b.Items[i].FullName = fullName
b.Items[i].AssocChain = blockchain
b.Items[i].ID = id
return nil
}
b.Items = append(b.Items, &Item{
Symbol: symbol,
FullName: fullName,
Role: r,
AssocChain: blockchain,
ID: id,
})
return nil
}
// Register registers a currency from a string and returns a currency code
func (b *BaseCodes) Register(c string) Code {
NewUpperCode := c
lower := true
for _, r := range c {
if !unicode.IsLower(r) {
lower = false
break
}
}
if lower {
NewUpperCode = strings.ToUpper(c)
}
format := strings.Contains(c, NewUpperCode)
b.mtx.Lock()
defer b.mtx.Unlock()
for i := range b.Items {
if b.Items[i].Symbol == NewUpperCode {
return Code{
Item: b.Items[i],
UpperCase: format,
}
}
}
newItem := &Item{Symbol: NewUpperCode}
b.Items = append(b.Items, newItem)
return Code{
Item: newItem,
UpperCase: format,
}
}
// RegisterFiat registers a fiat currency from a string and returns a currency
// code
func (b *BaseCodes) RegisterFiat(c string) Code {
c = strings.ToUpper(c)
b.mtx.Lock()
defer b.mtx.Unlock()
for i := range b.Items {
if b.Items[i].Symbol == c {
if b.Items[i].Role == Unset {
b.Items[i].Role = Fiat
}
if b.Items[i].Role != Fiat {
continue
}
return Code{Item: b.Items[i], UpperCase: true}
}
}
item := &Item{Symbol: c, Role: Fiat}
b.Items = append(b.Items, item)
return Code{Item: item, UpperCase: true}
}
// LoadItem sets item data
func (b *BaseCodes) LoadItem(item *Item) error {
b.mtx.Lock()
defer b.mtx.Unlock()
for i := range b.Items {
if b.Items[i].Symbol != item.Symbol ||
(b.Items[i].Role != Unset &&
item.Role != Unset &&
b.Items[i].Role != item.Role) {
continue
}
b.Items[i].AssocChain = item.AssocChain
b.Items[i].ID = item.ID
b.Items[i].Role = item.Role
b.Items[i].FullName = item.FullName
return nil
}
b.Items = append(b.Items, item)
return nil
}
// NewCode returns a new currency registered code
func NewCode(c string) Code {
return storage.ValidateCode(c)
}
// String conforms to the stringer interface
func (i *Item) String() string {
return i.FullName
}
// String converts the code to string
func (c Code) String() string {
if c.Item == nil {
return ""
}
if c.UpperCase {
return c.Item.Symbol
}
return strings.ToLower(c.Item.Symbol)
}
// Lower converts the code to lowercase formatting
func (c Code) Lower() Code {
c.UpperCase = false
return c
}
// Upper converts the code to uppercase formatting
func (c Code) Upper() Code {
c.UpperCase = true
return c
}
// UnmarshalJSON comforms type to the umarshaler interface
func (c *Code) UnmarshalJSON(d []byte) error {
var newcode string
err := json.Unmarshal(d, &newcode)
if err != nil {
return err
}
*c = NewCode(newcode)
return nil
}
// MarshalJSON conforms type to the marshaler interface
func (c Code) MarshalJSON() ([]byte, error) {
if c.Item == nil {
return json.Marshal("")
}
return json.Marshal(c.String())
}
// IsEmpty returns true if the code is empty
func (c Code) IsEmpty() bool {
if c.Item == nil {
return true
}
return c.Item.Symbol == ""
}
// Match returns if the code supplied is the same as the corresponding code
func (c Code) Match(check Code) bool {
return c.Item == check.Item
}
// IsDefaultFiatCurrency checks if the currency passed in matches the default
// fiat currency
func (c Code) IsDefaultFiatCurrency() bool {
return storage.IsDefaultCurrency(c)
}
// IsDefaultCryptocurrency checks if the currency passed in matches the default
// cryptocurrency
func (c Code) IsDefaultCryptocurrency() bool {
return storage.IsDefaultCryptocurrency(c)
}
// IsFiatCurrency checks if the currency passed is an enabled fiat currency
func (c Code) IsFiatCurrency() bool {
return storage.IsFiatCurrency(c)
}
// IsCryptocurrency checks if the currency passed is an enabled CRYPTO currency.
func (c Code) IsCryptocurrency() bool {
return storage.IsCryptocurrency(c)
}