117 lines
2.4 KiB
Go
117 lines
2.4 KiB
Go
package tokencontract
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import (
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"github.com/nspcc-dev/neo-go/examples/token/nep5"
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"github.com/nspcc-dev/neo-go/pkg/interop/storage"
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"github.com/nspcc-dev/neo-go/pkg/interop/util"
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)
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const (
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decimals = 8
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multiplier = 100000000
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)
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var owner = util.FromAddress("NMipL5VsNoLUBUJKPKLhxaEbPQVCZnyJyB")
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// createToken initializes the Token Interface for the Smart Contract to operate with
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func createToken() nep5.Token {
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return nep5.Token{
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Name: "Awesome NEO Token",
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Symbol: "ANT",
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Decimals: decimals,
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Owner: owner,
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TotalSupply: 11000000 * multiplier,
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CirculationKey: "TokenCirculation",
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}
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}
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// Main function = contract entry
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func Main(operation string, args []interface{}) interface{} {
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if operation == "name" {
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return Name()
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}
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if operation == "symbol" {
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return Symbol()
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}
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if operation == "decimals" {
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return Decimals()
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}
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if operation == "totalSupply" {
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return TotalSupply()
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}
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if operation == "balanceOf" {
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hodler := args[0].([]byte)
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return BalanceOf(hodler)
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}
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if operation == "transfer" && checkArgs(args, 3) {
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from := args[0].([]byte)
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to := args[1].([]byte)
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amount := args[2].(int)
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return Transfer(from, to, amount)
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}
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if operation == "mint" && checkArgs(args, 1) {
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addr := args[0].([]byte)
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return Mint(addr)
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}
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return true
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}
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// checkArgs checks args array against a length indicator
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func checkArgs(args []interface{}, length int) bool {
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if len(args) == length {
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return true
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}
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return false
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}
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// Name returns the token name
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func Name() string {
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t := createToken()
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return t.Name
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}
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// Symbol returns the token symbol
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func Symbol() string {
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t := createToken()
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return t.Symbol
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}
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// Decimals returns the token decimals
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func Decimals() int {
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t := createToken()
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return t.Decimals
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}
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// TotalSupply returns the token total supply value
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func TotalSupply() interface{} {
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t := createToken()
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ctx := storage.GetContext()
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return t.GetSupply(ctx)
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}
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// BalanceOf returns the amount of token on the specified address
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func BalanceOf(holder []byte) interface{} {
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t := createToken()
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ctx := storage.GetContext()
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return t.BalanceOf(ctx, holder)
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}
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// Transfer token from one user to another
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func Transfer(from []byte, to []byte, amount int) bool {
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t := createToken()
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ctx := storage.GetContext()
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return t.Transfer(ctx, from, to, amount)
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}
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// Mint initial supply of tokens
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func Mint(to []byte) bool {
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t := createToken()
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ctx := storage.GetContext()
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return t.Mint(ctx, to)
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}
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