lua: Add account types and type names

accounts.go

@@ -10,27 +10,71 @@ import (
 	"strings"
 )
 
+type AccountType int64
+
 const (
-	Bank       int64 = 1
-	Cash             = 2
-	Asset            = 3
-	Liability        = 4
-	Investment       = 5
-	Income           = 6
-	Expense          = 7
-	Trading          = 8
-	Equity           = 9
-	Receivable       = 10
-	Payable          = 11
+	Bank       AccountType = 1 // start at 1 so that the default (0) is invalid
+	Cash                   = 2
+	Asset                  = 3
+	Liability              = 4
+	Investment             = 5
+	Income                 = 6
+	Expense                = 7
+	Trading                = 8
+	Equity                 = 9
+	Receivable             = 10
+	Payable                = 11
 )
 
+var AccountTypes = []AccountType{
+	Bank,
+	Cash,
+	Asset,
+	Liability,
+	Investment,
+	Income,
+	Expense,
+	Trading,
+	Equity,
+	Receivable,
+	Payable,
+}
+
+func (t AccountType) String() string {
+	switch t {
+	case Bank:
+		return "Bank"
+	case Cash:
+		return "Cash"
+	case Asset:
+		return "Asset"
+	case Liability:
+		return "Liability"
+	case Investment:
+		return "Investment"
+	case Income:
+		return "Income"
+	case Expense:
+		return "Expense"
+	case Trading:
+		return "Trading"
+	case Equity:
+		return "Equity"
+	case Receivable:
+		return "Receivable"
+	case Payable:
+		return "Payable"
+	}
+	return ""
+}
+
 type Account struct {
 	AccountId         int64
 	ExternalAccountId string
 	UserId            int64
 	SecurityId        int64
 	ParentAccountId   int64 // -1 if this account is at the root
-	Type              int64
+	Type              AccountType
 	Name              string
 
 	// monotonically-increasing account transaction version number. Used for

accounts_lua.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"github.com/yuin/gopher-lua"
 	"math/big"
+	"strings"
 )
 
 const luaAccountTypeName = "account"
@@ -63,6 +64,10 @@ func luaRegisterAccounts(L *lua.LState) {
 	L.SetField(mt, "__eq", L.NewFunction(luaAccount__eq))
 	L.SetField(mt, "__metatable", lua.LString("protected"))
 
+	for _, accttype := range AccountTypes {
+		L.SetField(mt, accttype.String(), lua.LNumber(float64(accttype)))
+	}
+
 	getAccountsFn := L.NewFunction(luaGetAccounts)
 	L.SetField(mt, "get_all", getAccountsFn)
 	// also register the get_accounts function as a global in its own right
@@ -121,6 +126,10 @@ func luaAccount__index(L *lua.LState) int {
 		L.Push(lua.LString(a.Name))
 	case "Type", "type":
 		L.Push(lua.LNumber(float64(a.Type)))
+	case "TypeName", "Typename":
+		L.Push(lua.LString(a.Type.String()))
+	case "typename":
+		L.Push(lua.LString(strings.ToLower(a.Type.String())))
 	case "Balance", "balance":
 		L.Push(L.NewFunction(luaAccountBalance))
 	default: