package object

import (
	"fmt"
	"sort"
)

// Builtins ...
var Builtins = map[string]*Builtin{
	"len":    {Name: "len", Fn: Len},
	"input":  {Name: "input", Fn: Input},
	"print":  {Name: "print", Fn: Print},
	"first":  {Name: "first", Fn: First},
	"last":   {Name: "last", Fn: Last},
	"rest":   {Name: "rest", Fn: Rest},
	"push":   {Name: "push", Fn: Push},
	"pop":    {Name: "pop", Fn: Pop},
	"exit":   {Name: "exit", Fn: Exit},
	"assert": {Name: "assert", Fn: Assert},
	"bool":   {Name: "bool", Fn: Bool},
	"int":    {Name: "int", Fn: Int},
	"str":    {Name: "str", Fn: Str},
	"typeof": {Name: "typeof", Fn: TypeOf},
	"args":   {Name: "args", Fn: Args},
	"lower":  {Name: "lower", Fn: Lower},
	"upper":  {Name: "upper", Fn: Upper},
	"join":   {Name: "join", Fn: Join},
	"split":  {Name: "split", Fn: Split},
	"find":   {Name: "find", Fn: Find},
	"read":   {Name: "read", Fn: Read},
	"write":  {Name: "write", Fn: Write},
}

// BuiltinsIndex ...
var BuiltinsIndex []*Builtin

func init() {
	var keys []string
	for k := range Builtins {
		keys = append(keys, k)
	}
	sort.Strings(keys)

	for _, k := range keys {
		BuiltinsIndex = append(BuiltinsIndex, Builtins[k])
	}
}

func newError(format string, a ...interface{}) *Error {
	return &Error{Message: fmt.Sprintf(format, a...)}
}