package strings

import (
	"encoding/base64"

	"github.com/zclconf/go-cty/cty"
	"github.com/zclconf/go-cty/cty/function"
)

func Base64Encode() function.Function {
	return function.New(&function.Spec{
		Description: "Encode a string as base64",
		Params: []function.Parameter{
			{
				Name:        "input",
				Description: "input string to be encoded as base64",
				Type:        cty.String,
			},
		},
		Type: function.StaticReturnType(cty.String),
		Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
			return cty.StringVal(base64.StdEncoding.EncodeToString([]byte(args[0].AsString()))), nil
		},
	})
}