package amf

import (
	"io"
)

const (
	AMF0 = 0x00
	AMF3 = 0x03
)

const (
	AMF0_NUMBER_MARKER         = 0x00
	AMF0_BOOLEAN_MARKER        = 0x01
	AMF0_STRING_MARKER         = 0x02
	AMF0_OBJECT_MARKER         = 0x03
	AMF0_MOVIECLIP_MARKER      = 0x04
	AMF0_NULL_MARKER           = 0x05
	AMF0_UNDEFINED_MARKER      = 0x06
	AMF0_REFERENCE_MARKER      = 0x07
	AMF0_ECMA_ARRAY_MARKER     = 0x08
	AMF0_OBJECT_END_MARKER     = 0x09
	AMF0_STRICT_ARRAY_MARKER   = 0x0a
	AMF0_DATE_MARKER           = 0x0b
	AMF0_LONG_STRING_MARKER    = 0x0c
	AMF0_UNSUPPORTED_MARKER    = 0x0d
	AMF0_RECORDSET_MARKER      = 0x0e
	AMF0_XML_DOCUMENT_MARKER   = 0x0f
	AMF0_TYPED_OBJECT_MARKER   = 0x10
	AMF0_ACMPLUS_OBJECT_MARKER = 0x11
)

const (
	AMF0_BOOLEAN_FALSE = 0x00
	AMF0_BOOLEAN_TRUE  = 0x01
	AMF0_STRING_MAX    = 65535
	AMF3_INTEGER_MAX   = 536870911
)

const (
	AMF3_UNDEFINED_MARKER = 0x00
	AMF3_NULL_MARKER      = 0x01
	AMF3_FALSE_MARKER     = 0x02
	AMF3_TRUE_MARKER      = 0x03
	AMF3_INTEGER_MARKER   = 0x04
	AMF3_DOUBLE_MARKER    = 0x05
	AMF3_STRING_MARKER    = 0x06
	AMF3_XMLDOC_MARKER    = 0x07
	AMF3_DATE_MARKER      = 0x08
	AMF3_ARRAY_MARKER     = 0x09
	AMF3_OBJECT_MARKER    = 0x0a
	AMF3_XMLSTRING_MARKER = 0x0b
	AMF3_BYTEARRAY_MARKER = 0x0c
)

type ExternalHandler func(*Decoder, io.Reader) (interface{}, error)

type Decoder struct {
	refCache         []interface{}
	stringRefs       []string
	objectRefs       []interface{}
	traitRefs        []Trait
	externalHandlers map[string]ExternalHandler
}

func NewDecoder() *Decoder {
	return &Decoder{
		externalHandlers: make(map[string]ExternalHandler),
	}
}

func (d *Decoder) RegisterExternalHandler(name string, f ExternalHandler) {
	d.externalHandlers[name] = f
}

type Encoder struct {
}

type Version uint8

type Array []interface{}
type Object map[string]interface{}

type TypedObject struct {
	Type   string
	Object Object
}

type Trait struct {
	Type           string
	Externalizable bool
	Dynamic        bool
	Properties     []string
}

func NewTrait() *Trait {
	return &Trait{}
}

func NewTypedObject() *TypedObject {
	return &TypedObject{
		Type:   "",
		Object: make(Object),
	}
}