package ent

import (
	"bytes"
	"fmt"

	"github.com/jordanorelli/hyperstone/dota"
)

type Field struct {
	_type             Symbol   // type of data held by the field
	name              Symbol   // name of the field
	sendNode          Symbol   // not sure what this is
	bits              int      // number of bits used to encode field?
	low               *float32 // lower limit of field values
	high              *float32 // upper limit of field values
	flags             int      // dunno what these flags do
	serializer        *Symbol  // class on which the field was defined
	serializerVersion *int32   // version of the class on which the field was defined
	class             *Class   // source class on which the field was originally defined
	encoder           *Symbol  // binary encoder, named explicitly in protobuf
	decoder                    // decodes field values from a bit stream
}

func (f Field) String() string {
	var buf bytes.Buffer
	fmt.Fprintf(&buf, "{type: %s name: %s send: %s", f._type, f.name, f.sendNode)
	if f.bits > 0 {
		fmt.Fprintf(&buf, " bits: %d", f.bits)
	}
	if f.flags > 0 {
		fmt.Fprintf(&buf, " flags: %d", f.flags)
	}
	if f.low != nil {
		fmt.Fprintf(&buf, " low: %f", *f.low)
	}
	if f.high != nil {
		fmt.Fprintf(&buf, " high: %f", *f.high)
	}
	if f.serializer != nil {
		fmt.Fprintf(&buf, " serializer: %s", *f.serializer)
	}
	if f.serializerVersion != nil {
		fmt.Fprintf(&buf, " serializer_v: %d", *f.serializerVersion)
	}
	if f.encoder != nil {
		fmt.Fprintf(&buf, " encoder: %s", *f.encoder)
	}
	fmt.Fprint(&buf, "}")
	return buf.String()
}

func (f *Field) fromProto(flat *dota.ProtoFlattenedSerializerFieldT, t *SymbolTable) {
	f._type = t.Symbol(int(flat.GetVarTypeSym()))
	f.name = t.Symbol(int(flat.GetVarNameSym()))
	f.bits = int(flat.GetBitCount())
	f.flags = int(flat.GetEncodeFlags())
	f.low = flat.LowValue
	f.high = flat.HighValue

	if flat.FieldSerializerNameSym == nil {
		f.serializer = nil
	} else {
		f.serializer = new(Symbol)
		*f.serializer = t.Symbol(int(flat.GetFieldSerializerNameSym()))
	}

	f.serializerVersion = flat.FieldSerializerVersion
	// panic if we don't have a send node cause that shit is corrupt yo
	f.sendNode = t.Symbol(int(*flat.SendNodeSym))
	Debug.Printf("new field: %v", f)
}