package ui

import (
	"fyne.io/fyne/v2"
	"gitea.mmo.to/ProtocolPacketForger/ppf/protocol"
	"gitea.mmo.to/ProtocolPacketForger/ppf/protocolctl"
)

// implements FileHandler
type ProtocolFileHandler struct {
	ProtocolEditor *ProtocolEditor
	name           string
	path           string
	changed        bool

	Reference *protocol.ProtocolStructure
}

func NewProtocolFileHandler() *ProtocolFileHandler {
	pfh := ProtocolFileHandler{}
	pfh.name = "*new"
	pfh.changed = true
	pfh.ProtocolEditor = NewProtocolEditor(protocolctl.NewProtocolStructure())
	return &pfh
}

func (pfh *ProtocolFileHandler) Load() error {
	prot, err := protocolctl.LoadNew(pfh.Path())
	if err != nil {
		// process error
		err = nil
	}
	pfh.ProtocolEditor = NewProtocolEditor(prot)
	pfh.Reference = prot
	pfh.name = prot.Metadata.Name
	return err
}
func (pfh *ProtocolFileHandler) GetWorkarea() *fyne.Container {
	return pfh.ProtocolEditor.Representation
}

func (pfh *ProtocolFileHandler) Name() string {
	return pfh.name
}
func (pfh *ProtocolFileHandler) Path() string {
	return pfh.path
}
func (pfh *ProtocolFileHandler) Open(path string) error {
	pfh.path = path
	return pfh.Load()
}
func (pfh *ProtocolFileHandler) Save() error {
	protocolctl.Save(pfh.Reference, pfh.path)
	pfh.changed = false
	return nil
}
func (pfh *ProtocolFileHandler) SaveAs(path string) error {
	pfh.path = path
	pfh.Save()
	return nil
}
func (pfh *ProtocolFileHandler) Close() error {
	return pfh.Save()
}

func (pfh *ProtocolFileHandler) SetChanged() {
	pfh.changed = true
}

func (pfh *ProtocolFileHandler) HasChanged() bool {
	return pfh.changed
}
func (pfh *ProtocolFileHandler) GetReference() interface{} {
	return pfh.Reference
}