// Edge implement Item interface

package main

import (
	"fmt"
	"strconv"
)

// TODO: handle arc__ and details__ fields
type Edge struct {
	Id                  string  `yaml:"id" json:"id"`
	Source              string  `yaml:"source" json:"source"`
	Target              string  `yaml:"target" json:"target"`
	MainStat            string  `yaml:"mainstat,omitempty" json:"mainstat,omitempty"`
	MainStatQuery       string  `yaml:"mainstatquery,omitempty" json:"mainstatquery,omitempty"`
	MainStatFormat      string  `yaml:"mainstatformat,omitempty" json:"mainstatformat,omitempty"`
	SecondaryStat       string  `yaml:"secondarystat,omitempty" json:"secondarystat,omitempty"`
	SecondaryStatQuery  string  `yaml:"secondarystatquery,omitempty" json:"secondarystatquery,omitempty"`
	SecondaryStatFormat string  `yaml:"secondarystatformat,omitempty" json:"secondarystatformat,omitempty"`
	Color               string  `yaml:"color,omitempty" json:"color,omitempty"`
	Thickness           int     `yaml:"thickness,omitempty" json:"thickness,omitempty"`
	HighLighted         bool    `yaml:"highlighted,omitempty" json:"hightlighted,omitempty"`
	StrokeDashArray     float32 `yaml:"strokeDasharray,omitempty" json:"strokeDasharray,omitempty"`
}

func (e Edge) GetId() string {
	return e.Id
}

func (e Edge) GetMainStat() string {
	return e.MainStat
}

func (e Edge) GetSecondaryStat() string {
	return e.SecondaryStat
}

func (e Edge) GetMainStatQuery() string {
	return e.MainStatQuery
}

func (e Edge) GetSecondaryStatQuery() string {
	return e.SecondaryStatQuery
}

func (e Edge) GetMainStatFormat() string {
	return e.MainStatFormat
}

func (e Edge) GetSecondaryStatFormat() string {
	return e.SecondaryStatFormat
}

func (e *Edge) SetMainStat(stat string) {
	e.MainStat = fmt.Sprintf("%s", stat)
}

func (e *Edge) SetSecondaryStat(stat string) {
	e.SecondaryStat = fmt.Sprintf("%s", stat)
}

// Custom marshaler to not send (main|secondary)statquery
func (e Edge) MarshalJSON() ([]byte, error) {
	jsonRes := `{"id":"` + e.Id + `","source":"` + e.Source + `","target":"` + e.Target + `"`
	if len(e.MainStat) > 0 {
		jsonRes += `,"mainstat":"` + e.MainStat + `"`
	}
	if len(e.SecondaryStat) > 0 {
		jsonRes += `,"secondarystat":"` + e.SecondaryStat + `"`
	}
	if len(e.Color) > 0 {
		jsonRes += `,"color":"` + e.Color + `"`
	}
	if e.Thickness > 0 {
		jsonRes += `,"thickness":` + strconv.Itoa(e.Thickness)
	}
	if e.HighLighted {
		jsonRes += `,"highlighted":true`
	}
	// TODO : e.StrokeDashArray
	jsonRes += `}`
	
	return []byte(jsonRes), nil
}