package d2netpacket

import (
	"encoding/json"
	"log"

	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
	"github.com/OpenDiablo2/OpenDiablo2/d2core/d2hero"
	"github.com/OpenDiablo2/OpenDiablo2/d2core/d2inventory"
	"github.com/OpenDiablo2/OpenDiablo2/d2networking/d2netpacket/d2netpackettype"
)

// AddPlayerPacket contains the data required to create a Player entity.
// It is sent by the server to create the entity for a newly connected
// player on a client.
type AddPlayerPacket struct {
	ID        string                         `json:"id"`
	Name      string                         `json:"name"`
	X         int                            `json:"x"`
	Y         int                            `json:"y"`
	HeroType  d2enum.Hero                    `json:"hero"`
	Equipment d2inventory.CharacterEquipment `json:"equipment"`
	Stats     *d2hero.HeroStatsState         `json:"heroStats"`
	Skills    map[int]*d2hero.HeroSkill      `json:"heroSkills"`
}

// CreateAddPlayerPacket returns a NetPacket which declares an
// AddPlayerPacket with the data in given parameters.
func CreateAddPlayerPacket(id, name string, x, y int, heroType d2enum.Hero,
	stats *d2hero.HeroStatsState, skills map[int]*d2hero.HeroSkill, equipment d2inventory.CharacterEquipment) NetPacket {
	addPlayerPacket := AddPlayerPacket{
		ID:        id,
		Name:      name,
		X:         x,
		Y:         y,
		HeroType:  heroType,
		Equipment: equipment,
		Stats:     stats,
		Skills:    skills,
	}

	b, err := json.Marshal(addPlayerPacket)
	if err != nil {
		log.Print(err)
	}

	return NetPacket{
		PacketType: d2netpackettype.AddPlayer,
		PacketData: b,
	}
}

// UnmarshalAddPlayer unmarshals the packet data into an AddPlayerPacket struct
func UnmarshalAddPlayer(packet []byte) (AddPlayerPacket, error) {
	var p AddPlayerPacket
	if err := json.Unmarshal(packet, &p); err != nil {
		return p, err
	}

	return p, nil
}