package message

import (
	"strings"

	"github.com/Mrs4s/MiraiGo/binary"
	"github.com/Mrs4s/MiraiGo/client/pb/msg"
	"github.com/Mrs4s/MiraiGo/internal/proto"
)

/* -------- Definitions -------- */

type GroupImageElement struct {
	ImageId      string
	FileId       int64
	ImageType    int32
	ImageBizType ImageBizType
	Size         int32
	Width        int32
	Height       int32
	Md5          []byte
	Url          string

	// EffectID show pic effect id.
	EffectID int32
	Flash    bool
}

type FriendImageElement struct {
	ImageId string
	Md5     []byte
	Size    int32
	Url     string

	Flash bool
}

type GuildImageElement struct {
	FileId        int64
	FilePath      string
	ImageType     int32
	Size          int32
	Width         int32
	Height        int32
	DownloadIndex string
	Md5           []byte
	Url           string
}

type ImageBizType uint32

const (
	UnknownBizType  ImageBizType = 0
	CustomFaceImage ImageBizType = 1
	HotImage        ImageBizType = 2
	DouImage        ImageBizType = 3 // 斗图
	ZhiTuImage      ImageBizType = 4
	StickerImage    ImageBizType = 7
	SelfieImage     ImageBizType = 8
	StickerAdImage  ImageBizType = 9
	RelatedEmoImage ImageBizType = 10
	HotSearchImage  ImageBizType = 13
)

/* ------ Implementations ------ */

func NewGroupImage(id string, md5 []byte, fid int64, size, width, height, imageType int32) *GroupImageElement {
	return &GroupImageElement{
		ImageId:   id,
		FileId:    fid,
		Md5:       md5,
		Size:      size,
		ImageType: imageType,
		Width:     width,
		Height:    height,
		Url:       "https://gchat.qpic.cn/gchatpic_new/1/0-0-" + strings.ReplaceAll(binary.CalculateImageResourceId(md5)[1:37], "-", "") + "/0?term=2",
	}
}

func (e *GroupImageElement) Type() ElementType {
	return Image
}

func (e *FriendImageElement) Type() ElementType {
	return Image
}

func (e *GuildImageElement) Type() ElementType {
	return Image
}

func (e *GroupImageElement) Pack() (r []*msg.Elem) {
	// width and height are required, set 720*480 if not set
	if e.Width == 0 {
		e.Width = 720
	}
	if e.Height == 0 {
		e.Height = 480
	}

	cface := &msg.CustomFace{
		FileType: proto.Int32(66),
		Useful:   proto.Int32(1),
		// Origin:    1,
		BizType:   proto.Int32(5),
		Width:     &e.Width,
		Height:    &e.Height,
		FileId:    proto.Int32(int32(e.FileId)),
		FilePath:  &e.ImageId,
		ImageType: &e.ImageType,
		Size:      &e.Size,
		Md5:       e.Md5,
		Flag:      make([]byte, 4),
		// OldData:  imgOld,
	}

	if e.Flash { // resolve flash pic
		flash := &msg.MsgElemInfoServtype3{FlashTroopPic: cface}
		data, _ := proto.Marshal(flash)
		flashElem := &msg.Elem{
			CommonElem: &msg.CommonElem{
				ServiceType: proto.Int32(3),
				PbElem:      data,
			},
		}
		textHint := &msg.Elem{
			Text: &msg.Text{
				Str: proto.String("[闪照]请使用新版手机QQ查看闪照。"),
			},
		}
		return []*msg.Elem{flashElem, textHint}
	}
	res := &msg.ResvAttr{}
	if e.EffectID != 0 { // resolve show pic
		res.ImageShow = &msg.AnimationImageShow{
			EffectId:       &e.EffectID,
			AnimationParam: []byte("{}"),
		}
		cface.Flag = []byte{0x11, 0x00, 0x00, 0x00}
	}
	if e.ImageBizType != UnknownBizType {
		res.ImageBizType = proto.Uint32(uint32(e.ImageBizType))
	}
	cface.PbReserve, _ = proto.Marshal(res)
	elem := &msg.Elem{CustomFace: cface}
	return []*msg.Elem{elem}
}

func (e *FriendImageElement) Pack() []*msg.Elem {
	image := &msg.NotOnlineImage{
		FilePath:     &e.ImageId,
		ResId:        &e.ImageId,
		OldPicMd5:    proto.Bool(false),
		PicMd5:       e.Md5,
		DownloadPath: &e.ImageId,
		Original:     proto.Int32(1),
		PbReserve:    []byte{0x78, 0x02},
	}

	if e.Flash {
		flash := &msg.MsgElemInfoServtype3{FlashC2CPic: image}
		data, _ := proto.Marshal(flash)
		flashElem := &msg.Elem{
			CommonElem: &msg.CommonElem{
				ServiceType: proto.Int32(3),
				PbElem:      data,
			},
		}
		textHint := &msg.Elem{
			Text: &msg.Text{
				Str: proto.String("[闪照]请使用新版手机QQ查看闪照。"),
			},
		}
		return []*msg.Elem{flashElem, textHint}
	}

	elem := &msg.Elem{NotOnlineImage: image}
	return []*msg.Elem{elem}
}

func (e *GuildImageElement) Pack() (r []*msg.Elem) {
	cface := &msg.CustomFace{
		FileType:  proto.Int32(66),
		Useful:    proto.Int32(1),
		BizType:   proto.Int32(0),
		Width:     &e.Width,
		Height:    &e.Height,
		FileId:    proto.Int32(int32(e.FileId)),
		FilePath:  &e.FilePath,
		ImageType: &e.ImageType,
		Size:      &e.Size,
		Md5:       e.Md5,
		PbReserve: binary.DynamicProtoMessage{
			1: uint32(0), 2: uint32(0), 6: "", 10: uint32(0), 15: uint32(8),
			20: e.DownloadIndex,
		}.Encode(),
	}
	elem := &msg.Elem{CustomFace: cface}
	return []*msg.Elem{elem}
}