package qbot

import (
	"encoding/json"
	"strconv"

	"github.com/awfufu/qbot/api"
)

func (r *Receiver) handleEvents(header *eventHeader, msgStr *[]byte) {
	switch header.PostType {
	case "notice":
		switch header.NoticeType {
		case "group_msg_emoji_like":
			notice := &api.EmojiLikeNotice{}
			if json.Unmarshal(*msgStr, notice) == nil {
				if n := parseEmojiLikeNotice(notice); n != nil {
					select {
					case r.emojiLike <- n:
					default:
					}
				}
			}
		case "group_recall":
			fallthrough
		case "friend_recall":
			notice := &api.RecallNotice{}
			if json.Unmarshal(*msgStr, notice) == nil {
				if n := parseRecallNotice(notice); n != nil {
					select {
					case r.recall <- n:
					default:
					}
				}
			}
		case "notify":
			if header.SubType == "poke" {
				notice := &api.PokeNotify{}
				if json.Unmarshal(*msgStr, notice) == nil {
					if n := parsePokeNotify(notice); n != nil {
						select {
						case r.poke <- n:
						default:
						}
					}
				}
			}
		}
	case "message":
		msgJson := &api.MessageJson{}
		if json.Unmarshal(*msgStr, msgJson) != nil {
			return
		}
		if msg := parseMsgJson(msgJson); msg != nil {
			select {
			case r.message <- msg:
			default:
			}
		}
	}
}

func parseMsgJson(raw *api.MessageJson) *Message {
	if raw == nil {
		return nil
	}

	result := Message{
		MsgID:   raw.MessageID,
		UserID:  raw.Sender.UserID,
		GroupID: raw.GroupID,
		Name:    raw.Sender.Nickname,
		Time:    raw.Time,
		Raw:     raw.RawMessage,
	}

	if raw.Sender.Card != "" {
		result.GroupCard = raw.Sender.Card
	}

	switch raw.MessageType {
	case "private":
		result.ChatType = Private
	case "group":
		result.ChatType = Group
	default:
		result.ChatType = OtherChat
	}

	switch raw.Sender.Role {
	case "owner":
		result.GroupRole = GroupOwner
	case "admin":
		result.GroupRole = GroupAdmin
	case "member":
		result.GroupRole = GroupMember
	default:
		result.GroupRole = NotAGroup
	}

	for _, msg := range raw.Message {
		var jsonData map[string]any
		if err := json.Unmarshal(msg.Data, &jsonData); err != nil {
			return nil
		}

		switch msg.Type {
		case "reply":
			switch v := jsonData["id"].(type) {
			case string: // string
				result.ReplyID, _ = strconv.ParseUint(v, 10, 64)
			case float64: // number
				result.ReplyID = uint64(v)
			}
		case "text":
			if text, ok := jsonData["text"].(string); ok {
				result.Array = append(result.Array, TextItem(text))
			}
		case "at":
			var item AtItem
			switch v := jsonData["qq"].(type) {
			case string:
				if v == "all" {
					item = AtAll
				} else {
					qq, err := strconv.ParseInt(v, 10, 64)
					if err != nil {
						continue
					}
					item = AtItem(qq)
				}
			case float64:
				item = AtItem(v)
			}
			result.Array = append(result.Array, item)
		case "face":
			var item FaceItem
			switch v := jsonData["id"].(type) {
			case string:
				id, err := strconv.ParseInt(v, 10, 16)
				if err != nil {
					continue
				}
				item = FaceItem(id)
			case float64:
				item = FaceItem(v)
			}
			result.Array = append(result.Array, item)
		case "image":
			if url, ok := jsonData["url"].(string); ok {
				result.Array = append(result.Array, &ImageItem{
					Url: url,
				})
			}

		// case "record":
		// 	if path, ok := jsonData["path"].(string); ok {
		// 		result.Array = append(result.Array, &recordItem{
		// 			Path: path,
		// 		})
		// 	}
		// case "file":
		// 	result.Array = append(result.Array, &fileItem{
		// 		Data: string(msg.Data),
		// 	})
		// case "forward":
		// 	result.Array = append(result.Array, &forwardItem{
		// 		Data: string(msg.Data),
		// 	})
		// case "json":
		// 	result.Array = append(result.Array, &jsonItem{
		// 		Data: string(msg.Data),
		// 	})
		default:
			return nil
		}
	}
	return &result
}

func parseEmojiLikeNotice(raw *api.EmojiLikeNotice) *EmojiReaction {
	if raw == nil || len(raw.Likes) == 0 {
		return nil
	}

	notice := &EmojiReaction{
		GroupID:   raw.GroupID,
		UserID:    raw.UserID,
		MessageID: raw.MessageID,
		IsAdd:     raw.IsAdd,
		Count:     raw.Likes[0].Count,
	}

	id, err := strconv.ParseUint(raw.Likes[0].EmojiID, 10, 64)
	if err != nil {
		return nil
	}
	notice.FaceID = id

	if id < 1000 {
		notice.IsQFace = true
	} else {
		notice.IsQFace = false
		notice.EmojiRune = rune(id)
	}

	return notice
}

func parseRecallNotice(raw *api.RecallNotice) *RecallNotice {
	return &RecallNotice{
		ChatType:   Group,
		GroupID:    raw.GroupID,
		UserID:     raw.UserID,
		OperatorID: raw.OperatorID,
		MessageID:  raw.MessageID,
		Time:       raw.Time,
	}
}

func parsePokeNotify(raw *api.PokeNotify) *PokeNotify {
	if raw == nil {
		return nil
	}
	notify := &PokeNotify{
		ChatType: Group,
		GroupID:  raw.GroupID,
		SenderID: raw.UserID,
		TargetID: raw.TargetID,
	}

	if notify.GroupID == 0 {
		notify.ChatType = Private
	}

	if list, ok := raw.RawInfo.([]any); ok {
		var txts []string
		for _, item := range list {
			if m, ok := item.(map[string]any); ok {
				if v, ok := m["txt"]; ok {
					if s, ok := v.(string); ok {
						txts = append(txts, s)
					}
				}
			}
		}
		if len(txts) > 0 {
			notify.Action = txts[0]
		}
		if len(txts) > 1 {
			notify.Suffix = txts[1]
		}
	}
	return notify
}