package emojis

import (
	_ "embed"
	"encoding/json"

	"maunium.net/go/mautrix/bridgev2/networkid"

	"go.mau.fi/mautrix-telegram/pkg/connector/ids"
)

//go:embed unicodemojipack.json
var unicodemojiPackJSON []byte

var unicodemojiPack = map[string]int64{}
var reverseUnicodemojiPack = map[int64]string{}

func init() {
	if err := json.Unmarshal(unicodemojiPackJSON, &unicodemojiPack); err != nil {
		panic("Failed to unmarshal unicodemojipack")
	}

	for k, v := range unicodemojiPack {
		reverseUnicodemojiPack[v] = k
	}
}

// ConvertKnownEmojis converts known document IDs from the unicode emoji pack
// to the corresponding unicode string and returns the remaining IDs.
func ConvertKnownEmojis(emojiIDs []int64) (result map[networkid.EmojiID]string, remaining []int64) {
	result = map[networkid.EmojiID]string{}
	for _, e := range emojiIDs {
		if v, ok := reverseUnicodemojiPack[e]; ok {
			emojiID := ids.MakeEmojiIDFromDocumentID(e)
			result[emojiID] = v
		} else {
			remaining = append(remaining, e)
		}
	}
	return
}