package sets

func emojiGenerateFromUnicodeRange(start, end rune) []int {
	var emojis []int
	for emoji := start; emoji <= end; emoji++ {
		emojis = append(emojis, int(emoji))

		// Variations with variation selectors
		for vs := rune(0xFE00); vs <= rune(0xFE0F); vs++ {
			combined := []rune{emoji, vs}
			combinedStr := string(combined)
			emojis = append(emojis, int([]rune(combinedStr)[0]))
		}

		// Variations with skin tone modifiers
		for st := rune(0x1F3FB); st <= rune(0x1F3FF); st++ {
			combined := []rune{emoji, st}
			combinedStr := string(combined)
			emojis = append(emojis, int([]rune(combinedStr)[0]))
		}
	}
	return emojis
}

func Emoji() (dict []int) {
	// Unicode ranges for emojis
	ranges := [][]rune{
		{0x1F600, 0x1F64F}, // Emoticons
		{0x1F300, 0x1F5FF}, // Miscellaneous Symbols and Pictographs
		{0x1F900, 0x1F9FF}, // Supplemental Symbols and Pictographs
		{0x1F1E6, 0x1F1FF}, // Enclosed Alphanumeric Supplement (for flags)
		{0x1F680, 0x1F6FF}, // Transport and Map Symbols
		{0x2600, 0x26FF},   // Miscellaneous Symbols
		{0x2700, 0x27BF},   // Dingbats
		{0xFE00, 0xFE0F},   // Variation Selectors
		{0x1F1E6, 0x1F1FF}, // Regional Indicator Symbols
		{0xE0030, 0xE0039}, // Variation Selectors Supplement
	}

	for _, r := range ranges {
		dict = append(dict, emojiGenerateFromUnicodeRange(r[0], r[1])...)
	}

	return
}