package server

import (
	"strings"
	"git.citrons.xyz/metronode/classic"
)

func processChatMessage(message string) []classic.Packet {
	var (
		packets []classic.Packet
		in = strings.NewReader(message)
		line strings.Builder
		word strings.Builder
		color byte = 'f'
	)
	endLine := func() {
		if line.Len() == 0 {
			return
		}
		packet := &classic.Message {
			Message: classic.PadString(line.String()),
		}
		packets = append(packets, packet)
		line.Reset()
		line.WriteString("&7> &" + string([]byte{color}))
	}
	endWord := func() {
		if line.Len() + word.Len() > 64 {
			endLine()
		}
		line.WriteString(word.String())
		word.Reset()
	}
	for in.Len() > 0 {
		b, _ := in.ReadByte()
		if b == '%' {
			b = '&'
		}
		if b == '&' {
			endWord()
			word.WriteByte(b)
			b, _ = in.ReadByte()
			if (b >= '0' && b <= '9') || (b >= 'a' && b <= 'f') {
				color = b
			}
			word.WriteByte(b)
			endWord()
			continue
		}
		if b == ' ' {
			endWord()
			if line.Len() > 0 {
				word.WriteByte(b)
				endWord()
			}
			continue
		}
		word.WriteByte(b)
		if word.Len() >= 58 {
			endWord()
		}
	}
	endWord()
	endLine()
	return packets
}