//----------------------------------------------------------------------------------------------------
// Radio format: assembles the chat line, colouring the sender's tag/name/text through
// custom-chatcolors when it is loaded. Colour mapping mirrors custom-chatcolors.sp.
//----------------------------------------------------------------------------------------------------

// Same prefix Leader3 puts on its own chat lines (Leader3.sp PREFIX).
#define LEADER_PREFIX "\x07FF00E1[Leader] \x01"

// ent_idx = author makes \x03 render as the author's team colour; the chat flag must be
// true (the client's non-chat path mishandles raw coloured text); BLOCKHOOKS keeps chat
// processors (CCC included) from re-processing our synthetic line.
void Radio_SendChat(int author, const int[] players, int playersNum, const char[] text)
{
	Handle say = StartMessage("SayText2", players, playersNum, USERMSG_RELIABLE | USERMSG_BLOCKHOOKS);
	BfWriteByte(say, author);
	BfWriteByte(say, 1);
	BfWriteString(say, text);
	EndMessage();
}

static void ColorCode(int color, bool alpha, char[] out, int maxlen)
{
	switch (color)
	{
		case COLOR_TEAM: strcopy(out, maxlen, "\x03");
		case COLOR_CGREEN: strcopy(out, maxlen, "\x04");
		case COLOR_OLIVE: strcopy(out, maxlen, "\x05");
		case COLOR_NULL: out[0] = '\0';
		case COLOR_NONE: strcopy(out, maxlen, "\x01");
		default:
		{
			if (alpha)
				FormatEx(out, maxlen, "\x08%08X", color);
			else
				FormatEx(out, maxlen, "\x07%06X", color);
		}
	}
}

void Format_RadioLine(int client, bool leader, const char[] phrase, char[] out, int maxlen)
{
	char sender[MAX_NAME_LENGTH + 96];

	bool useCCC = g_bCCC && GetFeatureStatus(FeatureType_Native, "CCC_GetColor") == FeatureStatus_Available;

	if (useCCC)
	{
		// CCC stores tags in 64-byte buffers (custom-chatcolors.sp g_sTag) and a processed
		// tag can carry an inline \x07RRGGBB code per character, so match CCC's size.
		char tag[64], tagCode[16], nameCode[16];
		bool alpha;

		CCC_GetTag(client, tag, sizeof(tag));

		alpha = false;
		ColorCode(CCC_GetColor(client, CCC_TagColor, alpha), alpha, tagCode, sizeof(tagCode));

		alpha = false;
		int nameColor = CCC_GetColor(client, CCC_NameColor, alpha);

		if (nameColor == COLOR_NULL && tag[0])
		{
			// CCC name colour "X" (COLOR_NULL) erases the name so only the tag shows
			FormatEx(sender, sizeof(sender), "%s%s", tagCode, tag);
		}
		else
		{
			ColorCode(nameColor, alpha, nameCode, sizeof(nameCode));

			if (tag[0])
				FormatEx(sender, sizeof(sender), "%s%s%s%N", tagCode, tag, nameCode, client);
			else
				FormatEx(sender, sizeof(sender), "%s%N", nameCode, client);
		}
	}
	else
	{
		FormatEx(sender, sizeof(sender), "\x03%N", client);
	}

	char location[64];
	GetEntPropString(client, Prop_Send, "m_szLastPlaceName", location, sizeof(location));

	// Leading \x01 guards the CS:S quirk where a colour code as the very first byte may not
	// render; the \x01 before (RADIO): resets the line to the default orange, so the phrase
	// renders like a stock radio message regardless of the player's CCC chat colour.
	if (location[0])
	{
		FormatEx(out, maxlen, "\x01%s%s \x01@ %s (RADIO): %s",
			leader ? LEADER_PREFIX : "", sender, location, phrase);
	}
	else
	{
		FormatEx(out, maxlen, "\x01%s%s \x01(RADIO): %s",
			leader ? LEADER_PREFIX : "", sender, phrase);
	}
}