5e OGL Companion, multiple ammo sources

var handleammo = function (msg,character,player) {
    if(msg.content.indexOf("ammo=") === -1) {
        // UNABLE TO FIND AMMO
        return;
    }
    var ammostr;
    if(msg.content.indexOf("{{charname=") > -1) {
        ammostr = (msg.content.split("ammo=")[1]||'').split(" {{charname=")[0];
    }
    else {
        ammostr = (msg.content.split("ammo=")[1]||'').split(" charname")[0];
    }
	_.each(ammostr.split(","), function(ammofull) {
		ammofull = ammofull.trim();
		var ammoid = "";
		var ammoname = "";
		// check to see if more than one ammo is used
		var ammouseregex = /[[].*]/;
		var ammousestr = ammouseregex.exec(ammofull) ? ammofull.match(ammouseregex)[0] : null;
		ammofull = ammofull.replace(ammousestr,"");
		var ammouses = ammousestr ? parseInt(ammousestr.replace("[","").replace("]")) : 1;
		// get the name and id for the ammo resource
		if(ammofull.substring(0,1) === "-") {
			// ammofull was just the id for the resource
			ammoid = ammofull;
			var ammoresource = findObjs({type: 'attribute', characterid: character.id, id: ammoid}, {caseInsensitive: true})[0];
			if(ammoresource) {
				ammoname = getAttrByName(character.id, ammoresource.get("name") + "_name");
			}
		}
		else if(ammofull.indexOf("|") > -1) {
			// ammofull contained the id for the resource
			var temp = ammofull.split("|");
			ammoid = temp[1];
			ammoname = temp[0];
		}
		else {
			// no id was found for the resource
			ammoname = ammofull;
			var resources = filterObjs(function(obj) {    
				return obj.get("type") === "attribute"
					&& obj.get("characterid") === character.id
					&& (obj.get("current") + "").toLowerCase() === ammofull.toLowerCase()
					&& obj.get("name").indexOf("resource") > -1;
			});
			if(!resources[0]) {
				log("UNABLE TO FIND RESOURCE");
				return;
			}
			var resname = resources[0].get("name").replace("_name","");
			ammoid = findObjs({type: 'attribute', characterid: character.id, name: resname}, {caseInsensitive: true})[0].id;
			var atkid = null;
			var reg = new RegExp("repeating_attack_(.+)_attack_dmg");
			var match = reg.exec(msg.content);
			if(match) {
				atkid = match[1];
			}
			else {
				var atkname = (msg.content.split("{{rname=")[1]||'').split("}}")[0];
				var attacks = filterObjs(function(obj) {
					return obj.get("type") === "attribute"
						&& obj.get("characterid") === character.id
						&& obj.get("current") === atkname;
			   });
			   reg = new RegExp("repeating_attack_(.+)_atkname");
			   _.each(attacks, function(atk) {
                   match = reg.exec(atk.get("name"));
				   if(match) {
					   atkid = match[1];
				   }
			   });
			}
			if(!atkid) {
			   log("UNABLE TO FIND ATTACK ID");
			   return;
			}
			var atkammo = findObjs({type: 'attribute', characterid: character.id, name: "repeating_attack_" + atkid + "_ammo"}, {caseInsensitive: true})[0];
			var value = ammousestr
				? atkammo.get("current").replace(ammoname+ammousestr, ammoname+ammousestr+"|"+ammoid)
				: atkammo.get("current").replace(ammoname, ammoname + "|" + ammoid);
			atkammo.set({current: value});
		}
		ammoresource = findObjs({type: 'attribute', characterid: character.id, id: ammoid}, {caseInsensitive: true})[0];
		if(ammoresource) {
			ammoresource.set({current: ammoresource.get("current") - ammouses});
			var ammoitemid = getAttrByName(character.id, ammoresource.get("name") + "_itemid");
			if(ammoitemid) {
				var ammoitem = findObjs({type: 'attribute', characterid: character.id, name: "repeating_inventory_" + ammoitemid + "_itemcount"}, {caseInsensitive: true})[0];
				if(ammoitem) {
					ammoitem.set({current: ammoitem.get("current") - 1});
				}
				var ammoweight = findObjs({type: 'attribute', characterid: character.id, name: "repeating_inventory_" + ammoitemid + "_itemweight"}, {caseInsensitive: true})[0];
				var totalweight = findObjs({type: 'attribute', characterid: character.id, name: "weighttotal"}, {caseInsensitive: true})[0];
				if(ammoweight && totalweight) {
					totalweight.set({current: totalweight.get("current") - ammoweight.get("current")});
				}
			}
			var output = ammoname + ":\n" + ((ammoresource.get("current") >= 0) ? ammoresource.get("current")  + " LEFT" : "OUT OF AMMO");
			var formattedOutput = (getAttrByName(character.id, "wtype") === "" ? "" : "/w gm ") + "&{template:desc} {{desc=" + output + "}}";
			if(ammoresource.get("current") <= 0 || state.FifthEditionOGLbyRoll20.ammotracking !== "quiet") {
                sendChat(msg.who, formattedOutput);
            }
		}
	});
};