Number.prototype.fixedDown = function(digits) {
  var re = new RegExp("(\\d+\\.\\d{" + digits + "})(\\d)"),
      m = this.toString().match(re);
  return m ? parseFloat(m[1]) : this.valueOf();
};

//{ $and: [{ totalSprayTime: null, totalSprayed : { $gt: 1 }   }]}
var apps = db.applications.find({ $and: [{ totalFlightTime: null, totalSprayed : { $gt: 1 }   }]}).toArray();
var app;
for(var k = 0; k < apps.length; k++) {
    app = apps[k];
    var totalSprTime = 0, totalTurn = 0, totalTime = 0;
    var files = db.appfiles.find({ appId: app._id }).toArray(); 
            
    for(var i = 0; i < files.length; i++) {
        var turnTime = { line: null, at: null, nextOff: false, total: 0 };        
        var timeDif = 0, prevTime = prevSprTime = -999, record;
        var details = db.application_details.find({ fileId: files[i]._id }, { _id: 0, gpsTime: 1, llnum: 1, sprayStat: 1 }).sort({ gpsTime: 1 }).toArray();
        
        for(var j = 0; j < details.length; j++) {
            record = details[j];
            
            // Calculate total flight time        
            if (prevTime != -999 && prevTime !== record.gpsTime) {
              timeDif = record.gpsTime - prevTime;
              if (timeDif < 0) {
                if (Math.abs(timeDif) >= 0.1)
                  timeDif = (86400 - prevTime) + record.gpsTime;           
              }
              if (timeDif > 0 && timeDif <= 120)
                totalTime += timeDif;
            }
            prevTime = record.gpsTime;            
                
            // Calculate spray time (secs)
            if (record.sprayStat > 0) {
              if (prevSprTime != -999 && record.sprayStat !== 3) {
                timeDif = record.gpsTime - prevSprTime;
                if (timeDif > 0 && timeDif <= 120)
                  totalSprTime += timeDif;
              }
              prevSprTime = record.gpsTime;
            }

            if (!(/.asc/i.test(files[i].name))) {
              // Calculate turn time (secs)
              if (null === turnTime.line && !record.sprayStat) {
                turnTime.line = record.llnum;
                turnTime.at = record.gpsTime;
                continue;
              }
              if (turnTime.line != record.llnum) {
                if (record.sprayStat) {
                  timeDif = record.gpsTime - turnTime.at;
                  if (timeDif < 0) {
                    if (Math.abs(timeDif) >= 0.1)
                        timeDif = (86400 - turnTime.at) + record.gpsTime;
                  }
                  if (timeDif >= 5 && timeDif <= 120)
                    turnTime.total += timeDif;

                  turnTime.line = record.llnum;
                  turnTime.nextOff = true;
                }
              }
              else {
                if (!record.sprayStat && turnTime.nextOff) {
                  turnTime.at = record.gpsTime;
                  turnTime.nextOff = false;
                } else if (record.sprayStat) {
                  turnTime.nextOff = true;
                }
              }
            }
        }
       
        if (!isNaN(turnTime.total))
            totalTurn += turnTime.total;
    }
    // print ('app: ' + app._id + ', totalSpray: ' + totalSprTime + ', totalTurn: ' + totalTurn);
    // Update the app with the calculated totals of: sprayTime and turnTurnTime
    db.applications.updateOne({ _id: app._id }, 
        { $set : { totalSprayTime: totalSprTime.fixedDown(2), totalTurnTime: totalTurn.fixedDown(2), totalFlightTime: totalTime.fixedDown(2) } });
}

print ("DONE updating appStats :) for " + apps.length + " apps")