var trackingdata = null;
let indexes

function composeTimestamp(servertime){
    var composed;
    composed = servertime.slice(11,25).split(':').join("").split('.').join("");
    return composed;
}

function findBestTimeMatch(num, arr) {
    var mid;
    var lo = 0;
    var hi = arr.length - 1;
    while (hi - lo > 1) {
        mid = Math.floor ((lo + hi) / 2);
        if (arr[mid] < num) {
            lo = mid;
        } else {
            hi = mid;
        }
    }
    if (num - arr[lo] <= arr[hi] - num) {
        return [arr[lo], lo];
    }
    return [arr[hi], hi];
}

function findSerialDataIndex(tcpdataList, serialdataList) {
    let allSerialTimes = []

    serialdataList.forEach(sensordata => {
        if (!(sensordata.Speed === 0) && !(sensordata.HAcc === 0)) {
            allSpeedsSerial.push(sensordata.Speed)
            allAccSerial.push(sensordata.HAcc)
            if(!(sensordata.Position[1] === 0) && !(sensordata.Position[0] === 0)){
                allSerialCoords.push([sensordata.Position[1], sensordata.Position[0]])
            }
            let serialTimestamp = composeTimestamp(sensordata.Timestamp)
            allSerialTimes.push(serialTimestamp)
        }
    })

    tcpdataList.forEach(sensordata => {
        if (!(sensordata.Speed === 0) && !(sensordata.HAcc === 0)) {
            let tcpTimestamp = composeTimestamp(sensordata.Timestamp)
            let index = findBestTimeMatch(tcpTimestamp, allSerialTimes)[1]

            indexes.push(index)
        }
    })
}

window.addEventListener("load", function(evt) {
    //------------------------Buttons------------------------------

    var trackings = null;
    document.getElementById("messungladen").onclick = function(evt) {
        fetch('http://localhost:3011/trackings/', { method: 'GET'}).then(results => {
            return results.json()
        }).then(r => {
            console.log(r)
            if (!'data' in r) {
                return
            }
            trackings = r.data
            let sel = document.getElementById("meas")
            sel.innerHTML = ''
            r.data.forEach(tracking => {
                console.log(tracking)
                var option = document.createElement("option");
                option.text = tracking.TimeCreated + " Size: " + tracking.Size
                sel.add(option)
            })
            sel.disabled = false
            document.getElementById("replaystarten").disabled = false

        })
    };

    document.getElementById("replaystarten").onclick = function(evt) {
        indexes = []
        allSpeedsSerial = []
        allAccSerial = []
        allSerialCoords = []

        let sel = document.getElementById("meas")
        console.log(trackings[sel.selectedIndex].UUID)
        fetch(`http://localhost:3011/trackings/${trackings[sel.selectedIndex].UUID}`, { method: 'GET'}).then(results => {
            return results.json()
        }).then(r => {
            console.log(r.data.Data)
            console.log(r.data)
            // if('SOURCE_TCP' in r.data.Data && r.data.Data.SOURCE_TCP.length > 0 && 'SOURCE_SERIAL' in r.data.Data && r.data.Data.SOURCE_SERIAL.length > 0){
            findSerialDataIndex(r.data.Data.SOURCE_TCP, r.data.Data.SOURCE_SERIAL)
            //     addDistances(r.data.Data.SOURCE_TCP, r.data.Data.SOURCE_SERIAL)
            // }
            if ('SOURCE_TCP' in r.data.Data && r.data.Data.SOURCE_TCP.length > 0) {
                updateMapTCPbulk(r.data.Data.SOURCE_TCP)
                addTCPSpeedData(r.data.Data.SOURCE_TCP)
            }
            if ('SOURCE_SERIAL' in r.data.Data && r.data.Data.SOURCE_SERIAL.length > 0) {
                updateMapSERIALbulk(r.data.Data.SOURCE_SERIAL)
                addSerialSpeedData()
            }
            addDistancesNew(prepareForDistanceCalc(r.data.Data))

        })

    }
});

function prepareForDistanceCalc(data) {
    if('SOURCE_TCP' in data && data.SOURCE_TCP.length > 0 && 'SOURCE_SERIAL' in data && data.SOURCE_SERIAL.length > 0) {
        let sensorPoints = [];
        data.SOURCE_TCP.forEach(element => {
            // let ts = Date.parse(element.Timestamp)
            if (element.Position[0] !== 0 && element.Position[1] !== 0) {
                sensorPoints.push({
                    differenceMs: Number.MAX_VALUE,
                    tcp: element,
                    ser: null,
                    speed: null
                })
            }
        })
        sensorPoints.forEach((el, index, arr) => {
            let tcpTS = Date.parse(el.tcp.Timestamp)
            data.SOURCE_SERIAL.forEach(serElement => {
                let serTS = Date.parse(serElement.Timestamp)
                if (Math.abs(tcpTS - serTS) < el.differenceMs && serElement.Position[0] !== 0 && serElement.Position[1] !== 0) {
                    el.differenceMs = tcpTS - serTS
                    arr[index].ser = serElement
                }
            })
        })
        // filter differences with more than 50 ms
        let newSensorPoints = sensorPoints.filter(el => {
            return Math.abs(el.differenceMs) < 50
        })
        console.log("SENSORPOINTs", newSensorPoints)
        return newSensorPoints
    }
    return null
}