fit-file-parser/dist/helper.js

Parse your .FIT files easily, directly from JS (Garmin, Polar, Suunto)

export function mapDataIntoLap(inputLaps, lapKey, data) {
    const laps = [...inputLaps];
    let index = 0;
    for (let i = 0; i < laps.length; i++) {
        const nextLap = laps[i + 1];
        const tempData = [];
        const nextLapStartTime = nextLap
            ? new Date(nextLap.start_time).getTime()
            : null;
        for (let j = index; j < data.length; j++) {
            const row = data[j];
            if (nextLap && nextLapStartTime) {
                const timestamp = new Date(row.timestamp || row.start_time).getTime();
                if (nextLapStartTime > timestamp) {
                    tempData.push(row);
                }
                else if (nextLapStartTime <= timestamp) {
                    index = j;
                    break;
                }
            }
            else {
                tempData.push(row);
            }
        }
        if (!laps[i][lapKey]) {
            laps[i][lapKey] = tempData;
        }
    }
    return laps;
}
export function mapDataIntoSession(inputSessions, laps) {
    const sessions = [...inputSessions];
    let lapIndex = 0;
    for (let i = 0; i < sessions.length; i++) {
        const nextSession = sessions[i + 1];
        const tempLaps = [];
        const nextSessionStartTime = nextSession
            ? new Date(nextSession.start_time).getTime()
            : null;
        for (let j = lapIndex; j < laps.length; j++) {
            const lap = laps[j];
            if (nextSession && nextSessionStartTime) {
                const lapStartTime = new Date(lap.start_time).getTime();
                if (nextSessionStartTime > lapStartTime) {
                    tempLaps.push(lap);
                }
                else if (nextSessionStartTime <= lapStartTime) {
                    lapIndex = j;
                    break;
                }
            }
            else {
                tempLaps.push(lap);
            }
        }
        if (!sessions[i].laps) {
            sessions[i].laps = tempLaps;
        }
    }
    return sessions;
}