import * as dt from './datetime.js'
import * as utils from "./chart_utilities.js"
import { showChart, loadAll } from './showcharts.js'
import * as mapu from './map_utilities.js'

const colorscale = ['#d73027','#fc8d59','#fee08b','#ffffbf','#d9ef8b','#91cf60','#1a9850', '#808080'];
const grades = [  10,   5,   2,   1,  0.5, 0.2, 0.1, -999];
const cpms =   [1482, 741, 296, 148, 74,  30,  15,   -999];

const sv_factor = {'SBM-20': 1 / 2.47, 'SBM-19': 1 / 9.81888, 'Si22G': 0.081438};

let showOnlySi22G = false;

export function getColor(d) {
    let erg = d3.scaleLinear()
        .domain([0.05,        0.1,     0.2,      0.5,            5])
        .range(["#267A45", "#66FA5F", "#F8Fc00","#FF0000","#9000FF"])
        .clamp(true);
    return d < -1 ? '#9ECDEA' : d==-1 ? '#7F7F7F' : d==0 ? '#333333' : erg(d);
}


/******************************************************
     * buildMarkers
     *
     * fetch data for MArkers from 'mapdata' and create
     * all the markers, that are visibile within bounds
     * and plot them on the map.
     * Use the ClusterGroup-Library to cluster the markers
     *
     * params:
     *      bounds          find markers within this bounds
     * return:
     *      all markers plotted on map
     *******************************************************/
export async function buildMarkers(params, mpp) {
    const url = mpp.APIURL + `type=radioactivity&box=${mpp.bounds.toBBoxString()}`
    let sensors = await utils.fetchfromserver(url)
    if (!sensors.err) {
//        if (markersAll) {
//            mpp.map.removeLayer(markersAll);
//        }
        let markers = L.markerClusterGroup({
            spiderfyOnMaxZoom: true,
            showCoverageOnHover: false,
            zoomToBoundsOnClick: true,
//            disableClusteringAtZoom: 14,
            iconCreateFunction: function (cluster) {
                let mymarkers = cluster.getAllChildMarkers();
                let color = getMedian(mymarkers);           // calc median of markers in cluster and use that color
    //                return L.divIcon({ html: '<b>' + cluster.getChildCount() + '</b>' });
                return new L.Icon({
                    iconUrl: buildIcon(color, cluster.getChildCount()),
                    iconSize: [35, 35]
                });
            }
        });

        for (let x of sensors.values) {
            if (x.location == undefined) {                   // if there is no location defined ...
                continue;                                    // ... skip this sensor
            }                                               // otherwise create marker
            if ((x.name != "Radiation Si22G") && showOnlySi22G) {
                continue;
            }
            if ((params.weeks > 0) && (x.weeks > params.weeks)) {
            continue
            }
            let uSvph = x.value < 0 ? -1 : x.value / 60 * sv_factor[x.name.slice(10)];
            let curcolor = getColor(uSvph > 0 ? x.indoor ? -2 : uSvph : uSvph);
    
            let marker = L.marker([x.location[1], x.location[0]], {
                name: x.id,
                icon: new L.Icon({
                    iconUrl: buildIcon(curcolor),
                    iconSize: [35, 35]
                }),
                value: x.value,
                mSvph: uSvph,
                url: '/' + x.id,
                rohr: x.name.slice(10),
                indoor: x.indoor,
                lastseen: dt.formatISODate(x.lastseen)
            })            
            .on('click', e => onMarkerClick(e, true, sensors.popuptxt, params, mpp))        // define click- and
            markers.addLayer(marker);
        }
        mpp.map.addLayer(markers);
        return sensors.lastdate
    } else {
        utils.showError(sensors.err)
    }
}

/*
        let pos = map.latLngToLayerPoint(marker.getLatLng()).round();

        marker.setZIndexOffset(100 - pos.y);
        // if clicked on the marker fill popup with address and click function
        marker.on('click', async function () {
            let addr = await holAddress(marker);
            marker.setPopupContent((getPopUp(marker,addr)));
            $('#btnshwgrafic').click(() => {
                map.closePopup();
                // if(window.matchMedia("(orientation:portrait").matches) {
                //     showError(5,"goto Landscape")
                // } else {
                showGrafik(clickedSensor);
//                    }
            });
        });
        marker.bindPopup(`Loading adresse data`); // and bind the popup text
        if (marker.options.value != -2) {
            markersAll.addLayer(marker);
        } else {
            console.log(`Too old Sensor: ${marker.options.name}`);
        }
    }
    mpp.map.addLayer(markersAll);
}
*/

function buildIcon(color, n, indoor) {
    let x = 100;
    if (n < 10) {
        x = 200;
    } else if (n < 100) {
        x = 150;
    }
    let txtColor = "black";
    if (color == colorscale[5]) {
        txtColor = "white"
    }
    let icon = '<svg xmlns="http://www.w3.org/2000/svg" width="600" height="600">' +
        '<circle cx="300" cy="300" r="300" fill="' + color + '"/>' +
        '<circle cx="300" cy="300" r="50"/>' +
        '<path stroke="#000" stroke-width="175" fill="none" stroke-dasharray="171.74" d="M382,158a164,164 0 1,1-164,0"/>';
    if (n !== undefined) {
        icon +=
            '<text id="marker_text" x="' + x + '" y="400" font-size="1500%" font-family="Verdana,Lucida Sans Unicode,sans-serif" fill="white">' + n + '</text>';
    }
    icon += '</svg>';
    return encodeURI("data:image/svg+xml," + icon).replace(new RegExp('#', 'g'), '%23');
}

// With all Markers in cluster (markers) calculate the median
// of the values. With this median fetch the color and return it.
// If there are 'offline' sensors (value == -1) strip then before
// calculating the median. If there are only offline sensor, return
// color of value==-1 (dark gray).
function getMedian(markers) {
    markers.sort(function (a, b) {                        // first sort, the lowest first
        let y1 = a.options.mSvph;
        let y2 = b.options.mSvph;
        if (y1 < y2) {
            return -1;
        }
        if (y2 < y1) {
            return 1;
        }
        return 0;
    });
    // console.log(markers);
    let i = 0;                                            // now find the 'offlines' (mSvph == -1)
    for (i = 0; i < markers.length; i++) {
        if (markers[i].options.mSvph > 0) {
            break;
        }
    }
    markers.splice(0, i);                                // remove these from array
    let lang = markers.length;
    if (lang > 1) {                                     //
        if ((lang % 2) == 1) {                          // uneven ->
            return getColor(markers[(Math.floor(lang / 2))].options.mSvph);  // median is in the middle
        } else {                                        // evaen ->
            lang = lang / 2;            // median is mean of both middle mSvphs
            // console.log(lang);
            let wert = (markers[lang - 1].options.mSvph +
                markers[lang].options.mSvph) / 2;
            return getColor(wert);
        }
    } else if (lang == 1) {                             // only one marker -> return its color
        return getColor(markers[0].options.mSvph);
    }
    return getColor(-1);                            // only offlines
}

async function bauPopupText(item, txts) {
    let addr = ''
    let offlinetext = `
<tr><td colspan="2"><span style="color:red;">${txts.offline}</span></td></tr>
<tr><td>${txts.lastseen}:</td><td>${item.lastseen}</td></tr>`

    let normaltext = `
<tr></tr><tr><td>cpm:</td><td>${item.value}</td></tr>
<tr></tr><tr><td>µSvph:</td><td>${item.mSvph}</td></tr>`
    let popuptext = `
<div id="infoTitle">
<h4>${txts.sensor}: ${item.name}</h4>
<div class="addr">${addr}</div>
<div id="infoTable">
    <table>
        <tr><td colspan="2"><span style="color:limegreen;">${item.indoor==1 ? "indoor" : ""}</span></td></tr>
        ${item.value < 0 ? offlinetext : normaltext}
    </table>
    <div id="infoBtn">
        <a href="#" class="speciallink">${txts.showchart}</a>
    </div>
</div>
</div>`
return popuptext
}

async function onMarkerClick(e, click, txts, params, mpp) {
    let item = e.target.options;
    let popuptext = await bauPopupText(item, txts)
    e.target.bindPopup(popuptext).openPopup();                               // show the popup
    let addr = await utils.addAddress(item.name)
    document.querySelector('#infoTitle .addr').innerHTML = `${addr.street}<br />${addr.plz} ${addr.city}`
    let link = document.querySelector('.speciallink')
    link.addEventListener('click', async function (ev) {
        console.log(`Event clicked: ${mpp.clickedSensor}`)
        params.sid = item.name
        let ok = await showChart(params, 'live', 'dlive')
        if (ok) {
            let triggerEl = document.querySelector(`#livetab`)
            bootstrap.Tab.getInstance(triggerEl).show() // Select tab by name
            utils.setCurrentTab('livetab')
            params.center = [e.latlng.lat, e.latlng.lng]
            mpp.map.setView([e.latlng.lat, e.latlng.lng]);
            ev.preventDefault()
            await loadAll(params)
        }
    })
}