Reversewigo solver ✓🐵

Reversewigo solver ✓🐵 - solve reverse wherigo automatically on cache page. Solver code originated from Rick Rickhardson's reverse-wherigo source (public domain). Also, creates show source button for mystery cacahes.
19.01.2021 itibariyledir. En son verisyonu görün.
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// ==UserScript==
// @name        Reversewigo solver ✓🐵
// @namespace    http://tampermonkey.net/
// @version      0.08
// @description  Reversewigo solver ✓🐵  - solve reverse wherigo automatically on cache page. Solver code originated from Rick Rickhardson's reverse-wherigo source (public domain). Also, creates show source button for mystery cacahes.
// @author       [email protected]
// @include      https://www.geocaching.com/geocache/*
// ==/UserScript==

// placeholder for calculated reverse wherigo coordinates
// used by pollDOM to update them to popup dialog
// TODO: definitely not the best practise but a quick hack that seems to work (for now)
var newCoordinates = "";


/* async */ function dd2dm(latdd, londd) {
    var lat = latdd;
    var lon = londd;

    var latResult, lonResult, dmsResult;

    lat = parseFloat(lat);
    lon = parseFloat(lon);

    latResult = /* await */ lat_dd2dm(lat);
    lonResult = /* await */ lon_dd2dm(lon);
 
    // Joining both variables and separate them with a space.
    dmsResult = latResult + ' ' + lonResult;

    // Return the resultant string
    return { result: dmsResult, lat: latResult, lon: lonResult };
}

/* async */ function lat_dd2dm(val) {
    var valDeg, valMin, result;

    val = Number(val);
    result = (val >= 0)? 'N' : 'S';
    result += " ";

    val = Math.abs(val);
    valDeg = Math.floor(val);

    if( valDeg < 10 ) {
    result += "0" + valDeg;
    }
    else {
    result += valDeg;
    }
    result += "\xB0";
    result += " ";

    valMin = ((val - valDeg) * 60).toFixed(3);
    if( valMin < 10) {
        result += "0" + valMin;
    }
    else {
        result += valMin;
    }
    return result;
}

/* async */ function lon_dd2dm(val) {
    var valDeg, valMin, result;

    val = Number(val);

    result = (val >= 0)? 'E' : 'W';
    result += " ";

    val = Math.abs(val);
    valDeg = Math.floor(val);

    if( valDeg < 10 ) {
        result += "00" + valDeg;
    }
    else if( valDeg < 100) {
        result += "0" + valDeg;
    }
    else {
        result += valDeg;
    }
    result += "\xB0";
    result += " ";

    valMin = ((val - valDeg) * 60).toFixed(3);
    if( valMin < 10) {
        result += "0" + valMin;
    }
    else {
        result += valMin;
    }
    return result;
}

/* async */ function code2LatLon(varA, varB, varC) {
    let latSign, lonSign, lonValue, latValue;

    //
    if ((varA % 1000 - varA % 100) / 100 == 1) {
        latSign = 1;
        lonSign = 1;
    }
    else if ((varA % 1000 - varA % 100) / 100 == 2) {
        latSign = -1;
        lonSign = 1;
    }
    else if ((varA % 1000 - varA % 100) / 100 == 3) {
        latSign = 1;
        lonSign = -1;
    }
    else if ((varA % 1000 - varA % 100) / 100 == 4) {
        latSign = -1;
        lonSign = -1;
    }

    if ( ((varC % 100000 - varC % 10000) / 10000 + (varC % 100 - varC % 10) / 10) % 2 === 0) {
        // A4 B2  B5 C3 A6 C2 A1
        latValue = Number(((varA % 10000 - varA % 1000) / 1000 * 10 + (varB % 100 - varB % 10) / 10 + (varB % 100000 - varB % 10000) / 10000 * 0.1 + (varC % 1000 - varC % 100) / 100 * 0.01 + (varA % 1000000 - varA % 100000) / 100000 * 0.001 + (varC % 100 - varC % 10) / 10 * 1.0E-4 + varA % 10 * 1.0E-5));
    }
    else if ( ((varC % 100000 - varC % 10000) / 10000 + (varC % 100 - varC % 10) / 10) % 2 !== 0) {
        // B6 A1   A4 C6 C3 C2 A6
        latValue = Number(((varB % 1000000 - varB % 100000) / 100000 * 10 + varA % 10 + (varA % 10000 - varA % 1000) / 1000 * 0.1 + (varC % 1000000 - varC % 100000) / 100000 * 0.01 + (varC % 1000 - varC % 100) / 100 * 0.001 + (varC % 100 - varC % 10) / 10 * 1.0E-4 + (varA % 1000000 - varA % 100000) / 100000 * 1.0E-5))
    }

    if ( ((varC % 100000 - varC % 10000) / 10000 + (varC % 100 - varC % 10) / 10) % 2 === 0 ) {
        // A5 C6  C1 B3 B6 A2
        lonValue = Number(((varA % 100000 - varA % 10000) / 10000 * 100 + (varC % 1000000 - varC % 100000) / 100000 * 10 + varC % 10 + (varB % 1000 - varB % 100) / 100 * 0.1 + (varB % 1000000 - varB % 100000) / 100000 * 0.01 + (varA % 100 - varA % 10) / 10 * 0.001 + (varC % 100000 - varC % 10000) / 10000 * 1.0E-4 + varB % 10 * 1.0E-5));
    }
    else if ( ((varC % 100000 - varC % 10000) / 10000 + (varC % 100 - varC % 10) / 10) % 2 !== 0 ) {
        // B2 C1 A2  A5 B3 B1 ??
        lonValue = Number(((varB % 100 - varB % 10) / 10 * 100 + varC % 10 * 10 + (varA % 100 - varA % 10) / 10 + (varA % 100000 - varA % 10000) / 10000 * 0.1 + (varB % 1000 - varB % 100) / 100 * 0.01 + varB % 10 * 0.001 + (varC % 100000 - varC % 10000) / 10000 * 1.0E-4 + (varB % 100000 - varB % 10000) / 10000 * 1.0E-5));
    }

    latValue = latSign * latValue;
    lonValue = lonSign * lonValue;

    return { lat: latValue, lon: lonValue }
}

function fix(v, left, right) {
    return (v < 0 ? '-' : ' ') + Math.abs(v).toFixed(right).padStart(left + right + 1, '0');
}

function haversineDistance(lat1,lon1,lat2,lon2) {
    const R = 6371e3; // metres
    const φ1 = lat1 * Math.PI/180; // φ, λ in radians
    const φ2 = lat2 * Math.PI/180;
    const Δφ = (lat2-lat1) * Math.PI/180;
    const Δλ = (lon2-lon1) * Math.PI/180;
    
    const a = Math.sin(Δφ/2) * Math.sin(Δφ/2) +
              Math.cos(φ1) * Math.cos(φ2) *
              Math.sin(Δλ/2) * Math.sin(Δλ/2);
    const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
    
    const d = R * c; // in metres
    return d;
  }
  
  function dm2dd( nsew, deg, min ) {
      let sign;
      if( nsew == 'N' || nsew == 'E' ) {
          sign = 1;
      }
      else {
          sign = -1;
      }
  
      let numdeg = parseInt(deg);
      let nummin = parseFloat(min);
  
      let dd = sign * (numdeg + nummin/60);
      return dd;
  }
  

function createShowSourceButton() {
    let mybutton = document.createElement("button");
    mybutton.innerHTML = "Source";
    let noteref = document.getElementsByClassName("minorCacheDetails Clear")[0];
    noteref.appendChild(mybutton);

    mybutton.addEventListener("click", function() {
        var desc1 = document.getElementById("ctl00_ContentBody_ShortDescription").innerHTML;
        var desc2 = document.getElementById("ctl00_ContentBody_LongDescription").innerHTML;
        alert( desc1 + desc2 )
    });
}

function createShowSolveREReverseButton() {
    let mybutton = document.createElement("solvebutton");
    mybutton.innerHTML = "Solve RE";
    let noteref = document.getElementsByClassName("minorCacheDetails Clear")[0];
    noteref.appendChild(mybutton);

    mybutton.addEventListener("click", function() {
        solveReverseRE();
    });

    /*
    mybutton.addEventListener("click", function() {
        $( function() {
            $( "#dialog" ).dialog({width: "auto"})
            .next(".ui-widget-overlay")
            .css({
                opacity: 1.0,
                filter: "Alpha(Opacity=100)",
                backgroundColor: "black"
            });
          } );
        solveReverseRE();
    });
    */
}

function createDialog( ) {
    let mydialog = document.createElement("div");
    mydialog.id = "dialog";
    mydialog.title = "Results";
    let resultmsg = document.createElement("p");
    resultmsg.id = "resultmsg";
    mydialog.appendChild(resultmsg);
//    let noteref = document.getElementsByClassName("minorCacheDetails Clear")[0];
    let noteref = document.getElementById("ctl00_ContentBody_detailWidget");
    noteref.appendChild(mydialog);
}

// TODO: definitely not the best practice, but works (for now)
function pollDOM() {
    const newCrd = document.getElementById('newCoordinates');

    if (newCrd != null) {
      // Do something with el
      newCrd.value = newCoordinates;

      let submitBtn = document.getElementsByClassName("btn-cc-parse")[0];
      submitBtn.click();
      } else {
      setTimeout(pollDOM, 300); // try again in 300 milliseconds
    }
}

function updateCoordinates( newCoords ) {
    let crd = document.getElementById("uxLatLonLink");
    crd.click();

    newCoordinates = newCoords;

    pollDOM();
    console.debug("XX: " + newCoords);
}


/* async */ function solveReverseRE() {
    console.debug("Attempting to parse codes from note.");

    //let resultmsg = document.getElementById("resultmsg");
    let resultmsg = document.getElementsByClassName("Note Disclaimer")[0];

    
    let codes = document.getElementById("viewCacheNote").textContent.split('\n');
    for(let i=0; i<codes.length; i++) {
      codes[i] = codes[i].trim().split(" ");
    }
    if (codes.length != 3) {
        console.error("ERROR Parsing codes => Expected syntax: <code 1 from> <code 1 to> <code 1 regexp>\n <code 2 from> ...");
        return;
    }
  
    console.debug("Parsed: " + JSON.stringify(codes));
    
    let code1from = parseInt( codes[0][0] );
    let code1to = parseInt( codes[0][1] );
  
    let code2from = parseInt( codes[1][0] );
    let code2to = parseInt( codes[1][1] );
  
    let code3from = parseInt( codes[2][0] );
    let code3to  = parseInt( codes[2][1] );
  
    let code1re = RegExp( codes[0][2] );
    let code2re = RegExp( codes[1][2] );
    let code3re = RegExp( codes[2][2] );
  
    let coords = document.getElementById("uxLatLon").textContent.split(" ");
    if( coords.length != 6 ) {
        console.error("Error parsing coordinates");
        return;
    }
  
    let bogusLat = dm2dd( coords[0], coords[1], coords[2] );
    let bogusLon = dm2dd( coords[3], coords[4], coords[5] );    
    
    console.debug("Parsed coords: " + JSON.stringify(coords));
    console.debug("Converted coords: " + bogusLat + "  " + bogusLon);
  
    console.log("code1,code2,code3,lat(dd),lon(dd),lat(gps),lon(gps),dist(m)");
    let counter = 0;
    console.debug("Iterating [" + code1from.toString().padStart(6, "0") + " -> " + code1to.toString().padStart(6, "0") + "],[" 
                                + code2from.toString().padStart(6, "0") + " -> " + code2to.toString().padStart(6, "0") + "],[" 
                                + code3from.toString().padStart(6, "0") + " -> " + code3to.toString().padStart(6, "0") + "]");
                                // [001234->001235],[321333->421333],[444111->444222]
    for( let i = code1from; i <= code1to; i++ ) {
          let code1 = i.toString().padStart(6, "0");
          if( code1re.test( code1 ) == false ) {
            continue;
          }
  
          for( let j = code2from; j <= code2to; j++ ) {
            let code2 = j.toString().padStart(6, "0");
            if( code2re.test( code2 ) == false ) {
              continue;
            }
  
            console.debug("Testing [" + i.toString().padStart(6, "0") + "],[" + j.toString().padStart(6, "0") + "],[" + code3from.toString().padStart(6, "0") + " -> " + code3to.toString().padStart(6, "0") + "]" );
            for( let k = code3from; k <= code3to; k++ ) {
              let code3 = k.toString().padStart(6, "0");
              if( code3re.test( code3 ) == false ) {
                continue;
              }
  
              let ddlatlon = /* await */ code2LatLon( code1, code2, code3 );
              if( ddlatlon.lat == NaN || ddlatlon.lon == NaN ) continue;
              else {
                let dist = haversineDistance( bogusLat, bogusLon, ddlatlon.lat, ddlatlon.lon );
    
                if( dist < 3220 ) {
                    counter = counter+1;
                    let dmlatlon = /* await */ dd2dm( ddlatlon.lat, ddlatlon.lon);
                    let result = code1 + "," + code2 + "," + code3 + "," + fix(ddlatlon.lat, 2, 6) + "," + fix(ddlatlon.lon, 3, 6) + "," + dmlatlon.lat + "," + dmlatlon.lon + "," + dist.toFixed(0) ;  
                    console.log(result);
                    resultmsg.innerText = resultmsg.innerText + "\n" + result;
                }
              }
            }
          }
      }
      console.log("Total " + counter + " matches found");
  }

  (/* async */ function() {
    'use strict';
    let from, result;

    let cacheType = document.getElementsByClassName("cacheImage")[0].title;

    createShowSourceButton();
    

    if( cacheType == "Wherigo Cache" ) {
        createShowSolveREReverseButton();
        createDialog();

        let re = /[0-9]{6}/g;
        let codes = document.getElementsByClassName("UserSuppliedContent")[1].innerText.match( re );
        if( codes !== null && (codes.length == 3 || codes.length == 6 || codes.length == 9) ) {

            let ddlatlon = /* await */ code2LatLon( codes[0], codes[1], codes[2] );
            let dmlatlon = /* await */ dd2dm( ddlatlon.lat, ddlatlon.lon);
            from = codes[0] + " " + codes[1] + " " + codes[2] + " => ";
            let resultDD = fix(ddlatlon.lat, 2, 6) + " " + fix(ddlatlon.lon, 3, 6);
            let resultDMD = dmlatlon.lat + " " + dmlatlon.lon;
            result = resultDMD;
            console.debug( from + " " + resultDD + " = " + resultDMD );
            document.getElementsByClassName("Note Disclaimer")[0].innerHTML = "<strong> Reversewigo final coordinates =  " + result + " </strong>";

            updateCoordinates( resultDMD );
        }
        else {
            console.warn("WARNING: no codes found from description - trying to find codes from user note:");
            codes = document.getElementById("viewCacheNote").innerText.match( re );
            if( codes !== null && (codes.length == 3 || codes.length == 6 || codes.length == 9) ) {
                let ddlatlon = /* await */ code2LatLon( codes[0], codes[1], codes[2] );
                let dmlatlon = /* await */ dd2dm( ddlatlon.lat, ddlatlon.lon);
                from = codes[0] + " " + codes[1] + " " + codes[2] + " => ";
                let resultDD = fix(ddlatlon.lat, 2, 6) + " " + fix(ddlatlon.lon, 3, 6);
                let resultDMD = dmlatlon.lat + " " + dmlatlon.lon;
                result = resultDMD;
                console.log( from + " " + resultDD + " = " + resultDMD );
                document.getElementsByClassName("Note Disclaimer")[0].innerHTML = "<strong> Reversewigo final coordinates =  " + result + " </strong>";
                updateCoordinates( resultDMD );
            }
            else {
                result = "Error: Three reverse wherigo codes not found";
                console.log( result );
                document.getElementsByClassName("Note Disclaimer")[0].innerHTML = "<strong> Reversewigo final coordinates =  " + result + " </strong>";
            }

        }
    }
})();