// USAGE INSTRUCTIONS:
// Go to https://apps.runescape.com/runemetrics/app/pvm-kills (logging in, if needed)
// Open up the JavaScript console in your browser
// Paste this code into the console and press enter
// Please report any errors or bugs to Cook Me Plox

// change currentBatch to be in [0 ... totalBatches-1]
var currentBatch = 0;
var totalBatches = 1;

// start and end times in Unix millis
var start = 1420294400000;
var end = 1620899199999;

// get your username
var avatar = $("#a-header-avatar").attr("alt");
var username = avatar.substr(0, avatar.length - 7);

var versionID = "1.0/custom";
// whether to skip monsters we think drop nothing
var skip = true;
// whether to batch scraping into separate runs, if you time out frequently
var useBatch = true;

var sessionEnded = false;

var metadata = JSON.stringify({"runID": Math.random(), "versionID": versionID, "skip": skip, "currentBatch": currentBatch, "totalBatches": totalBatches});

// these monster IDs (we think!) don't drop anything, so we can skip them
var missing = "1329".split(" ");

var totalMonsters = undefined;
var visitedMonsters = 0;

function postData(url, data, username) {
  // this is my server's URL. It only posts data from getDrops and getKills.
  var postUrl = "https://cookmeplox.pythonanywhere.com/runemetricslogger/";
  $.post(postUrl, data + "&&&" + username + "&&&" + url + "^^^" + metadata);
}

// get data from RuneMetrics, retrying on failure, and stopping if session ends.
function safeGet(url, callback) {
  if (sessionEnded) {
    return;
  }
  $.ajax(url, {
    success: callback,
    error: function(xhr) {
      if (sessionEnded) {
        return;
      }
      if (xhr.status === 0) {
        console.error("Uh oh! We think your session ended prematurely. Try refreshing the page and running again. If this persists, contact Cook Me Plox.");
        sessionEnded = true;
      } else {
        if (this.retries > 0) {
          console.log("Failed to GET url " + url + " -- retrying (" + this.retries + " left)");
          this.retries--;
          $.ajax(this);
          return;
        } else {
          console.error("Failed to GET url " + url + " -- retries exhausted.");
        }
      }
    },
    retries: 3
  });
}

function getDrops(start, end, id) {
  var url = "https://apps.runescape.com/runemetrics/aggregations/npc/drop-log/range/day?&start=" + start + "&end=" + end + "&id=" + id;
  safeGet(url, function(data) {
    visitedMonsters++;
    console.log("Got drops for monster #" + id + "; " + visitedMonsters + "/" + totalMonsters + " done");
    postData(url, JSON.stringify(data), username);
  });
}

function getKills(start, end) {
  metadata.runID = Math.random();
  visitedMonsters = 0;
  var url = "https://apps.runescape.com/runemetrics/aggregations/npc/kill/range/day?&start=" + start + "&end=" + end;
  safeGet(url, function(data) {
    console.log("Got kills");
    postData(url, JSON.stringify(data), username);
    var kills = data;
    var aggKills = {};
    kills.monsterKills.forEach(function(day) {
      Object.keys(day).forEach(function(hourKey) {
        if (hourKey == "day") {
          return;
        }
        Object.keys(day[hourKey]).forEach(function(idKey) {
          var thisKills = day[hourKey][idKey].kills;
          aggKills[idKey] = aggKills.hasOwnProperty(idKey) ? (aggKills[idKey] + thisKills) : thisKills;
        });
      });
    });

    var flatKills = [];
    Object.keys(aggKills).forEach(function(key) {
      flatKills.push([key, aggKills[key]]);
    });

    flatKills.sort(function(a, b) {
      return b[1] - a[1];
    });
    if (skip) {
      flatKills = flatKills.filter(function(key) {
        return missing.indexOf(key[0]) !== -1;
      });
    }
    if (useBatch) {
      flatKills = flatKills.filter(function(key) {
        return parseInt(key[0]) % totalBatches === currentBatch;
      });
    }
    totalMonsters = flatKills.length;
    flatKills.forEach(function(elt, i) {
      var id = elt[0];
      getDrops(start, end, id);
    });
  });
}

getKills(start, end);