Legendary Farming JS

function solve(input){
  let arr = input.split(' ');
  let materials = {};
  let keyMaterails = {
      'shards': 0,
      'fragments': 0,
      'motes': 0
  };
  let winner = '';
  for(let i = 0 ; i <= arr.length-1; i+=2){
    let quantity = Number(arr[i]);
    let  material = arr[i+1].toLowerCase();

    if(material === 'shards' || material === 'fragments' || material === 'motes'){
        keyMaterails[material] += Number(quantity);
        if(keyMaterails[material]>= 250 && material === 'shards'){
            winner = 'Shadowmourne' ;
            keyMaterails[material] -= 250;
            break;
         }
         else if(keyMaterails[material]>= 250 && material === 'fragments'){
             winner = 'Valanyr' ;
             keyMaterails[material] -= 250;
             break;
          }
          else if(keyMaterails[material]>= 250 && material === 'motes'){
             winner = 'Dragonwrath' ;
             keyMaterails[material] -= 250;
             break;
          }
    }

    else{
        if(!materials.hasOwnProperty(material)){
            materials[material] = Number(quantity);
        }
        else{
            materials[material] += Number(quantity);
        }
    }

  }
  console.log(`${winner} obtained!`);

  let sortedkeyMaterails = Object.entries(keyMaterails);

  for (let [material, quantity] of sortedkeyMaterails) {
    sortedkeyMaterails.sort(sortDescending);
    if(quantity === sortedkeyMaterails[1][1] ){
        sortedkeyMaterails.sort(sortAlphabetically);
    }
  }

  let sortedMaterails = Object.entries(materials);

  for (let [material, quantity] of sortedMaterails) {
    sortedMaterails.sort(sortAlphabetically);
  }

  function sortDescending(firstMaterial, secondMaterial){
    let firstQuantity = firstMaterial[1];
    let secondQuantity = secondMaterial[1];
    return secondQuantity - firstQuantity;
   }

    function sortAlphabetically(firstMaterial, secondMaterial){
       let firstMaterialName = firstMaterial[0];
       let secondMaterialName = secondMaterial[0];
      return firstMaterialName.localeCompare(secondMaterialName);
    }
    for(let [material, quantity] of sortedkeyMaterails){
        console.log(`${material}: ${quantity}`);
    }
    for(let [material, quantity] of sortedMaterails){
        console.log(`${material}: ${quantity}`);
    }
}