Fantasy Football: Calculates highest scoring winner from each week + total scores for the season - REGULAR SEASON ONLY - (Yahoo Fantasy Sports)

ff-highest-score.js

/*
  Instructions:
        - Log-in and navigate to your league's homepage. Make sure you are on Week 1 of the scores.
  	- Right-click and open Developer Tools
	- Copy/paste the script contents into the Console and press enter to load the script into the page
	- Execute the script within the Console by invoking the function: getScoreDataForSeason()
	- Script will log in the Console when it is processing each week
	- When the script is done, two tables will print to the Console: one with the top scorer for each week, another with the total scores for the entire season
*/

async function getScoreDataForSeason() {
    const highestWeeklyScoresData = [];
    const usernameToTotalScoreMap = {};
    let week = 1;
    const MAX_NUM_WEEKS = 16;

     while(week <= MAX_NUM_WEEKS) {
        console.log(`Extracting scores for week ${week}`);

	const { highestWeeklyScorer, weeklyUserToScoreMap } = _getWeekScoreData();
	const { name, score } = highestWeeklyScorer;
	highestWeeklyScoresData.push([week, name, score]);
	     
	for(const user in weeklyUserToScoreMap) {
		const weeklyScore = weeklyUserToScoreMap[user];
		const totalUserScore = usernameToTotalScoreMap[user];
		
		if (totalUserScore === undefined) {
			usernameToTotalScoreMap[user] = weeklyScore;
		}
		else {
			usernameToTotalScoreMap[user] = totalUserScore + weeklyScore;
		}
	}
	     
	     
	console.log(`Loading next week's scores`);
	     
	let nextPageBtn = _selectNextWeekPageBtn();
    	if (nextPageBtn) {
	    nextPageBtn.click();
	    await _wait(3500); // hacky: wait some amount of time to load next week's results
	}
	week++;
     }

     console.log("Extraction complete");
	
     console.log("Highest Weekly Scores");
     console.table(highestWeeklyScoresData);

     console.log("Total Scores for Season");
     console.table(usernameToTotalScoreMap);

    return { highestWeeklyScoresData, usernameToTotalScoreMap };
	
	/* Helpers */
        function _wait(ms) {
		return new Promise((resolve) => {
  			setTimeout(() => {
				resolve();
			}, ms);
		});
	}
	
	
	function _selectNextWeekPageBtn() {
		return document.querySelector(".Js-next:not(.Btn-disabled)");
	}



	function _getWeekScoreData() {
		const scoreElements = document.querySelectorAll("#matchupweek .List-rich .Grid-u-6-13");
		let weekWinner = {
		  score: -1,
		  name: "Rolo"
		};
		let weeklyUserToScoreMap = {};

		for (let i = 0; i < scoreElements.length; i++) {
		   const entryElement = scoreElements[i];
		   const isByeWeekCell = (entryElement.innerText === "Bye");
			
		   if (!isByeWeekCell) {
		   	const score = parseFloat(entryElement.querySelector(".Grid-u-1-4").innerText);
		   	const name = entryElement.querySelector(".F-link").innerText;

			weeklyUserToScoreMap[name] = score;
			   
			  if (score > weekWinner.score) {
				weekWinner = {
		      			score: score,
		      			name: name
		    		};
		  	  }
		   }
		}

		return {
			highestWeeklyScorer: weekWinner,
			weeklyUserToScoreMap
		};
	}
}