Man O War

function manOWar(input) {
  let pirateShip = input.shift().split(">").map(Number);
  let warShip = input.shift().split(">").map(Number);
  let maxHealth = Number(input.shift());

  for (let row of input) {
    let [command, num1, num2, num3] = row.split(" ");
    num1 = Number(num1);
    num2 = Number(num2);
    num3 = Number(num3);

    if (command === "Fire") {
      let index = num1;
      let damage = num2;

      if (index >= 0 && index < warShip.length) {
        warShip[index] -= damage;

        if (warShip[index] <= 0) {
          let end = console.log(`You won! The enemy ship has sunken.`);
          return end;
        }
      }
    } else if (command === "Defend") {
      let startIndex = num1;
      let endIndex = num2;
      let damage = num3;

      if (
        startIndex >= 0 &&
        startIndex < pirateShip.length &&
        endIndex >= 0 &&
        endIndex < pirateShip.length
      ) {

        for (let i = startIndex; i <= endIndex; i++) {
          pirateShip[i] -= damage;

          if (pirateShip[i] <= 0) {
            let end = console.log(`You lost! The pirate ship has sunken.`);
            return end;
          }
        }
      }
    }
    else if (command === "Repair") {
      let index = num1;
      let heal = num2;

      if (index >= 0 && index < pirateShip.length) {
        pirateShip[index] += heal;

        if (pirateShip[index] > maxHealth) {
          pirateShip[index] = maxHealth;
        }
      }
    } else if (command === "Status") {
      let count = 0;
      let minHealth = maxHealth * 0.2;

      for (let ship of pirateShip) {

        if (ship < minHealth) {
          count++;
        }
      }

      console.log(`${count} sections need repair.`);
    }
  }

  let pirateShipSum = pirateShip.reduce(
    (accumulator, currentValue) => accumulator + currentValue
  );
  let warshipSum = warShip.reduce(
    (accumulator, currentValue) => accumulator + currentValue
  );

  console.log(`Pirate ship status: ${pirateShipSum}`);
  console.log(`Warship status: ${warshipSum}`);
}