const speedometer = document.getElementById("speedometer")
const select = document.getElementById("select")
const time = document.getElementById("time")
const btnCalculate = document.getElementById("btnCalculate")
let currentLocation = ""
let timeTaken = 0

let destination = [
    {
        name: "Munich",
        distanceFromPrevDestination: 2892
    },
    {
        name: "Kiev",
        distanceFromPrevDestination: 1111
    },
    {
        name: "Ulaanbaatar",
        distanceFromPrevDestination: 5324
    },
     {
        name: "Sydney",
        distanceFromPrevDestination: 5458
    },
    {
        name: "Tijuana",
        distanceFromPrevDestination: 6531
    },
    {
        name: "Chicago",
        distanceFromPrevDestination: 1729
    }
]

function calculateSpeed() {
    let speed = 0    
    currentLocation = select.value
    let distance = destination.find(obj => obj.name === currentLocation).distanceFromPrevDestination
    timeTaken = time.value

    if (timeTaken === '0') {
        speed = 0
    } else {
        speed = parseInt(distance) / parseInt(timeTaken)
    }

    speedometer.innerText = `${speed} reindeer speed`
    // Task:
    // - Retrieve distance from previous destination from array of objects.
    // - Calculate speed and round speed to an integer (whole number).
    // - Display speed in speedometer paragraph.
   
}

btnCalculate.addEventListener('click',calculateSpeed)

// Stretch goals: 
// - Calculate average overall speed.
// - Display location as North Pole on pageload.