const paper = 'PAPER';
const rock = 'ROCK';
const scissors = 'SCISSORS';

function compute_result(you_threw, i_threw){
    if(you_threw == i_threw){
        return "A DRAW!!";
    }
    if(you_threw == paper){
        if(i_threw == rock){
            return "You have defeated me.";
        }
        else{
            return "The victory is mine!";
        }
    }
    if(you_threw == rock){
        if(i_threw == paper){
            return "I win again!";
        }
        else{
            return "You have bested me once more.";
        }
    }
    if(you_threw == scissors){
        if(i_threw == paper){
            return "Your skill is greatest.";
        }
        else{
            return "My superior talent has given me the victory.";
        }
    }
    // If we get here without returning, then we didn't have a pair of arguments
    // that we recognize.
    return "I'm not sure what happened there.";
}

function what_did_i_throw(){
    var rando = Math.random();
    if(rando < .33){
        return rock;
    }
    if(rando >= .33 && rando < .67){
        return paper;
    }
    if(rando >= .67){
        return scissors;
    }
}

input selection :dropdown
    -items [rock, paper, scissors]
    -label "Choose your weapon"
    -default rock;
    
emit -limit 1
| put you_threw = selection,
    i_threw = what_did_i_throw(),
    result = compute_result(you_threw, i_threw)
| view table
    -title "The duel"
    -columnOrder "time", "you_threw", "i_threw", "result"