shopping list

//02. Shopping List
function solve(array) {

    let list = array.shift().split('!')

    for (let line in array) {
        let command = array[line];

        while (command !== 'Go Shopping!'){
            let input = array[line].split(' ');
            let items = input[1];

            switch (input[0]) {

                case 'Unnecessary':
                    if (list.includes(items)) {
                        list.splice(list.indexOf(items), 1)
                    }
                    break;

                case 'Urgent':
                    if (!list.includes(items)) {
                        list.unshift(items);
                    }
                    break;

                    case 'Correct':
                      let oldItems = input[1];
                      let newItems = input[2];
                        if(list.includes(oldItems)){
                           list.splice(list.indexOf(oldItems), 1, (newItems));
                        }
                        break;

                        case 'Rearrange':
                            if(list.includes(items)){
                                list.push(items);
                                list.splice(list.indexOf(items), 1);
                            }
                            break;
            }
         break;
        }
    }
    console.log(list.join(', '));
    }
// solve(['Tomatoes!Potatoes!Bread','Unnecessary Milk','Urgent Tomatoes',]);
solve(['Milk!Pepper!Salt!Water!Banana','Urgent Salt','Go Shopping!','Correct Pepper Onion',
'Rearrange Onion','Correct Tomatoes Potatoes','Go Shopping!'])