09. Gladiator Inventory

function gladiatorInventory(inputCommands) {

    let inventory = inputCommands.shift().split(' ');

    for (let i = 0; i < inputCommands.length; i++) {
        let commands = inputCommands.slice()[i].split(' ')
        let command = commands[0];
        let equipment = commands[1];

        switch (command) {
            case 'Buy': buy(equipment);
                break;
            case 'Trash': thrash(equipment);
                break;
            case 'Repair': repair(equipment);
                break;
            case 'Upgrade': upgrade(equipment);
                break;
        }
    }
    console.log(inventory.join(' '));

    function buy(eqp) {
        if (!inventory.includes(eqp)) {
            inventory.push(eqp);
        }
        return inventory;
    }

    function thrash(eqp) {
        for (let i = 0; i < inventory.length; i++) {
            if (eqp === inventory[i]) {
                inventory.splice(i, 1);
            }
        }
        return inventory;
    }

    function repair(eqp) {
        for (let i = 0; i < inventory.length; i++) {
            if (eqp === inventory[i]) {
                let repaired = inventory.splice(i, 1);
                inventory.push(repaired.toString());
            }
        }
        return inventory;
    }

    function upgrade(eqp) {
        let item = eqp.split('-')
        for (let i = 0; i < inventory.length; i++) {
            if (item[0] === inventory[i]) {
                inventory.splice(i+1,0,eqp)
            }
        }
        return inventory;
    }

}