"using strict";

// const menus = [ { "name": "Fruit", "items": [ "Banana", "Orange", "Pineapple", "Apple" ], "description":"What it says on the tin." }, { "name": "Genre", "items": [ "FFP", "Jiminy Cockthroat", "しひろ Cockthroat", "Spunk Gargle Weewee" ], "description":"Overal genre of the thinky thing" } ];

function initLists (lists){
    const menuContainer = document.getElementById('menu-container');

    lists.forEach( menu =>{
        const dropdownMenu = document.createElement('menu');
        const menuTitle = Object.assign(document.createElement('h2'), {innerHTML:menu.name});
        const description = Object.assign(document.createElement('p'), {innerHTML:menu.description});
        const dropdownSelect = document.createElement('select');

        dropdownMenu.id = menu.name.toLowerCase();
        dropdownMenu.className = "dropdown-menu";
        dropdownMenu.appendChild(menuTitle);
        dropdownMenu.appendChild(description);
        menuContainer.appendChild(dropdownMenu);
        dropdownMenu.appendChild(dropdownSelect);

        menu.items.forEach(item =>{
            dropdownSelect.append(Object.assign(document.createElement('option'), {id:item.toLowerCase(), innerHTML:item}));
        });
    });
};

document.getElementById('import').onclick = function() {
    const files = document.getElementById('selectFiles').files;
    if (files.length <= 0) {
        return false;
    }

    const fr = new FileReader();

    fr.onload = function(e) {
        initLists(JSON.parse(e.target.result));
    }

    fr.readAsText(files.item(0));
};