// Find data wrappers -- ideally with syntax so that there will not be a console error thrown on non-product pages [ie. no multiple query selectors / finds]
var approve_product_wrapper = document.querySelector('.product-details');
var approve_price_wrapper = document.querySelector(".ProductPrice");
var approve_model_wrapper = document.querySelector('[itemprop=name]');
var approve_qty_ele = document.getElementsByName("qty[]")[0];

// Set this to true if you want console logs to run
var approve_debug_mode = false;

// Equiped to put the button on the page and update the button on subsequent data changes.
function init_approve_button(){
    if (!approve_product_wrapper || !approve_price_wrapper || !approve_model_wrapper){
        if (!approve_product_wrapper){
             console.log("The approve product wrapper is missing from the page.");
        }
        if (!approve_price_wrapper){
            console.log("The approve price wrapper is missing from the page.");
       }
       if (!approve_model_wrapper){
        console.log("The approve model wrapper is missing from the page.");
        }
        return;
    }

    // Find price & clean
    var approve_price = approve_price_wrapper.innerHTML;
    if (!approve_price){
        if (approve_debug_mode){
            console.log("No price found.");
        }
        return;
    }
    approve_price = approve_price.replace(/[^0-9-.]/g, '');
    approve_price = parseInt(approve_price);

    // Find model. Clean if necessary.
	var approve_model = approve_model_wrapper.textContent;
    if (!approve_model){
        if (approve_debug_mode){
            console.log("No model found.");
        }
        return;
    }

    // If qty wrapper exists, find qty. Otherwise, qty is set to 1.
    if (approve_qty_ele){
        var approve_qty = approve_qty_ele.value;
    } else {
        var approve_qty = 1;
    }

    // Element containing SELECTED options goes here. We need to add to the model name. 
    var approve_selected_options = document.querySelectorAll('.selectedValue');
    approve_selected_options.forEach(function (item, index) {
        var approve_option_name = item.querySelector('label').querySelector('span.name').innerHTML;
        approve_model = approve_model + " / " + approve_option_name;
    });


    if(isNaN(approve_price) || !approve_model || !approve_qty){
        if (approve_debug_mode){
            console.log("Something went wrong in the configuration of button variables");
        }
        return;
    }

    // Find the element where we want to insert our button.
    var approve_insert_after_ele = document.querySelector('.AddToCartButtonRow');
    if(!approve_insert_after_ele){
        if (approve_debug_mode){
            console.log("Element to insert approve button after not found.");
        }
        return;
    }

    // Check to see if the approve button is already on the page. If it isn't, we will create it now.
    var approve_button = document.getElementById('approve_button_id');
    if (!approve_button){
        var approve_button = document.createElement('approve-button');
        approve_button.id = "approve_button_id";
        approve_button.style.display="inline-block";
        approve_button.style.textAlign="center";
        approve_button.style.margin="15px";
        approve_button.setAttribute('application-type',"embedded_app");
        approve_insert_after_ele.after(approve_button);
    }

    // If price is below $200, teaser rate breaks. Let's ensure that it's above $200.
    if ((parseFloat(approve_price) * parseInt(approve_qty)) < 200){
        if (approve_debug_mode){
            console.log("Price is below $200.");
        }
        approve_button.style.display = "none";
        return;
    }
    

    approve_button.setAttribute('price',approve_price);
	approve_button.setAttribute('model',approve_model);
	approve_button.setAttribute('qty',approve_qty);
	approve_button.setAttribute('type',"new_product");
}

function approve_update_qty(approve_qty){
    var approve_button = document.getElementById('approve_button_id');
    if (approve_button){
        var approve_btn_qty = parseInt(approve_button.getAttribute('qty'));
        if (approve_qty != approve_btn_qty){
            approve_button.setAttribute('qty',approve_qty);
        }
    }
}

if (approve_product_wrapper){

    init_approve_button();

    // Add change listener to qty input
    if (approve_qty_ele){
        approve_qty_ele.addEventListener('change',event => {
            var approve_qty = parseInt(approve_qty_ele.value);
            approve_update_qty(approve_qty);
        })
    }

    if (approve_price_wrapper){
        // Add observer to price element
        const approve_price_observer = new MutationObserver(function() {
            init_approve_button();
        });
        approve_price_observer.observe(approve_price_wrapper,{subtree: false, childList: true});
    }
}