jlcpcb_calc.js

// Results above this price will not be listed
var maxPrice = 50;
// Configurations that would result in more than this qty of boards will not get listed
var maxBoardQty = 500;
// Maximum number of panels to check for
var maxPanelQty = 50;
// Maximum number of boards in a panel, X and Y
var maxPanelSize = 10;
// Should the results be sorted by price per PCB, if false, they're sorted by total qty
var sortByPrice = true;


function addJob(qty, panel, x, y)
{
    jobs.push({
        'qty': qty,
        'panel': panel,
        'x': x,
        'y': y
    });
}

function startJob(job)
{
    if (!job)
        return;

    //console.log("Starting " + JSON.stringify(job));
    console.log(`Progress: ${Math.round((1 - (jobs.length / numJobs)) * 100)}%`);

    if (job['panel']) {
        if (form.Panel == "No")
            enablePanelBtn.click();

        form.sestencilCountX = job['x'];
        form.sestencilCountY = job['y'];
        form.edgeRails = 1;
    } else if (form.Panel == "Yes") {
        disablePanelBtn.click();
    }

    // Set to 0 and when the value changes we know we got the response
    pcbNode.countPrice.shoppingItemDetail.customerOrderDetail.stencilCounts = 0;

    pcbNode.chose(job['qty']);
    pcbNode.smtRequirements('changeAchieveDate');

    setTimeout(processJobs, 250, false);
}

function processJobs(isFirst)
{
    if (jobs.length == 0) {
        console.log("No more jobs.");
        return;
    }

    var job = jobs[0];

    if (isFirst) {
        startJob(job);

        return;
    }

    var orderDetail = pcbNode.countPrice.shoppingItemDetail.customerOrderDetail;
    var hasPanel = job['panel'];
    var xMatch = orderDetail.sestencilCountX == job['x'] || (!orderDetail.sestencilCountX && !job['x']);
    var yMatch = orderDetail.sestencilCountY == job['y'] || (!orderDetail.sestencilCountY && !job['y']);
    var qtyMatch = orderDetail.stencilCounts == job['qty'];

    if (!qtyMatch || (hasPanel && (!xMatch || !yMatch))) {
        //console.log("Still loading");
        setTimeout(processJobs, 100, false, false);
    } else {
        //console.log("job: " + JSON.stringify(job) + ", price: " + pcbNode.totalPrice);
        results.push({
            'job': job,
            'totalPrice': pcbNode.totalPrice
        });

        jobs = jobs.slice(1);

        if (jobs.length > 0) {
            startJob(jobs[0]);
        } else {
            processResults();
        }
    }
}

function processResults()
{
    results.forEach(function(result)
    {
        var job = result['job'];
        var totalPrice = result['totalPrice'];

        var totalQty = job['qty'];
        if (job['panel'])
            totalQty *= (job['x'] * job['y']);

        result['totalQty'] = totalQty;
        result['pricePerPanel'] = totalPrice / job['qty'];
        result['pricePerBoard'] = totalPrice / totalQty;

        //console.log(JSON.stringify(result));
    });

    results.sort(function(a, b)
    {
        var field = sortByPrice ? 'pricePerBoard' : 'totalQty';

        if (a[field] < b[field])
            return -1;
            
        if (a[field] > b[field])
            return 1;

        return 0;
    });

    results = results.filter(function(result)
    {
       return result['totalPrice'] < maxPrice; 
    });

    console.log("Done! Here's the top 5 configurations:");

    results.slice(0, 5).forEach(function(result, idx) {
        var job = result['job'];

        console.log(`${idx + 1}. PCB Qty: ${job['qty']}, Panel X: ${job['x']} Y: ${job['y']}, Total PCBs: ${result['totalQty']}, Total Price: ${result['totalPrice']}, Price per PCB: ${result['pricePerBoard'].toFixed(3)}`);
    });
}

function findSiblingWithAttribute(node, attr)
{
    for (var i = 0; i < 100; ++i) {
        node = node.$$nextSibling;
        if (attr in node)
            break;
    }

    return node;
}

var jobs = [];
var results = [];
var numJobs = 0;

var app = angular.element(document);
var scope = app.data('$scope');
var node = scope.$$childHead;

var pcbNode = findSiblingWithAttribute(node, 'encapsulationForm');
var form = pcbNode.form;

var enablePanelBtn = angular.element("button[ng-disabled='form.disablePannel']")[0];
var disablePanelBtn = angular.element("button[ng-class='{\'cur\':form.Panel==\'No\'}']")[0];

var boardWidth = parseInt(form.stencilWidth);
var boardHeight = parseInt(form.stencilLength);

// Generate job list
form.selectqtylist.forEach(function(qty)
{
    if (qty > maxPanelQty)
        return;

    addJob(qty, false, 0, 0);

    for (var x = 1; x < maxPanelSize; ++x) {
        for (var y = 1; y < maxPanelSize; ++y) {
            var boardQty = qty * x * y;
            if (boardQty > maxBoardQty)
                continue;

            var addTenX = 0;
            var addTenY = 0;
            if (x < y) {
                addTenX = 10
            } else {
                addTenY = 10;
            }

            // Panel size must be at least 70x70, rails are 10mm
            if (((x * boardWidth) + addTenX) < 70 || ((y * boardHeight) + addTenY) < 70)
                continue;

            addJob(qty, true, x, y);
        }
    }
});

numJobs = jobs.length;

//console.log(jobs);

setTimeout(processJobs, 0, true);