fix imported schematic grid alignment issues in Upverter

upverter-fix.js

function fixUpverterFile(filename) {
    try {
        var upverterDoc = JSON.parse(fs.readFileSync(filename).toString());
        var grid = 10;
        var changes = fixUpverterSchematicGrid(upverterDoc, grid);
        var newName = filename.replace(".upv", "") + "-fixed.upv";
        return {
            success: changes !== false,
            newName: newName,
            fileContents: JSON.stringify(upverterDoc)
        }
    } catch (e) {
        return {
            success: false,
        }
    }
}

function toNearest(num, div) {
    return Math.round(num / div) * div;
}

function moveToGrid(obj, grid) {
    var change = false;
    if (obj.x && obj.x % grid != 0) {
        obj.x = toNearest(obj.x, grid);
        change = true;
    }
    if (obj.y && obj.y % grid != 0) {
        obj.y = toNearest(obj.y, grid);
        change = true;
    }
    return change;
}

function fixUpverterSchematicGrid(upverterObject, grid) {
    var doc = upverterObject;
    if (doc && doc.component_instances) {
        var changes = 0;

        for (var i = 0; i < doc.component_instances.length; i++) {
            if (doc.component_instances[i].symbol_attributes && doc.component_instances[i].symbol_attributes.length > 0) {
                for (var j = 0; j < doc.component_instances[i].symbol_attributes.length; j++) {
                    if (moveToGrid(doc.component_instances[i].symbol_attributes[j], grid)) changes++;
                }
            }
        }

        for (var i = 0; i < doc.nets.length; i++) {
            if (doc.nets[i].points && doc.nets[i].points.length > 0) {
                for (var j = 0; j < doc.nets[i].points.length; j++) {
                    if (moveToGrid(doc.nets[i].points[j], grid)) changes++;
                }
            }
        }

        return changes;

    } else {
        console.log("invalid file");
        return false;
    }
}