#1495 add percent adjustment to compute needed products

orders/static/css/oders_helper_style.css

@@ -197,6 +197,23 @@
     border-radius: 3px;
 }
 
+#coverage_form > div {
+    display:inline-block;
+    float:left;
+}
+
+#coverage_form .input-wrapper {
+    margin-right: 3px;
+}
+
+#coverage_days_input, #percent_adjust_input {
+    display:  block;
+}
+
+#coverage_days_input {
+    margin-bottom: 3px;
+}
+
 /* -- Table */
 #products_table_filter{
     text-align: right !important;

orders/static/js/orders_helper.js

@@ -189,7 +189,14 @@ function add_product() {
  * Set the computed qty for the first supplier only.
  */
 function compute_products_coverage_qties() {
+    const pc_adjust = $('#percent_adjust_input').val();
+    let coeff = 1;
+    if (!isNaN(parseFloat(pc_adjust))) {
+        coeff = (1 + parseFloat(pc_adjust) /100);
+    }
+
     if (order_doc.coverage_days != null) {
+        order_doc.coeff = coeff;
         for (const [
             key,
             product
@@ -202,12 +209,16 @@ function compute_products_coverage_qties() {
                 const incoming_qty = product.incoming_qty;
                 const daily_conso = product.daily_conso;
 
+
                 purchase_qty_for_coverage = order_doc.coverage_days * daily_conso - stock - incoming_qty;
                 purchase_qty_for_coverage = (purchase_qty_for_coverage < 0) ? 0 : purchase_qty_for_coverage;
 
                 // Reduce to nb of packages to purchase
                 purchase_package_qty_for_coverage = purchase_qty_for_coverage / product.suppliersinfo[0].package_qty;
 
+                if (order_doc.coeff != 1) {
+                    purchase_package_qty_for_coverage *= order_doc.coeff;
+                }
                 // Round up to unit for all products
                 purchase_package_qty_for_coverage = Math.ceil(purchase_package_qty_for_coverage);
 
@@ -1885,6 +1896,10 @@ function update_main_screen(params) {
         $("#coverage_days_input").val('');
     }
 
+    if (order_doc.coeff && order_doc.coeff != 1) {
+        $("#percent_adjust_input").val(-Math.ceil((1 - order_doc.coeff) * 100));
+    }
+
     if (order_doc.stats_date_period !== undefined && order_doc.stats_date_period !== null) {
         $("#stats_date_period_select").val(order_doc.stats_date_period);
     } else {

templates/orders/helper.html

@@ -93,8 +93,13 @@
                 </select>
             </form>
             <form action="javascript:;" id="coverage_form" class="order_form_item">
+                <div class="input-wrapper">
                     <input type="number" name="coverage_days" id="coverage_days_input" placeholder="Nb jours de couverture" min="1">
+                    <input type="number" name="percent_adjustement" id="percent_adjust_input" placeholder="ajustement en % (+ ou -)">
+                </div>
+                <div>
                     <button  type="submit" class='btn--primary'>Calculer les besoins</button> <i class='main fa fa-info-circle fa-lg'></i>
+                </div>
             </form>
         </div>