feat: add Cost and Margin % columns with inline editing

Cost column shows Odoo standard_price (editable). Margin % is calculated
from cost and sale price. Editing margin auto-calculates the sale price
using: price = cost / (1 - margin/100). All cells are inline-editable.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

fusion-woo-odoo/fusion_woocommerce/controllers/product_search.py

@@ -158,6 +158,7 @@ class WooProductSearchController(http.Controller):
                     'odoo_product_name': m.product_id.name if m.product_id else '',
                     'odoo_default_code': m.product_id.default_code or '' if m.product_id else '',
                     'odoo_price': m.product_id.list_price if m.product_id else 0.0,
+                    'odoo_cost': m.product_id.standard_price if m.product_id else 0.0,
                     'woo_regular_price': m.woo_regular_price or 0.0,
                     'woo_sale_price': m.woo_sale_price or 0.0,
                     'sync_price': m.sync_price,

fusion-woo-odoo/fusion_woocommerce/static/src/css/woo_styles.css

@@ -626,6 +626,11 @@ html[style*="color-scheme: dark"] {
 .woo-editable-cell:hover {
     background: var(--woo-bg-hover) !important;
 }
+.woo-margin-cell {
+    font-weight: 600;
+    color: var(--woo-success);
+}
+
 .woo-edit-input {
     width: 90px;
     padding: 2px 6px;

fusion-woo-odoo/fusion_woocommerce/static/src/js/product_mapping.js

@@ -226,6 +226,19 @@ export class ProductMapping extends Component {
         return "$" + n.toFixed(2);
     }
 
+    calcMargin(cost, price) {
+        const c = parseFloat(cost) || 0;
+        const p = parseFloat(price) || 0;
+        if (p <= 0 || c <= 0) return null;
+        return ((p - c) / p) * 100;
+    }
+
+    formatMargin(cost, price) {
+        const m = this.calcMargin(cost, price);
+        if (m === null) return "—";
+        return m.toFixed(1) + "%";
+    }
+
     // -------------------------------------------------------------------------
     // Tab handlers
     // -------------------------------------------------------------------------
@@ -606,6 +619,44 @@ export class ProductMapping extends Component {
                         kwargs: {},
                     });
                 }
+            } else if (cell.field === 'odoo_cost') {
+                const product = this.state.mappedProducts.find(p => p.id === cell.mapId);
+                if (product && product.odoo_product_id) {
+                    await rpc("/web/dataset/call_kw", {
+                        model: "product.product",
+                        method: "write",
+                        args: [[product.odoo_product_id], { standard_price: value }],
+                        kwargs: {},
+                    });
+                }
+            } else if (cell.field === 'margin') {
+                // Margin edit: calculate new sale price from cost and desired margin
+                const product = this.state.mappedProducts.find(p => p.id === cell.mapId);
+                if (product && product.odoo_product_id) {
+                    const cost = parseFloat(product.odoo_cost) || 0;
+                    if (cost <= 0) {
+                        this.notification.add("Cannot calculate price: cost is zero.", { type: "danger" });
+                        await this._loadMapped();
+                        return;
+                    }
+                    if (value >= 100) {
+                        this.notification.add("Margin cannot be 100% or more.", { type: "danger" });
+                        await this._loadMapped();
+                        return;
+                    }
+                    // price = cost / (1 - margin/100)
+                    const newPrice = cost / (1 - value / 100);
+                    const rounded = Math.round(newPrice * 100) / 100;
+                    await rpc("/web/dataset/call_kw", {
+                        model: "product.product",
+                        method: "write",
+                        args: [[product.odoo_product_id], { list_price: rounded }],
+                        kwargs: {},
+                    });
+                    this.notification.add("Sale price set to $" + rounded.toFixed(2) + " (" + value.toFixed(1) + "% margin).", { type: "success" });
+                    await this._loadMapped();
+                    return;
+                }
             }
             this.notification.add("Price updated.", { type: "success" });
         } catch (err) {

fusion-woo-odoo/fusion_woocommerce/static/src/xml/product_mapping.xml

@@ -144,6 +144,8 @@
                                             <th>WC Sale</th>
                                             <th class="text-center"><i class="fa fa-exchange" title="Price Sync"/></th>
                                             <th>Odoo Price</th>
+                                            <th>Cost</th>
+                                            <th>Margin %</th>
                                             <th>Instance</th>
                                             <th>Price Sync</th>
                                             <th>Inventory Sync</th>
@@ -216,6 +218,28 @@
                                                     </t>
                                                     <t t-else="" t-esc="this.formatPrice(p.odoo_price)"/>
                                                 </td>
+                                                <td class="text-end woo-editable-cell" t-on-click.stop="() => this.startEdit(p.id, 'odoo_cost', p.odoo_cost)">
+                                                    <t t-if="this.isEditing(p.id, 'odoo_cost')">
+                                                        <input type="number" step="0.01" min="0" class="woo-edit-input"
+                                                               t-att-value="state.editValue"
+                                                               t-on-input="onEditInput"
+                                                               t-on-keydown="onEditKeydown"
+                                                               t-on-blur="onEditBlur"
+                                                        />
+                                                    </t>
+                                                    <t t-else="" t-esc="this.formatPrice(p.odoo_cost)"/>
+                                                </td>
+                                                <td class="text-end woo-editable-cell woo-margin-cell" t-on-click.stop="() => this.startEdit(p.id, 'margin', this.calcMargin(p.odoo_cost, p.odoo_price))">
+                                                    <t t-if="this.isEditing(p.id, 'margin')">
+                                                        <input type="number" step="0.1" min="0" max="99.9" class="woo-edit-input"
+                                                               t-att-value="state.editValue"
+                                                               t-on-input="onEditInput"
+                                                               t-on-keydown="onEditKeydown"
+                                                               t-on-blur="onEditBlur"
+                                                        />
+                                                    </t>
+                                                    <t t-else="" t-esc="this.formatMargin(p.odoo_cost, p.odoo_price)"/>
+                                                </td>
                                                 <td><t t-esc="p.instance_name"/></td>
                                                 <td>
                                                     <input type="checkbox"