1 files changed, 65 insertions, 4 deletions
diff --git a/src_js/opcut/common.js b/src_js/opcut/common.js
index 3f39115..89088ac 100644
--- a/src_js/opcut/common.js
+++ b/src_js/opcut/common.js
@@ -1,16 +1,77 @@
+import * as URI from 'uri-js';
+import iziToast from 'izitoast';
 
+import r from 'opcut/renderer';
+import * as u from 'opcut/util';
 
 
-export function submit() {
+const calculateUrl = URI.resolve(window.location.href, './calculate');
+const generateOutputUrl = URI.resolve(window.location.href, './generate_output');
 
-}
 
+export function calculate() {
+    const msg = {
+        method: r.get('form', 'method'),
+        params: {
+            cut_width: u.strictParseFloat(r.get('form', 'cut_width')),
+            panels: u.pipe(
+                u.map(panel => [panel.name, {width: u.strictParseFloat(panel.width),
+                                             height: u.strictParseFloat(panel.height)}]),
+                u.fromPairs
+            )(r.get('form', 'panels', 'items')),
+            items: u.pipe(
+                u.map(item => [item.name, {width: u.strictParseFloat(item.width),
+                                           height: u.strictParseFloat(item.height),
+                                           can_rotate: item.can_rotate}]),
+                u.fromPairs
+            )(r.get('form', 'items', 'items')),
+        }
+    };
+    try {
+        validateCalculateRequest(msg);
+    } catch (e) {
+        showNotification(e, 'error');
+        return;
+    }
+    const req = new XMLHttpRequest();
+    req.onload = () => parseCalculateResponse(JSON.parse(req.responseText));
+    req.open('POST', calculateUrl);
+    req.setRequestHeader('Content-Type', 'application/json');
+    req.send(JSON.stringify(msg));
+}
 
-export function addPanel() {
 
+function validateCalculateRequest(msg) {
+    if (!Number.isFinite(msg.params.cut_width) || msg.params.cut_width < 0)
+        throw 'Invalid cut width';
+    if (u.equals(msg.params.panels, {}))
+        throw 'No panels defined';
+    for (let [name, panel] of u.toPairs(msg.params.panels)) {
+        if (!name)
+            throw 'Invalid panel name';
+        if (!Number.isFinite(panel.width) || panel.width <= 0)
+            throw 'Invalid width for panel ' + name;
+        if (!Number.isFinite(panel.height) || panel.height <= 0)
+            throw 'Invalid height for panel ' + name;
+    }
+    if (u.equals(msg.params.items, {}))
+        throw 'No items defined';
+    for (let [name, item] of u.toPairs(msg.params.items)) {
+        if (!name)
+            throw 'Invalid item name';
+        if (!Number.isFinite(item.width) || item.width <= 0)
+            throw 'Invalid width for item ' + name;
+        if (!Number.isFinite(item.height) || item.height <= 0)
+            throw 'Invalid height for item ' + name;
+    }
 }
 
 
-export function addItem() {
+function parseCalculateResponse(msg) {
+    
+}
+
 
+function showNotification(message, type) {
+    iziToast[type]({message: message});
 }