New files for stdev calculation for v0.2

static/rollcalc_improvements.js

@@ -0,0 +1,128 @@
+/**
+ * ROLLCALC IMPROVEMENTS V14
+ * Article selection + automatic weight calculation
+ */
+
+function populateArticleDropdowns_v14() {
+  const data = window.ARTICLE_DATA || [];
+  console.log('[ArticleDropdown] Populating with', data.length, 'articles');
+  
+  ['d-art', 'e-art'].forEach(function(inputId) {
+    const dl = document.getElementById(inputId + '-list');
+    if (!dl) return;
+    
+    data.forEach(function(article) {
+      const displayText = article.nr + ' – ' + article.name;
+      const opt = document.createElement('option');
+      opt.value = displayText;
+      opt.dataset.articleNr = article.nr;
+      opt.dataset.thickness = article.thickness || 0;
+      opt.dataset.areaWeight = article.area_weight || 0;
+      opt.dataset.width = extractWidthFromName(article.name) || 0;
+      opt.dataset.stddev_thickness = article.thickness_stddev || 0;
+      opt.dataset.stddev_areaweight = article.area_weight_stddev || 0;
+      dl.appendChild(opt);
+    });
+  });
+  
+  const dArt = document.getElementById('d-art');
+  if (dArt) {
+    dArt.addEventListener('input', function() {
+      const inputVal = dArt.value.trim();
+      const match = data.find(function(a) {
+        const displayText = a.nr + ' – ' + a.name;
+        return displayText === inputVal || inputVal.startsWith(a.nr + ' –') || inputVal === a.nr;
+      });
+      
+      if (match) {
+        document.getElementById('d-th').value = match.thickness || 0;
+        document.getElementById('d-th').dataset.stddev = match.thickness_stddev || 0;
+        
+        if (match.area_weight && match.area_weight > 0) {
+          document.getElementById('d-aw').value = match.area_weight;
+          document.getElementById('d-aw').dataset.stddev = match.area_weight_stddev || 0;
+        }
+        
+        const extractedWidth = extractWidthFromName(match.name);
+        if (extractedWidth > 0) {
+          document.getElementById('de-wi').value = extractedWidth;
+        }
+        
+        setTimeout(function() {
+          triggerAutoWeightCalculation();
+        }, 100);
+      }
+    });
+  }
+  
+  document.querySelectorAll('.core-preset-btn').forEach(function(btn) {
+    btn.addEventListener('click', function() {
+      const coreVal = btn.dataset.core;
+      const pane = btn.closest('.tab-pane');
+      if (pane) {
+        const inp = pane.querySelector('input[id$="-co"]');
+        if (inp) {
+          inp.value = coreVal;
+          pane.querySelectorAll('.core-preset-btn').forEach(function(b) { b.classList.remove('active'); });
+          btn.classList.add('active');
+        }
+      }
+    });
+  });
+}
+
+function extractWidthFromName(productName) {
+  if (!productName) return 0;
+  const match = productName.match(/(\d+[,\.]\d+)\s*x\s*\d+\s*m/i);
+  if (match && match[1]) {
+    const widthStr = match[1].replace(',', '.');
+    const width = parseFloat(widthStr);
+    if (width > 0 && width < 100) return width;
+  }
+  return 0;
+}
+
+function triggerAutoWeightCalculation() {
+  const wiEl = document.getElementById('de-wi');
+  const awEl = document.getElementById('d-aw');
+  const LEL = document.getElementById('d-le');
+  const resultEl = document.getElementById('d-wo');
+  
+  if (!wiEl || !awEl || !LEL || !resultEl) return;
+  
+  const wi = parseFloat(wiEl.value) || 0;
+  const aw = parseFloat(awEl.value) || 0;
+  const L = parseFloat(LEL.value) || 0;
+  
+  if (wi > 0 && aw > 0 && L > 0) {
+    const weight = (aw * L * wi / 1000).toFixed(1);
+    resultEl.value = weight;
+    console.log('[AutoCalc] Weight: ' + weight + ' kg');
+    return true;
+  }
+  return false;
+}
+
+function setupWeightCalculationListeners() {
+  const inputIds = ['de-wi', 'd-aw', 'd-le'];
+  inputIds.forEach(function(id) {
+    const el = document.getElementById(id);
+    if (el) {
+      el.addEventListener('change', triggerAutoWeightCalculation);
+      el.addEventListener('blur', triggerAutoWeightCalculation);
+    }
+  });
+}
+
+window.RollCalcV14 = {
+  populateArticleDropdowns_v14: populateArticleDropdowns_v14,
+  triggerAutoWeightCalculation: triggerAutoWeightCalculation,
+  extractWidthFromName: extractWidthFromName
+};
+
+document.addEventListener('DOMContentLoaded', function() {
+  if (window.ARTICLE_DATA && window.ARTICLE_DATA.length > 0) {
+    populateArticleDropdowns_v14();
+    setupWeightCalculationListeners();
+  }
+});