feat: update lake water data, implement service worker and manifest, and add favicon

scripts/scrapeLakes.ts

@@ -13,6 +13,7 @@ interface DataRecord {
   volume?: number;
   temperature?: number | null;
   precipitation?: number | null;
+  qn?: string;
 }
 
 // Parse date from DD.MM.YYYY HH:MM to ISO
@@ -91,24 +92,42 @@ async function scrapeLake(lakeId: string, oid: string, internalId: string) {
     });
 
     if (dataTable) {
-      dataTable.find('tr').each((i, row) => {
+      let qnColIndex = -1;
+      let flowColIndex = 2;
+      let levelColIndex = 1;
+
+      // Find column indices from header dynamically
+      $(dataTable).find('tr').first().find('th, td').each((idx, cell) => {
+        const headerText = $(cell).text().trim().toLowerCase();
+        if (headerText.includes('qn')) {
+          qnColIndex = idx;
+        } else if (headerText.includes('hladina') || headerText.includes('stav')) {
+          levelColIndex = idx;
+        } else if (headerText.includes('odtok') || headerText.includes('průtok') || headerText.includes('prutok') || headerText.includes('flow')) {
+          flowColIndex = idx;
+        }
+      });
+
+      $(dataTable).find('tr').each((i, row) => {
         if (i === 0) return; // skip header
         const cols = $(row).find('td');
-        if (cols.length >= 3) {
+        if (cols.length > Math.max(levelColIndex, flowColIndex)) {
           const rawDate = $(cols[0]).text().trim(); 
-          const levelStr = $(cols[1]).text().trim().replace(',', '.');
-          let flowStr = $(cols[2]).text().trim().replace(',', '.');
-          if (flowStr === '' && cols.length >= 4) {
-            flowStr = $(cols[3]).text().trim().replace(',', '.');
-          }
+          const levelStr = $(cols[levelColIndex]).text().trim().replace(',', '.');
+          const flowStr = $(cols[flowColIndex]).text().trim().replace(',', '.');
+          const qn = qnColIndex !== -1 && cols.length > qnColIndex ? $(cols[qnColIndex]).text().trim() : '';
 
           const parsedDateStr = parseDateString(rawDate);
           if (parsedDateStr) {
-            records.push({
+            const newRecord: DataRecord = {
               timestamp: parsedDateStr,
               level: parseFloat(levelStr) || 0,
               flow: parseFloat(flowStr) || 0
-            });
+            };
+            if (qn) {
+              newRecord.qn = qn;
+            }
+            records.push(newRecord);
           }
         }
       });
@@ -153,7 +172,8 @@ async function scrapeLake(lakeId: string, oid: string, internalId: string) {
           ...existing,
           ...item,
           inflow: item.inflow !== undefined ? item.inflow : existing.inflow,
-          volume: item.volume !== undefined ? item.volume : existing.volume
+          volume: item.volume !== undefined ? item.volume : existing.volume,
+          qn: item.qn !== undefined ? item.qn : existing.qn
         });
       } else {
         dataMap.set(item.timestamp, item);