feat: Enhance CSV parser to dynamically map quantity, name, finish, and ID columns from headers for robust custom imports.

docs/development/CENTRAL.md

@@ -8,3 +8,4 @@
 ## Recent Completions
 - [Game Battlefield & Manual Mode](./devlog/2025-12-14-234500_game_battlefield_plan.md): Completed.
 - [Helm Chart Config](./devlog/2025-12-14-214500_helm_config.md): Completed.
+- [CSV Import Robustness](./devlog/2025-12-16-152253_csv_import_robustness.md): Completed. Enhanced CSV parser to dynamically map columns from headers, supporting custom user imports.

docs/development/devlog/2025-12-16-152253_csv_import_robustness.md

@@ -0,0 +1,21 @@
+
+# CSV Import Robustness Update
+
+## Background
+The user provided a specific CSV format associated with typical automated imports. The requirement was to extract relevant information (Quantity, Name, Finish, Scryfall ID) while ignoring other fields (such as Condition, Date Added, etc.).
+
+## Changes
+- Refactored `src/client/src/services/CardParserService.ts` to implement dynamic header parsing.
+- The `parse` method now:
+  - Detects if the first line is a CSV header containing "Quantity" and "Name".
+  - Maps columns to indices based on the header.
+  - Specifically looks for `Quantity`, `Name`, `Finish`, and `Scryfall ID` (checking common variations like 'scryfall_id', 'id', 'uuid').
+  - Uses strictly mapped columns if a header is detected, ensuring other fields are ignored as requested.
+  - Falls back gracefully to previous generic parsing logic if no matching header is found, preserving backward compatibility with Arena/MTGO exports and simple lists.
+
+## Verification
+- Verified manually via a test script that the provided CSV content parses correctly into the `CardIdentifier` memory structure.
+- The extraction correctly identifies Quantity, Name, Finish (Normal/Foil), and Scryfall UUID.
+
+## Next Steps
+- Ensure the frontend `CubeManager` works seamlessly with this update (no changes needed there as it uses the service).

src/client/src/services/CardParserService.ts

@@ -11,53 +11,105 @@ export class CardParserService {
     const rawCardList: CardIdentifier[] = [];
     const uuidRegex = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/i;
 
+    let colMap = { qty: 0, name: 1, finish: 2, id: -1, found: false };
+
+    // Check header to determine column indices dynamically
+    if (lines.length > 0) {
+      const headerLine = lines[0].toLowerCase();
+      // Heuristic: if it has Quantity and Name, it's likely our CSV
+      if (headerLine.includes('quantity') && headerLine.includes('name')) {
+        const headers = this.parseCsvLine(lines[0]).map(h => h.toLowerCase().trim());
+        const qtyIndex = headers.indexOf('quantity');
+        const nameIndex = headers.indexOf('name');
+
+        if (qtyIndex !== -1 && nameIndex !== -1) {
+          colMap.qty = qtyIndex;
+          colMap.name = nameIndex;
+          colMap.finish = headers.indexOf('finish');
+          // Find ID column: could be 'scryfall id', 'scryfall_id', 'id'
+          colMap.id = headers.findIndex(h => h === 'scryfall id' || h === 'scryfall_id' || h === 'id' || h === 'uuid');
+          colMap.found = true;
+
+          // Remove header row
+          lines.shift();
+        }
+      }
+    }
+
     lines.forEach(line => {
-      // Skip header
+      // Skip generic header repetition if it occurs
       if (line.toLowerCase().startsWith('quantity') && line.toLowerCase().includes('name')) return;
 
+      // Try parsing as CSV line first if we detected a header or if it looks like CSV
+      const parts = this.parseCsvLine(line);
+
+      // If we have a detected map, use it strict(er)
+      if (colMap.found && parts.length > Math.max(colMap.qty, colMap.name)) {
+        const qty = parseInt(parts[colMap.qty]);
+        if (!isNaN(qty)) {
+          const name = parts[colMap.name];
+          let finish: 'foil' | 'normal' | undefined = undefined;
+
+          if (colMap.finish !== -1 && parts[colMap.finish]) {
+            const finishRaw = parts[colMap.finish].toLowerCase();
+            finish = (finishRaw === 'foil' || finishRaw === 'etched') ? 'foil' : (finishRaw === 'normal' ? 'normal' : undefined);
+          } else if (!colMap.found) {
+            // Legacy fallback for default indices if header wasn't found but we are in this block (shouldn't happen with colMap.found=true logic)
+            const finishRaw = parts[2]?.toLowerCase();
+            finish = (finishRaw === 'foil' || finishRaw === 'etched') ? 'foil' : (finishRaw === 'normal' ? 'normal' : undefined);
+          }
+
+          let idValue: string | null = null;
+
+          // If we have an ID column, look there
+          if (colMap.id !== -1 && parts[colMap.id]) {
+            const match = parts[colMap.id].match(uuidRegex);
+            if (match) idValue = match[0];
+          }
+
+          // If not found in column (or no column), check if there's a UUID anywhere in the line? 
+          // The user said "ignore other fields". So strictly adhering to columns is better. 
+          // BUT, to be safe for mixed usages (e.g. if ID is missing in col but present elsewhere? Unlikely).
+          // Let's stick to the mapped column if available. 
+
+          // If we didn't find an ID in the specific column, but we have a generic UUID in the line? 
+          // The original logic did `parts.find`. 
+          // If `colMap.found` is true, we should trust it. 
+
+          if (idValue) {
+            rawCardList.push({ type: 'id', value: idValue, quantity: qty, finish });
+            return;
+          } else if (name) {
+            rawCardList.push({ type: 'name', value: name, quantity: qty, finish });
+            return;
+          }
+        }
+      }
+
+      // --- Fallback / Original Logic for non-header formats or failed parsings ---
+
       const idMatch = line.match(uuidRegex);
       if (idMatch) {
-        // Extract quantity if present before ID, otherwise default to 1
+        // It has a UUID, try to extract generic CSV info if possible
-        // Simple check: Look for "Nx ID" or "N, ID" pattern? 
-        // The previous/standard logic usually treats ID lines as 1x unless specified. 
-        // Let's try to find a quantity at the start if it exists differently from UUID.
-        // But usually UUID lines are direct from export.
-
-        // But our CSV template puts ID at the end.
-        // If UUID is present anywhere in the line, we might trust it over the name.
-        // Let's stick to the previous logic: if UUID is found, use it.
-        // BUT, we should try to parse the whole CSV line if possible to get Finish and Quantity.
-
-        // Let's parse with CSV logic first.
-        const parts = this.parseCsvLine(line);
         if (parts.length >= 2) {
           const qty = parseInt(parts[0]);
-          // If valid CSV structure
           if (!isNaN(qty)) {
-            // const name = parts[1]; // We can keep name for reference, but we use ID if present
+            // Assuming default 0=Qty, 2=Finish if no header map found
             const finishRaw = parts[2]?.toLowerCase();
             const finish = (finishRaw === 'foil' || finishRaw === 'etched') ? 'foil' : (finishRaw === 'normal' ? 'normal' : undefined);
 
-            // If the last part has UUID, use it.
+            // Use the regex match found
-            const uuidPart = parts.find(p => uuidRegex.test(p));
+            rawCardList.push({ type: 'id', value: idMatch[0], quantity: qty, finish });
-            if (uuidPart) {
+            return;
-              const uuid = uuidPart.match(uuidRegex)![0];
-              rawCardList.push({ type: 'id', value: uuid, quantity: qty, finish });
-              return;
-            }
           }
         }
-
+        // Just ID flow
-        // Fallback ID logic
+        rawCardList.push({ type: 'id', value: idMatch[0], quantity: 1 });
-        rawCardList.push({ type: 'id', value: idMatch[0], quantity: 1 }); // Default simple UUID match
         return;
       }
 
-      // Not an ID match, try parsing as name
+      // Name-based generic parsing (Arena/MTGO or simple CSV without ID)
-      const parts = this.parseCsvLine(line);
-
       if (parts.length >= 2 && !isNaN(parseInt(parts[0]))) {
-        // It looks like result of our CSV: Quantity, Name, Finish, ...
         const quantity = parseInt(parts[0]);
         const name = parts[1];
         const finishRaw = parts[2]?.toLowerCase();
@@ -69,18 +121,16 @@ export class CardParserService {
         }
       }
 
-      // Fallback to simple Arena/MTGO text format: "4 Lightning Bolt"
+      // "4 Lightning Bolt" format
       const cleanLine = line.replace(/['"]/g, '');
       const simpleMatch = cleanLine.match(/^(\d+)[xX\s]+(.+)$/);
       if (simpleMatch) {
         let name = simpleMatch[2].trim();
-        // cleanup
+        name = name.replace(/\s*[\(\[].*?[\)\]]/g, '');
-        name = name.replace(/\s*[\(\[].*?[\)\]]/g, ''); // remove set codes
+        name = name.replace(/\s+\d+$/, '');
-        name = name.replace(/\s+\d+$/, ''); // remove collector number
 
         rawCardList.push({ type: 'name', value: name, quantity: parseInt(simpleMatch[1]) });
       } else {
-        // Maybe just "Lightning Bolt" (1x)
         let name = cleanLine.trim();
         if (name) {
           rawCardList.push({ type: 'name', value: name, quantity: 1 });