Add CSV validation warnings and example CSV files

doc/examples/csv/README.md

@@ -0,0 +1,60 @@
+# CSV Import Examples
+
+This directory contains example CSV files for testing the CSV import functionality in EditDor.
+
+## Files
+
+### `valid.csv`
+
+A valid CSV file with correct data types and Modbus entities. This file should import without warnings.
+
+**Valid Types:**
+
+- `number`
+- `string`
+- `boolean`
+
+**Valid Modbus Entities:**
+
+- `HoldingRegister`
+- `InputRegister`
+- `Coil`
+- `DiscreteInput`
+
+### `invalid.csv`
+
+A CSV file with intentional validation issues to demonstrate the warning system. When imported, this file will trigger the following warnings:
+
+1. **Row 2, type**: `number123` is invalid (should be `number`, `string`, or `boolean`)
+2. **Row 2, modbus:entity**: `holdingregister` has incorrect casing (expected `HoldingRegister`)
+3. **Row 3, modbus:entity**: `InvalidRegister` is not a recognized Modbus entity
+4. **Row 4, type**: `invalid_type` is not a valid type
+5. **Row 5, modbus:entity**: `coil` has incorrect casing (expected `Coil`)
+
+## Usage
+
+1. Open EditDor
+2. Select "Thing Description" or "Thing Model"
+3. Click "Load a CSV File"
+4. Select either `valid.csv` or `invalid.csv`
+5. Observe the results:
+   - `valid.csv`: Should load successfully without warnings
+   - `invalid.csv`: Should display validation warnings but still load the data
+
+## CSV Format
+
+Required columns:
+
+- `name`: Property name (required)
+- `type`: Data type (number, string, or boolean)
+- `modbus:entity`: Modbus entity type
+- `modbus:address`: Modbus address (required)
+- `modbus:unitID`: Modbus unit ID
+- `modbus:quantity`: Number of registers
+- `modbus:zeroBasedAddressing`: Boolean (true/false)
+- `modbus:function`: Modbus function code
+- `modbus:mostSignificantByte`: Boolean (true/false)
+- `modbus:mostSignificantWord`: Boolean (true/false)
+- `href`: Property endpoint path
+
+Note: Modbus entity validation is case-insensitive for recognition purposes, but incorrect casing will produce a warning. For example, `coil` and `Coil` are treated as the same entity, but `coil` will generate a casing warning.

doc/examples/csv/invalid.csv

@@ -0,0 +1,6 @@
+name,type,modbus:entity,modbus:address,modbus:unitID,modbus:quantity,modbus:zeroBasedAddressing,modbus:function,modbus:mostSignificantByte,modbus:mostSignificantWord,href
+temp1,number123,holdingregister,40001,1,1,false,03,true,false,/temp
+humidity,number,InvalidRegister,40002,1,1,false,04,false,false,/humidity
+pressure,invalid_type,HoldingRegister,40003,1,2,true,03,true,true,/pressure
+status,string,coil,00001,1,1,false,01,false,false,/status
+alarm,boolean,DiscreteInput,10001,1,1,false,02,false,false,/alarm

doc/examples/csv/valid.csv

@@ -0,0 +1,6 @@
+name,type,modbus:entity,modbus:address,modbus:unitID,modbus:quantity,modbus:zeroBasedAddressing,modbus:function,modbus:mostSignificantByte,modbus:mostSignificantWord,href
+temperature,number,HoldingRegister,40001,1,1,false,03,true,false,/temp
+humidity,number,InputRegister,40002,1,1,false,04,false,false,/humidity
+pressure,number,HoldingRegister,40003,1,2,true,03,true,true,/pressure
+status,boolean,Coil,00001,1,1,false,01,false,false,/status
+alarm,boolean,DiscreteInput,10001,1,1,false,02,false,false,/alarm

src/components/App/CreateTd.tsx

@@ -85,15 +85,24 @@ const CreateTd: React.FC<CreateTdProps> = ({
           throw new Error("CSV file is empty.");
         }
 
-        const data = parseCsv(csvContent, true);
+        const { data, warnings } = parseCsv(csvContent, true);
 
         const parsed = mapCsvToProperties(data);
         if (!parsed || Object.keys(parsed).length === 0) {
           throw new Error("No valid properties found in the CSV file.");
         }
 
         setProperties(parsed);
-        setError({ open: false, message: "" });
+
+        // Display warnings if any
+        if (warnings.length > 0) {
+          const warningMessage = warnings
+            .map((w) => `Row ${w.row}, column "${w.column}": ${w.message}`)
+            .join("; ");
+          setError({ open: true, message: `Warnings: ${warningMessage}` });
+        } else {
+          setError({ open: false, message: "" });
+        }
       } catch (err) {
         setProperties({});
         setError({