Load the directory model from the layered Veracross import

internal/data/data.go

@@ -3,40 +3,35 @@ package data
 
 import (
 	"encoding/csv"
-	"fmt"
 	"os"
 	"path/filepath"
 )
 
 type Source interface {
-	Table(app, name string) ([]map[string]string, error)
+	Table(app, name string) ([]string, []map[string]string, error)
 }
 
 type Dir struct {
 	Root string
 }
 
-func (d Dir) Table(app, name string) ([]map[string]string, error) {
+func (d Dir) Table(app, name string) ([]string, []map[string]string, error) {
 	f, err := os.Open(filepath.Join(d.Root, app, name+".csv"))
 	if err != nil {
-		return nil, err
+		return nil, nil, err
 	}
 	defer f.Close()
 	rows, err := csv.NewReader(f).ReadAll()
 	if err != nil {
-		return nil, err
+		return nil, nil, err
 	}
-	if len(rows) == 0 {
-		return nil, fmt.Errorf("table %s/%s has no header row", app, name)
-	}
-	header := rows[0]
-	records := []map[string]string{}
-	for _, row := range rows[1:] {
-		record := map[string]string{}
-		for i, column := range header {
-			record[column] = row[i]
+	values := make([][]interface{}, len(rows))
+	for i, row := range rows {
+		cells := make([]interface{}, len(row))
+		for j, cell := range row {
+			cells[j] = cell
 		}
-		records = append(records, record)
+		values[i] = cells
 	}
-	return records, nil
+	return parseTable(name, values)
 }