Implement assignment import and clear of budget

http/ynab-import.go

@@ -56,7 +56,61 @@ func NewYNABImport(q *postgres.Queries, budgetID uuid.UUID) (*YNABImport, error)
 
 }
 
-func (ynab *YNABImport) Import(r io.Reader) error {
+func (ynab *YNABImport) ImportAssignments(r io.Reader) error {
+	csv := csv.NewReader(r)
+	csv.Comma = '\t'
+	csv.LazyQuotes = true
+
+	csvData, err := csv.ReadAll()
+	if err != nil {
+		return fmt.Errorf("could not read from tsv: %w", err)
+	}
+
+	count := 0
+	for _, record := range csvData[1:] {
+		//"Month"	"Category Group/Category"	"Category Group"	"Category"	"Budgeted"	"Activity"	"Available"
+		//"Apr 2019"	"Income: Next Month"	"Income"	"Next Month"	0,00€	0,00€	0,00€
+		dateString := record[0]
+		date, err := time.Parse("Jan 2006", dateString)
+		if err != nil {
+			return fmt.Errorf("could not parse date %s: %w", dateString, err)
+		}
+
+		categoryGroup, categoryName := record[2], record[3] //also in 1 joined by :
+		category, err := ynab.GetCategory(categoryGroup, categoryName)
+		if err != nil {
+			return fmt.Errorf("could not get category %s/%s: %w", categoryGroup, categoryName, err)
+		}
+
+		amountString := record[4]
+		amount, err := GetAmount(amountString, "0,00€")
+		if err != nil {
+			return fmt.Errorf("could not parse amount %s: %w", amountString, err)
+		}
+
+		if amount.Int.Int64() == 0 {
+			continue
+		}
+
+		assignment := postgres.CreateAssignmentParams{
+			Date:       date,
+			CategoryID: category.UUID,
+			Amount:     amount,
+		}
+		_, err = ynab.queries.CreateAssignment(ynab.Context, assignment)
+		if err != nil {
+			return fmt.Errorf("could not save assignment %v: %w", assignment, err)
+		}
+
+		count++
+	}
+
+	fmt.Printf("Imported %d assignments\n", count)
+
+	return nil
+}
+
+func (ynab *YNABImport) ImportTransactions(r io.Reader) error {
 	csv := csv.NewReader(r)
 	csv.Comma = '\t'
 	csv.LazyQuotes = true
@@ -88,10 +142,10 @@ func (ynab *YNABImport) Import(r io.Reader) error {
 			return fmt.Errorf("could not get payee %s: %w", payeeName, err)
 		}
 
-		categoryGroup, categoryName := record[5], record[6] //also in 5 + 6 split by group/category
+		categoryGroup, categoryName := record[5], record[6] //also in 4 joined by :
 		category, err := ynab.GetCategory(categoryGroup, categoryName)
 		if err != nil {
-			return fmt.Errorf("could not get category %s: %w", payeeName, err)
+			return fmt.Errorf("could not get category %s/%s: %w", categoryGroup, categoryName, err)
 		}
 
 		memo := record[7]