Lots of things, mainly models and CSV parser

model/birthdays.go

@@ -0,0 +1,53 @@
+package model
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+type Birthday struct {
+	Name         string
+	Email        string
+	Phone        string
+	YearOfBirth  int
+	MonthOfBirth int
+	DayOfBirth   int
+}
+
+func NewBirthdayFromRecord(record []string) (*Birthday, error) {
+	if len(record) != 4 {
+		return nil, fmt.Errorf("invalid length %d for record", len(record))
+	}
+
+	dateComponents := strings.Split(strings.TrimSpace(record[3]), "/")
+	if len(dateComponents) != 3 {
+		return nil, fmt.Errorf("invalid date format in %q", strings.TrimSpace(record[3]))
+	}
+
+	dayOfBirth, err := strconv.Atoi(dateComponents[0])
+	if err != nil {
+		return nil, fmt.Errorf("error parsing day of birth from %q: %w", dateComponents[0], err)
+	}
+
+	monthOfBirth, err := strconv.Atoi(dateComponents[1])
+	if err != nil {
+		return nil, fmt.Errorf("error parsing month of birth from %q: %w", dateComponents[1], err)
+	}
+
+	yearOfBirth, err := strconv.Atoi(dateComponents[2])
+	if err != nil {
+		return nil, fmt.Errorf("error parsing year of birth from %q: %w", dateComponents[2], err)
+	}
+
+	b := &Birthday{
+		Name:         strings.TrimSpace(record[0]),
+		Email:        strings.TrimSpace(record[1]),
+		Phone:        strings.TrimSpace(record[2]),
+		YearOfBirth:  yearOfBirth,
+		MonthOfBirth: monthOfBirth,
+		DayOfBirth:   dayOfBirth,
+	}
+
+	return b, nil
+}

model/birthdays_test.go

@@ -0,0 +1,44 @@
+package model
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewBirthdayFromRecord(t *testing.T) {
+	t.Run("should correctly parse different records", func(t *testing.T) {
+		testCases := []struct {
+			Record               []string
+			ExpectedName         string
+			ExpectedEmail        string
+			ExpectedPhone        string
+			ExpectedYearOfBirth  int
+			ExpectedMonthOfBirth int
+			ExpectedDayOfBirth   int
+		}{
+			{
+				Record:               []string{"John Doe  ", "john@doe.com", " 123456789", "17/04/2192"},
+				ExpectedName:         "John Doe",
+				ExpectedEmail:        "john@doe.com",
+				ExpectedPhone:        "123456789",
+				ExpectedYearOfBirth:  2192,
+				ExpectedMonthOfBirth: 4,
+				ExpectedDayOfBirth:   17,
+			},
+		}
+
+		for _, tc := range testCases {
+			t.Run(tc.ExpectedName, func(t *testing.T) {
+				b, err := NewBirthdayFromRecord(tc.Record)
+				require.NoError(t, err)
+				require.Equal(t, tc.ExpectedName, b.Name)
+				require.Equal(t, tc.ExpectedEmail, b.Email)
+				require.Equal(t, tc.ExpectedPhone, b.Phone)
+				require.Equal(t, tc.ExpectedYearOfBirth, b.YearOfBirth)
+				require.Equal(t, tc.ExpectedMonthOfBirth, b.MonthOfBirth)
+				require.Equal(t, tc.ExpectedDayOfBirth, b.DayOfBirth)
+			})
+		}
+	})
+}