Refactor and remove sqlite and replace with MySQL

internal/helpers/ballslice.go

@@ -0,0 +1,50 @@
+package helpers
+
+import (
+	"database/sql"
+	"synlotto-website/models"
+)
+
+func BuildBallsSlice(t models.Ticket) []int {
+	balls := []int{t.Ball1, t.Ball2, t.Ball3, t.Ball4, t.Ball5}
+	if t.GameType == "Lotto" && t.Ball6 > 0 {
+		balls = append(balls, t.Ball6)
+	}
+
+	return balls
+}
+
+func BuildBonusSlice(t models.Ticket) []int {
+	var bonuses []int
+	if t.Bonus1 != nil {
+		bonuses = append(bonuses, *t.Bonus1)
+	}
+	if t.Bonus2 != nil {
+		bonuses = append(bonuses, *t.Bonus2)
+	}
+
+	return bonuses
+}
+
+// BuildBallsFromNulls builds main balls from sql.NullInt64 values
+func BuildBallsFromNulls(vals ...sql.NullInt64) []int {
+	var result []int
+	for _, v := range vals {
+		if v.Valid {
+			result = append(result, int(v.Int64))
+		}
+	}
+	return result
+}
+
+// BuildBonusFromNulls builds bonus balls from two sql.NullInt64 values
+func BuildBonusFromNulls(b1, b2 sql.NullInt64) []int {
+	var result []int
+	if b1.Valid {
+		result = append(result, int(b1.Int64))
+	}
+	if b2.Valid {
+		result = append(result, int(b2.Int64))
+	}
+	return result
+}