update

pkg/dadjoke/service.go

@@ -0,0 +1,66 @@
+package dadjoke
+
+import (
+	"errors"
+	"math/rand"
+)
+
+func (h *Handler) GetRandomDadJoke() (string, error) {
+	jokes, err := h.getDadJokes()
+	if err != nil {
+		return "", err
+	}
+
+	randomIndex := rand.Intn(len(jokes))
+
+	randomElement := jokes[randomIndex]
+
+	return randomElement.JOKE, err
+}
+
+func (h *Handler) PostDadJoke(joke DadJoke) error {
+	jokes, err := h.getDadJokes()
+	if err != nil {
+		return err
+	}
+
+	found := false
+	for _, i := range jokes {
+		if i.JOKE == joke.JOKE {
+			found = true
+			break
+		}
+	}
+
+	if found {
+		return errors.New("Joke is already in database")
+	} else {
+		err = h.db.Create(&joke).Error
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+}
+
+func (h *Handler) DeleteDadJoke(joke DadJoke) error {
+	check := &DadJoke{}
+	h.db.Where("joke = ?", joke.JOKE).First(check)
+	if check.JOKE == "" {
+		return errors.New("Joke does not exist")
+	}
+
+	err := h.db.Where("joke = ?", joke.JOKE).Delete(joke).Error
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (h *Handler) getDadJokes() ([]DadJoke, error) {
+	req := []DadJoke{}
+
+	err := h.db.Find(&req).Error
+
+	return req, err
+}