Initial commit.

configuration/feed.go

@@ -0,0 +1,48 @@
+package configuration
+
+import (
+	"errors"
+	"fmt"
+	"net/url"
+)
+
+var (
+	errDestIsEmpty   = errors.New("dest is empty")
+	errFeedValidate  = errors.New("feed configuration validation")
+	errNameIsEmpty   = errors.New("name is empty")
+	errOutputIsEmpty = errors.New("output is empty")
+	errURLIsEmpty    = errors.New("URL is empty")
+)
+
+// Feed is a single RSS feed configuration.
+type Feed struct {
+	Name        string `json:"name"`
+	URL         string `json:"url"`
+	Output      string `json:"output"`
+	Destination string `json:"dest"`
+}
+
+// Validate validates RSS feed configuration.
+func (f *Feed) Validate() error {
+	if f.Name == "" {
+		return fmt.Errorf("%w: %w", errFeedValidate, errNameIsEmpty)
+	}
+
+	if f.Output == "" {
+		return fmt.Errorf("%w: %w", errFeedValidate, errOutputIsEmpty)
+	}
+
+	if f.Destination == "" {
+		return fmt.Errorf("%w: %w", errFeedValidate, errDestIsEmpty)
+	}
+
+	if f.URL == "" {
+		return fmt.Errorf("%w: %w", errFeedValidate, errURLIsEmpty)
+	}
+
+	if _, err := url.Parse(f.URL); err != nil {
+		return fmt.Errorf("%w: parse feed URL: %w", errFeedValidate, err)
+	}
+
+	return nil
+}