minor rework and filter dimensions

cmd/cli/commands/categories.go

@@ -0,0 +1,101 @@
+package commands
+
+import (
+	"context"
+	"fmt"
+
+	"git.loyso.art/frx/eway/cmd/cli/components"
+
+	"github.com/rodaine/table"
+	"github.com/rs/zerolog"
+	"github.com/urfave/cli/v3"
+)
+
+func CategoriesCommandTree() *cli.Command {
+	var h categoriesHandlers
+
+	return &cli.Command{
+		Name:  "categories",
+		Usage: "Interact with stored categories",
+		Commands: []*cli.Command{
+			newCategoriesListCommand(h),
+		},
+	}
+}
+
+func newCategoriesListCommand(h categoriesHandlers) *cli.Command {
+	cmd := cli.Command{
+		Name:  "list",
+		Usage: "List categories, stories in db",
+		Flags: []cli.Flag{
+			&cli.IntFlag{
+				Name:  "limit",
+				Usage: "limits output to selected items",
+				Value: 20,
+			},
+			&cli.IntFlag{
+				Name:  "page",
+				Usage: "in case of limit, selects page",
+				Value: 0,
+			},
+			&cli.BoolFlag{
+				Name:  "with-total",
+				Usage: "prints total count of categories",
+			},
+		},
+	}
+
+	return cmdWithAction(cmd, h.List)
+}
+
+type categoriesHandlers struct{}
+
+func (categoriesHandlers) List(ctx context.Context, c *cli.Command) error {
+	r, err := components.GetRepository()
+	if err != nil {
+		return fmt.Errorf("getting repository: %w", err)
+	}
+
+	categories, err := r.Category().List(ctx)
+	if err != nil {
+		return fmt.Errorf("listing categories: %w", err)
+	}
+
+	limit := int(c.Int("limit"))
+	page := int(c.Int("page"))
+	total := len(categories)
+
+	if page == 0 {
+		page = 1
+	}
+
+	if limit > 0 {
+		offset := (page - 1) * limit
+		if offset > len(categories) {
+			offset = len(categories) - 1
+		}
+
+		limit = offset + limit
+		if limit > len(categories) {
+			limit = len(categories)
+		}
+
+		categories = categories[offset:limit]
+	}
+
+	tbl := table.New("ID", "Name")
+	for _, category := range categories {
+		if category.ID == 0 && category.Name == "" {
+			continue
+		}
+		tbl.AddRow(category.ID, category.Name)
+	}
+
+	tbl.Print()
+
+	if c.Bool("with-total") {
+		zerolog.Ctx(ctx).Info().Int("count", total).Msg("total categories stats")
+	}
+
+	return nil
+}