refactoring, adding cli to edit config

cmd/cli/commands/add/add.go

@@ -0,0 +1,85 @@
+package add
+
+import (
+	"context"
+	customflag "downloadhub/cmd/cli/flag"
+	"downloadhub/pkg/data"
+	"flag"
+	"fmt"
+	"os"
+
+	"github.com/google/subcommands"
+	"github.com/google/uuid"
+)
+
+type (
+	AddCmd struct {
+		slug           string
+		description    string
+		version        string
+		iconURL        string
+		out            string
+		screenshotURLs customflag.Array
+	}
+)
+
+func (*AddCmd) Name() string     { return "add" }
+func (*AddCmd) Synopsis() string { return "add an entry" }
+func (*AddCmd) Usage() string {
+	return `Usage: ./cli add [OPTIONS] NAME
+
+Options:
+`
+}
+
+func (p *AddCmd) SetFlags(f *flag.FlagSet) {
+	f.StringVar(&p.slug, "slug", "", "")
+	f.StringVar(&p.description, "description", "", "")
+	f.StringVar(&p.version, "version", "0.0.0", "")
+	f.StringVar(&p.iconURL, "icon", "", "an url or a path to the icon")
+	f.StringVar(&p.out, "out", "./config.json", "path to the configuration file")
+	f.Var(&p.screenshotURLs, "screenshot", "an url or a path to a screenshot file")
+}
+
+func (p *AddCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
+	if len(p.slug) == 0 {
+		p.slug = uuid.NewString()
+	}
+
+	if len(p.screenshotURLs) == 0 {
+		p.screenshotURLs = make(customflag.Array, 0)
+	}
+
+	if f.NArg() == 0 {
+		fmt.Fprintln(os.Stderr, "error: name cannot be empty")
+		return subcommands.ExitUsageError
+	}
+
+	if f.NArg() > 1 {
+		fmt.Fprintln(os.Stderr, "error: this command cannot take more than 1 argument")
+		return subcommands.ExitUsageError
+	}
+
+	d, err := data.Load(p.out)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "error:", err)
+		return subcommands.ExitFailure
+	}
+
+	d.Softwares = append(d.Softwares, data.Software{
+		Slug:           p.slug,
+		Name:           f.Arg(0),
+		Description:    p.description,
+		Version:        p.version,
+		IconURL:        p.iconURL,
+		ScreenshotURLs: p.screenshotURLs,
+		DownloadLinks:  make([]data.DownloadLink, 0),
+	})
+
+	if err := data.Save(d, p.out); err != nil {
+		fmt.Fprintln(os.Stderr, "error:", err)
+		return subcommands.ExitFailure
+	}
+
+	return subcommands.ExitSuccess
+}