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
}