package cmd

import (
	"encoding/json"
	"fmt"

	"git.db.org.ai/dborg/internal/formatter"
	"git.db.org.ai/dborg/internal/models"
	"github.com/spf13/cobra"
)

var usernameCmd = &cobra.Command{
	Use:     "username [username]",
	Aliases: []string{"un"},
	Short:   "Check username availability across websites",
	Long:    `Check username availability across hundreds of websites using WhatsMyName dataset`,
	Args:    argsOrStdin(1),
	RunE:    runUsernameCheck,
}

func init() {
	rootCmd.AddCommand(usernameCmd)
	usernameCmd.Flags().StringSliceP("sites", "s", []string{}, "Specific sites to check (comma-separated)")
	usernameCmd.Flags().BoolP("fuzzy", "f", false, "Enable fuzzy validation mode")
	usernameCmd.Flags().IntP("max_tasks", "m", 50, "Maximum concurrent tasks")
}

func runUsernameCheck(cmd *cobra.Command, args []string) error {
	c, err := newUnauthenticatedClient()
	if err != nil {
		return err
	}

	sites, _ := cmd.Flags().GetStringSlice("sites")
	fuzzy, _ := cmd.Flags().GetBool("fuzzy")
	maxTasks, _ := cmd.Flags().GetInt("max_tasks")

	return forEachQuery(args, func(username string) error {
		params := &models.USRSXParams{
			Username: username,
			Sites:    sites,
			Fuzzy:    fuzzy,
			MaxTasks: maxTasks,
		}
		return c.CheckUsernameStream(params, func(result json.RawMessage) error {
			if IsJSONOutput() {
				fmt.Println(string(result))
				return nil
			}
			var siteResult models.SiteResult
			if err := json.Unmarshal(result, &siteResult); err != nil {
				return err
			}
			return formatter.FormatUsernameSiteResult(&siteResult)
		})
	})
}