package commands

import (
	"fmt"
	"slices"

	"gitea.codeblob.work/pk/hoster/internals/conf"
	"gitea.codeblob.work/pk/hoster/internals/helpers"
	"github.com/urfave/cli/v2"
)

func CmdCheckPort(c *cli.Context) error {
	sitesAvail := conf.App.MustString("nginx.sitesAvailable")
	existingProjects, err := helpers.FindHostConfigs(sitesAvail)
	if err != nil {
		return err
	}

	usedPorts := []int{}
	for _, project := range existingProjects {
		usedPorts = append(usedPorts, project.InternalPort)
	}

	port := conf.App.Int("nginx.portRangeStart")
	freePort := 0
	for port <= conf.App.Int("nginx.portRangeEnd") {
		if !slices.Contains(usedPorts, port) && helpers.IsFreePort(port) {
			freePort = port
			break
		}
		port++
	}

	if freePort == 0 {
		return fmt.Errorf("no free port available")
	}

	fmt.Printf("Free port: %d\n", freePort)
	return nil
}