package remote

import (
	"fmt"
	"io"
	"text/tabwriter"

	"git.cryptic.systems/fh-trier/go-flucky/pkg/config"
	"git.cryptic.systems/fh-trier/go-flucky/pkg/types"
)

func Add(remote *types.Remote, configDir string) error {

	configuration, err := config.Read(configDir)
	if err != nil {
		return err
	}

	// search after duplicate remote_names
	for _, r := range configuration.Remotes {
		if r.Name == remote.Name {
			return fmt.Errorf("Remote-Name %v already exists", remote.Name)
		}
	}

	configuration.Remotes = append(configuration.Remotes, remote)

	if err := config.Write(configuration, configDir); err != nil {
		return err
	}

	return nil
}

// Enable a remote link
func Enable(remoteName string, configDir string) error {

	cnf, err := config.Read(configDir)
	if err != nil {
		return err
	}

	// search after duplicate remote_names
	var found bool
	for _, r := range cnf.Remotes {
		if r.Name == remoteName {
			r.Enabled = true
			found = true
		}
	}

	if !found {
		return fmt.Errorf("Can not find remote %v", remoteName)
	}

	if err := config.Write(cnf, configDir); err != nil {
		return err
	}

	return nil
}

// Disable a remote link
func Disable(remoteName string, configDir string) error {

	cnf, err := config.Read(configDir)
	if err != nil {
		return err
	}

	// search after duplicate remote_names
	var found bool
	for _, r := range cnf.Remotes {
		if r.Name == remoteName {
			r.Enabled = false
			found = true
		}
	}

	if !found {
		return fmt.Errorf("Can not find remote %v", remoteName)
	}

	if err := config.Write(cnf, configDir); err != nil {
		return err
	}

	return nil
}

func Print(w io.Writer, configDir string) error {

	configuration, err := config.Read(configDir)
	if err != nil {
		return err
	}

	tw := tabwriter.NewWriter(w, 0, 0, 3, ' ', 0)

	fmt.Fprint(tw, "name\taddress\tenabled\tregistered\n")

	for _, remote := range configuration.Remotes {
		fmt.Fprintf(tw, "%v\t%v\t%v\t%v\n", remote.Name, remote.Address, remote.Enabled, remote.Registered)
	}

	tw.Flush()

	return nil
}

func Remove(name string, configDir string) error {

	con, err := config.Read(configDir)
	if err != nil {
		return err
	}

	var j int
	for _, remote := range con.Remotes {
		if remote.Name == name {
			con.Remotes = append(con.Remotes[:j], con.Remotes[j+1:]...)

			if j > 0 {
				j = j - 1
			}
			continue
		}
		j++
	}

	if err := config.Write(con, configDir); err != nil {
		return err
	}

	return nil
}

func RemoveAll(configDir string) error {

	con, err := config.Read(configDir)
	if err != nil {
		return err
	}

	con.Remotes = nil

	if err := config.Write(con, configDir); err != nil {
		return err
	}

	return nil
}