// Copyright © 2023 Ory Corp
// SPDX-License-Identifier: Apache-2.0

package identities

import (
	"fmt"

	"github.com/spf13/cobra"

	"github.com/ory/x/flagx"

	"github.com/ory/x/pagination/keysetclient"

	"github.com/ory/kratos/cmd/cliclient"
	"github.com/ory/x/cmdx"
)

func NewListCmd() *cobra.Command {
	c := &cobra.Command{
		Use:     "list",
		Aliases: []string{"ls"},
		Short:   "List resources",
	}
	c.AddCommand(NewListIdentitiesCmd())
	cliclient.RegisterClientFlags(c.PersistentFlags())
	cmdx.RegisterFormatFlags(c.PersistentFlags())
	return c
}

func NewListIdentitiesCmd() *cobra.Command {
	c := &cobra.Command{
		Use:   "identities",
		Short: "List identities",
		Long: `Return a list of identities.

The consistency defaults to ` + "`eventual`" + ` and can be set to ` + "`strong`" + ` or ` + "`eventual`" + `.
Eventual consistency means that the list operation will return faster and might not include recently created or updated identities. Replication lag is about 5 seconds.`,
		Example: "{{ .CommandPath }} --page-size 100 --consistency eventual",
		Args: func(cmd *cobra.Command, args []string) error {
			// zero or exactly two args
			if len(args) != 0 && len(args) != 2 {
				return fmt.Errorf("expected zero or two args, got %d: %+v", len(args), args)
			}
			return nil
		},
		RunE: func(cmd *cobra.Command, args []string) error {
			c, err := cliclient.NewClient(cmd)
			if err != nil {
				return err
			}

			consistency := flagx.MustGetString(cmd, "consistency")
			req := c.IdentityAPI.ListIdentities(cmd.Context()).Consistency(consistency)
			page, perPage, err := cmdx.ParseTokenPaginationArgs(cmd)
			if err != nil {
				return err
			}

			req = req.PageToken(page)
			req = req.PageSize(int64(perPage))

			identities, res, err := req.Execute()
			if err != nil {
				return cmdx.PrintOpenAPIError(cmd, err)
			}

			pages := keysetclient.ParseHeader(res)
			cmdx.PrintTable(cmd, &outputIdentityCollection{
				Identities:       identities,
				NextPageToken:    pages.NextToken,
				includePageToken: true,
			})
			return nil
		},
	}
	c.Flags().String("consistency", "eventual", "The read consistency to use. Can be either \"strong\" or \"eventual\". Defaults to \"eventual\".")
	cmdx.RegisterTokenPaginationFlags(c)
	return c
}