/*
Copyright 2021 The Karmada Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package app

import (
	"context"

	"github.com/spf13/cobra"
	cliflag "k8s.io/component-base/cli/flag"
	"k8s.io/component-base/term"

	"github.com/karmada-io/karmada/cmd/aggregated-apiserver/app/options"
	"github.com/karmada-io/karmada/pkg/sharedcli"
	"github.com/karmada-io/karmada/pkg/sharedcli/klogflag"
	"github.com/karmada-io/karmada/pkg/util/names"
	"github.com/karmada-io/karmada/pkg/version/sharedcommand"
)

// NewAggregatedApiserverCommand creates a *cobra.Command object with default parameters
func NewAggregatedApiserverCommand(ctx context.Context) *cobra.Command {
	opts := options.NewOptions()

	cmd := &cobra.Command{
		Use: names.KarmadaAggregatedAPIServerComponentName,
		Long: `The karmada-aggregated-apiserver starts an aggregated server. 
It is responsible for registering the Cluster API and provides the ability to aggregate APIs, 
allowing users to access member clusters from the control plane directly.`,
		RunE: func(_ *cobra.Command, _ []string) error {
			if err := opts.Complete(); err != nil {
				return err
			}
			if err := opts.Validate(); err != nil {
				return err
			}
			if err := opts.Run(ctx); err != nil {
				return err
			}
			return nil
		},
	}

	fss := cliflag.NamedFlagSets{}

	genericFlagSet := fss.FlagSet("generic")
	opts.AddFlags(genericFlagSet)

	// Set klog flags
	logsFlagSet := fss.FlagSet("logs")
	klogflag.Add(logsFlagSet)

	cmd.AddCommand(sharedcommand.NewCmdVersion(names.KarmadaAggregatedAPIServerComponentName))
	cmd.Flags().AddFlagSet(genericFlagSet)
	cmd.Flags().AddFlagSet(logsFlagSet)

	cols, _, _ := term.TerminalSize(cmd.OutOrStdout())
	sharedcli.SetUsageAndHelpFunc(cmd, fss, cols)
	return cmd
}