package quotas

import (
	"context"
	"fmt"

	"github.com/stackitcloud/stackit-cli/internal/pkg/types"

	"github.com/spf13/cobra"
	"github.com/stackitcloud/stackit-cli/internal/pkg/args"
	"github.com/stackitcloud/stackit-cli/internal/pkg/errors"
	"github.com/stackitcloud/stackit-cli/internal/pkg/examples"
	"github.com/stackitcloud/stackit-cli/internal/pkg/globalflags"
	"github.com/stackitcloud/stackit-cli/internal/pkg/print"
	"github.com/stackitcloud/stackit-cli/internal/pkg/services/alb/client"
	"github.com/stackitcloud/stackit-cli/internal/pkg/tables"
	"github.com/stackitcloud/stackit-cli/internal/pkg/utils"
	"github.com/stackitcloud/stackit-sdk-go/services/alb"
)

type inputModel struct {
	*globalflags.GlobalFlagModel
}

func NewCmd(params *types.CmdParams) *cobra.Command {
	cmd := &cobra.Command{
		Use:   "quotas",
		Short: "Shows the application load balancer quotas",
		Long:  "Shows the application load balancer quotas for the application load balancers.",
		Args:  args.NoArgs,
		Example: examples.Build(
			examples.NewExample(
				`List all application load balancer quotas`,
				`$ stackit beta alb quotas`,
			),
		),
		RunE: func(cmd *cobra.Command, args []string) error {
			ctx := context.Background()
			model, err := parseInput(params.Printer, cmd, args)
			if err != nil {
				return err
			}

			// Configure API client
			apiClient, err := client.ConfigureClient(params.Printer, params.CliVersion)
			if err != nil {
				return err
			}

			// Call API
			request := buildRequest(ctx, model, apiClient)

			response, err := request.Execute()
			if err != nil {
				return fmt.Errorf("get quotas: %w", err)
			}

			if response == nil {
				params.Printer.Outputln("no quotas found")
				return nil
			}

			if err := outputResult(params.Printer, model.OutputFormat, *response); err != nil {
				return fmt.Errorf("output loadbalancers: %w", err)
			}

			return nil
		},
	}

	return cmd
}

func parseInput(p *print.Printer, cmd *cobra.Command, _ []string) (*inputModel, error) {
	globalFlags := globalflags.Parse(p, cmd)
	if globalFlags.ProjectId == "" {
		return nil, &errors.ProjectIdError{}
	}

	model := inputModel{
		GlobalFlagModel: globalFlags,
	}

	p.DebugInputModel(model)
	return &model, nil
}

func buildRequest(ctx context.Context, model *inputModel, apiClient *alb.APIClient) alb.ApiGetQuotaRequest {
	request := apiClient.GetQuota(ctx, model.ProjectId, model.Region)

	return request
}

func outputResult(p *print.Printer, outputFormat string, response alb.GetQuotaResponse) error {
	return p.OutputResult(outputFormat, response, func() error {
		table := tables.NewTable()
		table.AddRow("REGION", utils.PtrString(response.Region))
		table.AddSeparator()
		table.AddRow("MAX LOADBALANCERS", utils.PtrString(response.MaxLoadBalancers))
		err := table.Display(p)
		if err != nil {
			return fmt.Errorf("render table: %w", err)
		}

		return nil
	})
}
