// Package cmd implements the CLI command tree.
package cmd

import (
	"encoding/json"
	"fmt"
	"io"
	"os"

	"github.com/spf13/cobra"
)

// ---------------------------------------------------------------------------
// Bundle command group (PLATFORM-MANAGEMENT-API.md §5(b)):
//   molecule bundle export <workspace-id> [--file out.json]
//   molecule bundle import --file bundle.json   (or - for stdin)
// Tenant host, Org API Key (AdminAuth).
// ---------------------------------------------------------------------------

var bundleCmd = &cobra.Command{
	Use:   "bundle",
	Short: "Export and import workspace bundles",
}

func init() {
	bundleCmd.AddCommand(bundleExportCmd, bundleImportCmd)
	bundleExportCmd.Flags().StringVar(&bundleExportFile, "file", "", "Write bundle JSON to this file instead of stdout")
	bundleImportCmd.Flags().StringVar(&bundleImportFile, "file", "", "Read bundle JSON from this file (- for stdin)")
}

var (
	bundleExportFile string
	bundleImportFile string
)

var bundleExportCmd = &cobra.Command{
	Use:   "export <workspace-id>",
	Short: "Export a workspace as a bundle",
	Args:  cobra.ExactArgs(1),
	RunE:  runBundleExport,
}

func runBundleExport(_ *cobra.Command, args []string) error {
	raw, err := newClient().ExportBundle(args[0])
	if err != nil {
		return fmt.Errorf("bundle export: %w", err)
	}
	if bundleExportFile != "" {
		if err := os.WriteFile(bundleExportFile, raw, 0o600); err != nil {
			return fmt.Errorf("bundle export: write %s: %w", bundleExportFile, err)
		}
		fmt.Printf("Bundle written to %s\n", bundleExportFile)
		return nil
	}
	return printRaw(raw)
}

var bundleImportCmd = &cobra.Command{
	Use:   "import --file <bundle.json|->",
	Short: "Import a workspace bundle from a file or stdin",
	RunE:  runBundleImport,
}

func runBundleImport(_ *cobra.Command, _ []string) error {
	if bundleImportFile == "" {
		return &exitError{code: 2, msg: "bundle import: --file <path|-> is required"}
	}
	var data []byte
	var err error
	if bundleImportFile == "-" {
		data, err = io.ReadAll(os.Stdin)
	} else {
		data, err = os.ReadFile(bundleImportFile)
	}
	if err != nil {
		return fmt.Errorf("bundle import: read: %w", err)
	}
	if !json.Valid(data) {
		return &exitError{code: 2, msg: "bundle import: input is not valid JSON"}
	}
	raw, err := newClient().ImportBundle(json.RawMessage(data))
	if err != nil {
		return fmt.Errorf("bundle import: %w", err)
	}
	return printRaw(raw)
}