package config

import (
	"fmt"
	"os"

	"github.com/spf13/cobra"

	"github.com/wild-cloud/wild-cli/internal/config"
	"github.com/wild-cloud/wild-cli/internal/environment"
)

var checkMode bool

func newGetCommand() *cobra.Command {
	cmd := &cobra.Command{
		Use:   "get <path>",
		Short: "Get a configuration value",
		Long: `Get a configuration value from config.yaml using a dot-notation path.

Examples:
  wild config get cluster.name
  wild config get apps.myapp.replicas
  wild config get services[0].name`,
		Args: cobra.ExactArgs(1),
		RunE: runGet,
	}

	cmd.Flags().BoolVar(&checkMode, "check", false, "exit 1 if key doesn't exist (no output)")

	return cmd
}

func runGet(cmd *cobra.Command, args []string) error {
	path := args[0]

	// Initialize environment
	env := environment.New()

	// Try to detect WC_HOME from current directory or flags
	if wcHome := cmd.Flag("wc-home").Value.String(); wcHome != "" {
		env.SetWCHome(wcHome)
	} else {
		detected, err := env.DetectWCHome()
		if err != nil {
			return fmt.Errorf("failed to detect Wild Cloud project directory: %w", err)
		}
		if detected == "" {
			return fmt.Errorf("this command requires a Wild Cloud project directory. Run 'wild setup scaffold' to create one, or run from within an existing project")
		}
		env.SetWCHome(detected)
	}

	if err := env.RequiresProject(); err != nil {
		return err
	}

	// Create config manager
	mgr := config.NewManager(env.ConfigPath(), env.SecretsPath())

	// Get the value
	value, err := mgr.Get(path)
	if err != nil {
		if checkMode {
			os.Exit(1)
		}
		return fmt.Errorf("getting config value: %w", err)
	}

	// Handle null/missing values
	if value == nil {
		if checkMode {
			os.Exit(1)
		}
		return fmt.Errorf("key path '%s' not found in config file", path)
	}

	// In check mode, exit 0 if key exists (don't output value)
	if checkMode {
		return nil
	}

	// Output the value
	fmt.Println(value)
	return nil
}