package main

import (
	"fmt"
	"io"
	"os"

	"github.com/spf13/cobra"

	"go.bigb.es/confluence-md-utilities/converter"
)

var xml2mdOutput string

var xml2mdCmd = &cobra.Command{
	Use:   "xml2md [input.xml]",
	Short: "Convert Confluence XML to Markdown",
	Long:  "Convert a Confluence storage format XML file to Markdown. Reads from stdin if no file is specified.",
	Args:  cobra.MaximumNArgs(1),
	RunE: func(cmd *cobra.Command, args []string) error {
		var input []byte
		var err error

		if len(args) > 0 {
			input, err = os.ReadFile(args[0])
		} else {
			input, err = io.ReadAll(os.Stdin)
		}
		if err != nil {
			return fmt.Errorf("reading input: %w", err)
		}

		result, err := converter.ConfluenceToMarkdown(string(input))
		if err != nil {
			return fmt.Errorf("converting: %w", err)
		}

		if xml2mdOutput != "" {
			return os.WriteFile(xml2mdOutput, []byte(result), 0644)
		}
		fmt.Print(result)
		return nil
	},
}

func init() {
	xml2mdCmd.Flags().StringVarP(&xml2mdOutput, "output", "o", "", "Output file (default: stdout)")
	rootCmd.AddCommand(xml2mdCmd)
}