package main

import (
	"encoding/xml"
	"flag"
	"fmt"
	"io/ioutil"
	"os"
)

type Questionnaire struct {
	XMLName xml.Name `xml:"questionnaire"`
	Section []struct {
		Question []struct {
			Text     string `xml:"text"`
			Response struct {
				Fixed struct {
					Category []struct {
						Label string `xml:"label"`
					} `xml:"category"`
				} `xml:"fixed"`
			} `xml:"response"`
		} `xml:"question"`
	} `xml:"section"`
}

func main() {
	flag.Parse()

	if len(flag.Args()) == 0 {
		panic("A filename should be provided")
	}

	xmlFile, err := os.Open(flag.Arg(0))
	if err != nil {
		fmt.Println(err)
		return
	}
	defer xmlFile.Close()

	byteValue, _ := ioutil.ReadAll(xmlFile)

	var questionnaire Questionnaire
	xml.Unmarshal(byteValue, &questionnaire)

	for i, section := range questionnaire.Section {
		for j, question := range section.Question {
			mdContent := question.Text + "\n\n"
			for _, answer := range question.Response.Fixed.Category {
				mdContent += "* " + answer.Label + "\n"
			}

			mdFileName := fmt.Sprintf("question_%d_%d.md", i+1, j+1)
			ioutil.WriteFile(mdFileName, []byte(mdContent), 0644)
		}
	}
}