package com.gmgauthier.soapmock.controllers;

import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import java.io.File;
import java.io.IOException;
import java.io.StringReader;
import java.nio.file.Files;
import java.util.Objects;

@RestController
@RequestMapping(
        consumes = MediaType.TEXT_XML_VALUE,
        produces = MediaType.TEXT_XML_VALUE)
public class MockController {

    @PostMapping(path ="/call1")
    public String postCall1(@RequestBody String xmlRequestBody) throws Exception {
        Document xmlRequest = parseRequestBody(xmlRequestBody);

        Element root = xmlRequest.getDocumentElement();
        NodeList nodeList = root.getChildNodes();
        System.out.println(root.getNodeName());

        for (int i = 0; i < nodeList.getLength(); i++){
            System.out.println(nodeList.item(i).getNodeName());
            System.out.println(nodeList.item(i).getNodeValue());
        }

        return getStaticResponse("soap-example.xml");
    }

    private String  getStaticResponse(String fileName){
        File file = null;
        String content = null;
        String filePath = "static/responses/" + fileName;
        ClassLoader classLoader = getClass().getClassLoader();

        try {
            file = new File(
                    Objects.requireNonNull(classLoader
                            .getResource(filePath)).getFile());
        } catch (NullPointerException e) {
            e.printStackTrace();}
        try {
            assert file != null;
            content = new String(Files.readAllBytes(file.toPath()));
        } catch (IOException e) {
            e.printStackTrace();}
        return content;
    }

    private Document parseRequestBody(String xmlRequestBody) throws Exception {
        DocumentBuilderFactory dBfactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = dBfactory.newDocumentBuilder();
        Document document =
                builder.parse(new InputSource(new StringReader(xmlRequestBody)));
        document.getDocumentElement().normalize();
        return document;
    }
}