package was.httpserver;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

import static java.nio.charset.StandardCharsets.UTF_8;
import static util.MyLogger.log;

public class HttpRequestHandler implements Runnable{
    private final Socket socket;
    private final ServletManager servletManager;


    public HttpRequestHandler(Socket socket, ServletManager servletManager) {
        this.socket = socket;
        this.servletManager = servletManager;
    }

    @Override
    public void run() {
        try{
            process();
        }catch (Exception e){
            log(e);
        }
    }

    private void process() throws IOException {
        try(socket;
            BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream(), UTF_8));
            PrintWriter writer = new PrintWriter(socket.getOutputStream(),false, UTF_8)){

            HttpRequest request = new HttpRequest(reader);
            HttpResponse response = new HttpResponse(writer);

            log("HTTP 요청: " + request);
            servletManager.excute(request, response);
            response.flush();
            log("HTTP 응답 완료");
        }
    }

    private void notFound(HttpResponse response) {
        response.setStatusCode(404);
        response.writeBody("<h1>404 페이지를 찾을 수 없습니다.</h1>");
        response.flush();
    }

    private void home(HttpResponse response) {
        response.writeBody("<h1>home</h1>");
        response.writeBody("<ul>");
        response.writeBody("<li><a href='/site1'>site1 </li>");
        response.writeBody("<li><a href='/site2'>site2 </li>");
        response.writeBody("<li><a href='/search?q=hello'>검색 </li>");
        response.writeBody("</ul>");
        response.flush();

    }
    private void site1(HttpResponse response) {
        response.writeBody("<h1>site1</h1>");
        response.flush();
    }

    private void site2(HttpResponse response) {
        response.writeBody("<h1>site2</h1>");
        response.flush();
    }

    private void search(HttpRequest request, HttpResponse response) {
        String query = request.getParameter("q");
        response.writeBody("<h1>Search</h1>");
        response.writeBody("<ul>");
        response.writeBody("<li>query : " + query + "</li>");
        response.writeBody("</ul>");
        response.flush();
    }

    private static String requsetToString(BufferedReader reader) throws IOException {
        StringBuilder sb = new StringBuilder();
        String line;
        while((line = reader.readLine())!= null ) {
            if(line.isEmpty()) break;
            sb.append(line).append("\n");
        }
        return sb.toString();
    }
}