package com.juick.www.controllers;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.regex.Pattern;

/**
 * Created by aalexeev on 11/21/16.
 */
@Controller
public class ShowMessageController {
    private static final Pattern USER_NAME_PATTERN = Pattern.compile("[a-zA-Z-_\\d]{2,16}");

    private static final Pattern POST_NUMBER_PATTERN = Pattern.compile("\\d+");

    private final Logger logger = LoggerFactory.getLogger(getClass());


    @RequestMapping("/{anything}")
    public String parseAnything(
            @PathVariable String anything,
            @RequestParam(required = false, defaultValue = "0") int before,
            Model model) {

        boolean isUsername = USER_NAME_PATTERN.matcher(anything).matches();
        boolean isPostNumber = POST_NUMBER_PATTERN.matcher(anything).matches();

        return "redirect:/";
    }

    @RequestMapping("/{userName}/{postNumber}")
    public String checkShowPost(
            @PathVariable String userName,
            @PathVariable String postNumber,
            @RequestParam(required = false, defaultValue = "0") int before,
            Model model) {

        if (!USER_NAME_PATTERN.matcher(userName).matches() ||
                !POST_NUMBER_PATTERN.matcher(postNumber).matches()) {
            logger.warn("Invalid user name or post number, user name \"{}\", post number \"{}\"", userName, postNumber);
            return "redirect:/";
        }

        return "index";
    }
}