package kr.or.connect.guestbook.controller;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;

import kr.or.connect.guestbook.dto.Guestbook;
import kr.or.connect.guestbook.service.GuestbookService;

@Controller
public class GuestbookController {
	@Autowired
	GuestbookService guestbookService;

	@GetMapping(path="/list")
	public String list(@RequestParam(name="start", required=false, defaultValue="0") int start,
					   ModelMap model,
                       HttpServletRequest request,
					   HttpServletResponse response) {

        
		String value = null;
		boolean find = false;
		Cookie[] cookies = request.getCookies();
		if(cookies != null) {
			for(Cookie cookie : cookies) {
				if("count".equals(cookie.getName())) {
					find = true;
					value = cookie.getValue();
				}
			}
		}
		
      
		if(!find) {
			value = "1";
		}else { // 쿠키를 찾았다면.
			try {
				int i = Integer.parseInt(value);
				value = Integer.toString(++i);
			}catch(Exception ex) {
				value = "1";
			}
		}
		
   
		Cookie cookie = new Cookie("count", value);
		cookie.setMaxAge(60 * 60 * 24 * 365); // 1년 동안 유지.
		cookie.setPath("/"); // / 경로 이하에 모두 쿠키 적용. 
		response.addCookie(cookie);
		
		
		List<Guestbook> list = guestbookService.getGuestbooks(start);
		
		int count = guestbookService.getCount();
		int pageCount = count / GuestbookService.LIMIT;
		if(count % GuestbookService.LIMIT > 0)
			pageCount++;
		
		List<Integer> pageStartList = new ArrayList<>();
		for(int i = 0; i < pageCount; i++) {
			pageStartList.add(i * GuestbookService.LIMIT);
		}
		
		model.addAttribute("list", list);
		model.addAttribute("count", count);
		model.addAttribute("pageStartList", pageStartList);
		model.addAttribute("cookieCount", value); // jsp에게 전달하기 위해서 쿠키 값을 model에 담아 전송한다.
		
		return "list";
	}
	
	@PostMapping(path="/write")
	public String write(@ModelAttribute Guestbook guestbook,
						HttpServletRequest request) {
		String clientIp = request.getRemoteAddr();
		System.out.println("clientIp : " + clientIp);
		guestbookService.addGuestbook(guestbook, clientIp);
		return "redirect:list";
	}
}