package org.iri_research.renkan.controller;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.iri_research.renkan.Constants;
import org.iri_research.renkan.models.Project;
import org.iri_research.renkan.models.Space;
import org.iri_research.renkan.repositories.ProjectsRepository;
import org.iri_research.renkan.repositories.SpacesRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort.Direction;
import org.springframework.data.web.PageableDefault;
import org.springframework.http.HttpStatus;
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.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/")
public class RenkanRootController {

    private final Logger logger = LoggerFactory
            .getLogger(RenkanRootController.class);

    @Autowired
    private ProjectsRepository projectsRepository;

    @Autowired
    private SpacesRepository spacesRepository;

    @RequestMapping(value = "", method = RequestMethod.GET, produces = { "text/html;charset=UTF-8" })
    public String renkanIndex(
            Model model,
            @PageableDefault(sort = { "created" }, direction = Direction.DESC, page = 0, value = Constants.PAGINATION_SIZE) Pageable p,
            HttpServletRequest request) {

        Page<Space> page = this.spacesRepository.findAll(p);

        model.addAttribute("page", page);
        model.addAttribute("baseUrl", Utils.buildBaseUrl(request));
        model.addAttribute("projectsCount",
                this.projectsRepository.getCountBySpace());

        return "renkanIndex";
    }

    @RequestMapping(value = "/s/{space_id}", method = RequestMethod.GET, produces = { "text/html;charset=UTF-8" })
    public ModelAndView spaceIndex(
            @PathVariable("space_id") String spaceId,
            @RequestParam(required = false) String filter,
            @PageableDefault(sort = { "updated", "created" }, direction = Direction.DESC, page = 0, value = Constants.PAGINATION_SIZE) Pageable p,
            HttpServletRequest request) {

        logger.debug("SpaceId : " + (spaceId == null ? "null" : spaceId));

        Map<String, Object> model = new HashMap<String, Object>();

        if ("_".equals(spaceId)) {
            spaceId = null;
        }

        Space space = this.spacesRepository.findOne(spaceId);

        if (null == space) {
            throw new HttpClientErrorException(HttpStatus.NOT_FOUND, "Space "
                    + spaceId + " not found.");
        }

        model.put("space", space);
        Page<Project> page;
        if (filter != null && !filter.isEmpty()) {
            page = this.projectsRepository.findBySpaceIdAndTitleRegex(spaceId,
                    filter, p);
        } else {
            page = this.projectsRepository.findBySpaceId(spaceId, p);
        }

        model.put("page", page);
        model.put("baseUrl", Utils.buildBaseUrl(request));

        return new ModelAndView("projectIndex", model);
    }

}
