package com.mousetech.gourmetj;

import java.io.Serializable;

import javax.annotation.PostConstruct;
import javax.faces.event.AjaxBehaviorEvent;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.view.ViewScoped;
import javax.inject.Inject;
import javax.inject.Named;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

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

import com.mousetech.gourmetj.persistence.model.Recipe;
import com.mousetech.gourmetj.persistence.service.RecipeService;

/**
 * Main control panel backing bean.
 * 
 * @author timh
 * @since Jun 28, 2012
 */

@Named
@ViewScoped
public class AdminMainBean implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 2L;

	public AdminMainBean() {

	}

	/* Logger */

	private static final Logger log =
			LoggerFactory.getLogger(AdminMainBean.class);

	/**
	 * Persistency service for Recipes
	 */

	@Inject
	transient RecipeService recipeService;

	public void setRecipeService(RecipeService service) {
		log.debug("INJECT RECIPESERVICE===" + service);
		this.recipeService = service;
	}

	// **
	@Inject
	private UserSession userSession;

	/**
	 * @return the userSession
	 */
	public UserSession getUserSession() {
		return userSession;
	}

	/**
	 * @param userSession the userSession to set
	 */
	public void setUserSession(UserSession userSession) {
		this.userSession = userSession;
	}

	// **
	private String searchText;

	/**
	 * @return the searchText
	 */
	public String getSearchText() {
		if (this.searchResults == null) {
			// Fake around broken @PostConstruct
			this.setSearchText(userSession.getLastSearch());
		}
		return searchText;
	}

	/**
	 * @param searchText the searchText to set
	 */
	public void setSearchText(String searchText) {
		this.searchText = searchText;
		userSession.setLastSearch(searchText);
	}

	private List<String> suggestionList = null;

	public void resetSuggestions() {
		suggestionList = null;
	}

	public List<String> searchSuggestionList(String query) {
		if (suggestionList == null) {
			switch (this.userSession.getSearchType()) {
			case rst_BY_CATEGORY:
				suggestionList = recipeService.findCategories();
				break;
			case rst_BY_CUISINE:
				suggestionList = recipeService.findCuisines();
				break;
			default:
				suggestionList = new ArrayList<String>(1);
			}
		}
		return suggestionList;
	}

	/**/
	transient DataModel<Recipe> searchResults;

	/**
	 * @return the searchResults
	 */
	public DataModel<Recipe> getSearchResults() {
		if (searchResults == null) {
			searchResults = new ListDataModel<Recipe>();
			init(); // @PostConstruct is broken
		}
		return searchResults;
	}

	/**
	 * @param searchResults the searchResults to set
	 */
	public void setSearchResults(
			DataModel<Recipe> searchResults) {
		this.searchResults = searchResults;
	}

	/**
	 * Return to last search, if any No longer broken (required
	 * Maven include for annotation).
	 */
	@PostConstruct
	void init() {
		log.debug("Initializing AdminMainBean " + this);
		this.setSearchText(userSession.getLastSearch());
		// Clean up from any previous operations.
		this.userSession.setRecipe(null);
		doFind();
	}

	/**
	 * Search, driven by AJAX
	 * 
	 * @param event Notused
	 */
	public void ajaxUpdateList(AjaxBehaviorEvent event) {
		this.doFind();
	}

	/**
	 * Reset search and display
	 */
	public void ajaxClearList() {
		this.setSearchText("");
		this.doFind();
	}

	/**
	 * Finder
	 * 
	 * @return Navigation string
	 */
	public String doFind() {
		List<Recipe> recipes = null;

		switch (this.getUserSession().getSearchType()) {
		case rst_BY_NAME:
			recipes = recipeService.findByTitle(searchText);
			break;
		case rst_BY_CATEGORY:
			recipes =
					recipeService.findByCategoryLike(searchText);
			break;
		case rst_BY_CUISINE:
			recipes =
					recipeService.findByCuisineLike(searchText);
			break;
		case rst_BY_INGREDIENT:
			recipes = recipeService
				.findByIngredientLike(searchText);
			break;
		default:
			log.error("Invalid recipe search type: "
					+ this.getUserSession().getSearchType());
			break;
		}

		getSearchResults().setWrappedData(recipes);
		this.userSession.setLastSearch(this.getSearchText());
		return null; // Stay on page
	}

	/**
	 * Prep to create a new recipe
	 * 
	 * @return navigation to detailEdit page
	 */
	public String doNewRecipe() {
		// Clear for new recipe
		this.userSession.setLastEdit(null);
		// Construct a blank recipe to be created.
		this.userSession.setRecipe(new Recipe());
		return "detailEdit?faces-redirect=true";
	}

	/**
	 * Navigate to "More features" page (shopping list and
	 * maint.)
	 */
	public String doMore() {
		return "shoppingList.jsf?redirect=true";
	}

	/**
	 * Show selected recipe
	 * 
	 * @return
	 */
	public String showRecipe() {
		long recipeId = getSearchResults().getRowData().getId();
		// Flash Scope is buggy under Mojarra plus now using
		// session
//		JSFUtils.flashScope().put("recipeID",
//			Long.valueOf(recipeId));
		userSession.setLastEdit(recipeId);
		userSession.setRecipe(null); // forces loading of line
										// items.
		return "recipeDetails?faces-redirect=true";
	}

	/**
	 * Get printable preptime. Database version is in seconds.
	 * 
	 * @deprecated User {@link UserSession#formatTime(Long)}
	 * 
	 * @return Formatted time. Called from EL on main page.
	 */
	public String formatPreptime(int timesec) {
		StringBuffer sb = new StringBuffer(20);
		int preptime = timesec / 60;
		if (preptime > 60) {
			int hours = preptime / 60;
			sb.append(hours);
			sb.append(" h. ");
			preptime %= 60;
		}
		if (preptime > 0) {
			sb.append(preptime);
			sb.append(" min.");
		}
		return sb.toString();
	}
}