package org.gcube.social_networking.social_networking_client_library;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;

import javax.ws.rs.core.GenericType;

import org.apache.commons.lang.Validate;
import org.gcube.portal.databook.shared.*;

import org.gcube.social_networking.social_networking_client_library.utils.HttpClient;
import org.gcube.social_networking.socialnetworking.model.beans.PostInputBean;
import org.gcube.social_networking.socialnetworking.model.output.ResponseBean;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Posts client.
 * @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
 */
public class PostClient extends BaseClient{

	private static final String SUB_SERVICE_PATH = "2/posts/";
	private static Logger logger = LoggerFactory.getLogger(PostClient.class);


	public PostClient() throws Exception {
		super(SUB_SERVICE_PATH);
	}

	/**
	 * Get posts since date
	 * @return
	 */
	public List<Post> getUserPostsSinceDate(long timeInMillis){

		Validate.isTrue(timeInMillis >= 0, "time cannot be negative");

		logger.debug("Request for getting posts");
		String thisMethodSignature = "get-posts-user-since";
		String request =  getServiceEndpoint() + thisMethodSignature + "?time=" + timeInMillis;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	/**
	 * Get all posts
	 * @return
	 */
	public List<Post> getAllUserPosts(){

		logger.debug("Request for getting posts");
		String thisMethodSignature = "get-posts-user";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	/**
	 * Get posts quantity
	 * @return
	 */
	public List<Post> getUserPostsQuantity(int quantity){

		Validate.isTrue(quantity >= 0, "quantity cannot be negative");

		logger.debug("Request for getting posts");
		String thisMethodSignature = "get-posts-user-quantity";
		String request =  getServiceEndpoint() + thisMethodSignature + "?quantity=" + quantity;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	/**
	 * Write post
	 * @return
	 */
	public Post writeUserPost(PostInputBean toWrite){

		Validate.isTrue(toWrite != null, "Post to write cannot be null");

		logger.debug("Request for writing post");
		String thisMethodSignature = "write-post-user";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.post(new GenericType<ResponseBean<Post>>(){}, request, toWrite);

	}

	/**
	 * Get posts application (token set must belong to the application)
	 * @return
	 */
	public List<Post> getAllApplicationPosts(){

		logger.debug("Request for getting posts");
		String thisMethodSignature = "get-posts-app";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	/**
	 * Write post application (token set must belong to the application)
	 * @return
	 */
	public Post writeApplicationPost(PostInputBean toWrite){

		Validate.isTrue(toWrite != null, "Post to write cannot be null");

		logger.debug("Request for writing application post");
		String thisMethodSignature = "write-post-app";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.post(new GenericType<ResponseBean<Post>>(){}, request, toWrite);

	}

	/**
	 * @deprecated use  List<Post> getVREPosts()
	 * Get posts vre
	 * @return
	 */
	public List<Feed> getPostsVRE(){

		logger.debug("Request for getting posts vre");
		String thisMethodSignature = "get-posts-vre";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Feed>>>(){}, request);

	}
	/**
	 * Get posts vre
	 * @return
	 */
	public List<Post> getVREPosts(){

		logger.debug("Request for getting posts vre");
		String thisMethodSignature = "get-posts-vre";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	/**
	 * Get posts hashtag
	 * @return
	 * @throws UnsupportedEncodingException 
	 */
	public List<Post> getHashtagPosts(String hashtag) throws UnsupportedEncodingException{

		Validate.isTrue(hashtag != null, "hashtag cannot be null");

		logger.debug("Request for getting posts with hashtag " + hashtag);
		String thisMethodSignature = "get-posts-by-hashtag";
		String request =  getServiceEndpoint() + thisMethodSignature + "?hashtag=" + URLEncoder.encode(hashtag, "UTF-8");
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	/**
	 * Get liked posts 
	 * @return
	 */
	public List<Post> getUserLikedPost(){

		logger.debug("Request for getting posts liked");
		String thisMethodSignature = "get-liked-posts";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	/**
	 * Get liked posts ids
	 * @return
	 */
	public List<String> getUserLikedPostIds(){

		logger.debug("Request for getting posts liked");
		String thisMethodSignature = "get-id-liked-posts";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<String>>>(){}, request);

	}



	//library api calls

	public boolean saveUserPostLib(Post post){
		Validate.isTrue(post != null, "Post to write cannot be null");

		logger.debug("Request for save user post");
		String thisMethodSignature = "save-user-post-lib";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.post(new GenericType<ResponseBean<Boolean>>(){}, request, post);
	} //bool

	public boolean saveAttachmentEntryLib(String key, Attachment attachment){
		Validate.isTrue(attachment != null, "attachment to write cannot be null");

		logger.debug("Request for save attachment");
		String thisMethodSignature = "save-attachment-entry-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?postid=" + key;
		return HttpClient.post(new GenericType<ResponseBean<Boolean>>(){}, request, attachment);
	}

	public boolean saveAppPostLib(Post post){
		Validate.isTrue(post != null, "Post to write cannot be null");

		logger.debug("Request for saving application post");
		String thisMethodSignature = "save-app-post-lib";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.post(new GenericType<ResponseBean<Boolean>>(){}, request, post);
	}   //bool

	public boolean savePostToVRETimelineLib(String postkey, String vreid){
		Validate.isTrue(postkey != null, "Post to write cannot be null");

		logger.debug("Request for writing post to vretimeline");
		String thisMethodSignature = "save-post-to-vretimeline-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?postid=" + postkey + "&vreid=" + vreid;
		return HttpClient.post(new GenericType<ResponseBean<Boolean>>(){}, request, postkey);
	}  //bool

	public Post readPostLib(String postid){
		logger.debug("Request for getting post with id");
		String thisMethodSignature = "read-post-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?postid=" + postid;
		return HttpClient.get(new GenericType<ResponseBean<Post>>(){}, request);
	}    //post

	public List<Post> getRecentPostsByUserAndDateLib(String userid, long timeinmillis){
		logger.debug("Request for getting recent posts by user");
		String thisMethodSignature = "get-recent-posts-by-user-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?userid=" + userid + "&time=" + timeinmillis;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);
	}  //list<post>

	public boolean deletePostLib(String postid){
		Validate.isTrue(postid != null, "feed to delete cannot be null");

		logger.debug("Request for delete user post");
		String thisMethodSignature = "delete-post-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?postid=" + postid;
		return HttpClient.post(new GenericType<ResponseBean<Boolean>>(){}, request, postid);
	}   //bool

	public List<Post> getAllPostsByUserLib(String userid) {
		logger.debug("Request for getting all posts by user");
		String thisMethodSignature = "get-all-posts-by-user-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?userid=" + userid ;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);
	}

	public List<Post> getAllPostsByAppLib(String appid) {
		logger.debug("Request for getting all posts by app");
		String thisMethodSignature = "get-all-posts-by-app-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?appid=" + appid ;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	public List<Post> getRecentCommentedPostsByUserAndDateLib(String userid,
														   long timeInMillis) {
		logger.debug("Request for getting recent commented posts by user and date");
		String thisMethodSignature = "get-recent-commented-posts-by-user-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?userid=" + userid + "&time=" + timeInMillis;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	public List<Post> getAllPortalPrivacyLevelPostsLib(){
		logger.debug("Request for getting portal privacy level posts");
		String thisMethodSignature = "get-portal-privacy-level-posts-lib";
		String request =  getServiceEndpoint() + thisMethodSignature;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);
	}   //list<post>

	public List<Post> getRecentPostsByUserLib(String userid, int quantity) {
		logger.debug("Request for getting recent posts by user");
		String thisMethodSignature = "get-recent-posts-by-user-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?userid=" + userid + "&quantity=" + quantity ;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);
	}

	public List<Post> getAllPostsByVRELib(String vreid) {
		logger.debug("Request for getting all posts by vre");
		String thisMethodSignature = "get-all-posts-by-vre-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?vreid=" + vreid ;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);
	}

	public List<Post> getRecentPostsByVRELib(String vreid, int quantity) {
		logger.debug("Request for getting recent posts by vre");
		String thisMethodSignature = "get-recent-posts-by-vre-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?vreid=" + vreid + "&quantity=" + quantity ;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Post>>>(){}, request);

	}

	public RangePosts getRecentPostsByVREAndRangeLib(String vreid, int from, int quantity) {
		logger.debug("Request for getting recent posts by vre and range");
		String thisMethodSignature = "get-recent-posts-by-vre-range-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?vreid=" + vreid + "&from=" + from + "&quantity=" + quantity;
		return HttpClient.get(new GenericType<ResponseBean<RangePosts>>(){}, request);
	}

	public List<Attachment> getAttachmentsByFeedIdLib(String feedId) {
		logger.debug("Request for getting attachment by postid");
		String thisMethodSignature = "get-attachment-by-postid-lib";
		String request =  getServiceEndpoint() + thisMethodSignature + "?postid=" + feedId ;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<Attachment>>>(){}, request);
	}

	public List<String> getAllVREIdsLib(){
		logger.debug("Request for getting all vre ids");
		String thisMethodSignature = "get-all-vre-ids-lib";
		String request =  getServiceEndpoint() + thisMethodSignature ;
		return HttpClient.get(new GenericType<ResponseBean<ArrayList<String>>>(){}, request);
	}

}