package com.dive.Entity;


import com.dive.Configuration.DateFormatter;
import com.dive.JacksonConfiguration.View;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonView;

import javax.persistence.*;
import javax.validation.constraints.Email;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import java.util.*;


@Entity
@Table(name="users")
@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
public class ApplicationUser {

	@JsonView(View.UserInfo.class)
	@Id
	@GeneratedValue(strategy= GenerationType.IDENTITY)
	@Column(name="user_id")
	private int id;

	@JsonView(View.Internal.class)
	@Email
	@NotNull
	@Size(min = 3, max = 254)
	@Column(name = "email")
	private String username;

	@JsonView(View.UserInfo.class)
	@Column(name = "name")
	@Size(min = 2, max = 50)
	private String name;

	@JsonView(View.UserDescription.class)
	@Column(name = "description")
	private String description;

	@JsonView(View.Internal.class)
	@Column(name = "password")
	private String password;

	@Column(name = "enabled")
	private boolean enabled;

	@JsonView(View.MoreUserInfo.class)
	@Column(name = "country")
	private String country;

	@JsonView(View.MoreUserInfo.class)
	@Column(name = "place_of_residence")
	private String placeOfResidence;

	@JsonView(View.MoreUserInfo.class)
	@Temporal(TemporalType.TIMESTAMP)
	@Column(name = "since_when_in_app")
	private Date creationDate;

	@JsonView(View.MoreUserInfo.class)
	@Temporal(TemporalType.DATE)
	@Column(name = "birthday_date")
	private Date birthDate;

	@JsonView(View.MoreUserInfo.class)
	@Column(name = "gender")
	private String gender;

	@JsonView(View.UserInfo.class)
	@Column(name = "is_verified")
	private boolean isVerified;

	@JsonView(View.UserFriendsCount.class)
	@Transient
	private int friendsCount;

	@JsonView(View.UserFollowersCount.class)
	@Transient
	private int followersCount;

	@JsonView(View.UserIsFriend.class)
	@Transient
	private boolean isFriend;

	@JsonView(View.UserIsFollowed.class)
	@Transient
	private boolean isFollowed;

	@JsonView(View.MoreUserInfo.class)
	@Transient
	private boolean isRequestedToFriends;

	@JsonView(View.MoreUserInfo.class)
	@Transient
	private boolean haveRequestToFriendsFromUser;


	/**
	 * Contains user's friends in map
	 */
	@ManyToMany(fetch = FetchType.LAZY,
			cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "user_friends",
			joinColumns = {@JoinColumn(name = "user_id")},
			inverseJoinColumns = {@JoinColumn(name = "friend_id")})
	@MapKey(name = "id")
	private Map<Integer, ApplicationUser> friends;

	/**
	 * Contains user's friended  in map
	 */
	@ManyToMany(fetch = FetchType.LAZY,
			cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "user_friends",
			joinColumns = {@JoinColumn(name = "friend_id")},
			inverseJoinColumns = {@JoinColumn(name = "user_id")})
	@MapKey(name = "id")
	private Map<Integer, ApplicationUser> friendedByUsers;

	/**
	 * Contains user's posts
	 */
	@OneToMany(mappedBy = "applicationUser", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
	@MapKey(name = "id")
    private Map<Integer, Post> posts;

	/**
	 * Contains relation between two people
	 */
	@JsonView(View.MoreUserInfo.class)
	@OneToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
	@JoinColumn(name = "relationship_id")
    private Relationship relationship;

	@JsonView(View.UserPhoto.class)
	@OneToOne(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinColumn(name = "user_photo")
	private Post userPhotoPost;

	@JsonView(View.UserHeader.class)
	@OneToOne(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinColumn(name = "user_header")
	private Post userHeader;

	/**
	 * Contains user who follows particle user
	 */
	@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "follows_join_table", joinColumns = {@JoinColumn(name = "user_id")}, inverseJoinColumns = {@JoinColumn(name = "follower_id")})
	@MapKey(name = "id")
	private Map<Integer, ApplicationUser> followers;

	/**
	 * Contains users who user follows
	 */
	@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "follows_join_table", joinColumns = {@JoinColumn(name = "follower_id")}, inverseJoinColumns = {@JoinColumn(name = "user_id")})
	@MapKey(name = "id")
	private Map<Integer, ApplicationUser> followedUsers;

	@OneToMany(mappedBy = "requestedUser", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
	@MapKeyColumn(name = "user_id")
	private Map<Integer, FriendRequestEntity> usersRequestsToFriends;

	@OneToMany(mappedBy = "user", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
	@MapKeyColumn(name = "requested_user_id")
	private Map<Integer, FriendRequestEntity> usersRequestedToFriends;

	@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "loves_join_table", joinColumns = {@JoinColumn(name = "user_id")}, inverseJoinColumns = {@JoinColumn(name = "post_id")})
	@MapKey(name = "id")
	private Map<Integer, Post> lovedPosts;

	@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "group_tab_follows_join_table", joinColumns = {@JoinColumn(name = "user_id")}, inverseJoinColumns = {@JoinColumn(name = "group_tab_id")})
	@MapKey(name = "id")
	private Map<Integer, GroupTab> followedTabs;

	@OneToMany(mappedBy = "user",fetch = FetchType.LAZY, cascade = CascadeType.ALL)
	@MapKeyColumn(name = "group_id")
	private Map<Integer, UserJoinGroupRequest> groupsRequestedToJoin;

	@OneToMany(mappedBy = "groupUser", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
	@MapKeyColumn(name = "group_id")
	private Map<Integer, GroupUser> joinedGroups;

	@OneToMany(mappedBy = "invitedUser", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
	@MapKeyColumn(name = "group_id")
	private Map<Integer, GroupInvitation> invitesToJoinGroupFromGroups;

	@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "users_removed_from_groups", joinColumns = {@JoinColumn(name = "user_id")}, inverseJoinColumns = {@JoinColumn(name = "group_id")})
	@MapKey(name = "id")
	private Map<Integer, Group> removedFromGroups;

	@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
	@JoinTable(name = "hashtag_users_followers", joinColumns = {@JoinColumn(name = "user_id")}, inverseJoinColumns = {@JoinColumn(name = "hashtag_id")})
	@MapKey(name = "id")
	private Map<Integer, Hashtag> followedHashtags;

//	@OneToOne(fetch = FetchType.LAZY, mappedBy = "user", cascade = CascadeType.ALL)
//	private UserAccountVerificationEntity userAccountVerificationEntity;


	/**
	 * Contains user role (usually is ROLE_USER)
	 */
	@Column(name = "role")
    private String userRole;

	public ApplicationUser() {}

	public ApplicationUser(String username, String password) {
		this.username = username;
		this.password = password;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public boolean isEnabled() {
		return enabled;
	}

	public void setEnabled(boolean enabled) {
		this.enabled = enabled;
	}

	public String getUserRole() {
		return userRole;
	}

	public void setUserRole(String userRole) {
		this.userRole = userRole;
	}

	public Map<Integer, ApplicationUser> getFriends() {
		return friends;
	}

	public void setFriends(Map<Integer, ApplicationUser> friends) {
		this.friends = friends;
	}

	public Map<Integer, ApplicationUser> getFriendedByUsers() {
		return friendedByUsers;
	}

	public void setFriendedByUsers(Map<Integer, ApplicationUser> friendedByUsers) {
		this.friendedByUsers = friendedByUsers;
	}

	public Map<Integer, Post> getPosts() {
		return posts;
	}

	public void setPosts(Map<Integer, Post> posts) {
		this.posts = posts;
	}

	public Map<Integer, ApplicationUser> getFollowedUsers() {
		return followedUsers;
	}

	public void setFollowedUsers(Map<Integer, ApplicationUser> followedUsers) {
		this.followedUsers = followedUsers;
	}

	public Relationship getRelationship() {
        return relationship;
    }

    public void setRelationship(Relationship relationship) {
        this.relationship = relationship;
    }

	public Map<Integer, ApplicationUser> getFollowers() {
		return followers;
	}

	public void setFollowers(Map<Integer, ApplicationUser> followers) {
		this.followers = followers;
	}

	public Map<Integer, FriendRequestEntity> getUsersRequestsToFriends() {
		return usersRequestsToFriends;
	}

	public void setUsersRequestsToFriends(Map<Integer, FriendRequestEntity> usersRequestsToFriends) {
		this.usersRequestsToFriends = usersRequestsToFriends;
	}

	public Map<Integer, FriendRequestEntity> getUsersRequestedToFriends() {
		return usersRequestedToFriends;
	}

	public void setUsersRequestedToFriends(Map<Integer, FriendRequestEntity> usersRequestedToFriends) {
		this.usersRequestedToFriends = usersRequestedToFriends;
	}

	public Map<Integer, Post> getLovedPosts() {
		return lovedPosts;
	}

	public void setLovedPosts(Map<Integer, Post> lovedPosts) {
		this.lovedPosts = lovedPosts;
	}

	public boolean isFriend() {
		return isFriend;
	}

	public void setFriend(boolean friend) {
		isFriend = friend;
	}

	public boolean isRequestedToFriends() {
		return isRequestedToFriends;
	}

	public void setRequestedToFriends(boolean requestedToFriends) {
		isRequestedToFriends = requestedToFriends;
	}

	public boolean isHaveRequestToFriendsFromUser() {
		return haveRequestToFriendsFromUser;
	}

	public void setHaveRequestToFriendsFromUser(boolean haveRequestToFriendsFromUser) {
		this.haveRequestToFriendsFromUser = haveRequestToFriendsFromUser;
	}

	public Map<Integer, GroupTab> getFollowedTabs() {
		return followedTabs;
	}

	public void setFollowedTabs(Map<Integer, GroupTab> followedTabs) {
		this.followedTabs = followedTabs;
	}

	public boolean isFollowed() {
		return isFollowed;
	}

	public void setFollowed(boolean followed) {
		isFollowed = followed;
	}

	public Map<Integer, UserJoinGroupRequest> getGroupsRequestedToJoin() {
		return groupsRequestedToJoin;
	}

	public void setGroupsRequestedToJoin(Map<Integer, UserJoinGroupRequest> groupsRequestedToJoin) {
		this.groupsRequestedToJoin = groupsRequestedToJoin;
	}

	public Map<Integer, GroupUser> getJoinedGroups() {
		return joinedGroups;
	}

	public void setJoinedGroups(Map<Integer, GroupUser> joinedGroups) {
		this.joinedGroups = joinedGroups;
	}

	public Map<Integer, GroupInvitation> getInvitesToJoinGroupFromGroups() {
		return invitesToJoinGroupFromGroups;
	}

	public void setInvitesToJoinGroupFromGroups(Map<Integer, GroupInvitation> invitesToJoinGroupFromGroups) {
		this.invitesToJoinGroupFromGroups = invitesToJoinGroupFromGroups;
	}

	public Map<Integer, Group> getRemovedFromGroups() {
		return removedFromGroups;
	}

	public void setRemovedFromGroups(Map<Integer, Group> removedFromGroups) {
		this.removedFromGroups = removedFromGroups;
	}

	public String getDescription() {
		return description;
	}

	public void setDescription(String description) {
		this.description = description;
	}

	public String getCountry() {
		return country;
	}

	public void setCountry(String country) {
		this.country = country;
	}

	public String getPlaceOfResidence() {
		return placeOfResidence;
	}

	public void setPlaceOfResidence(String placeOfResidence) {
		this.placeOfResidence = placeOfResidence;
	}

	public String getCreationDate() {
		return DateFormatter.format(this.creationDate);
	}

	public void setCreationDate(Date creationDate) {
		this.creationDate = creationDate;
	}

	public String getBirthDate() {
		return DateFormatter.format(this.birthDate);
	}

	public void setBirthDate(Date birthDate) {
		this.birthDate = birthDate;
	}

	public Post getUserHeader() {
		return userHeader;
	}

	public void setUserHeader(Post userHeader) {
		this.userHeader = userHeader;
	}

	public String getGender() {
		return gender;
	}

	public void setGender(String gender) {
		this.gender = gender;
	}

	public boolean isVerified() {
		return isVerified;
	}

	public void setVerified(boolean verified) {
		isVerified = verified;
	}

//	public UserAccountVerificationEntity getUserAccountVerificationEntity() {
//		return userAccountVerificationEntity;
//	}
//
//	public void setUserAccountVerificationEntity(UserAccountVerificationEntity userAccountVerificationEntity) {
//		this.userAccountVerificationEntity = userAccountVerificationEntity;
//		userAccountVerificationEntity.setUser(this);
//	}

	public boolean lovePost(Post post) {
		if (lovedPosts == null) {
			lovedPosts = new LinkedHashMap<>();
		}

		if (!lovedPosts.containsKey(post.getId())) {
			lovedPosts.put(post.getId(), post);
			return true;
		}

		return false;
	}

	public boolean unlovePost(Post post) {
		if (lovedPosts == null) {
			lovedPosts = new LinkedHashMap<>();
		}

		Post removedPost = lovedPosts.remove(post.getId());
		return removedPost != null;
	}

	public boolean unlovePost(int postId) {
		if (lovedPosts == null) {
			lovedPosts = new LinkedHashMap<>();
		}

		Post removedPost = lovedPosts.remove(postId);
		return removedPost != null;
	}

	public boolean isPostLoved(Post post) {
		if (lovedPosts == null) {
			lovedPosts = new LinkedHashMap<>();
		}

		return lovedPosts.containsKey(post.getId());
	}

	public boolean addUserToFollow(ApplicationUser userToFollow) {
		if (followedUsers == null) {
			followedUsers = new LinkedHashMap<>();
		}

		if (!followedUsers.containsKey(userToFollow.getId())) {
			followedUsers.put(userToFollow.getId() ,userToFollow);
			return true;
		}

		return false;
	}

	public boolean unfollowUser(ApplicationUser user) {
		if (followedUsers == null) {
			followedUsers = new LinkedHashMap<>();
		}

		ApplicationUser removedUser = followedUsers.remove(user.getId());
		return removedUser != null;
	}

	public ApplicationUser getFollowedUser(int userId) {
		if (followedUsers == null) {
			followedUsers = new HashMap<>();
		}

		return followedUsers.get(userId);
	}

	public int getFriendsCount() {
		return friendsCount;
	}

	public void setFriendsCount(int friendsCount) {
		this.friendsCount = friendsCount;
	}

	public int getFollowersCount() {
		return followersCount;
	}

	public void setFollowersCount(int followersCount) {
		this.followersCount = followersCount;
	}

	public Post getUserPhotoPost() {
		return userPhotoPost;
	}

	public void setUserPhotoPost(Post userPhotoPost) {
		this.userPhotoPost = userPhotoPost;
	}

	/**
	 * Adds a friend to the friends list
	 * @param friend
	 */
	public void addFriend(ApplicationUser friend) {
		if (friends ==  null) {
			friends = new LinkedHashMap<>();
		}
		friends.put(friend.getId(), friend);
	}

	public boolean removeFriend(ApplicationUser friend) {
		if (friends == null) {
			friends = new LinkedHashMap<>();
		}

		ApplicationUser removedFriend1 = friends.remove(friend.getId());
		ApplicationUser removedFriend2 = friendedByUsers.remove(friend.getId());

		return removedFriend1 != null || removedFriend2 != null;
	}

	public boolean removeFriend(int friendId) {
		if (friends == null) {
			friends = new LinkedHashMap<>();
		}

		ApplicationUser removedFriend = friends.remove(friendId);
		return removedFriend != null;
	}

	public FriendRequestEntity getRequestToFriends(int userId) {
		if (usersRequestsToFriends == null) {
			usersRequestsToFriends = new HashMap<>();
		}

		return usersRequestsToFriends.get(userId);
	}

	public FriendRequestEntity getRequestedToFriends(int userId) {
		if (usersRequestsToFriends == null) {
			usersRequestedToFriends = new HashMap<>();
		}

		return usersRequestedToFriends.get(userId);
	}

	public boolean addFriendRequest(FriendRequestEntity friendRequest, ApplicationUser requestedUser) {
		if (usersRequestedToFriends == null) {
			usersRequestedToFriends = new HashMap<>();
		}

		if (!usersRequestedToFriends.containsKey(requestedUser.getId())) {
			friendRequest.setUser(this);
			friendRequest.setRequestedUser(requestedUser);
			requestedUser.addRequest(friendRequest, this.getId());
			usersRequestedToFriends.put(requestedUser.getId(), friendRequest);
			return true;
		}

		return false;
	}

	public void addRequest(FriendRequestEntity friendRequest, int userId) {
		if (usersRequestsToFriends == null) {
			usersRequestsToFriends = new HashMap<>();
		}

		usersRequestsToFriends.put(userId, friendRequest);
	}

	public FriendRequestEntity removeFromRequestedToFriends(int userId) {
		if (usersRequestedToFriends == null) {
			usersRequestedToFriends = new HashMap<>();
		}

		FriendRequestEntity deletedRequest = usersRequestedToFriends.remove(userId);

		return deletedRequest;
	}

	public FriendRequestEntity removeFromFriendRequests(int userId) {
		if (usersRequestsToFriends == null) {
			usersRequestsToFriends = new HashMap<>();
		}
		FriendRequestEntity deletedRequest = usersRequestsToFriends.remove(userId);

		return deletedRequest;
	}

	public void addPost(Post post) {
		if (posts ==  null) {
			posts = new LinkedHashMap<>();
		}

		posts.put(post.getId(), post);
		post.setApplicationUser(this);
	}

	public boolean containsPost(Post post) {
		if (posts == null) {
			posts = new LinkedHashMap<>();
		}

		return posts.containsKey(post.getId());
	}

	public UserJoinGroupRequest addRequestGroupToJoin(Group group) {
		if (groupsRequestedToJoin == null) {
			groupsRequestedToJoin = new HashMap<>();
		}

		UserJoinGroupRequest request = new UserJoinGroupRequest();
		request.setUser(this);
		request.setRequestDate(new Date());
		request.setRequestedGroup(group);

		groupsRequestedToJoin.put(group.getId(), request);
		return request;
	}

	public UserJoinGroupRequest getUserJoinGroupRequestByGroup(Group group) {
		if (groupsRequestedToJoin == null) {
			groupsRequestedToJoin = new HashMap<>();
		}

		return groupsRequestedToJoin.get(group.getId());
	}

	public GroupInvitation getGroupInvitationByGroup(Group group) {
		if (invitesToJoinGroupFromGroups == null) {
			invitesToJoinGroupFromGroups = new HashMap<>();
		}

		return invitesToJoinGroupFromGroups.get(group.getId());
	}

	public boolean containsFollowedGroupTab(GroupTab groupTab) {
		if (followedTabs == null) {
			followedTabs = new HashMap<>();
		}

		return followedTabs.containsKey(groupTab.getId());
	}

	public GroupTab unfollowGroupTab(GroupTab groupTab) {
		if (followedTabs == null) {
			followedTabs = new HashMap<>();
		}

		return followedTabs.remove(groupTab.getId());
	}

	public GroupTab followGroupTab(GroupTab groupTab) {
		if (followedTabs == null) {
			followedTabs = new HashMap<>();
		}

		if (!containsFollowedGroupTab(groupTab)) {
			followedTabs.put(groupTab.getId(), groupTab);
			return groupTab;
		} else {
			return null;
		}
	}

	public Map<Integer, Hashtag> getFollowedHashtags() {
		return followedHashtags;
	}

	public void setFollowedHashtags(Map<Integer, Hashtag> followedHashtags) {
		this.followedHashtags = followedHashtags;
	}

	public boolean isHashtagFollowed(Hashtag hashtag) {
		if (followedHashtags == null) {
			followedHashtags = new HashMap<>();
		}

		return followedHashtags.containsKey(hashtag.getId());
	}

	public Hashtag followHashtag(Hashtag hashtag) {
		if (followedHashtags == null) {
			followedHashtags = new HashMap<>();
		}

		if (!isHashtagFollowed(hashtag)) {
			followedHashtags.put(hashtag.getId(), hashtag);
			return hashtag;
		} else {
			return null;
		}
	}

	public Hashtag unfollowHashtag(Hashtag hashtag) {
		if (followedHashtags == null) {
			followedHashtags = new HashMap<>();
		}

		return followedHashtags.remove(hashtag.getId());
	}

	@Override
	public int hashCode() {
		return id + 57;
	}

	@Override
	public boolean equals(Object obj) {
		ApplicationUser user = (ApplicationUser) obj;

		return user.getId() == id;
	}

	@Override
	public String toString() {
		return "ApplicationUser{" +
				"id=" + id +
				", name='" + name + '\'' +
				'}';
	}
}