/*
 * Copyright (C) 2008-2020, Juick
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.juick.service.security.entities;

import com.juick.model.AnonymousUser;
import com.juick.model.User;
import org.apache.commons.lang3.StringUtils;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;
import java.util.Collections;
import java.util.List;

/**
 * Created by aalexeev on 11/21/16.
 */
public class JuickUser implements UserDetails {
    static final GrantedAuthority ROLE_USER = new SimpleGrantedAuthority("ROLE_USER");
    static final GrantedAuthority ROLE_ADMIN = new SimpleGrantedAuthority("ROLE_ADMIN");
    static final GrantedAuthority ROLE_ANONYMOUS = new SimpleGrantedAuthority("ROLE_ANONYMOUS");

    public static final List<GrantedAuthority> USER_AUTHORITY = Collections.singletonList(ROLE_USER);
    public static final List<GrantedAuthority> ANONYMOUS_AUTHORITY = Collections.singletonList(ROLE_ANONYMOUS);
    public static final List<GrantedAuthority> ADMIN_AUTHORITY = List.of(ROLE_ADMIN, ROLE_USER);

    public static final JuickUser ANONYMOUS_USER = new JuickUser(AnonymousUser.INSTANCE, ANONYMOUS_AUTHORITY);

    private final User user;
    private final Collection<? extends GrantedAuthority> authorities;

    public JuickUser(User user) {
        this(user, USER_AUTHORITY);
    }

    public JuickUser(User user, Collection<? extends GrantedAuthority> authorities) {
        this.user = user;
        this.authorities = authorities;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return authorities;
    }

    @Override
    public String getPassword() {
        return "{noop}" + user.getCredentials();
    }

    @Override
    public String getUsername() {
        return user.getName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return StringUtils.isNotBlank(user.getCredentials());
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return isAccountNonLocked();
    }

    @Override
    public boolean isEnabled() {
        return !user.isBanned() && isCredentialsNonExpired();
    }

    public User getUser() {
        return user;
    }
}