package com.gooddata.project;

import com.gooddata.md.Meta;

import com.gooddata.util.BooleanStringDeserializer;

import com.gooddata.util.BooleanStringSerializer;

import org.codehaus.jackson.annotate.JsonCreator;

import org.codehaus.jackson.annotate.JsonIgnore;

import org.codehaus.jackson.annotate.JsonIgnoreProperties;

import org.codehaus.jackson.annotate.JsonProperty;

import org.codehaus.jackson.annotate.JsonTypeInfo;

import org.codehaus.jackson.annotate.JsonTypeName;

import org.codehaus.jackson.map.annotate.JsonDeserialize;

import org.codehaus.jackson.map.annotate.JsonSerialize;

import org.springframework.web.util.UriTemplate;

import java.util.Collections;

import java.util.HashMap;

import java.util.HashSet;

import java.util.Map;

import java.util.Map.Entry;

import java.util.Set;

/**

* Project Role

*/

@JsonTypeInfo(include = JsonTypeInfo.As.WRAPPER_OBJECT, use = JsonTypeInfo.Id.NAME)

@JsonTypeName("projectRole")

@JsonIgnoreProperties(ignoreUnknown = true)

@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)

public class Role {

public static final String URI = "/gdc/projects/{projectId}/roles/{roleId}";

public static final UriTemplate TEMPLATE = new UriTemplate(URI);

private static final String SELF_LINK = "self";

@JsonDeserialize(contentUsing = BooleanStringDeserializer.class)

@JsonSerialize(contentUsing = BooleanStringSerializer.class)

private final Map<String, Boolean> permissions;

private Meta meta;

private final Map<String, String> links;

@JsonCreator

Role(@JsonProperty("permissions") final Map<String, Boolean> permissions,

@JsonProperty("meta") final Meta meta,

@JsonProperty("links") final Map<String, String> links) {

this.permissions = permissions == null ? new HashMap<String, Boolean>() : permissions;

this.meta = meta == null ? new Meta(null) : meta;

this.links = links == null ? new HashMap<String, String>() : links;

}

/**

* Returns set of permission names this role can have granted.

*

* @return set of permission names

*/

public Set<String> getPermissions() {

return Collections.unmodifiableSet(permissions.keySet());

}

/**

* Returns names of granted permissions.

*

* @return set of granted permissions

*/

public Set<String> getGrantedPermissions() {

final Set<String> permissions = new HashSet<>();

for (Entry<String, Boolean> entry : this.permissions.entrySet()) {

if (entry.getValue()) {

permissions.add(entry.getKey());

}

}

return permissions;

}

/**

* Returns <code>true</code> if provided permission is granted.

*

* @param permission permission name to test

* @return whether the permission is granted

*/

public boolean hasPermissionGranted(final String permission) {

return permissions.get(permission);

}

public String getTitle() {

return meta.getTitle();

}

public String getIdentifier() {

return meta.getIdentifier();

}

/**

* Allows service to set self link as it is not provided by REST API.

* <p>

* NOTE: This is intentionally left package-private.

*/

void setUri(final String uri) {

links.put(SELF_LINK, uri);

}

@JsonIgnore

public String getUri() {

return links.get(SELF_LINK);

}

@Override

public boolean equals(final Object o) {

if (this == o) return true;

if (o == null || getClass() != o.getClass()) return false;

final Role role = (Role) o;

if (!permissions.equals(role.permissions)) return false;

return !(getIdentifier() != null ? !getIdentifier().equals(role.getIdentifier()) : role.getIdentifier() != null);

}

@Override

public int hashCode() {

int result = permissions.hashCode();

result = 31 * result + (getIdentifier() != null ? getIdentifier().hashCode() : 0);

return result;

}

}