/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.motorola.studio.android.model.manifest.dom;

import java.util.LinkedList;
import java.util.List;

import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IStatus;

/**
 * Class that represents a <provider> node on AndroidManifest.xml file
 */
public class ProviderNode extends AbstractBuildingBlockNode
{
    static
    {
        defaultProperties.add(PROP_AUTHORITIES);
        defaultProperties.add(PROP_GRANTURIPERMISSIONS);
        defaultProperties.add(PROP_INITORDER);
        defaultProperties.add(PROP_MULTIPROCESS);
        defaultProperties.add(PROP_READPERMISSION);
        defaultProperties.add(PROP_SYNCABLE);
        defaultProperties.add(PROP_WRITEPERMISSION);
    }

    /**
     * The authorities property
     */
    private List<String> propAuthorities = null;

    /**
     * The grantUriPermissions property
     */
    private Boolean propGrantUriPermissions = null;

    /**
     * The initOrder property
     */
    private Integer propInitOrder = null;

    /**
     * The multiprocess property
     */
    private Boolean propMultiprocess = null;

    /**
     * The readPermission property
     */
    private String propReadPermission = null;

    /**
     * The syncable property
     */
    private Boolean propSyncable = null;

    /**
     * The writePermission property
     */
    private String propWritePermission = null;

    /**
     * Default constructor
     * 
     * @param name The name property. It must not be null.
     * @param initialAuthority The first authority to be added to the provider.
     *                         It must not be null.
     */
    public ProviderNode(String name, String initialAuthority)
    {
        super(name);

        Assert.isLegal(initialAuthority != null);
        propAuthorities = new LinkedList<String>();
        propAuthorities.add(initialAuthority);
    }

    /* (non-Javadoc)
     * @see com.motorola.studio.android.model.manifest.dom.AndroidManifestNode#canContains(com.motorola.studio.android.model.manifest.dom.AndroidManifestNode.NodeType)
     */
    @Override
    protected boolean canContains(NodeType nodeType)
    {
        return (nodeType == NodeType.GrantUriPermission) || (nodeType == NodeType.MetaData)
                || (nodeType == NodeType.Comment);
    }

    /* (non-Javadoc)
     * @see com.motorola.studio.android.model.manifest.dom.AbstractIconLabelNameNode#addAdditionalProperties()
     */
    @Override
    protected void addAdditionalProperties()
    {
        super.addAdditionalProperties();

        properties.put(PROP_AUTHORITIES, getAuthoritiesList());

        if (propGrantUriPermissions != null)
        {
            properties.put(PROP_GRANTURIPERMISSIONS, propGrantUriPermissions.toString());
        }

        if (propInitOrder != null)
        {
            properties.put(PROP_INITORDER, propInitOrder.toString());
        }

        if (propMultiprocess != null)
        {
            properties.put(PROP_MULTIPROCESS, propMultiprocess.toString());
        }

        if (propReadPermission != null)
        {
            properties.put(PROP_READPERMISSION, propReadPermission);
        }

        if (propSyncable != null)
        {
            properties.put(PROP_SYNCABLE, propSyncable.toString());
        }

        if (propWritePermission != null)
        {
            properties.put(PROP_WRITEPERMISSION, propWritePermission);
        }
    }

    /* (non-Javadoc)
     * @see com.motorola.studio.android.model.manifest.dom.AndroidManifestNode#getNodeType()
     */
    @Override
    public NodeType getNodeType()
    {
        return NodeType.Provider;
    }

    /* (non-Javadoc)
     * @see com.motorola.studio.android.model.manifest.dom.AndroidManifestNode#isNodeValid()
     */
    @Override
    protected boolean isNodeValid()
    {
        return super.isNodeValid() && (getAuthoritiesList().trim().length() > 0);
    }

    /**
     * Gets the Content Provider authorities as a list separated by semicolons, ready to be
     * used on manifest file
     * 
     * @return the Content Provider authorities as a list separated by semicolons
     */
    private String getAuthoritiesList()
    {
        String authorities = "";

        if ((propAuthorities != null) && !propAuthorities.isEmpty())
        {
            for (int i = 0; i < (propAuthorities.size() - 1); i++)
            {
                authorities += propAuthorities.get(i) + ";";
            }

            authorities += propAuthorities.get(propAuthorities.size() - 1);
        }

        return authorities;
    }

    /**
     * Adds an authority to the Content Provider
     * 
     * @param authority The authority name
     * 
     * @return true if the authority has been added (if it does not exist) or false otherwise
     */
    public boolean addAuthority(String authority)
    {
        Assert.isLegal(authority != null);

        boolean added = false;
        String auth = authority.trim();

        if (!propAuthorities.contains(auth))
        {
            propAuthorities.add(auth);
            added = true;
        }

        return added;
    }

    /**
     * Retrieves an array containing all authorities
     * 
     * @return an array containing all authorities
     */
    public String[] getAuthorities()
    {
        String[] authorities = new String[propAuthorities.size()];

        authorities = propAuthorities.toArray(authorities);

        return authorities;
    }

    /**
     * Removes an authority from the authority list. If the given authority is the last one,
     * it will not be removed.
     * 
     * @param authority The authority to be removed
     * 
     * @return true if the authority has been removed and false otherwise
     */
    public boolean removeAuthority(String authority)
    {
        Assert.isLegal(authority != null);

        boolean removed = false;
        String auth = authority.trim();

        if ((propAuthorities.size() > 1) && propAuthorities.contains(auth))
        {
            propAuthorities.remove(auth);
            removed = true;
        }

        return removed;
    }

    /**
     * Gets the grantUriPermissions property value
     * 
     * @return the grantUriPermissions property value
     */
    public Boolean getGrantUriPermissions()
    {
        return propGrantUriPermissions;
    }

    /**
     * Sets the grantUriPermissions property value. Set it to null to remove it.
     * 
     * @param grantUriPermissions the grantUriPermissions property value
     */
    public void setGrantUriPermissions(Boolean grantUriPermissions)
    {
        this.propGrantUriPermissions = grantUriPermissions;
    }

    /**
     * Gets the initOrder property value
     * 
     * @return the initOrder property value
     */
    public Integer getInitOrder()
    {
        return propInitOrder;
    }

    /**
     * Sets the initOrder property value. Set it to null to remove it.
     * 
     * @param initOrder the initOrder property value
     */
    public void setInitOrder(Integer initOrder)
    {
        this.propInitOrder = initOrder;
    }

    /**
     * Gets the multiprocess property value
     * 
     * @return the multiprocess property value
     */
    public Boolean getMultiprocess()
    {
        return propMultiprocess;
    }

    /**
     * Sets the multiprocess property value. Set it to null to remove it.
     * 
     * @param multiprocess the multiprocess property value
     */
    public void setMultiprocess(Boolean multiprocess)
    {
        this.propMultiprocess = multiprocess;
    }

    /**
     * Gets the readPermission property value
     * 
     * @return the readPermission property value
     */
    public String getReadPermission()
    {
        return propReadPermission;
    }

    /**
     * Sets the readPermission property value. Set it to null to remove it.
     * 
     * @param readPermission the readPermission property value
     */
    public void setReadPermission(String readPermission)
    {
        this.propReadPermission = readPermission;
    }

    /**
     * Gets the syncable property value
     * 
     * @return the syncable property value
     */
    public Boolean getSyncable()
    {
        return propSyncable;
    }

    /**
     * Sets the syncable property value. Set it to null to remove it.
     * 
     * @param syncable the syncable property value
     */
    public void setSyncable(Boolean syncable)
    {
        this.propSyncable = syncable;
    }

    /**
     * Gets the writePermission property value
     * 
     * @return the writePermission property value
     */
    public String getWritePermission()
    {
        return propWritePermission;
    }

    /**
     * Sets the writePermission property value. Set it to null to remove it.
     * 
     * @param writePermission the writePermission property value
     */
    public void setWritePermission(String writePermission)
    {
        this.propWritePermission = writePermission;
    }

    /**
     * Adds a Metadata Node to the Provider Node
     *  
     * @param metadata The Metadata Node
     */
    public void addMetadataNode(MetadataNode metadata)
    {
        if (metadata != null)
        {
            if (!children.contains(metadata))
            {
                children.add(metadata);
            }
        }
    }

    /**
     * Retrieves all Metadata Nodes from the Provider Node
     * 
     * @return all Metadata Nodes from the Provider Node
     */
    public List<MetadataNode> getMetadataNodes()
    {
        List<MetadataNode> metadatas = new LinkedList<MetadataNode>();

        for (AndroidManifestNode node : getAllChildrenFromType(NodeType.MetaData))
        {
            metadatas.add((MetadataNode) node);
        }

        return metadatas;
    }

    /**
     * Removes a Metadata Node from the Provider Node
     * 
     * @param metadata the Metadata Node to be removed
     */
    public void removeMetadataNode(MetadataNode metadata)
    {
        if (metadata != null)
        {
            children.remove(metadata);
        }
    }

    /**
     * Adds a Grant Uri Permission Node to the Provider Node
     *  
     * @param grantUriPermission The Grant Uri Permission Node
     */
    public void addGrantUriPermissionNode(GrantUriPermissionNode grantUriPermission)
    {
        if (grantUriPermission != null)
        {
            if (!children.contains(grantUriPermission))
            {
                children.add(grantUriPermission);
            }
        }
    }

    /**
     * Retrieves all Grant Uri Permission Nodes from the Provider Node
     * 
     * @return all Grant Uri Permission Nodes from the Provider Node
     */
    public List<GrantUriPermissionNode> getGrantUriPermissionsNodes()
    {
        List<GrantUriPermissionNode> grantUriPermissions = new LinkedList<GrantUriPermissionNode>();

        for (AndroidManifestNode node : getAllChildrenFromType(NodeType.GrantUriPermission))
        {
            grantUriPermissions.add((GrantUriPermissionNode) node);
        }

        return grantUriPermissions;
    }

    /**
     * Removes a Grant Uri Permission Node from the Provider Node
     * 
     * @param grantUriPermission the Grant Uri Permission Node to be removed
     */
    public void removeGrantUriPermissionNode(GrantUriPermissionNode grantUriPermission)
    {
        if (grantUriPermission != null)
        {
            children.remove(grantUriPermission);
        }
    }

    /* (non-Javadoc)
     * @see com.motorola.studio.android.model.manifest.dom.AndroidManifestNode#getSpecificNodeErrors()
     */
    @Override
    protected List<IStatus> getSpecificNodeProblems()
    {
        return null;
    }

    /**
     * Adds an Intent Filter Node to the Provider Node
     *  
     * @param intentFilter The Intent Filter Node
     */
    public void addIntentFilterNode(IntentFilterNode intentFilter)
    {
        if (intentFilter != null)
        {
            if (!children.contains(intentFilter))
            {
                children.add(intentFilter);
            }
        }
    }
}