/*
* Copyright (C) 2015 Samsung System LSI
* 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.android.bluetooth.map;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;

import android.util.Log;

import com.android.bluetooth.SignedLongLong;

public class BluetoothMapConvoContactElement
    implements Comparable<BluetoothMapConvoContactElement> {

    public static final long CONTACT_ID_TYPE_SMS_MMS = 1;
    public static final long CONTACT_ID_TYPE_EMAIL   = 2;
    public static final long CONTACT_ID_TYPE_IM      = 3;

    private static final String XML_ATT_PRIORITY = "priority";
    private static final String XML_ATT_PRESENCE_STATUS = "presence_status";
    private static final String XML_ATT_PRESENCE_AVAILABILITY = "presence_availability";
    private static final String XML_ATT_X_BT_UID = "x_bt_uid";
    private static final String XML_ATT_LAST_ACTIVITY = "last_activity";
    private static final String XML_ATT_CHAT_STATE = "chat_state";
    private static final String XML_ATT_NAME = "name";
    private static final String XML_ATT_DISPLAY_NAME = "display_name";
    private static final String XML_ATT_UCI = "x_bt_uci";
    protected static final String XML_TAG_CONVOCONTACT = "convocontact";
    private static final String TAG = "BluetoothMapConvoContactElement";
    private static final boolean D = false;
    private static final boolean V = false;

    private String mUci = null;
    private String mName = null;
    private String mDisplayName = null;
    private String mPresenceStatus = null;
    private int mPresenceAvailability = -1;
    private int mPriority = -1;
    private long mLastActivity = -1;
    private SignedLongLong mBtUid = null;
    private int mChatState = -1;

    public static BluetoothMapConvoContactElement createFromMapContact(MapContact contact,
            String address) {
        BluetoothMapConvoContactElement newElement = new BluetoothMapConvoContactElement();
        newElement.mUci = address;
        // TODO: For now we use the ID as BT-UID
        newElement.mBtUid = new SignedLongLong(contact.getId(),0);
        newElement.mDisplayName = contact.getName();
        return newElement;
    }

    public BluetoothMapConvoContactElement(String uci, String name, String displayName,
            String presenceStatus, int presenceAvailability, long lastActivity, int chatState,
            int priority, String btUid) {
        this.mUci = uci;
        this.mName = name;
        this.mDisplayName = displayName;
        this.mPresenceStatus = presenceStatus;
        this.mPresenceAvailability = presenceAvailability;
        this.mLastActivity = lastActivity;
        this.mChatState = chatState;
        this.mPresenceStatus = presenceStatus;
        this.mPriority = priority;
        if(btUid != null) {
            try {
                this.mBtUid = SignedLongLong.fromString(btUid);
            } catch (UnsupportedEncodingException e) {
                Log.w(TAG,e);
            }
        }
    }

    public BluetoothMapConvoContactElement() {
        // TODO Auto-generated constructor stub
    }

    public String getPresenceStatus() {
        return mPresenceStatus;
    }

    public String getDisplayName() {
        return mDisplayName;
    }

    public void setDisplayName(String displayName) {
        this.mDisplayName = displayName;
    }

    public void setPresenceStatus(String presenceStatus) {
        this.mPresenceStatus = presenceStatus;
    }

    public int getPresenceAvailability() {
        return mPresenceAvailability;
    }

    public void setPresenceAvailability(int presenceAvailability) {
        this.mPresenceAvailability = presenceAvailability;
    }

    public int getPriority() {
        return mPriority;
    }

    public void setPriority(int priority) {
        this.mPriority = priority;
    }

    public String getName() {
        return mName;
    }

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

    public String getBtUid() {
        return mBtUid.toHexString();
    }

    public void setBtUid(SignedLongLong btUid) {
        this.mBtUid = btUid;
    }

    public int getChatState() {
        return mChatState;
    }

    public void setChatState(int chatState) {
        this.mChatState = chatState;
    }

    public void setChatState(String chatState) {
        this.mChatState = Integer.valueOf(chatState);
    }


    public String getLastActivityString() {
        SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
        Date date = new Date(mLastActivity);
        return format.format(date); // Format to YYYYMMDDTHHMMSS local time
    }

    public void setLastActivity(long dateTime) {
        this.mLastActivity = dateTime;
    }

    public void setLastActivity(String lastActivity) throws ParseException {
        SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
        Date date = format.parse(lastActivity);
        this.mLastActivity = date.getTime();
    }

    public void setContactId(String uci) {
        this.mUci = uci;
    }

    public String getContactId(){
        return mUci;
    }

    public int compareTo(BluetoothMapConvoContactElement e) {
        if (this.mLastActivity < e.mLastActivity) {
            return 1;
        } else if (this.mLastActivity > e.mLastActivity) {
            return -1;
        } else {
            return 0;
        }
    }

    /* Encode the MapConvoContactElement into the StringBuilder reference.
     * Here we have taken the choice not to report empty attributes, to reduce the
     * amount of data to be transfered over BT. */
    public void encode(XmlSerializer xmlConvoElement)
            throws IllegalArgumentException, IllegalStateException, IOException
    {
            // construct the XML tag for a single contact in the convolisting element.
            xmlConvoElement.startTag(null, XML_TAG_CONVOCONTACT);
            if(mUci != null) {
                xmlConvoElement.attribute(null, XML_ATT_UCI, mUci);
            }
            if(mDisplayName != null) {
                xmlConvoElement.attribute(null, XML_ATT_DISPLAY_NAME,
                            BluetoothMapUtils.stripInvalidChars(mDisplayName));
            }
            if(mName != null) {
                xmlConvoElement.attribute(null, XML_ATT_NAME,
                        BluetoothMapUtils.stripInvalidChars(mName));
            }
            if(mChatState != -1) {
                xmlConvoElement.attribute(null, XML_ATT_CHAT_STATE, String.valueOf(mChatState));
            }
            if(mLastActivity != -1) {
                xmlConvoElement.attribute(null, XML_ATT_LAST_ACTIVITY,
                        this.getLastActivityString());
            }
            if(mBtUid != null) {
                xmlConvoElement.attribute(null, XML_ATT_X_BT_UID, mBtUid.toHexString());
            }
            if(mPresenceAvailability != -1) {
                xmlConvoElement.attribute(null,  XML_ATT_PRESENCE_AVAILABILITY,
                        String.valueOf(mPresenceAvailability));
            }
            if(mPresenceStatus != null) {
                xmlConvoElement.attribute(null,  XML_ATT_PRESENCE_STATUS, mPresenceStatus);
            }
            if(mPriority != -1) {
                xmlConvoElement.attribute(null, XML_ATT_PRIORITY, String.valueOf(mPriority));
            }

            xmlConvoElement.endTag(null, XML_TAG_CONVOCONTACT);
    }


    /**
     * Call this function to create a BluetoothMapConvoContactElement. Will consume the end-tag.
     * @param parser must point into XML_TAG_CONVERSATION tag, hence attributes can be read.
     * @return
     * @throws IOException
     * @throws XmlPullParserException
     */
    public static BluetoothMapConvoContactElement createFromXml(XmlPullParser parser)
            throws ParseException, XmlPullParserException, IOException {
        int count = parser.getAttributeCount();
        BluetoothMapConvoContactElement newElement;
        if(count<1) {
            throw new IllegalArgumentException(XML_TAG_CONVOCONTACT +
                    " is not decorated with attributes");
        }
        newElement = new BluetoothMapConvoContactElement();
        for (int i = 0; i<count; i++) {
            String attributeName = parser.getAttributeName(i).trim();
            String attributeValue = parser.getAttributeValue(i);
            if(attributeName.equalsIgnoreCase(XML_ATT_UCI)) {
                newElement.mUci = attributeValue;
            } else if(attributeName.equalsIgnoreCase(XML_ATT_NAME)) {
                newElement.mName = attributeValue;
            } else if(attributeName.equalsIgnoreCase(XML_ATT_DISPLAY_NAME)) {
                newElement.mDisplayName = attributeValue;
            } else if(attributeName.equalsIgnoreCase(XML_ATT_CHAT_STATE)) {
                newElement.setChatState(attributeValue);
            } else if(attributeName.equalsIgnoreCase(XML_ATT_LAST_ACTIVITY)) {
                newElement.setLastActivity(attributeValue);
            } else if(attributeName.equalsIgnoreCase(XML_ATT_X_BT_UID)) {
                newElement.setBtUid(SignedLongLong.fromString(attributeValue));
            } else if(attributeName.equalsIgnoreCase(XML_ATT_PRESENCE_AVAILABILITY)) {
                newElement.mPresenceAvailability = Integer.parseInt(attributeValue);
            } else if(attributeName.equalsIgnoreCase(XML_ATT_PRESENCE_STATUS)) {
                newElement.setPresenceStatus(attributeValue);
            } else if(attributeName.equalsIgnoreCase(XML_ATT_PRIORITY)) {
                newElement.setPriority(Integer.parseInt(attributeValue));
            } else {
                if(D) Log.i(TAG,"Unknown XML attribute: " + parser.getAttributeName(i));
            }
        }
        parser.nextTag(); // Consume the end-tag
        return newElement;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        BluetoothMapConvoContactElement other = (BluetoothMapConvoContactElement) obj;
/*      As we use equals only for test, we don't compare auto assigned values
 *      if (mBtUid == null) {
            if (other.mBtUid != null) {
                return false;
            }
        } else if (!mBtUid.equals(other.mBtUid)) {
            return false;
        }*/
        if (mChatState != other.mChatState) {
            return false;
        }
        if (mDisplayName == null) {
            if (other.mDisplayName != null) {
                return false;
            }
        } else if (!mDisplayName.equals(other.mDisplayName)) {
            return false;
        }
/*      As we use equals only for test, we don't compare auto assigned values
 *      if (mId == null) {
            if (other.mId != null) {
                return false;
            }
        } else if (!mId.equals(other.mId)) {
            return false;
        }*/
        if (mLastActivity != other.mLastActivity) {
            return false;
        }
        if (mName == null) {
            if (other.mName != null) {
                return false;
            }
        } else if (!mName.equals(other.mName)) {
            return false;
        }
        if (mPresenceAvailability != other.mPresenceAvailability) {
            return false;
        }
        if (mPresenceStatus == null) {
            if (other.mPresenceStatus != null) {
                return false;
            }
        } else if (!mPresenceStatus.equals(other.mPresenceStatus)) {
            return false;
        }
        if (mPriority != other.mPriority) {
            return false;
        }
        return true;
    }

}