/*
 * PhoneGap is available under *either* the terms of the modified BSD license *or* the
 * MIT License (2008). See http://opensource.org/licenses/alphabetical for full text.
 * 
 * Copyright (c) 2005-2010, Nitobi Software Inc.
 * Copyright (c) 2010, IBM Corporation
 */
package com.phonegap;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.phonegap.api.Plugin;
import com.phonegap.api.PluginResult;
import android.util.Log;

public class ContactManager extends Plugin {
	
    private ContactAccessor contactAccessor;
	private static final String LOG_TAG = "Contact Query";

	public static final int UNKNOWN_ERROR = 0;
	public static final int INVALID_ARGUMENT_ERROR = 1;
	public static final int TIMEOUT_ERROR = 2;
	public static final int PENDING_OPERATION_ERROR = 3;
	public static final int IO_ERROR = 4;
	public static final int NOT_SUPPORTED_ERROR = 5;
	public static final int PERMISSION_DENIED_ERROR = 20;

	
	/**
	 * Constructor.
	 */
	public ContactManager()	{
	}
	
	/**
	 * Executes the request and returns PluginResult.
	 * 
	 * @param action 		The action to execute.
	 * @param args 			JSONArry of arguments for the plugin.
	 * @param callbackId	The callback id used when calling back into JavaScript.
	 * @return 				A PluginResult object with a status and message.
	 */
	public PluginResult execute(String action, JSONArray args, String callbackId) {
        PluginResult.Status status = PluginResult.Status.OK;
        String result = "";     

        /**
         * Check to see if we are on an Android 1.X device.  If we are return an error as we 
         * do not support this as of PhoneGap 1.0.
         */
        if (android.os.Build.VERSION.RELEASE.startsWith("1.")) {
            JSONObject res = null;
            try {
                res = new JSONObject();
                res.put("code", NOT_SUPPORTED_ERROR);
                res.put("message", "Contacts are not supported in Android 1.X devices");
            } catch (JSONException e) {
                // This should never happen
                Log.e(LOG_TAG, e.getMessage(), e);
            }
            return new PluginResult(PluginResult.Status.ERROR, res);
        }

        /**
         * Only create the contactAccessor after we check the Android version or the program will crash
         * older phones.
         */
        if (this.contactAccessor == null) {
            this.contactAccessor = new ContactAccessorSdk5(this.webView, this.ctx);
        }
        
		try {
			if (action.equals("search")) {
				JSONArray res = contactAccessor.search(args.getJSONArray(0), args.optJSONObject(1));
				return new PluginResult(status, res, "navigator.contacts.cast");
			}
			else if (action.equals("save")) {
			    String id = contactAccessor.save(args.getJSONObject(0));
				if (id != null) {
	                JSONObject res = contactAccessor.getContactById(id);
	                if (res != null) {
	                    return new PluginResult(status, res);
	                }
				}
			}
			else if (action.equals("remove")) {
				if (contactAccessor.remove(args.getString(0))) {
					return new PluginResult(status, result);					
				}
			}
			// If we get to this point an error has occurred
            JSONObject r = new JSONObject();
            r.put("code", UNKNOWN_ERROR);
            return new PluginResult(PluginResult.Status.ERROR, r);
		} catch (JSONException e) {
			Log.e(LOG_TAG, e.getMessage(), e);
			return new PluginResult(PluginResult.Status.JSON_EXCEPTION);
		}
	}
}