/*
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you 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.
 */

#import "CDVKeychain.h"
#import "SFHFKeychainUtils.h"

@implementation CDVKeychain

- (CDVPlugin*) initWithWebView:(UIWebView*)theWebView
{
    self = (CDVKeychain*)[super initWithWebView:(UIWebView*)theWebView];
    if (self) {
		// initialization here
    }
    return self;
}


- (void) getForKey:(CDVInvokedUrlCommand*)command
{
    [self.commandDelegate runInBackground:^{
        NSArray* arguments = command.arguments;
        CDVPluginResult* pluginResult = nil;
        
        if ([arguments count] >= 2)
        {
            NSString* key = [arguments objectAtIndex:0];
            NSString* serviceName = [arguments objectAtIndex:1];
            NSError* error = nil;
            
            NSString* value = [SFHFKeychainUtils getPasswordForUsername:key andServiceName:serviceName error:&error];
            if (error == nil && value != nil) {
                pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:value];
            } else {
                pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR
                                                 messageAsString:[NSString stringWithFormat:@"error retrieving value for key '%@' : %@", key, [error localizedDescription]]];
            }
        }
        else
        {
            pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR
                                             messageAsString:@"incorrect number of arguments for getForkey"];
        }
        
        [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
    }];
}

- (void) setForKey:(CDVInvokedUrlCommand*)command
{
    [self.commandDelegate runInBackground:^{
        NSArray* arguments = command.arguments;
        CDVPluginResult* pluginResult = nil;
        
        if ([arguments count] >= 3)
        {
            NSString* key = [arguments objectAtIndex:0];
            NSString* serviceName = [arguments objectAtIndex:1];
            NSString* value = [arguments objectAtIndex:2];
            NSError* error = nil;
            
            BOOL stored = [SFHFKeychainUtils storeUsername:key andPassword:value forServiceName:serviceName updateExisting:YES error:&error];
            if (stored && error == nil) {
                pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
            } else {
                pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsString:[error localizedDescription]];
            }
        }
        else
        {
            pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR
                                             messageAsString:@"incorrect number of arguments for setForKey"];
        }

        
        [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
    }];
}

- (void) removeForKey:(CDVInvokedUrlCommand*)command
{
    [self.commandDelegate runInBackground:^{
        NSArray* arguments = command.arguments;
        CDVPluginResult* pluginResult = nil;
        
        if ([arguments count] >= 2)
        {
            NSString* key = [arguments objectAtIndex:0];
            NSString* serviceName = [arguments objectAtIndex:1];
            NSError* error = nil;
            
            BOOL deleted = [SFHFKeychainUtils deleteItemForUsername:key andServiceName:serviceName error:&error];
            if (deleted && error == nil) {
                pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
            } else {
                pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsString:[error localizedDescription]];
            }
        }
        else
        {
            pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR
                                             messageAsString:@"incorrect number of arguments for removeForKey"];
        }
        
        [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
    }];
}


@end