#import "CodePush.h"
#import <UIKit/UIKit.h>

@implementation CodePushConfig {
 NSMutableDictionary *_configDictionary;
}

static CodePushConfig *_currentConfig;

static NSString * const AppVersionConfigKey = @"appVersion";
static NSString * const BuildVersionConfigKey = @"buildVersion";
static NSString * const ClientUniqueIDConfigKey = @"clientUniqueId";
static NSString * const DeploymentKeyConfigKey = @"deploymentKey";
static NSString * const ServerURLConfigKey = @"serverUrl";
static NSString * const PublicKeyKey = @"publicKey";

+ (instancetype)current
{
 return _currentConfig;
}

+ (void)initialize
{
 if (self == [CodePushConfig class]) {
 _currentConfig = [[CodePushConfig alloc] init];
 }
}

- (instancetype)init
{
 self = [super init];
 NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];

 NSString *appVersion = [infoDictionary objectForKey:@"CFBundleShortVersionString"];
 NSString *buildVersion = [infoDictionary objectForKey:(NSString *)kCFBundleVersionKey];
 NSString *deploymentKey = [infoDictionary objectForKey:@"CodePushDeploymentKey"];
 NSString *serverURL = [infoDictionary objectForKey:@"CodePushServerURL"];
 NSString *publicKey = [infoDictionary objectForKey:@"CodePushPublicKey"];
 
 NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
 NSString *clientUniqueId = [userDefaults stringForKey:ClientUniqueIDConfigKey];
 if (clientUniqueId == nil) {
 clientUniqueId = [[[UIDevice currentDevice] identifierForVendor] UUIDString];
 [userDefaults setObject:clientUniqueId forKey:ClientUniqueIDConfigKey];
 [userDefaults synchronize];
 }

 if (!serverURL) {
 serverURL = @"https://codepush.azurewebsites.net/";
 }

 _configDictionary = [[NSMutableDictionary alloc] initWithObjectsAndKeys:
 appVersion,AppVersionConfigKey,
 buildVersion,BuildVersionConfigKey,
 serverURL,ServerURLConfigKey,
 clientUniqueId,ClientUniqueIDConfigKey,
 deploymentKey,DeploymentKeyConfigKey,
 publicKey,PublicKeyKey,
 nil];

 return self;
}

- (NSString *)appVersion
{
 return [_configDictionary objectForKey:AppVersionConfigKey];
}

- (NSString *)buildVersion
{
 return [_configDictionary objectForKey:BuildVersionConfigKey];
}

- (NSDictionary *)configuration
{
 return _configDictionary;
}

- (NSString *)deploymentKey
{
 return [_configDictionary objectForKey:DeploymentKeyConfigKey];
}

- (NSString *)serverURL
{
 return [_configDictionary objectForKey:ServerURLConfigKey];
}

- (NSString *)clientUniqueId
{
 return [_configDictionary objectForKey:ClientUniqueIDConfigKey];
}

- (NSString *)publicKey
{
 return [_configDictionary objectForKey:PublicKeyKey];
}

- (void)setAppVersion:(NSString *)appVersion
{
 [_configDictionary setValue:appVersion forKey:AppVersionConfigKey];
}

- (void)setDeploymentKey:(NSString *)deploymentKey
{
 [_configDictionary setValue:deploymentKey forKey:DeploymentKeyConfigKey];
}

- (void)setServerURL:(NSString *)serverURL
{
 [_configDictionary setValue:serverURL forKey:ServerURLConfigKey];
}

//no setter for PublicKey, because it's need to be hard coded within Info.plist for safety

@end