API_Request.m

#import "API_Request.h"
#import "SessionDelegate.h"

NSMutableURLRequest * generateRequest(NSURL *URL, NSString *postString) {
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];
    [request setHTTPMethod:@"POST"];
    NSData *postData = [postString dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setHTTPBody:postData];
    return request;
}

void _invokeWithRequest(NSURL *url, NSString *postString, NSString *pathToStore,completionHandler completionHandler) {
    NSMutableURLRequest* request = generateRequest(url, postString);
    if([Utility isReachableToLocalNetwork]){
        [SessionDelegate invokeAPIRequest:request completionHandler:^(NSData *data, NSError *error) {
            if(!error) {
//                NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
//                NSLog(@"Response is %@",str);
                NSError *error2 = nil;
                NSDictionary *jsonData = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error2];
                if(!error2 && jsonData) {
                    completionHandler(jsonData,nil);
                    if([jsonData valueForKey:kAPI_Response_error_code] && [[jsonData valueForKey:kAPI_Response_error_code] integerValue]==0) {
                        [jsonData writeToFile:pathToStore atomically:YES];
                    }
                } else {
                    completionHandler(nil,[error2 description]);
                }
            } else {
                completionHandler(nil,[error description]);
            }
        }];
    } else {
        if(pathToStore && pathToStore.length && [[NSFileManager defaultManager] fileExistsAtPath:pathToStore]) {
            NSDictionary *dFromFile = [NSDictionary dictionaryWithContentsOfFile:pathToStore];
            completionHandler(dFromFile,@"Error");
        } else {
            completionHandler(nil, @"Error");
        }
    }
}

void addKeyValuePair(NSString *strKey, NSString *strValue, NSMutableDictionary *dOfData) {
    if(strValue && strValue.length) [dOfData setObject:strValue forKey:strKey];
}

NSString *stringForRequest(NSDictionary *dForRequest) {
    NSMutableString *string = [NSMutableString string];
    for (NSString *key in dForRequest) {
        [string appendFormat:@"&%@=%@",key,[dForRequest valueForKey:key]];
    }
    return [string stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"&"]];
}

#define vAPI_Request_Device_Type            @"1"//For iPhone
#define vAPI_Request_Device_Width           [NSString stringWithFormat:@"%.0f",[[UIScreen mainScreen] bounds].size.width]
#define vAPI_Request_Device_Height          [NSString stringWithFormat:@"%.0f",[[UIScreen mainScreen] bounds].size.height]





// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

// 00 Cache & get image
void _00_Image_Request(NSString *strImageURL, imageCompletionHandler imageCompletionHandler) {
    NSURL *imageURL = [NSURL URLWithString:strImageURL];
    strImageURL = [strImageURL stringByReplacingOccurrencesOfString:@"/" withString:@"_"];
    strImageURL = [strImageURL stringByReplacingOccurrencesOfString:@":" withString:@"_"];
    strImageURL = [strImageURL stringByReplacingOccurrencesOfString:@"." withString:@"_"];
    NSString *uniquePath = [NSTemporaryDirectory() stringByAppendingPathComponent: strImageURL];
    uniquePath = [uniquePath stringByAppendingPathExtension:@"png"];
    
    if(![[NSFileManager defaultManager] fileExistsAtPath: uniquePath]) {
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:imageURL cachePolicy:NSURLRequestReturnCacheDataElseLoad timeoutInterval:API_RQST_TIME_OUT];
        [SessionDelegate invokeAPIRequest:request completionHandler:^(NSData *data, NSError *error) {
            if(!error) {
                UIImage *image = [UIImage imageWithData:data];
                [data writeToFile:uniquePath atomically:YES];
                imageCompletionHandler(image,nil);
            } else {
                imageCompletionHandler(nil,error);
            }
        }];
    } else {
        UIImage *image = [UIImage imageWithContentsOfFile:uniquePath];
        imageCompletionHandler(image,(image)?nil:[NSError errorWithDomain:@"Image not found" code:101 userInfo:nil]);
    }
}

// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
//device_token,device_type,device_display_width,device_display_height
#pragma mark - 01 API Authenticate

NSString *_01_API_Request_Authenticate_POST(NSString *strEmail, NSString *strMobile, NSString *strPassword, NSString *lat, NSString *lng, NSString *langId) {
    
    NSMutableDictionary *dOfPost = [NSMutableDictionary dictionary];
    addKeyValuePair(kAPI_Request_email, strEmail, dOfPost);
    addKeyValuePair(kAPI_Request_mobile, strMobile, dOfPost);
    addKeyValuePair(kAPI_Request_password, strPassword, dOfPost);
    addKeyValuePair(kAPI_Request_lat, lat, dOfPost);
    addKeyValuePair(kAPI_Request_lng, lng, dOfPost);
    addKeyValuePair(kAPI_Request_language_id, langId, dOfPost);
    
    addKeyValuePair(kAPI_Request_device_token, ([Utility getUserPref:USER_DEVICE_TOKEN])?[Utility getUserPref:USER_DEVICE_TOKEN]:@"NO TOKEN", dOfPost);
    addKeyValuePair(kAPI_Request_device_device_type, vAPI_Request_Device_Type, dOfPost);
    addKeyValuePair(kAPI_Request_device_display_width, vAPI_Request_Device_Width, dOfPost);
    addKeyValuePair(kAPI_Request_device_display_height, vAPI_Request_Device_Height, dOfPost);
//    addKeyValuePair(kAPI_Request_session_id, [Utility getUserPref:kAPI_Request_session_id], dOfPost);
    return stringForRequest(dOfPost);
}

void _01_API_Request_Authenticate(NSString *strEmail, NSString *strMobile, NSString *strPassword, NSString *lat, NSString *lng, NSString *languageid, completionHandler completionHandler) {
    
    _invokeWithRequest(k_01_API_Authenticate_URL, _01_API_Request_Authenticate_POST(strEmail, strMobile, strPassword, lat, lng, languageid), k_LOCAL_UserProfile_Path, completionHandler);
}

// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

#pragma mark - 02 API Register

NSString *_02_API_Request_Register_POST(NSString *strName, NSString *strEmail, NSString *strMobile, NSString *strPassword, NSString *lat, NSString *lng, NSString *langId) {
    NSMutableDictionary *dOfPost = [NSMutableDictionary dictionary];
    addKeyValuePair(k_02_API_Register_name, strName, dOfPost);
    addKeyValuePair(kAPI_Request_email, strEmail, dOfPost);
    addKeyValuePair(kAPI_Request_mobile, strMobile, dOfPost);
    addKeyValuePair(kAPI_Request_password, strPassword, dOfPost);
    addKeyValuePair(kAPI_Request_lat, lat, dOfPost);
    addKeyValuePair(kAPI_Request_lng, lng, dOfPost);
    addKeyValuePair(kAPI_Request_language_id, langId, dOfPost);
    
    addKeyValuePair(kAPI_Request_device_token, ([Utility getUserPref:USER_DEVICE_TOKEN])?[Utility getUserPref:USER_DEVICE_TOKEN]:@"NO TOKEN", dOfPost);
    addKeyValuePair(kAPI_Request_device_device_type, vAPI_Request_Device_Type, dOfPost);
    addKeyValuePair(kAPI_Request_device_display_width, vAPI_Request_Device_Width, dOfPost);
    addKeyValuePair(kAPI_Request_device_display_height, vAPI_Request_Device_Height, dOfPost);
    addKeyValuePair(kAPI_Request_session_id, [Utility getUserPref:kAPI_Request_session_id], dOfPost);
    return stringForRequest(dOfPost);
}

void _02_API_Request_Register(NSString *strName, NSString *strEmail, NSString *strMobile, NSString *strPassword, NSString *lat, NSString *lng, NSString *langId, completionHandler completionHandler) {
    _invokeWithRequest(k_02_API_Register_URL, _02_API_Request_Register_POST(strName, strEmail, strMobile, strPassword, lat, lng, langId), k_LOCAL_UserProfile_Path, completionHandler);
}

// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

#pragma mark - 03 API Register via social

NSString *_03_API_Request_RegisterSocial_POST(NSString* socialID, NSString *socialType, NSString *strName, NSString *strEmail, NSString *strMobile, NSString *lat, NSString *lng, NSString *langId) {
    NSMutableDictionary *dOfPost = [NSMutableDictionary dictionary];
    
    addKeyValuePair(k_03_API_RegisterSocial_social_id, socialID, dOfPost);
    addKeyValuePair(k_03_API_RegisterSocial_social_type, socialType, dOfPost);
    
    addKeyValuePair(k_02_API_Register_name, strName, dOfPost);
    addKeyValuePair(kAPI_Request_email, strEmail, dOfPost);
    addKeyValuePair(kAPI_Request_mobile, strMobile, dOfPost);
    addKeyValuePair(kAPI_Request_lat, lat, dOfPost);
    addKeyValuePair(kAPI_Request_lng, lng, dOfPost);
    addKeyValuePair(kAPI_Request_language_id, langId, dOfPost);
    
    addKeyValuePair(kAPI_Request_device_token, ([Utility getUserPref:USER_DEVICE_TOKEN])?[Utility getUserPref:USER_DEVICE_TOKEN]:@"NO TOKEN", dOfPost);
    addKeyValuePair(kAPI_Request_device_device_type, vAPI_Request_Device_Type, dOfPost);
    addKeyValuePair(kAPI_Request_device_display_width, vAPI_Request_Device_Width, dOfPost);
    addKeyValuePair(kAPI_Request_device_display_height, vAPI_Request_Device_Height, dOfPost);
    addKeyValuePair(kAPI_Request_session_id, [Utility getUserPref:kAPI_Request_session_id], dOfPost);
    return stringForRequest(dOfPost);
}

void _03_API_Request_RegisterSocial(NSString* socialID, NSString *socialType, NSString *strName, NSString *strEmail, NSString *strMobile, NSString *lat, NSString *lng, NSString *langId, completionHandler completionHandler) {
    _invokeWithRequest(k_03_API_RegisterSocial_URL, _03_API_Request_RegisterSocial_POST(socialID, socialType, strName, strEmail, strMobile, lat, lng, langId), k_LOCAL_UserProfile_Path, completionHandler);
}

// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

#pragma mark - 04 API Forgot Password

NSString *_04_API_Request_ForgotPassword_POST(NSString *strEmail) {
    NSMutableDictionary *dOfPost = [NSMutableDictionary dictionary];
    addKeyValuePair(kAPI_Request_email, strEmail, dOfPost);
    return stringForRequest(dOfPost);
}

void _04_API_Request_ForgotPassword(NSString *strEmail, completionHandler completionHandler) {
    _invokeWithRequest(k_04_API_ForgotPassword_URL, _04_API_Request_ForgotPassword_POST(strEmail), nil, completionHandler);
}

// ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------