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#import "{{classPrefix}}Configuration.h"

@interface {{classPrefix}}Configuration ()

@property (nonatomic, strong) NSMutableDictionary *mutableDefaultHeaders;
@property (nonatomic, strong) NSMutableDictionary *mutableApiKey;
@property (nonatomic, strong) NSMutableDictionary *mutableApiKeyPrefix;

@end

@implementation {{classPrefix}}Configuration

#pragma mark - Singleton Methods

+ (instancetype) sharedConfig {
    static {{classPrefix}}Configuration *shardConfig = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        shardConfig = [[self alloc] init];
    });
    return shardConfig;
}

#pragma mark - Initialize Methods

- (instancetype) init {
    self = [super init];
    if (self) {
        self.apiClient = nil;
        self.host = @"{{basePath}}";
        self.username = @"";
        self.password = @"";
        self.accessToken= @"";
        self.verifySSL = YES;
        self.mutableApiKey = [NSMutableDictionary dictionary];
        self.mutableApiKeyPrefix = [NSMutableDictionary dictionary];
        self.mutableDefaultHeaders = [NSMutableDictionary dictionary];
        self.mutableDefaultHeaders[@"User-Agent"] = {{#httpUserAgent}}@"{{httpUserAgent}}"{{/httpUserAgent}}{{^httpUserAgent}}[NSString stringWithFormat:@"Swagger-Codegen/{{version}}/objc (%@; iOS %@; Scale/%0.2f)",[[UIDevice currentDevice] model], [[UIDevice currentDevice] systemVersion], [[UIScreen mainScreen] scale]]{{/httpUserAgent}};
        self.logger = [{{classPrefix}}Logger sharedLogger];
    }
    return self;
}

#pragma mark - Instance Methods

- (NSString *) getApiKeyWithPrefix:(NSString *)key {
    NSString *prefix = self.apiKeyPrefix[key];
    NSString *apiKey = self.apiKey[key];
    if (prefix && apiKey != (id)[NSNull null] && apiKey.length > 0) { // both api key prefix and api key are set
        return [NSString stringWithFormat:@"%@ %@", prefix, apiKey];
    }
    else if (apiKey != (id)[NSNull null] && apiKey.length > 0) { // only api key, no api key prefix
        return [NSString stringWithFormat:@"%@", self.apiKey[key]];
    }
    else { // return empty string if nothing is set
        return @"";
    }
}

- (NSString *) getBasicAuthToken {
    // return empty string if username and password are empty
    if (self.username.length == 0 && self.password.length == 0){
        return  @"";
    }

    NSString *basicAuthCredentials = [NSString stringWithFormat:@"%@:%@", self.username, self.password];
    NSData *data = [basicAuthCredentials dataUsingEncoding:NSUTF8StringEncoding];
    basicAuthCredentials = [NSString stringWithFormat:@"Basic %@", [data base64EncodedStringWithOptions:0]];

    return basicAuthCredentials;
}

- (NSString *) getAccessToken {
    if (self.accessToken.length == 0) { // token not set, return empty string
        return @"";
    } else {
        return [NSString stringWithFormat:@"Bearer %@", self.accessToken];
    }
}

#pragma mark - Setter Methods

- (void) setApiKey:(NSString *)apiKey forApiKeyIdentifier:(NSString *)identifier {
    [self.mutableApiKey setValue:apiKey forKey:identifier];
}

- (void) removeApiKey:(NSString *)identifier {
    [self.mutableApiKey removeObjectForKey:identifier];
}

- (void) setApiKeyPrefix:(NSString *)prefix forApiKeyPrefixIdentifier:(NSString *)identifier {
    [self.mutableApiKeyPrefix setValue:prefix forKey:identifier];
}

- (void) removeApiKeyPrefix:(NSString *)identifier {
    [self.mutableApiKeyPrefix removeObjectForKey:identifier];
}

#pragma mark - Getter Methods

- (NSDictionary *) apiKey {
    return [NSDictionary dictionaryWithDictionary:self.mutableApiKey];
}

- (NSDictionary *) apiKeyPrefix {
    return [NSDictionary dictionaryWithDictionary:self.mutableApiKeyPrefix];
}

#pragma mark -

- (NSDictionary *) authSettings {
    return @{
{{#authMethods}}
{{#isApiKey}}
               @"{{name}}":
                   @{
                       @"type": @"api_key",
                       @"in": {{#isKeyInHeader}}@"header"{{/isKeyInHeader}}{{#isKeyInQuery}}@"query"{{/isKeyInQuery}},
                       @"key": @"{{keyParamName}}",
                       @"value": [self getApiKeyWithPrefix:@"{{keyParamName}}"]
                   },
{{/isApiKey}}
{{#isBasic}}
               @"{{name}}":
                   @{
                       @"type": @"basic",
                       @"in": @"header",
                       @"key": @"Authorization",
                       @"value": [self getBasicAuthToken]
                   },
{{/isBasic}}
{{#isOAuth}}
               @"{{name}}":
                   @{
                       @"type": @"oauth",
                       @"in": @"header",
                       @"key": @"Authorization",
                       @"value": [self getAccessToken]
                   },
{{/isOAuth}}
{{/authMethods}}
               };
}

-(BOOL)debug {
    return self.logger.isEnabled;
}

-(void)setDebug:(BOOL)debug {
    self.logger.enabled = debug;
}



- (void)setDefaultHeaderValue:(NSString *)value forKey:(NSString *)key {
    if(!value) {
        [self.mutableDefaultHeaders removeObjectForKey:key];
        return;
    }
    self.mutableDefaultHeaders[key] = value;
}

-(void) removeDefaultHeaderForKey:(NSString*)key {
    [self.mutableDefaultHeaders removeObjectForKey:key];
}

- (NSString *)defaultHeaderForKey:(NSString *)key {
    return self.mutableDefaultHeaders[key];
}

- (NSDictionary *)defaultHeaders {
    return [self.mutableDefaultHeaders copy];
}

@end