//
//  SDLControlFrameStartService.m
//  SmartDeviceLink-iOS
//
//  Created by Joel Fischer on 7/18/17.
//  Copyright © 2017 smartdevicelink. All rights reserved.
//

#import "SDLControlFramePayloadRPCStartService.h"

#import "bson_object.h"
#import "SDLControlFramePayloadConstants.h"


NS_ASSUME_NONNULL_BEGIN

@interface SDLControlFramePayloadRPCStartService ()

@property (copy, nonatomic, readwrite, nullable) NSString *protocolVersion;

@end


@implementation SDLControlFramePayloadRPCStartService

- (instancetype)initWithVersion:(NSString *)stringVersion {
    self = [super init];
    if (!self) return nil;

    _protocolVersion = stringVersion;

    return self;
}

- (instancetype)initWithData:(nullable NSData *)data {
    self = [super init];
    if (!self) return nil;

    if (data != nil) {
        [self sdl_parse:data];
    }

    return self;
}

- (nullable NSData *)data {
    if (self.protocolVersion == nil) {
        return nil;
    }

    BsonObject payloadObject;
    bson_object_initialize_default(&payloadObject);

    if (self.protocolVersion != nil) {
        bson_object_put_string(&payloadObject, SDLControlFrameProtocolVersionKey, (char *)self.protocolVersion.UTF8String);
    }

    BytePtr bsonData = bson_object_to_bytes(&payloadObject);
    NSUInteger length = bson_object_size(&payloadObject);

    bson_object_deinitialize(&payloadObject);

    return [[NSData alloc] initWithBytes:bsonData length:length];
}

- (void)sdl_parse:(NSData *)data {
    BsonObject payloadObject = bson_object_from_bytes((BytePtr)data.bytes);

    char *utf8String = bson_object_get_string(&payloadObject, SDLControlFrameProtocolVersionKey);
    if (utf8String != NULL) {
        self.protocolVersion = [NSString stringWithUTF8String:utf8String];
    }

    bson_object_deinitialize(&payloadObject);
}

- (NSString *)description {
    return [NSString stringWithFormat:@"<%@>: Protocol Version: %@", NSStringFromClass(self.class), self.protocolVersion];
}

@end

NS_ASSUME_NONNULL_END