/******************************************************************************
 * Copyright (c) 2008-2012 Transmission authors and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *****************************************************************************/

#import "BonjourController.h"

#define BONJOUR_SERVICE_NAME_MAX_LENGTH 63

@implementation BonjourController

BonjourController* fDefaultController = nil;

+ (BonjourController*)defaultController
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        fDefaultController = [[BonjourController alloc] init];
    });

    return fDefaultController;
}

+ (BOOL)defaultControllerExists
{
    return fDefaultController != nil;
}

- (void)startWithPort:(int)port
{
    [self stop];

    NSMutableString* serviceName = [NSMutableString
        stringWithFormat:@"Transmission (%@ - %@)", NSUserName(), [NSHost currentHost].localizedName];
    if (serviceName.length > BONJOUR_SERVICE_NAME_MAX_LENGTH)
    {
        [serviceName deleteCharactersInRange:NSMakeRange(BONJOUR_SERVICE_NAME_MAX_LENGTH, serviceName.length - BONJOUR_SERVICE_NAME_MAX_LENGTH)];
    }

    fService = [[NSNetService alloc] initWithDomain:@"" type:@"_http._tcp." name:serviceName port:port];
    fService.delegate = self;

    [fService publish];
}

- (void)stop
{
    [fService stop];
    fService = nil;
}

- (void)netService:(NSNetService*)sender didNotPublish:(NSDictionary*)errorDict
{
    NSLog(@"Failed to publish the web interface service on port %ld, with error: %@", sender.port, errorDict);
}

- (void)netService:(NSNetService*)sender didNotResolve:(NSDictionary*)errorDict
{
    NSLog(@"Failed to resolve the web interface service on port %ld, with error: %@", sender.port, errorDict);
}

@end