/*
 *	$Id:$
 *	MacPorts.Framework
 *
 *	Authors:
 * 	Randall H. Wood <rhwood@macports.org>
 *
 *	Copyright (c) 2007 Randall H. Wood <rhwood@macports.org>
 *	All rights reserved.
 *
 *	Redistribution and use in source and binary forms, with or without
 *	modification, are permitted provided that the following conditions
 *	are met:
 *	1.	Redistributions of source code must retain the above copyright
 *		notice, this list of conditions and the following disclaimer.
 *	2.	Redistributions in binary form must reproduce the above copyright
 *		notice, this list of conditions and the following disclaimer in the
 *		documentation and/or other materials provided with the distribution.
 *	3.	Neither the name of the copyright owner nor the names of contributors
 *		may be used to endorse or promote products derived from this software
 *		without specific prior written permission.
 * 
 *	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *	AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *	ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 *	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
						   *	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
						   *	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *	POSSIBILITY OF SUCH DAMAGE.
 */

#import "MPMacPorts.h"


@implementation MPMacPorts

- (id) init {
	if (self = [super init]) {
		interpreter = [MPInterpreter sharedInterpreter];
	}
	return self;
}

+ (MPMacPorts *)sharedInstance {
	@synchronized(self) {
		if ([[[NSThread currentThread] threadDictionary] objectForKey:@"sharedMPMacPorts"] == nil) {
			[[self alloc] init]; // assignment not done here
		}
	}
	return [[[NSThread currentThread] threadDictionary] objectForKey:@"sharedMPMacPorts"];
}

+ (id)allocWithZone:(NSZone*)zone {
	@synchronized(self) {
		if ([[[NSThread currentThread] threadDictionary] objectForKey:@"sharedMPMacPorts"] == nil) {
			[[[NSThread currentThread] threadDictionary] setObject:[super allocWithZone:zone] forKey:@"sharedMPMacPorts"];
			return [[[NSThread currentThread] threadDictionary] objectForKey:@"sharedMPMacPorts"];	// assignment and return on first allocation
		}
	}
	return nil;	// subsequent allocation attempts return nil
}

- (id)copyWithZone:(NSZone*)zone {
    return self;
}

- (id)retain {
    return self;
}

- (unsigned)retainCount {
    return UINT_MAX;  //denotes an object that cannot be released
}

- (void)release {
    //do nothing
}

- (id)autorelease {
    return self;
}

#pragma MacPorts API

- (void)sync {
	// This needs to throw an exception if things don't go well
	[[NSDistributedNotificationCenter defaultCenter] postNotificationName:@"MacPortsSyncStarted" object:nil];
	[interpreter evaluateStringAsString:@"mportsync"];
	[[NSDistributedNotificationCenter defaultCenter] postNotificationName:@"MacPortsSyncFinished" object:nil];
}

- (NSDictionary *)search:(NSString *)query {
	return [self search:query caseSensitive:YES];
}

- (NSDictionary *)search:(NSString *)query caseSensitive:(BOOL)sensitivity {
	return [self search:query caseSensitive:sensitivity matchStyle:@"regex"];
}

- (NSDictionary *)search:(NSString *)query caseSensitive:(BOOL)sensitivity matchStyle:(NSString *)style {
	return [self search:query caseSensitive:sensitivity matchStyle:style field:@"name"];
}

- (NSDictionary *)search:(NSString *)query caseSensitive:(BOOL)sensitivity matchStyle:(NSString *)style field:(NSString *)fieldName {
	NSMutableDictionary *result;
	NSEnumerator *enumerator;
	id key;
	NSString *caseSensitivity;
	if (sensitivity) {
		caseSensitivity = @"yes";
	} else {
		caseSensitivity = @"no";
	}
	result = [NSMutableDictionary dictionaryWithDictionary:[interpreter dictionaryFromTclListAsString:[interpreter evaluateArrayAsString:[NSArray arrayWithObjects:
		@"return [mportsearch",
		query,
		caseSensitivity,
		style,
		fieldName,
		@"]",
		nil]]]];
	enumerator = [result keyEnumerator];
	while (key = [enumerator nextObject]) {
		[result setObject:[[MPPort alloc] initWithTclListAsString:[result objectForKey:key]] forKey:key];
	}
	return [NSDictionary dictionaryWithDictionary:result];
}

- (NSArray *)depends:(MPPort *)port {
	return [port depends];
}

- (void)exec:(MPPort *)port withTarget:(NSString *)target {
	return [port exec:target];
}

#pragma settings

- (NSString *)prefix {
	if (prefix == Nil) {
		prefix = [interpreter getVariableAsString:@"macports::prefix_frozen"];
	}
	return prefix;
}

- (NSArray *)sources:(BOOL)refresh {
	if (refresh) {
		[sources release];
	}
	return [self sources];
}

- (NSArray *)sources {
	if (sources == Nil) {
		sources = [interpreter getVariableAsArray:@"macports::sources"];
	}
	return sources;
}

- (NSURL *)pathToPortIndex:(NSString *)source {
	return [NSURL fileURLWithPath:[interpreter evaluateArrayAsString:[NSArray arrayWithObjects:
		@"return [macports::getindex",
		source,
		@"]",
		nil]]];
}

- (NSString *)version {
	if (version == Nil) {
		version = [interpreter evaluateStringAsString:@"return [macports::version]"];
	}
	return version;
}

@end