//
//  PithosNode.m
//  pithos-macos
//
// Copyright 2011 GRNET S.A. 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.
// 
// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``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 GRNET S.A 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.
// 
// The views and conclusions contained in the software and
// documentation are those of the authors and should not be
// interpreted as representing official policies, either expressed
// or implied, of GRNET S.A.

#import "PithosObjectNode.h"
#import "ASIPithosRequest.h"
#import "ASIPithosObjectRequest.h"
#import "ASIPithosContainer.h"
#import "ASIPithosObject.h"
#import "ASIDownloadCache.h"
#import "PithosNodeInfoController.h"

@implementation PithosObjectNode
@synthesize pithosContainer, pithosObject;
@synthesize isPublic;

#pragma mark -
#pragma mark Object Lifecycle

- (id)initWithPithosContainer:(ASIPithosContainer *)aPithosContainer pithosObject:(ASIPithosObject *)aPithosObject {
    if ((self = [super init])) {
        self.pithosContainer = aPithosContainer;
        self.pithosObject = aPithosObject;
        isLeafItem = YES;
    }
    return self;
}

- (void)dealloc {
    [refreshMetadataObjectRequest clearDelegatesAndCancel];
    [refreshMetadataObjectRequest release];
    [applyMetadataObjectRequest clearDelegatesAndCancel];
    [applyMetadataObjectRequest release];
    [pithosObject release];
    [pithosContainer release];
    [super dealloc];
}

#pragma mark -
#pragma mark Properties

- (NSString *)url {
    if (url == nil) 
        url = [[NSString alloc] initWithFormat:@"object %@/%@/%@", [ASIPithosRequest storageURL], pithosContainer.name, pithosObject.name];
    return url;
}

- (NSArray *)children {
    return nil;
}

- (NSString *)displayName {
    if (displayName == nil) {
        // XXX check if there are problems with . or other special characters
        displayName = [pithosObject.name lastPathComponent];
        if([pithosObject.name hasSuffix:@"/"])
            displayName = [displayName stringByAppendingString:@"/"];
        [displayName retain];
    }
    return [[displayName copy] autorelease];
}

- (NSImage *)icon {
    if (icon == nil)
        icon = [[[NSWorkspace sharedWorkspace] iconForFileType:[pithosObject.name pathExtension]] retain];
    return icon;
}

- (void)setPithosObject:(ASIPithosObject *)aPithosObject {
    if (![pithosObject isEqualTo:aPithosObject]) {
        [pithosObject release];
        pithosObject = [aPithosObject retain];
    }
    self.isPublic = (pithosObject.publicURI != nil);
}

#pragma mark -
#pragma mark Info

- (void)applyInfo {
    @synchronized(self) {
        if (applyMetadataObjectRequest == nil) {
            applyMetadataObjectRequest = [[ASIPithosObjectRequest updateObjectMetadataRequestWithContainerName:pithosContainer.name 
                                                                                                    objectName:pithosObject.name 
                                                                                               contentEncoding:nil
                                                                                            contentDisposition:nil 
                                                                                                      manifest:nil 
                                                                                                       sharing:pithosObject.sharing 
                                                                                                      isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse) 
                                                                                                      metadata:pithosObject.metadata
                                                                                                        update:NO] retain];
            applyMetadataObjectRequest.delegate = self;
            [applyMetadataObjectRequest startAsynchronous];
        }
    }
}

- (void)refreshInfo {
    @synchronized(self) {
        if (refreshMetadataObjectRequest == nil) {
            refreshMetadataObjectRequest = [[ASIPithosObjectRequest objectMetadataRequestWithContainerName:pithosContainer.name 
                                                                                                objectName:pithosObject.name] retain];
            refreshMetadataObjectRequest.delegate = self;
            refreshMetadataObjectRequest.downloadCache = [ASIDownloadCache sharedCache];
            [refreshMetadataObjectRequest startAsynchronous];
        }
    }
}

#pragma mark -
#pragma mark ASIHTTPRequestDelegate

- (void)requestFinished:(ASIHTTPRequest *)request {
    NSLog(@"URL: %@", [request url]);
    NSLog(@"cached: %d", [request didUseCachedResponse]);
    
    if ([request isEqualTo:applyMetadataObjectRequest]) {
        @synchronized(self) {
            [applyMetadataObjectRequest release];
            applyMetadataObjectRequest = nil;
        }
        [self refreshInfo];
    } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
        self.pithosObject = [refreshMetadataObjectRequest object];
        @synchronized(self) {
            [refreshMetadataObjectRequest release];
            refreshMetadataObjectRequest = nil;
        }
    }
}

- (void)requestFailed:(ASIHTTPRequest *)request {
    if ([request isEqualTo:applyMetadataObjectRequest]) {
        // XXX do something on error, cleanup
        NSLog(@"error:%@", [applyMetadataObjectRequest error]);
        @synchronized(self) {
            [applyMetadataObjectRequest release];
            applyMetadataObjectRequest = nil;
        }
    } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
        // XXX do something on error, cleanup
        NSLog(@"error:%@", [refreshMetadataObjectRequest error]);
        @synchronized(self) {
            [refreshMetadataObjectRequest release];
            refreshMetadataObjectRequest = nil;
        }
    }
}

@end