//
// Licensed under the terms in License.txt
//
// Copyright 2010 Allen Ding. All rights reserved.
//

#import "KWItNode.h"
#import "KWExampleNodeVisitor.h"
#import "KWExample.h"
#import "KWVerifying.h"
#import "KWContextNode.h"

@interface KWItNode ()

@property (nonatomic, weak) KWContextNode *context;

@end

@implementation KWItNode

#pragma mark - Initializing

+ (id)itNodeWithCallSite:(KWCallSite *)aCallSite 
             description:(NSString *)aDescription 
                 context:(KWContextNode *)context 
                   block:(void (^)(void))block {
    KWItNode *itNode = [[self alloc] initWithCallSite:aCallSite description:aDescription block:block];
    itNode.context = context;
    return itNode;
}

#pragma mark - Accepting Visitors

- (void)acceptExampleNodeVisitor:(id<KWExampleNodeVisitor>)aVisitor {
    [aVisitor visitItNode:self];
}

#pragma mark - Runtime Description support

- (NSString *)description {
    NSString *description = [super description];
    if (description == nil) {
        description = [self.example generateDescriptionForAnonymousItNode];
    }
    return description;
}

#pragma mark - Accessing the context stack

- (NSArray *)contextStack {
    NSMutableArray *contextStack = [NSMutableArray array];
    
    KWContextNode *currentContext = _context;
    
    while (currentContext) {
        [contextStack addObject:currentContext];
        currentContext = currentContext.parentContext;
    }
    return contextStack;
}

@end