//

//  MGTwitterStatusesParser.m

//  MGTwitterEngine

//

//  Created by Matt Gemmell on 11/02/2008.

//  Copyright 2008 Instinctive Code.

//

#import "MGTwitterStatusesParser.h"

@implementation MGTwitterStatusesParser

#pragma mark NSXMLParser delegate methods

- (void)parser:(NSXMLParser *)theParser didStartElement:(NSString *)elementName 

  namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName 

    attributes:(NSDictionary *)attributeDict

{

    //NSLog(@"Started element: %@ (%@)", elementName, attributeDict);

    [self setLastOpenedElement:elementName];

    if ([elementName isEqualToString:@"status"]) {

        // Make new entry in parsedObjects.

        NSMutableDictionary *newNode = [NSMutableDictionary dictionaryWithCapacity:0];

        [parsedObjects addObject:newNode];

        currentNode = newNode;		

    } else if ([elementName isEqualToString:@"user"]) {

        // Add a 'user' dictionary to current node.

        NSMutableDictionary *newNode = [NSMutableDictionary dictionaryWithCapacity:0];

        [currentNode setObject:newNode forKey:elementName];

        currentNode = newNode;

	} else if ([elementName isEqualToString:@"retweeted_status"]) {

        // Add a 'retweeted_status' dictionary to current node.

        NSMutableDictionary *newNode = [NSMutableDictionary dictionaryWithCapacity:0];

        [currentNode setObject:newNode forKey:elementName];

        currentNode = newNode;		

    } else if (currentNode) {

        // Create relevant name-value pair.

        [currentNode setObject:[NSMutableString string] forKey:elementName];

    }

}

- (void)parser:(NSXMLParser *)theParser foundCharacters:(NSString *)characters

{

    //NSLog(@"Found characters: %@", characters);

    // Append found characters to value of lastOpenedElement in currentNode.

    if (lastOpenedElement && currentNode) {

        [[currentNode objectForKey:lastOpenedElement] appendString:characters];

    }

}

- (void)parser:(NSXMLParser *)theParser didEndElement:(NSString *)elementName 

  namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName

{

    [super parser:theParser didEndElement:elementName namespaceURI:namespaceURI qualifiedName:qName];

    if ([elementName isEqualToString:@"user"] || [elementName isEqualToString:@"retweeted_status"]) {

        currentNode = [parsedObjects lastObject];

    } else if ([elementName isEqualToString:@"status"]) {

        [self addSource];

        currentNode = nil;

    }

}

@end