/*
 *  parseUtils.m
 *  Geopher iPad
 *
 *  Created by Jeremy on 11/29/10.
 *  Copyright 2010 Stone Software. All rights reserved.
 *
 */

#include "ParseUtils.h"


#import "TouchXML.h"
#import "SavedCachesController.h"
#import "XMLReader.h"


#pragma mark -


NSArray* parseGPXFileToDict_OpenCachingFormat(NSString* path)
{
	NSArray* retVal = nil;
	NSError* err = nil;
	NSData* data = [NSData dataWithContentsOfFile:path];
	if (data)
	{
		NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
		NSString *documentsDirectory = [paths objectAtIndex:0];

		NSDictionary* dict = [XMLReader dictionaryForXMLData:data error:&err];
		if (!err)
		{
			[dict writeToFile:[documentsDirectory stringByAppendingPathComponent:@"aaaTextFile.txt"] atomically:YES];

			id root = [dict objectForKey:@"gpx"];
			id obj = [root objectForKey:kGPXWaypoint];
			if (obj)
			{
				if ([obj isKindOfClass:[NSArray class]])
					retVal = obj;										// return the array
				else if ([obj isKindOfClass:[NSDictionary class]])
					retVal = [NSArray arrayWithObject:obj];				// return as an array of one
			}
		}
		else
		{
			NSLog(@"Error parsing XML file, error %hi, %@", [err code], [err localizedDescription]);
		}
	}
	
	if (!retVal)
		retVal = [NSArray array];		// always return something, may just be an empty array.

	return retVal;
}


// This will parse all geocaches out of a GPX file and return them in an array.
//
NSArray* parseGPXFileToDict(NSString* inFilePath)
{
	NSArray* retVal = nil;
	NSMutableArray* ourArray = [NSMutableArray array];

	retVal = parseGPXFileToDict_OpenCachingFormat(inFilePath);

//	NSString* str = nil;
//	if (inFilePath)
//	{
//		NSError* err = nil;
//		NSStringEncoding encoding = 0;
//		str = [NSString stringWithContentsOfFile:inFilePath usedEncoding:&encoding error:&err];
//	}
//	
//	// now parse the string
//	if (str)
//	{
//		NSError* err = nil;
//		CXMLDocument* doc = [[CXMLDocument alloc] initWithXMLString:str options:CXMLDocumentTidyXML error:&err];
//		CXMLElement* root = [doc rootElement];
//		NSArray* authorList = [root elementsForName:kGPXAuthor];
//		if (authorList && [authorList count])
//		{
//			NSString* author = [authorList objectAtIndex:0];
//			if ([author rangeOfString:@"OpenCaching"].location != NSNotFound)
//				retVal = parseGPXFileToDict_OpenCachingFormat(inFilePath);
//		}
//		else 
//		{
//			// assume openCaching format if we aren't sure.
//			retVal = parseGPXFileToDict_OpenCachingFormat(inFilePath);
//		}
//		
//		[doc release];
//	}
	
	if ([ourArray count])
		retVal = ourArray;
	
	return retVal;
}


#pragma mark -


// This will parse all "waypoint" types out of a LOC file and return them in an array.
//
NSArray* parseLocFileToDict(NSString* inFilePath)
{
	NSArray* retVal = nil;
	NSMutableArray* ourArray = [NSMutableArray array];
	NSString* str = nil;
	
	if (inFilePath)
	{
		NSError* err = nil;
		NSStringEncoding encoding = 0;
		str = [NSString stringWithContentsOfFile:inFilePath usedEncoding:&encoding error:&err];
	}
	
	// now parse the string
	if (str)
	{
		NSError* err = nil;
		CXMLDocument* doc = [[CXMLDocument alloc] initWithXMLString:str options:CXMLDocumentTidyXML error:&err];
		CXMLElement* root = [doc rootElement];
		NSArray* waypoints = [root elementsForName:kLOCWaypointName];
		for (CXMLNode* node in waypoints)
		{
			// each iteration is a single waypoint entry in our list.
			NSMutableDictionary* dict = [NSMutableDictionary dictionary];
			NSArray* info = [node children];
			
			for (CXMLNode* data in info)
			{
				BOOL add = YES;		// set to no to skip
				
				if ([data kind] == CXMLElementKind)
				{
					CXMLElement* ele = (CXMLElement*)data;
					
					// pull out any attributes we may want into our dict as we go.
					NSArray* attribs = [ele attributes];
					for (CXMLNode* nd in attribs)
					{
						if ([nd.name isEqualToString:kLOCLatitudeNodeName])
							[dict setObject:[nd stringValue] forKey:kLOCLatitudeNodeName];
						else if ([nd.name isEqualToString:kLOCLongitudeNodeName])
							[dict setObject:[nd stringValue] forKey:kLOCLongitudeNodeName];
						else if ([nd.name isEqualToString:kLOCCacheGeocode])
							[dict setObject:[nd stringValue] forKey:kLOCCacheGeocode];
						else
							add = NO;
					}
				}
				
				if ([[data stringValue] length] == 0)
					add = NO;
				else if ([data kind] == CXMLTextKind)
					add = NO;
				
				if (add)
					[dict setObject:[data stringValue] forKey:[data name]];
			}
			
			if ([dict count] > 0)
				[ourArray addObject:dict];
		}
		
		[doc release];
	}
	
	if ([ourArray count])
		retVal = ourArray;
	
	return retVal;
}