/*
 * PhoneGap is available under *either* the terms of the modified BSD license *or* the
 * MIT License (2008). See http://opensource.org/licenses/alphabetical for full text.
 * 
 * Copyright (c) 2005-2010, Nitobi Software Inc.
 * Copyright (c) 2010, IBM Corporation
 */

#import "Camera.h"
#import "NSData+Base64.h"
#import "Categories.h"
#import "PhonegapDelegate.h"
#import <MobileCoreServices/UTCoreTypes.h>

@implementation Camera

@synthesize pickerController;

-(BOOL)popoverSupported
{
	return ( NSClassFromString(@"UIPopoverController") != nil) && 
	(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad);
}

- (void) getPicture:(NSMutableArray*)arguments withDict:(NSMutableDictionary*)options
{
	NSString* callbackId = [arguments objectAtIndex:0];
	
	NSString* sourceTypeString = [options valueForKey:@"sourceType"];
	UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera; // default
	if (sourceTypeString != nil) 
	{
		sourceType = (UIImagePickerControllerSourceType)[sourceTypeString intValue];
	}

	bool hasCamera = [UIImagePickerController isSourceTypeAvailable:sourceType];
	if (!hasCamera) {
		NSLog(@"Camera.getPicture: source type %d not available.", sourceType);
		return;
	}

    bool allowEdit = [[options valueForKey:@"allowEdit"] boolValue];
	
	
	if (self.pickerController == nil) 
	{
		self.pickerController = [[CameraPicker alloc] init];
	}
	
	self.pickerController.delegate = self;
	self.pickerController.sourceType = sourceType;
	self.pickerController.allowsEditing = allowEdit; // THIS IS ALL IT TAKES FOR CROPPING - jm
	self.pickerController.callbackId = callbackId;

	self.pickerController.quality = [options integerValueForKey:@"quality" defaultValue:100 withRange:NSMakeRange(0, 100)];
	self.pickerController.returnType = (DestinationType)[options integerValueForKey:@"destinationType" defaultValue:0 withRange:NSMakeRange(0, 2)];
	
	if([self popoverSupported])
	{
		if (self.pickerController.popoverController == nil) 
		{ 
			self.pickerController.popoverController = [[NSClassFromString(@"UIPopoverController") alloc] 
												  initWithContentViewController:self.pickerController]; 
		} 
		self.pickerController.popoverController.delegate = self; 
		
		
		[ self.pickerController.popoverController presentPopoverFromRect:CGRectMake(0,32,320,480)
											 inView:[webView superview]
											 permittedArrowDirections:UIPopoverArrowDirectionAny 
											 animated:YES]; 
	}
	else 
	{ 
        [[super appViewController] 
		 presentModalViewController:self.pickerController animated:YES]; 
	} 
}


- (void)popoverControllerDidDismissPopover:(id)popoverController
{
	[ self imagePickerControllerDidCancel:self.pickerController ];	
}

- (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary*)info
{

	CGFloat quality = self.pickerController.quality / 100.0f; 
	NSString* callbackId =  self.pickerController.callbackId;
	
	if([self popoverSupported])
	{
		[self.pickerController.popoverController dismissPopoverAnimated:YES]; 
		self.pickerController.popoverController.delegate = nil;
		self.pickerController.popoverController = nil;
	}
	else 
	{
		[self.pickerController dismissModalViewControllerAnimated:YES]; 
	}
	
	NSString* mediaType = [info objectForKey:UIImagePickerControllerMediaType];
	if ([mediaType isEqualToString:(NSString*)kUTTypeImage])
	{
		
		NSString* jsString = NULL;
		PluginResult* result = nil;
		
		// get the image
		UIImage* image = nil;
		if (self.pickerController.allowsEditing && [info objectForKey:UIImagePickerControllerEditedImage]){
			image = [info objectForKey:UIImagePickerControllerEditedImage];
		}else {
			image = [info objectForKey:UIImagePickerControllerOriginalImage];
		}
		NSData* data = UIImageJPEGRepresentation(image, quality);
		if (self.pickerController.returnType == DestinationTypeFileUri){
			
			// write to temp directory and reutrn URI
			// get the temp directory path
			NSString* docsPath = [[PhoneGapDelegate applicationDocumentsDirectory] stringByAppendingPathComponent: [PhoneGapDelegate tmpFolderName]];
			NSError* err = nil;
			NSFileManager* fileMgr = [[NSFileManager alloc] init]; //recommended by apple (vs [NSFileManager defaultManager]) to be theadsafe
			
			
			if ( [fileMgr fileExistsAtPath:docsPath] == NO ){ // check in case tmp dir got deleted
				[fileMgr createDirectoryAtPath:docsPath withIntermediateDirectories: NO attributes: nil error: nil];
			}
			// generate unique file name
			NSString* filePath;
			int i=1;
			do {
				filePath = [NSString stringWithFormat:@"%@/photo_%03d.jpg", docsPath, i++];
			} while([fileMgr fileExistsAtPath: filePath]);
			// save file
			if (![data writeToFile: filePath options: NSAtomicWrite error: &err]){
				result = [PluginResult resultWithStatus: PGCommandStatus_OK messageAsString: [err localizedDescription]];
				jsString = [result toErrorCallbackString:callbackId];
				//jsString = [NSString stringWithFormat:@"%@(\"%@\");", cameraPicker.errorCallback, [err localizedDescription]];
			}else{
				result = [PluginResult resultWithStatus: PGCommandStatus_OK messageAsString: [NSURL fileURLWithPath: filePath]];
				jsString = [result toSuccessCallbackString:callbackId];
				//jsString = [NSString stringWithFormat:@"%@(\"%@\");", cameraPicker.successCallback, [NSURL fileURLWithPath: filePath]];
			}
			[fileMgr release];
			
		}else{
			result = [PluginResult resultWithStatus: PGCommandStatus_OK messageAsString: [data base64EncodedString]];
			jsString = [result toSuccessCallbackString:callbackId];
		}
		[webView stringByEvaluatingJavaScriptFromString:jsString];
		
	}
	
	self.pickerController.delegate = nil;
	self.pickerController = nil;
}

// older api calls newer didFinishPickingMediaWithInfo
- (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingImage:(UIImage*)image editingInfo:(NSDictionary*)editingInfo
{
	NSDictionary* imageInfo = [NSDictionary dictionaryWithObject:image forKey:UIImagePickerControllerOriginalImage];
	[self imagePickerController:picker didFinishPickingMediaWithInfo: imageInfo];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController*)picker
{
	CameraPicker* cameraPicker = (CameraPicker*)picker;
	NSString* callbackId = cameraPicker.callbackId;
	
	[picker dismissModalViewControllerAnimated:YES];
	// return media Capture error value for now (will update when implement MediaCapture api)
	PluginResult* result = [PluginResult resultWithStatus: PGCommandStatus_OK messageAsString: @"3"]; // error callback expects string ATM
	[webView stringByEvaluatingJavaScriptFromString:[result toErrorCallbackString: callbackId]];
	
	if([self popoverSupported])
	{
		self.pickerController.popoverController.delegate = nil;
		self.pickerController.popoverController = nil;
	}
	
	self.pickerController.delegate = nil;
	self.pickerController = nil;
	
}

- (void) postImage:(UIImage*)anImage withFilename:(NSString*)filename toUrl:(NSURL*)url 
{
	NSString *boundary = @"----BOUNDARY_IS_I";

	NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
	[req setHTTPMethod:@"POST"];
	
	NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
	[req setValue:contentType forHTTPHeaderField:@"Content-type"];
	
	NSData *imageData = UIImagePNGRepresentation(anImage);
	
	// adding the body
	NSMutableData *postBody = [NSMutableData data];
	
	// first parameter an image
	[postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
	[postBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"upload\"; filename=\"%@\"\r\n", filename] dataUsingEncoding:NSUTF8StringEncoding]];
	[postBody appendData:[@"Content-Type: image/png\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
	[postBody appendData:imageData];
	
//	// second parameter information
//	[postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
//	[postBody appendData:[@"Content-Disposition: form-data; name=\"some_other_name\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
//	[postBody appendData:[@"some_other_value" dataUsingEncoding:NSUTF8StringEncoding]];
//	[postBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r \n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
	
	[req setHTTPBody:postBody];
	
	NSURLResponse* response;
	NSError* error;
	[NSURLConnection sendSynchronousRequest:req returningResponse:&response error:&error];

//  NSData* result = [NSURLConnection sendSynchronousRequest:req returningResponse:&response error:&error];
//	NSString * resultStr =  [[[NSString alloc] initWithData:result encoding:NSUTF8StringEncoding] autorelease];
}


- (void) dealloc
{
	if (self.pickerController) 
	{
		self.pickerController.delegate = nil;
	}
	self.pickerController = nil;
	[super dealloc];
}

@end


@implementation CameraPicker

@synthesize quality, postUrl;
@synthesize returnType;
@synthesize callbackId;
@synthesize popoverController;


- (void) dealloc
{
	if (callbackId) {
		[callbackId release];
	}
	
	
	[super dealloc];
}

@end