/*
Script Subtypes:
	kAppleScriptSubtype - AppleScript (Default)
	'Jscr' - JavaScript (if installed)
*/

#import "ITOSAScript.h"
#import "ITOSAComponent.h"

// To do - Error Dictionaries

@implementation ITOSAScript

- (id)init
{
	return nil; // initWithSource: is the designated initializer for this class
}

- (id)initWithContentsOfFile:(NSString *)path
{
	return [self initWithSource:[[[NSString alloc] initWithContentsOfFile:path] autorelease]];
}

- (id)initWithSource:(NSString *)source
{
	if ( (self = [super init]) ) {
		_source = [source copy];
		_scriptID = kOSANullScript;
	}
	return self;
}

- (void)dealloc
{
	if (_scriptID != kOSANullScript) {
		OSADispose([_component componentInstance], _scriptID);
	}
	
	[_source release];
	[super dealloc];
}

- (NSString *)source
{
	return _source;
}

- (ITOSAComponent *)component
{
	return _component;
}

- (void)setComponent:(ITOSAComponent *)newComponent
{
	_component = newComponent;
}

- (BOOL)compileAndReturnError:(NSDictionary **)errorInfo
{
	if ([_component componentInstance] == nil) {
		//Set the error dictionary
		return NO;
	}
	
	AEDesc moof;
	AECreateDesc(typeChar, [_source cString], [_source cStringLength], &moof);
	if (OSACompile([_component componentInstance], &moof, kOSAModeNull, &_scriptID) != 0) {
		NSLog(@"Compile error!");
		return NO;
	}
	return YES;
}

- (BOOL)isCompiled
{
	return (_scriptID != kOSANullScript);
}

- (NSAppleEventDescriptor *)executeAndReturnError:(NSDictionary **)errorInfo
{
	if ([_component componentInstance] == nil) {
		//Set the error dictionary
		return nil;
	}
	
	NSAppleEventDescriptor *cocoaDesc;
	
	AEDesc scriptDesc, resultDesc;
	OSAID resultID = kOSANullScript;
	
	//If not compiled, compile it
	if (![self isCompiled]) {
		if (![self compileAndReturnError:nil]) {
			//Set the error info dictionary
			return nil;
		}
	}
	
	OSAExecute([_component componentInstance], _scriptID, kOSANullScript, kOSANullMode, &resultID);
	
	OSACoerceToDesc([_component componentInstance], resultID, typeWildCard, kOSAModeNull, &resultDesc); // Using this instead of OSADisplay, as we don't care about human readability, but rather, the integrity of the data.
	
	cocoaDesc = [[NSAppleEventDescriptor alloc] initWithAEDescNoCopy:&resultDesc];
	
	AEDisposeDesc(&scriptDesc);
	
	OSADispose([_component componentInstance], resultID);
	
	return [cocoaDesc autorelease];
}

@end