/*

     File: SAMObject.h

 Abstract: SimpleAssetManager base object classs for scriptable object.

  Version: 1.0

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 */

#import <Foundation/Foundation.h>

#define OBJECT_SPECIFIER_TYPE_NAME          0

#define OBJECT_SPECIFIER_TYPE_INDEX         1

#define OBJECT_SPECIFIER_TYPE_UNIQUE_ID     2

#define OBJECT_SPECIFIER_TYPE               OBJECT_SPECIFIER_TYPE_UNIQUE_ID

/* The SAMObject class is the root class for all of the AppleScript

 objects we provide in our application.

 It is in this class that take care of most of the 'infrastructure'

 type operations needed for maintaining our objects.  In our application

 we assume that all of our objects will have a 'name' property and an

 'id' property and we maintain those properties in this class.

 Given that's taken care of here, we implement the objectSpecifier method

 based on the id property.  By doing that here, we don't have to worry about

 implementing an objectSpecifier method in any of our other sub-classes.

 For most intentions and purposes, you should be able to use this class

 unmodified as a superclass for your own scriptable objects.

 */

@interface SAMObject : NSObject 

/* storage management

 The normal sequence of events when an object is created is as follows:

 1. an AppleScript 'make' command will allocate and initialize an instance

 of the class it has been asked to create.  For example, it may create a Trinket.

 2. then it will call the insertInXXXXX: insertInXXXXX:atIndex: method on the container

 object where the new object will be stored.  For example, if we were being asked

 to create a Trinket in a Bucket, then the make command would create an instance

 of Trinket and then it would call insertInTrinkets: on the Bucket object.

 3. Inside of the insertInXXXXX: or insertInXXXXX:atIndex: you must record the

 parent object and the parent's property key for the new object being created so

 you can create a objectSpecifier later.  In this class, we have defined the

 setContainer:andProperty: for that purpose.  For example, inside of our

 insertInTrinkets: method on our Bucket object, we the setContainer:andProperty:

 method on the trinket object like so:

 [trinket setContainer:self andProperty:@"trinkets"]

 to inform the trinket object who its container is and the name of the Cocoa key

 on that container object used for the list of trinkets.

 */

-(instancetype)init;

- (void)dealloc;

/* ensuring that the id values we are using for unique ids are unique

 is essential go good operation.  Here we provide a class method to vend

 unique id values for use with our objects.  */

+ (NSString *)calculateNewUniqueID;

/* properties for the container and containerProperty fields. */

@property (readonly) id container;

@property (readonly) NSString *containerProperty;

/* since the container and containerProperty fields are always set at the

 same time, we have lumped those setter calls together into one call that

 sets both. */

- (void)setContainer:(id)value andProperty:(NSString *)property;

/* kvc Cocoa property for the 'id' AppleScript property */

@property (copy) NSString *uniqueID;

/* kvc Cocoa property for the 'name' AppleScript property */

@property (copy) NSString *name;

/* calling objectSpecifier asks an object to return an object specifier

 record referring to itself.  You must call setContainer:andProperty: before

 you can call this method.   see the explanation above.

 Note: this routine assumes you have added a objectSpecifier method to

 a category of NSApplication that always returns nil (the default value

 for the application class).  */

- (NSScriptObjectSpecifier *)objectSpecifier;

@end