IdentifierGenerator is not working ideally

Right now, identifierGenerator works like this:

medusa/src/main/java/io/getmedusa/medusa/core/util/IdentifierGenerator.java

Lines 5 to 16 in bc39079

    
           private IdentifierGenerator() {} 
        
           //TODO: Not ideal, IDs should be unique but also reproducable 
        
           //Hash is not guaranteed unique, especially based on content (same content = same id) 
        
           public static String generateIfID(String value) { 
        
               return "if-" + Math.abs(value.hashCode()); 
        
           } 
        
           public static String generateTemplateID(String value) { 
        
               return "t-" + Math.abs(value.hashCode()); 
        
           }

And that's potentially a little dangerous.

Imagine scenario:
You have two iterations on the same content, as such:

[$foreach $items-bought]
    <p>Medusa</p>
[$end]

[$foreach $items-bought]
    <p>Medusa</p>
[$end]

The ID would only hash the content, so it would generate the same for both iterations - causing confusion and invalid HTML (id needs to be unique).

But at the same time I need to make sure that no matter how many refreshes you do, it always generates the same ID (otherwise the ConditionalRegistry or IterationRegistry does not have the right reference -> you get a situation where things work until you refresh).

Not sure what the best solution for this is.

Possible fix in PR #40

Changes:

IterationTag: use m-id instead of id for the template
websocket.js: loop through each template-element with an m-id

example page: http://localhost:8080/history

	private IdentifierGenerator() {}

	//TODO: Not ideal, IDs should be unique but also reproducable
	//Hash is not guaranteed unique, especially based on content (same content = same id)

	public static String generateIfID(String value) {
	return "if-" + Math.abs(value.hashCode());
	}

	public static String generateTemplateID(String value) {
	return "t-" + Math.abs(value.hashCode());
	}