import IGrammarProvider from "./IGrammarProvider";
import GTestContext from "./GTestContext";
import { ITypeManifest, IIterator, ArrayIterator } from "@cafetextual/util";
import Assert from "@cafetextual/util/dist/src/assert/Assert";
import SeepGrammar from "../parser/SeepGrammar";


/**
 * Context for all GrammarTestSuites
 * 
 *  - contains referenceable grammars etc
 * 
 */
export default class GSuiteContext implements IGrammarProvider
{
	
	constructor(manifest:ITypeManifest)
	{
		this._manifest = manifest;
	}
	

	
	private _manifest:ITypeManifest;
	
	private _ambientGrammars:{[uri:string]:SeepGrammar} = {}; // {[suri:string]:SeepGrammar}  = {}
	private _testContexts:Array<GTestContext> = []


	
	getTestcontexts():Array<GTestContext> {
		return this._testContexts
	}

	addTests(testContext:GTestContext):void {
		this._testContexts.push(testContext);
	}
	
	
	hasGrammar(suri:string):boolean {
		return (this._ambientGrammars[suri] != null);
	}
	
	registerGrammar(grammar:SeepGrammar):void {
		Assert.assert(grammar.isValid());
		console.log(" registering grammar " + grammar.provUri)
		this._ambientGrammars[grammar.provUri] =  grammar;
	} // registerGrammar
	
	
	getGrammar(suri:string):SeepGrammar {
		return this._ambientGrammars[suri];
	}
	
	
	getManifest():ITypeManifest {
		return this._manifest;
	}

	it():IIterator<GTestContext> {
		return new ArrayIterator<GTestContext>(this._testContexts)
	}
	
		
	
} // class