package slangc.model.clauses;

import slang.data.List;
import slangc.api.Reporter;
import slangc.model.ClauseModel;
import slangc.model.InnerTypeScope;
import slangc.model.MemberModel;
import slangc.model.Named;
import slangc.model.StatementModel;
import slangc.model.StatementOwner;
import slangc.model.TypeModel;
import slangc.model.InnerTypeScope.SourceScope;
import slangc.model.statements.VariableStatement;
import slangc.parser.Branch;
import slangc.parser.Node;
import slangc.parser.NodeType;

public class SwitchMembers extends ClauseModel implements StatementOwner {
	private List<StatementModel> statements = new List<StatementModel>();
	private InnerTypeScope.SourceScope typeScope;

	public SwitchMembers(StatementOwner owner, Branch source) {
		super(owner, source);
		for (int i = 0; i < source.countSubnodes(); i++) {
			if (source.getSubnode(i).getNodeType() != NodeType.SEMICOLON) {
				statements.append(StatementModel.construct(this, source.getSubnode(i)));
			}
		}
		typeScope = owner.getTypeScope().getInnerScopeForSource(source);
	}

	//@Override
	public InnerTypeScope getTypeScope() {
		return typeScope == null ? getOwner().getTypeScope() : typeScope;
	}
	
	@Override
	public void dump(Reporter reporter, String indent, String incr) {
		reporter.note("DUMP", indent + "> Switch members:");
		for (int i = 0; i < statements.count(); i++) {
			StatementModel s = statements.get(i);
			s.dump(reporter, indent + incr, incr);
		}
	}
	
	@Override
	public int resolveExpressions() {
		int nresolved = 0;
		
		for (int i = 0; i < statements.count(); i++) {
			StatementModel s = statements.get(i);
			nresolved += s.resolveExpressions();
		}
		
		return nresolved;
	}
	
	//@Override
	public TypeModel resolveType(Node subnode) {
		return getTypeScope().resolveTypeReference(subnode);
	}
	//@Override
	public MemberModel getMethodOrField() {
		return getOwner().getMethodOrField();
	}
	
	@Override
	public Named lookupSimpleName(String name) {
		for (int i = 0; i < statements.count(); i++) {
			StatementModel s = statements.get(i);
			if (s instanceof VariableStatement) {
				VariableStatement vs = (VariableStatement) s;
				if (vs.hasVariable(name)) {
					return vs.getVariable(name);
				}
			}
		}
		
		if (typeScope != null) {
			if (typeScope.hasInnerType(name)) {
				return typeScope.getInnerType(name);
			}
		}
		
		return super.lookupSimpleName(name);
	}
	
	public int countMembers() {
		return statements.count();
	}
	
	public StatementModel getMember(int i) {
		return statements.get(i);
	}
}