package dev.peerat.mapping.providers.mysql;

import java.util.ArrayList;
import java.util.List;

import dev.peerat.parser.java.Value;
import dev.peerat.parser.java.Value.LambdaValue;
import dev.peerat.parser.java.Value.MethodCallValue;

public class MySQLRequestBuilder{
	
	private List<MethodCallValue> calls;
	private String select;
	private String from;
	
	public MySQLRequestBuilder(List<MethodCallValue> calls){
		this.calls = calls;
	}
	
	private String toStringOperation(MethodCallValue value){
		String method = value.getToken().getValue();
		if(method.equals("selectAll()")){
			return "SELECT *";
		}
		if(method.equals("select()")){
			LambdaValue include = (LambdaValue) value.getParameters().get(0);
			MethodCallValue keep = (MethodCallValue)include.getOperations().get(0);
			List<String> binds = new ArrayList<>();
			for(Value param : keep.getParameters()){
				binds.add(param.getToken().getValue());
			}
			String result = ""; //optimise with iterator
			for(String bind : binds) result+=","+bind;
			result=result.substring(1);
			return "SELECT "+result;
		}
			
		return null;
	}
	
	public void build(){
		this.select = toStringOperation(calls.get(0));
		throw new RuntimeException(this.select);
	}

}