#include <fstream>
#include <iostream>
#include <vector>
#include "Relation.h"

//still in progress
class DBEngine {
	vector<Relation> tables;
	int size;

public:
	DBEngine(){
		size = 0;
	}

	void createTable(string n) {
		Relation r(n);
		tables.push_back(r);
		size++;
	}

	void createTable(string n, vector<Attribute> a) {
		Relation r(n, a);
		tables.push_back(r);
		size++;
	}
	
	void createTable(Relation r){ 
		tables.push_back(r); 
		size++;
	}
	
	vector<Relation> getRelations(){ return tables; }
	//void showTable(Relation r){}
	
	Relation getTableFromName(string n){
		//will return first occurence
		for(int i = 0; i < tables.size(); i++){
			if (tables[i].getTableName() == n){
				return tables[i];
			}
		}
	}
	
	void saveToFile(vector<string> cmds){ 
		//writes nothing meaningful
		ofstream file;
		file.open("savefile.db");
		
		for(int i = 0; i < cmds.size(); ++i){
			file << cmds[i] << endl;
		}
		
		file.close();
	}
};