//#include <iostream>
#include "User.h"
#include "Parser.h"
#include "DBEngine.h"

using namespace std;

//Global objects used through the app
DBEngine engine;
vector<User> users;
vector<Board> boards;
vector<Message> mesages;
vector<Group> groups;
vector<Article> articles;
User currentUser;
//bool isLoggedIn = false;
vector<User> pendingAccounts;	//accounts waiting to be approved by the admin

void goToBoard()
{
	cout<<"*********************************"<<endl;
	cout<<"Board x"<<endl;
	cout<<"*********************************\n"<<endl;

	cout<<"0. Return to main menu"<<endl;
	cout<<"3. back to board menu"<<endl;
	cout<<"\n\nEnter choice:";
}

void boardList()
{
		cout<<"\n\nShowing all boards:"<<endl;
	
	
		cout<<"0. Return to main menu"<<endl;
		cout<<"3. Return to board menu"<<endl;
		cout<<"\n\nEnter choice:";

}


void boardMenu()
{
	cout<<"*********************************"<<endl;
	cout<<"Board Menu"<<endl;
	cout<<"*********************************\n"<<endl;
	cout<<"\n\n4. List of boards"<<endl;	
	cout<<"5. Go to board (enter shortcut[first few characters])"<<endl;
	cout<<"0. Return to main menu"<<endl;
	cout<<"\n\nEnter choice:";
	
}

void createNewAccount(string n, string pass, string phone, string fax, string postal, bool admin)
{
	User newUser(n,pass,phone,fax,postal,admin);
	users.push_back(newUser);

	cout<<"current users:"<<endl;
	
	for(int i = 0; i < users.size(); ++i)
	{
		cout<<users[i].getName()<<endl;
	}
	cout<<"account successfully created!"<<endl;
	
}

void addToPendingList(string n, string pass, string phone, string fax, string postal, bool admin)
{
	User newUser(n,pass,phone,fax,postal,admin);
	pendingAccounts.push_back(newUser);

	cout<<"Account successfully requested, waiting for admin to approve"<<endl;
	
} 

void newAccount()
{
	cout<<"*********************************"<<endl;
	cout<<"Request new account"<<endl;
	cout<<"*********************************\n"<<endl;
	
	string n, pass, phone, fax, postal;
	
	cout<<"Name: "<<endl;
	cin>>n;
	
	cout<<"\nPassword: "<<endl;
	cin>>pass;
	
	cout<<"\nPhone: "<<endl;
	cin>>phone;
	
	cout<<"\nFax: "<<endl;
	cin>>fax;
	
	cout<<"Postal code: "<<endl;
	cin>>postal;
	
	addToPendingList(n,pass,phone,fax,postal,false);
	
	
	
	cout<<"\n8. Return to login menu"<<endl;
	cout<<"\n\nEnter choice:";

}

void mainMenu()
{
	cout<<"\n\n***************"<<endl;
	cout<<"** Main Menu **"<<endl;
	cout<<"***************\n"<<endl;
	cout<<"10. View current users\n"<<endl;
	cout<<"\n6. Your account"<<endl;
	cout<<"5. Enter Command"<<endl;	
	cout<<"4. Articles"<<endl;	
	cout<<"3. Boards"<<endl;	
	cout<<"2. Messages"<<endl;
	cout<<"1. Groups\n"<<endl;
	if (currentUser.confirmAdmin() == true)
	{
		cout<<"9. View pending account requests\n"<<endl;
	}
	cout<<"8. Logout\n"<<endl;
	cout<<"Enter choice: ";
}

bool verifyCredentials(string n, string p)
{
	for(int i = 0; i < users.size(); ++i)
	{
		if (users[i].getName() == n && users[i].getPassword() == p) 
		{
			currentUser = users[i];
			return true;
		}
		
	}
	
}



void loginMenu()
{
	
	string name;
	string password;
	
	//loginCredentials c(name,password);
	
	cout<<"\n\n****************"<<endl;
	cout<<"****** Login Menu **"<<endl;
	cout<<"****************\n\n"<<endl;
	
	while (true)
	{
		
		cout<<"\nUsername: "<<endl;
		cin>>name;
		cin.clear();
		cin.ignore();
		
		cout<<"\nPassword: "<<endl;
		cin>>password;
		cin.clear();
		cin.ignore();
		
		if (verifyCredentials(name,password))
		{
			break;
		}
		
		else
		{
			cout<<"Invalid credentials!"<<endl;
		}
	}
	
	mainMenu();	
}



void startMenu()
{
	cout<<"\n\n** Enter BBS **"<<endl;
	cout<<"0. Login"<<endl;
	cout<<"7. Request new account\n\n";
	cout<<"-1. Exit\n\n"<<endl;
	cout<<"Enter choice: ";
}

void changeUsername() 
{
	cout<<"Enter new username: "<<endl;
	string userInput;
	cin.ignore();
	getline(cin, userInput);
	
	//currentUser.setName(userInput);
	parse(userInput, engine);
	
	mainMenu();
}

void changePassword() 
{
	cout<<"Enter new password: "<<endl;
	string userInput;
	cin.ignore();
	getline(cin, userInput);
	
	//currentUser.setPassword(userInput);
	parse(userInput, engine);
	mainMenu();
}

void changePhone() 
{
	cout<<"Enter new phone number: "<<endl;
	string userInput;
	cin.ignore();
	getline(cin, userInput);
	
	//currentUser.setPhone(userInput);
	parse(userInput, engine);
	mainMenu();
}

void changeFax() 
{
	cout<<"Enter new fax number: "<<endl;string userInput;
	cin.ignore();
	getline(cin, userInput);
	
	//currentUser.setFax(userInput);
	parse(userInput, engine);
	mainMenu();
}

void changePostal() 
{
	cout<<"Enter new fax number: "<<endl;string userInput;
	cin.ignore();
	getline(cin, userInput);
	
	//currentUser.setPostal(userInput);
	parse(userInput, engine);
	mainMenu();
}

void editAccountMenu()
{
	cout<<"*********************************"<<endl;
	cout<<"Edit Account"<<endl;
	cout<<"*********************************\n"<<endl;

	cout<<"0. Change Username"<<endl;
	cout<<"1. Change Password"<<endl;
	cout<<"2. Change Phone Number"<<endl;
	cout<<"3. Change Fax Number"<<endl;
	cout<<"4. Change Postal Number"<<endl;
	cout<<"5. Back to Main Menu"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: changeUsername(); break;
		case 1: changePassword(); break;
		case 2: changePhone(); break;
		case 3: changeFax(); break;
		case 4: changePostal(); break;
		case 5: mainMenu(); break;
	}
}

void yourAccount()
{
	cout<<"*********************************"<<endl;
	cout<<"Your Account"<<endl;
	cout<<"*********************************\n"<<endl;
	cout<<"\nName: "<< currentUser.getName() <<endl;
	cout<<"\nPassword: "<< currentUser.getPassword() <<endl;
	cout<<"\nPhone: "<< currentUser.getPhoneNumber() <<endl;
	cout<<"\nFax: "<< currentUser.getFaxNumber() <<endl;
	cout<<"\nPostal: "<< currentUser.getPostalAddress() <<endl;
	cout<<"\n1.Edit Account"<<endl;
	cout<<"\n0. Return to main menu"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: mainMenu(); break;
		case 1: editAccountMenu(); break;
	}
}

void showMessages()
{
	cout<<"\n\n0. Return to main menu"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: mainMenu(); break;
	}
}

void showBoards()
{
	parse("SHOW Boards ;", engine);
	
	cout<<"\n\n0. Return to main menu?"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: mainMenu(); break;
	}
}

void showCurrentUsers()
{
	
	parse("SHOW Users ;", engine);
	
	cout<<"\n\n0. Return to main menu?"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: mainMenu(); break;
	}
}

void showArticles()
{
	parse("SHOW Articles ;", engine);
	
	cout<<"\n\n0. Return to main menu?"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: mainMenu(); break;
	}
}

void showGroups()
{
	parse("SHOW Groups ;", engine);
	
	cout<<"\n\n0. Return to main menu?"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: mainMenu(); break;
	}
}

void enterCommand()
{
	
	string userInput;
	cin.ignore();
	getline(cin, userInput);
	
	parse(userInput, engine);
	
	cout<<"\n\n0. Return to main menu?"<<endl;
	cout<<"\n\nEnter choice:";
	
	int choice;
	cin >> choice;
	switch(choice)
	{
		case 0: mainMenu(); break;
	}
}

void approvePending()
{
	cout<<"\nEnter the user number to approve: "<<endl;
	int user;
	cin>>user;
	
	//make it idiotProof for invalid input?
	
	users.push_back(pendingAccounts[user]);
	pendingAccounts.erase(pendingAccounts.begin()+user);
	
	
	cout<<"Account approved!"<<endl;
	cout<<"\n\Enter 9 to go back to pending requestes"<<endl;
	
}

void rejectPending()
{
	cout<<"\nEnter the user number to reject: "<<endl;
	int user;
	cin>>user;
	
	//make it idiotProof for invalid input?
	
	pendingAccounts.erase(pendingAccounts.begin()+user);
	
	cout<<"Account rejected!"<<endl;
	cout<<"\nEnter 9 to go back to pending requestes"<<endl;
	
}

void displayPendingRequests()
{
	cout<<"current pendings: "<<endl;
	for (int i = 0; i < pendingAccounts.size(); ++i)
	{
		cout<<i<<" "<<pendingAccounts[i].getName()<<endl;
	}
	cout<<"\n\n11. Approve pending"<<endl;
	cout<<"12. Reject pending"<<endl;
	cout<<"13. Go back to Main Menu"<<endl;
	cout<<"\n\nEnter choice: ";
	
	//make it idiotProof?

}


void eventHandler(int choice)
{
	switch(choice)
	{
		case 0: loginMenu(); break;
		case 1: showGroups(); break;
		case 2:	showMessages(); break;
		case 3: showBoards(); break;
		case 4: showArticles(); break;
		case 5: enterCommand(); break;
		case 6: yourAccount(); break;
		case 7: newAccount(); break;
		case 8: startMenu(); break;
		case 10: showCurrentUsers(); break;
		case 13: mainMenu(); break;
		if (currentUser.confirmAdmin() == true)
		{
			case 9: displayPendingRequests(); break;
			case 11: approvePending(); break;
			case 12: rejectPending(); break;
		}
	}
	
}


int main()
{

	//Hard Coded Sample Tuples
	User u0("admin", "admin", "111-222-3333", "444-555-6666", "76432", true);
	User u1("Lo_Wang", "Rice", "098-765-4321", "454-455-1923", "45123", false);
	User u2("Duke", "Nukem", "123-456-7890", "464-555-5431", "12362", false);
	User u3("Caleb", "Blood", "107-293-4856", "474-655-3421", "42231", false);
	User u4("Taggert", "Green", "666-666-6666", "484-755-6317", "66666", false);
	users.push_back(u0); 
	users.push_back(u1);
	users.push_back(u2);
	users.push_back(u3);
	users.push_back(u4);
	
	Message m0("JOHN_CENA", "Duke", "10/6/2015", "Who's champ?");
	Message m1("Taggert", "Caleb", "12/24/1997", "I'm faster");
	Message m2("Caleb", "Lo Wang", "4/13/1998", "Extra crispy");
	mesages.push_back(m0); 
	mesages.push_back(m1);
	mesages.push_back(m2);

	//User Relation & Attributes
	Attribute userAt1("Name", "VARCHAR(20)", true);
	Attribute userAt2("Phone Number", "VARCHAR(20)", false);
	Attribute userAt3("Fax Number", "VARCHAR(20)", false);
	Attribute userAt4("Postal Address", "VARCHAR(20)", false);
	vector<Attribute> userAttributes;
	userAttributes.push_back(userAt1);
	userAttributes.push_back(userAt2);
	userAttributes.push_back(userAt3);
	userAttributes.push_back(userAt4);
	//Relation userRelation("User Relation", userAttributes);
	
	//Message Relation & Attributes
	Attribute messageAt1("Sender", "VARCHAR(20)", true);
	Attribute messageAt2("Receiver", "VARCHAR(20)", false);
	Attribute messageAt3("Time Stamp", "VARCHAR(20)", false);
	Attribute messageAt4("Text", "VARCHAR(20)", false);
	vector<Attribute> messageAttributes;
	messageAttributes.push_back(messageAt1);
	messageAttributes.push_back(messageAt2);
	messageAttributes.push_back(messageAt3);
	messageAttributes.push_back(messageAt4);
	//Relation messageRelation("Messages", messageAttributes);

	
	//Board Relation & Attributes
	Attribute boardAt1("Name", "VARCHAR(20)", true);
	Attribute boardAt2("Description", "VARCHAR(20)", false);
	Attribute boardAt3("Group", "VARCHAR(20)", false);
	vector<Attribute> boardAttributes;
	boardAttributes.push_back(boardAt1);
	boardAttributes.push_back(boardAt2);
	boardAttributes.push_back(boardAt3);
	//Relation boardRelation("Board Relation", boardAttributes);
	
	//Group Relation & Attributes
	Attribute groupAt1("Name", "VARCHAR(20)", true);
	Attribute groupAt2("Description", "VARCHAR(20)", false);
	vector<Attribute> groupAttributes;
	groupAttributes.push_back(groupAt1);
	groupAttributes.push_back(groupAt2);
	Relation groupRelation("Group Relation", groupAttributes);
	
	//Article Relation & Attributes
	Attribute articleAt1("Author", "VARCHAR(20)", true);
	Attribute articleAt2("Time Stamp", "VARCHAR(20)", false);
	Attribute articleAt3("Length", "VARCHAR(20)", false);
	vector<Attribute> articleAttributes;
	articleAttributes.push_back(articleAt1);
	articleAttributes.push_back(articleAt2);
	articleAttributes.push_back(articleAt3);
	//Relation articleRelation("Article Relation", articleAttributes);
	
	
	
	cout<<"***************************************"<<endl;
	cout<<"Welcome to our BBS                     "<<endl;
	cout<<"***************************************"<<endl;
	
	parse("OPEN Users ;", engine);
	
	eventHandler(8);
	
	int choice;
	
	
		while (choice != -1)
		{
			cin>>choice;
			eventHandler(choice);
		}
	
	engine.save();
}