#include <iostream>
#include <fstream>
#include "profiles.h"
#include "prompts.h"

using namespace std;

bool loggedIn = false;
int max_profiles = 5;

struct base_profile {
    string profile_username;
    string profile_password;
    int profile_id;
} profile_array[max_profiles];

void registerProfile(string profile_username, string profile_password) {
    /* Declare Local Variables */
    int i;
    string fileName;

    /* Loop through all profiles in profiles array */
    for (i = 0; i < max_profiles; i++) {
        /* Check if it's an available element in the array */
        if (profile_array[i].profile_id = NULL) {
            /* Initialize Local Variables */
            fileName = profile_username + ".profile";
            ofstream profileFile (fileName.c_str());

            /* Give structure array members the value of the passed paramaters */
            profile_array[i].profile_username = profile_username;
            profile_array[i].profile_password = profile_password;
            profile_array[i].profile_id = i;

            /* Write structure array member data to profile */
            profileFile << profile_array[i].profile_username;
            profileFile << profile_array[i].profile_password;
            profileFile << profile_array[i].profile_id;

            /* Prompt User */
            cout << "Successfully registerd profile: " + profile_array[i].profile_username << endl;
            return;
        /* No null elements ;( */
        } else if (i == max_profiles) {
            cout << "Error: No available profile slots, please delete a profile." << endl;
            return;
        }
    }
}

void loginProfile(string profile_username, string profile_password) {
    /* Logged in? */
    if (!loggedIn) {
        /* Not logged in, check if valid profile */
        if (isValidProfile(profile_username, profile_password)) {
            /* Profile valid, continue to login */
            loggedIn = true;
            /* Prompt User */
            cout << "Logged in as: " + profile_username << endl;
            cout << userPrompt;
            return;
        /* Invalid Profile */
        } else {
            /* Prompt User */
            cout << "Error: Invalid username/password combination!" << endl;
            return;
        }
    /* Logged in */
    } else {
        cout << "Error: Profile already logged in, please logout to activate a new profile!" << endl;
        return;
    }
}

bool isValidProfile(string profile_username, string profile_password, int profile_id) {
    /* Declare Local Variables */
    int i;
    string fileName;

    /* Loop through profile array */
    for (i = 0; i < max_profiles; i++) {
        /* Check username */
        if (profile_array[i].profile_username == profile_username) {
            /* Valid username, check password */
            if (profile_array[i].profile_password == profile_password) {
                /* Valid password, valid profile credentials */
                return true;
            /* Invalid password */
            } else {
                return false;
            }
        /* Invalid username */
        } else {
            return false;
        }
    }
}

void logoutProfile(int profile_id) {
    /* Logged in? */
    if (loggedIn) {
        /* Logged in, so logout */
        loggedIn = false;
        /* Prompt User */
        cout << "Logged out: " << getProfileUsername(profile_id); << endl;
        return;
    /* Not logged in. */
    } else {
        /* Prompt User */
        cout << "Error: No profile currently logged in." << endl;
        return;
    }
}

void getProfileUsername(int profile_id) {
    /* Return profile username */
    return profile_array[profile_id].profile_username;
}

void getProfilePassword(int profile_id) {
    /* Return profile password */
    return profile_array[profile_id].profile_password;
}