// Libraries
use std::{io, process::exit};

// Functions
fn get_credentials() -> (String, String) {
    // Variables
    let mut username: String = String::new();
    let mut password: String = String::new();

    // Asking for the username
    println!("Username: ");
    io::stdin().read_line(&mut username).expect("Failed to read line");
    username = String::from(username.to_lowercase().trim());

    // Asking for the password
    println!("Password: ");
    io::stdin().read_line(&mut password).expect("Failed to read line");
    password = String::from(password.trim());

    return (username, password);
}
pub fn int_auth() -> (String, String) {
    println!(" - LOGIN - ");
    return get_credentials();
}
pub fn int_reg() -> (String, String) {
    // Register form
    println!(" - REGISTER - ");
    let (username, password) = get_credentials();

    // Confirming password
    let mut cpassword: String = String::new();
    println!("Confirm Password: ");
    io::stdin().read_line(&mut cpassword).expect("Failed to read line");
    cpassword = String::from(cpassword.trim());

    // Valid password?
    if password != cpassword {
        println!("Passwords do not match!");
        exit(0);
    } else {
        return (username, password);
    }
}

pub fn int_welcome(username: &String) -> String {
    // Variables
    let mut user_input: String = String::new();

    // Welcome message
    println!("\n - RUSTYPASS - ");
    println!("Welcome, {}!", username);
    println!("Please select one of the following options: ");
    println!("\n1) View a Password");
    println!("2) Create a Password");
    println!("3) Generate a Password");
    println!("4) Quit");
    io::stdin().read_line(&mut user_input).expect("Failed to read line");

    // Returning what the user said
    return String::from(user_input.trim());
}
pub fn int_gen() -> (u32, bool, bool) {
    // Variables
    let mut raw_pass_len: String = String::new();
    let mut raw_pass_num: String = String::new();
    let mut raw_pass_spe: String = String::new();

    // Asking the user the big questions
    println!(" - Password Generator - ");
    println!("Before we give you a password, just a few questions!");
    println!("How long should your password be?");
    println!("Select size[number]: ");
    io::stdin().read_line(&mut raw_pass_len).expect("Failed to read line.");
    println!("Would you like numbers to be included in your password?");
    println!("Select option[y/n]: ");
    io::stdin().read_line(&mut raw_pass_num).expect("Failed to read line.");
    println!("Would you like special characters to be included in your password?");
    println!("Select option[y/n]: ");
    io::stdin().read_line(&mut raw_pass_spe).expect("Failed to read line.");

    // Converting the stuff
    let pass_len: u32 = raw_pass_len.trim().parse().unwrap();
    let str_pass_num: String = String::from(raw_pass_num.to_lowercase().trim());
    let str_pass_spe: String = String::from(raw_pass_spe.to_lowercase().trim());

    // Y/N to bool:
    let pass_num: bool = if str_pass_num == "y" {
        true
    } else{
        false
    };
    let pass_spe: bool = if str_pass_spe == "y" {
        true
    } else {
        false
    };

    // Returning all of the values
    return (pass_len, pass_num, pass_spe);
}