use std::fmt::{Display, Formatter}; use inquire::{ error::{CustomUserError, InquireResult}, required, CustomType, DateSelect, MultiSelect, Select, Text, }; fn main() -> InquireResult<()> { let _date = DateSelect::new("Date:").prompt()?; let _category = Select::new("Category:", get_categories()).prompt()?; let _payee = Text::new("Payee:") .with_validator(required!("This field is required")) .with_autocomplete(&payee_suggestor) .with_help_message("e.g. Music Store") .with_page_size(5) .prompt()?; let amount: f64 = CustomType::new("Amount:") .with_formatter(&|i: f64| format!("${i}")) .with_error_message("Please type a valid number") .with_help_message("Type the amount in US dollars using a decimal point as a separator") .prompt() .unwrap(); let _description = Text::new("Description:") .with_help_message("Optional notes") .prompt()?; let mut accounts = get_accounts(); let accounts_mut = accounts.iter_mut().collect(); let account = Select::new("Account:", accounts_mut).prompt()?; account.balance -= amount; let _tags = MultiSelect::new("Tags:", get_tags()).prompt()?; println!("Your transaction has been successfully recorded."); println!("The balance of {} is now ${:.2}", account, account.balance); Ok(()) } /// This could be retrieved from a database, for example. fn get_tags() -> Vec<&'static str> { vec![ "august-surprise", "birthday-gifts", "cat-aurora", "christmas-gifts-2020", "dog-bob", "dog-russ", "new-zealand-jan-2020", "roma-oct-2021", ] } struct Account { name: &'static str, balance: f64, } impl Account { pub fn new(name: &'static str, balance: f64) -> Self { Self { name, balance } } } impl Display for Account { fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), std::fmt::Error> { write!(f, "{}", self.name) } } /// This could be retrieved from a database, for example. fn get_accounts() -> Vec { vec![ Account::new("401k", 1.00), Account::new("Cash", 10.00), Account::new("D40 Bank", 100.00), Account::new("D40 Bank Credit Card", 1000.00), Account::new("Digital Wallet", 100.00), Account::new("Established Bank", 10.00), Account::new("Investments Account", 1.00), Account::new("Meal Voucher", 10.00), Account::new("Mortgage", 100.00), Account::new("Zeus Bank Credit Card", 354.08), ] } /// This could be retrieved from a database, for example. fn get_categories() -> Vec<&'static str> { vec![ "Rent", "Energy", "Water", "Internet", "Phone", "Groceries", "Eating Out", "Transportation", "Gifts", "Clothes", "Home Appliances", ] } /// This could be faster by using smarter ways to check for matches, when dealing with larger datasets. fn payee_suggestor(input: &str) -> Result, CustomUserError> { let input = input.to_lowercase(); Ok(get_existing_payees() .iter() .filter(|p| p.to_lowercase().contains(&input)) .take(5) .map(|p| String::from(*p)) .collect()) } /// This could be retrieved from a database, for example. fn get_existing_payees() -> &'static [&'static str] { &[ "Armstrong-Jacobs", "Barrows-Becker", "Becker PLC", "Bins, Fritsch and Hartmann", "Feil PLC", "Frami-Fisher", "Goyette Group", "Heathcote PLC", "Hilpert-Kovacek", "Keebler Inc", "Kuhn-Rippin", "McGlynn LLC", "McKenzie, Kris and Yundt", "Medhurst, Conroy and Will", "Ruecker LLC", "Steuber, Casper and Hermann", "Torphy-Boyer", "Volkman, Smith and Shanahan", "VonRueden-Rath", "Waelchi and Sons", ] }