Financial app. Store receipts for things you pay. In Rust.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

92 lines
3.2 KiB

/*
Fernico - Finance Storage
Copyright (C) 2021 Julio Biason
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use clap::crate_authors;
use clap::crate_description;
use clap::crate_name;
use clap::crate_version;
use clap::App;
use clap::Arg;
use clap::ArgMatches;
use clap::SubCommand;
use rust_decimal::prelude::*;
use crate::commands::add_expense::AddExpense;
use crate::commands::interface::Command;
/// Errors in the CLI parsing
pub enum CliErrors {
/// Request to set a value without a value
ValueIsRequired,
/// There is no such command
NoSuchCommand,
}
pub(crate) fn cli() -> Result<Box<dyn Command>, CliErrors> {
let interface = App::new(crate_name!())
.version(crate_version!())
.author(crate_authors!())
.about(crate_description!())
.subcommand(
SubCommand::with_name("expense")
.about("Expense management")
.subcommand(
SubCommand::with_name("add")
.about("Add a new expense")
.arg(Arg::with_name("date")
.short("d")
.long("date")
.help("Date for the expense")
.long_help("Required only if you want to register an expense not in the current date"))
.arg(Arg::with_name("value").help("Amount spent on expense"))
.arg(Arg::with_name("tags").help("Tags for the expense").multiple(true))
),
);
let matches = interface.get_matches();
match matches.subcommand() {
("expense", Some(expense_arguments)) => {
parse_expenses(expense_arguments)
}
_ => Err(CliErrors::NoSuchCommand),
}
}
fn parse_expenses(args: &ArgMatches) -> Result<Box<dyn Command>, CliErrors> {
match args.subcommand() {
("add", Some(params)) => {
let value =
params.value_of("value").ok_or(CliErrors::ValueIsRequired)?;
let tags = params.values_of("tags").map_or_else(
|| vec![], /* else */
|values| values.map(|val| val.into()).collect(), /* map */
);
let date = params.value_of("date").unwrap_or("Today");
log::debug!(
"Add expense on {:?}, of {:?}, with tags {:?}",
date,
value,
tags
);
Ok(Box::new(AddExpense::new(
Decimal::from_str(value).unwrap(),
tags,
)))
}
_ => Err(CliErrors::NoSuchCommand),
}
}