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