//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//

#![forbid(unsafe_code)]

#![deny(
    non_camel_case_types,
    non_snake_case,
    path_statements,
    trivial_numeric_casts,
    unstable_features,
    unused_allocation,
    unused_import_braces,
    unused_imports,
    unused_must_use,
    unused_mut,
    unused_qualifications,
    while_true,
)]

#[macro_use] extern crate log;
#[macro_use] extern crate failure;
extern crate resiter;
extern crate clap;
extern crate chrono;
extern crate toml;
extern crate toml_query;
extern crate itertools;

extern crate libimagdiary;
extern crate libimagentryedit;
extern crate libimagentryview;
extern crate libimagerror;
extern crate libimaginteraction;
extern crate libimagrt;
extern crate libimagstore;
extern crate libimagtimeui;
extern crate libimagutil;

use std::io::Write;

use libimagrt::runtime::Runtime;
use libimagrt::application::ImagApplication;

use itertools::Itertools;
use clap::App;
use failure::Fallible as Result;
use failure::err_msg;
use failure::Error;

mod create;
mod delete;
mod list;
mod ui;
mod util;
mod view;

use crate::create::create;
use crate::delete::delete;
use crate::list::list;
use crate::view::view;

/// Marker enum for implementing ImagApplication on
///
/// This is used by binaries crates to execute business logic
/// or to build a CLI completion.
pub enum ImagDiary {}
impl ImagApplication for ImagDiary {
    fn run(rt: Runtime) -> Result<()> {
        match rt.cli().subcommand_name().ok_or_else(|| err_msg("No subcommand called"))? {
            "diaries" => diaries(&rt),
            "create"  => create(&rt),
            "delete"  => delete(&rt),
            "list"    => list(&rt),
            "view"    => view(&rt),
            other     => {
                debug!("Unknown command");
                if rt.handle_unknown_subcommand("imag-diary", other, rt.cli())?.success() {
                    Ok(())
                } else {
                    Err(err_msg("Failed to handle unknown subcommand"))
                }
            },
        }
    }

    fn build_cli<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
        ui::build_ui(app)
    }

    fn name() -> &'static str {
        env!("CARGO_PKG_NAME")
    }

    fn description() -> &'static str {
        "Personal Diary/Diaries"
    }

    fn version() -> &'static str {
        env!("CARGO_PKG_VERSION")
    }
}

fn diaries(rt: &Runtime) -> Result<()> {
    use libimagdiary::diary::Diary;

    let out         = rt.stdout();
    let mut outlock = out.lock();

    rt.store()
        .diary_names()?
        .collect::<Result<Vec<String>>>()?
        .into_iter()
        .unique()
        .map(|n| writeln!(outlock, "{}", n).map_err(Error::from))
        .collect()
}