//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2018 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
//

use std::path::Path;
use std::path::PathBuf;
use std::result::Result as RResult;

use vobject::parse_component;

use libimagstore::store::Store;
use libimagstore::store::FileLockEntry;
use libimagstore::storeid::StoreIdIterator;
use libimagentryutil::isa::Is;

use contact::IsContact;
use error::ContactError as CE;
use error::ContactErrorKind as CEK;
use error::Result;
use util;

pub trait ContactStore<'a> {

    // creating

    fn create_from_path(&'a self, p: &PathBuf) -> Result<FileLockEntry<'a>>;

    /// Create contact ref from buffer
    fn create_from_buf(&'a self, buf: &String) -> Result<FileLockEntry<'a>>;

    // getting

    fn all_contacts(&'a self) -> Result<StoreIdIterator>;
}

/// The extension for the Store to work with contacts
impl<'a> ContactStore<'a> for Store {

    fn create_from_path(&'a self, p: &PathBuf) -> Result<FileLockEntry<'a>> {
        util::read_to_string(p).and_then(|buf| self.create_from_buf(&buf))
    }

    /// Create contact ref from buffer
    fn create_from_buf(&'a self, buf: &String) -> Result<FileLockEntry<'a>> {
        let component = parse_component(&buf)?;
        debug!("Parsed: {:?}", component);

        unimplemented!()
    }

    fn all_contacts(&'a self) -> Result<StoreIdIterator> {
        let iter = self
            .entries()?
            .without_store()
            .filter(|id| id.is_in_collection(&["contact"]));

        Ok(StoreIdIterator::new(Box::new(iter)))
    }

}