Add basic listing functionality

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 60 insertions, 0 deletions

diff --git a/bin/domain/imag-calendar/src/util.rs b/bin/domain/imag-calendar/src/util.rs
new file mode 100644
index 00000000..6c142337
--- /dev/null
+++ b/bin/domain/imag-calendar/src/util.rs
@@ -0,0 +1,60 @@
+//
+// 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
+//
+
+use vobject::icalendar::ICalendar;
+use failure::Fallible as Result;
+use failure::Error;
+
+use libimagstore::store::FileLockEntry;
+use libimagentryref::reference::fassade::RefFassade;
+use libimagentryref::reference::Ref;
+use libimagentryref::reference::Config;
+use libimagentryref::hasher::default::DefaultHasher;
+
+pub struct ParsedEventFLE<'a> {
+    inner: FileLockEntry<'a>,
+    data: ICalendar,
+}
+
+impl<'a> ParsedEventFLE<'a> {
+
+    /// Because libimagcalendar only links to the actual calendar data, we need to read the data and
+    /// parse it.
+    /// With this function, a FileLockEntry can be parsed to a ParsedEventFileLockEntry
+    /// (ParsedEventFLE).
+    pub fn parse(fle: FileLockEntry<'a>, refconfig: &Config) -> Result<Self> {
+        fle.as_ref_with_hasher::<DefaultHasher>()
+            .get_path(refconfig)
+            .and_then(|p| ::std::fs::read_to_string(p).map_err(Error::from))
+            .and_then(|s| ICalendar::build(&s).map_err(Error::from))
+            .map(|cal| ParsedEventFLE {
+                inner: fle,
+                data: cal,
+            })
+    }
+
+    pub fn get_entry(&self) -> &FileLockEntry<'a> {
+        &self.inner
+    }
+
+    pub fn get_data(&self) -> &ICalendar {
+        &self.data
+    }
+}
+