From 10686461340144a0d0482bbe2a6cf1daf1f52d18 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sun, 9 Jul 2017 20:20:26 +0200
Subject: [PATCH] Implement stop subcommand

---
 imag-timetrack/src/stop.rs | 85 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 84 insertions(+), 1 deletion(-)

diff --git a/imag-timetrack/src/stop.rs b/imag-timetrack/src/stop.rs
index 61ca02a8..b9e9cd49 100644
--- a/imag-timetrack/src/stop.rs
+++ b/imag-timetrack/src/stop.rs
@@ -17,7 +17,90 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //
 
+use std::str::FromStr;
+
+use libimagerror::trace::trace_error;
+use libimagerror::iter::TraceIterator;
+use libimagrt::runtime::Runtime;
+use libimagrt::setup::generate_runtime_setup;
+
+use libimagentrytimetrack::timetracking::TimeTracking;
+use libimagentrytimetrack::tag::TimeTrackingTag;
+use libimagentrytimetrack::timetrackingstore::*;
+use libimagentrytimetrack::iter::get::GetTimeTrackIter;
+
 pub fn stop(rt: &Runtime) -> i32 {
-    unimplemented!()
+    let (_, cmd) = rt.cli().subcommand();
+    let cmd = cmd.unwrap(); // checked in main()
+
+    let stop_time = match cmd.value_of("stop-time").map(::chrono::naive::NaiveDateTime::from_str) {
+        None          => ::chrono::offset::Local::now().naive_local(),
+        Some(Ok(ndt)) => ndt,
+        Some(Err(e))  => {
+            trace_error(&e);
+            error!("Cannot continue, not having stop time");
+            return 1
+        },
+    };
+
+    // TODO: We do not yet support stopping all tags by simply calling the "stop" subcommand!
+
+    let tags : Vec<TimeTrackingTag> = cmd.values_of("tags")
+        .unwrap() // enforced by clap
+        .map(String::from)
+        .map(TimeTrackingTag::from)
+        .collect();
+
+    let iter : GetTimeTrackIter = match rt.store().get_timetrackings() {
+        Ok(i) => i,
+        Err(e) => {
+            error!("Getting timetrackings failed");
+            trace_error(&e);
+            return 1
+        }
+
+    };
+
+    // Filter all timetrackings for the ones that are not yet ended.
+    iter.trace_unwrap()
+        .filter_map(|elem| {
+            // check whether end-time is set
+            let has_end_time = match elem.get_end_datetime() {
+                Ok(x)  => x.is_some(),
+                Err(e) => {
+                    warn!("Error checking {} whether End-time is set", elem.get_location());
+                    trace_error(&e);
+                    false
+                }
+            };
+
+            // Filter the not-yet-ended timetrackings for the ones that should be ended via
+            // the tag specification
+            let stopping_tag_is_present : bool = elem
+                .get_timetrack_tag()
+                .map(|t| tags.contains(&t))
+                .unwrap_or(false);
+
+            if (!has_end_time) && stopping_tag_is_present {
+                Some(elem)
+            } else {
+                None
+            }
+        })
+
+    // for each of these timetrackings, end them
+    // for each result, print the backtrace (if any)
+    .fold(0, |acc, mut elem| match elem.set_end_datetime(stop_time.clone()) {
+        Err(e) => { // if there was an error
+            trace_error(&e); // trace
+            1 // set exit code to 1
+        },
+        Ok(_) => {
+            debug!("Setting end time worked: {:?}", elem);
+
+            // Keep the exit code
+            acc
+        }
+    })
 }