Implement CLI

bin/core/imag-gps/src/main.rs

@@ -17,10 +17,167 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //
 
+#![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,
+)]
+
 extern crate clap;
+#[macro_use]
+extern crate log;
+#[macro_use]
+extern crate version;
+
+extern crate libimagentrygps;
+extern crate libimagrt;
+extern crate libimagutil;
+extern crate libimagerror;
+extern crate libimagstore;
+
+use std::process::exit;
+use std::path::PathBuf;
+use std::str::FromStr;
+
+use libimagentrygps::types::*;
+use libimagentrygps::entry::*;
+use libimagrt::setup::generate_runtime_setup;
+use libimagrt::runtime::Runtime;
+use libimagutil::warn_exit::warn_exit;
+use libimagerror::trace::MapErrTrace;
+use libimagstore::storeid::IntoStoreId;
 
 mod ui;
 
 fn main() {
-    println!("Hello, world!");
+    let rt = generate_runtime_setup("imag-gps",
+                                    &version!()[..],
+                                    "Add GPS coordinates to entries",
+                                    ui::build_ui);
+
+    rt.cli()
+        .subcommand_name()
+        .map(|name| {
+            match name {
+                "add"    => add(&rt),
+                "remove" => remove(&rt),
+                "get"    => get(&rt),
+                _        => warn_exit("No commandline call", 1)
+            }
+        });
 }
+
+fn add(rt: &Runtime) {
+    let scmd = rt.cli().subcommand_matches("add").unwrap(); // safed by main()
+
+    let entry_name  = scmd.value_of("entry").unwrap(); // safed by clap
+    let sid         = PathBuf::from(entry_name)
+        .into_storeid()
+        .map_err_trace_exit(1)
+        .unwrap(); // safed by above call
+
+    let c = {
+        let parse = |value: &str| -> Vec<i8> {
+            value.split(".")
+                .map(FromStr::from_str)
+                .map(|elem| elem.map_err_trace_exit(1).unwrap())
+                .collect::<Vec<i8>>()
+        };
+
+        let long = parse(scmd.value_of("longitude").unwrap()); // unwrap safed by clap
+        let lati = parse(scmd.value_of("latitude").unwrap()); // unwrap safed by clap
+
+        let long = GPSValue::new(long[0], long[1], long[2]);
+        let lati = GPSValue::new(lati[0], lati[1], lati[2]);
+
+        Coordinates::new(long, lati)
+    };
+
+    rt.store()
+        .get(sid)
+        .map_err_trace_exit(1)
+        .unwrap() // safed by above call
+        .map(|mut entry| {
+            let _ = entry.set_coordinates(c)
+                .map_err_trace_exit(1);
+        })
+        .unwrap_or_else(|| {
+            error!("No such entry: {}", entry_name);
+            exit(1)
+        });
+}
+
+fn remove(rt: &Runtime) {
+    let scmd = rt.cli().subcommand_matches("remove").unwrap(); // safed by main()
+
+    let entry_name  = scmd.value_of("entry").unwrap(); // safed by clap
+    let sid         = PathBuf::from(entry_name)
+        .into_storeid()
+        .map_err_trace_exit(1)
+        .unwrap(); // safed by above call
+
+    let removed_value = rt
+        .store()
+        .get(sid)
+        .map_err_trace_exit(1)
+        .unwrap() // safed by above call
+        .unwrap_or_else(|| { // if we have Ok(None)
+            error!("No such entry: {}", entry_name);
+            exit(1)
+        })
+        .remove_coordinates()
+        .map_err_trace_exit(1) // The delete action failed
+        .unwrap() // safed by above call
+        .unwrap_or_else(|| { // if we have Ok(None)
+            error!("Entry had no coordinates: {}", entry_name);
+            exit(1)
+        })
+        .map_err_trace_exit(1) // The parsing of the deleted values failed
+        .unwrap(); // safed by above call
+
+    if scmd.is_present("print-removed") {
+        println!("{}", removed_value);
+    }
+
+    info!("Ok");
+}
+
+fn get(rt: &Runtime) {
+    let scmd = rt.cli().subcommand_matches("get").unwrap(); // safed by main()
+
+    let entry_name  = scmd.value_of("entry").unwrap(); // safed by clap
+    let sid         = PathBuf::from(entry_name)
+        .into_storeid()
+        .map_err_trace_exit(1)
+        .unwrap(); // safed by above call
+
+    let value = rt
+        .store()
+        .get(sid)
+        .map_err_trace_exit(1)
+        .unwrap() // safed by above call
+        .unwrap_or_else(|| { // if we have Ok(None)
+            error!("No such entry: {}", entry_name);
+            exit(1)
+        })
+        .get_coordinates()
+        .map_err_trace_exit(1) // The get action failed
+        .unwrap() // safed by above call
+        .unwrap_or_else(|| { // if we have Ok(None)
+            error!("Entry has no coordinates: {}", entry_name);
+            exit(1)
+        });
+
+    println!("{}", value);
+    info!("Ok");
+}
+