CmdMove: Impplemented 'move' command

src/commands/CMakeLists.txt

@@ -18,6 +18,7 @@ set (commands_SRCS CmdCancel.cpp
                    CmdHelp.cpp
                    CmdImport.cpp
                    CmdLengthen.cpp
+                   CmdMove.cpp
                    CmdReport.cpp
                    CmdStart.cpp
                    CmdStop.cpp

src/commands/CmdMove.cpp

@@ -0,0 +1,94 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// Copyright 2015 - 2016, Paul Beckingham, Federico Hernandez.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+// http://www.opensource.org/licenses/mit-license.php
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#include <cmake.h>
+#include <Datetime.h>
+#include <commands.h>
+#include <timew.h>
+#include <iostream>
+#include <stdlib.h>
+
+////////////////////////////////////////////////////////////////////////////////
+int CmdMove (
+  const CLI& cli,
+  Rules& rules,
+  Database& database)
+{
+  // Gather IDs and TAGs.
+  std::vector <int> ids;
+  std::string new_start;
+  for (auto& arg : cli._args)
+  {
+    if (arg.hasTag ("ID"))
+      ids.push_back (strtol (arg.attribute ("value").c_str (), NULL, 10));
+
+    if (arg.hasTag ("FILTER") &&
+        arg._lextype == Lexer::Type::date)
+      new_start = arg.attribute ("raw");
+  }
+
+  // TODO Support :adjust
+
+  // Load the data.
+  // Note: There is no filter.
+  Interval filter;
+  auto tracked = getTracked (database, rules, filter);
+
+  // Move start times.
+  for (auto& id : ids)
+  {
+    if (id <= static_cast <int> (tracked.size ()))
+    {
+      // Note: It's okay to subtract a one-based number from a zero-based index.
+      Interval i = tracked[tracked.size () - id];
+      Datetime start (new_start);
+
+      // Changing the start date should also change the end date by the same
+      // amount.
+      if (i.range.start < start)
+      {
+        auto delta = start - i.range.start;
+        i.range.start = start;
+        i.range.end += delta;
+      }
+      else
+      {
+        auto delta = i.range.start - start;
+        i.range.start = start;
+        i.range.end -= delta;
+      }
+
+      database.modifyInterval (tracked[tracked.size () - id], i);
+
+      // Feedback.
+      std::cout << "Moved @" << id << " to " << i.range.start.toISOLocalExtended () << '\n';
+    }
+  }
+
+  return 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////

src/commands/commands.h

@@ -45,6 +45,7 @@ int CmdHelpUsage     (                                                );
 int CmdHelp          (const CLI&                                      );
 int CmdImport        (                                                );
 int CmdLengthen      (const CLI&, Rules&, Database&                   );
+int CmdMove          (const CLI&, Rules&, Database&                   );
 int CmdReport        (const CLI&, Rules&, Database&, const Extensions&);
 int CmdShorten       (const CLI&, Rules&, Database&                   );
 int CmdShow          (            Rules&                              );

src/init.cpp

@@ -68,6 +68,7 @@ void initializeEntities (CLI& cli)
   cli.entity ("command", "help");
   cli.entity ("command", "import");
   cli.entity ("command", "lengthen");
+  cli.entity ("command", "move");
   cli.entity ("command", "report");
   cli.entity ("command", "shorten");
   cli.entity ("command", "show");
@@ -264,6 +265,7 @@ int dispatchCommand (
     else if (command == "import")      status = CmdImport        (                                );
     else if (command == "lengthen")    status = CmdLengthen      (cli, rules, database            );
     else if (command == "month")       status = CmdChartMonth    (cli, rules, database            );
+    else if (command == "move")        status = CmdMove          (cli, rules, database            );
     else if (command == "report")      status = CmdReport        (cli, rules, database, extensions);
     else if (command == "shorten")     status = CmdShorten       (cli, rules, database            );
     else if (command == "show")        status = CmdShow          (     rules                      );