From 821539f275da71d60da580f15bb886417c630209 Mon Sep 17 00:00:00 2001
From: Sean Whitton <spwhitton@spwhitton.name>
Date: Thu, 2 Apr 2015 21:51:09 +0900
Subject: finish command line reminder parsing

---
 src/Main.hs                   |  6 +++--
 src/Types/Reminder/CmdLine.hs | 23 ++++++++++++++++
 src/Utility/CmdLineRem.hs     | 62 ++++++++++++++++++++++++++++++++++---------
 3 files changed, 76 insertions(+), 15 deletions(-)

diff --git a/src/Main.hs b/src/Main.hs
index daf31dd..0fdb194 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -73,9 +73,11 @@ main = do
         then doCron
         else if length args == 1 && head args == "--refresh-emacs"
                 then refreshEmacsEventCache
-                else maybe
+                else do
+                 maybeParse <- cmdLineReminder args
+                 maybe
                      (error "srem: invalid input")
-                     appendUserReminder $ cmdLineReminder args
+                     appendUserReminder maybeParse
 
 localHMD :: IO (Hour, Minute, Day)
 localHMD = do
diff --git a/src/Types/Reminder/CmdLine.hs b/src/Types/Reminder/CmdLine.hs
index b9a311c..4a5f9c2 100644
--- a/src/Types/Reminder/CmdLine.hs
+++ b/src/Types/Reminder/CmdLine.hs
@@ -1,5 +1,28 @@
 module Types.Reminder.CmdLine where
 
+{-
+
+    srem --- Timed reminders as notifications
+
+    Copyright (C) 2015  Sean Whitton
+
+    This file is part of srem.
+
+    srem is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    srem 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with srem.  If not, see <http://www.gnu.org/licenses/>.
+
+-}
+
 import           Text.Regex.Posix ((=~))
 
 data CmdLineRemType = RelativeCLRem | AbsoluteCLRem
diff --git a/src/Utility/CmdLineRem.hs b/src/Utility/CmdLineRem.hs
index 946c14d..46d6340 100644
--- a/src/Utility/CmdLineRem.hs
+++ b/src/Utility/CmdLineRem.hs
@@ -1,24 +1,50 @@
-module Utility.CmdLineRem (cmdLineReminder) where
+{-# LANGUAGE DataKinds     #-}
+{-# LANGUAGE TypeOperators #-}
 
-import Types.Reminder.CmdLine
+{-
+
+    srem --- Timed reminders as notifications
+
+    Copyright (C) 2015  Sean Whitton
+
+    This file is part of srem.
+
+    srem is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    srem 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with srem.  If not, see <http://www.gnu.org/licenses/>.
+
+-}
+
+module Utility.CmdLineRem (cmdLineReminder) where
 
-import           Data.List              (intercalate)
 import           Control.Applicative    ((<$>))
+import           Data.List              (intercalate)
 
-import           Data.Tuple.Sequence    (sequenceT)
-import           System.Locale          (defaultTimeLocale)
 import           Data.List.Split        (oneOf, split)
+import           Data.Modular
 import           Data.Time.Calendar
 import           Data.Time.Format
 import           Data.Time.LocalTime
+import           Data.Tuple.Sequence    (sequenceT)
+import           System.Locale          (defaultTimeLocale)
 
-import           Types.Reminder
 import           Data.Maybe.Read
+import           Types.Reminder
+import           Types.Reminder.CmdLine
 
 cmdLineReminder     :: [String] -> IO (Maybe Reminder)
 cmdLineReminder []  = return Nothing
 cmdLineReminder [_] = return Nothing
-cmdLineReminder input@(exp:textParts) =
+cmdLineReminder input@(exp:_) =
     case cmdLineRemType exp of
         Just AbsoluteCLRem ->
             return $ parseAbsoluteRem input
@@ -27,14 +53,24 @@ cmdLineReminder input@(exp:textParts) =
             return $ parseRelativeRem tod input
         Nothing            ->
             return Nothing
-  where
-        text        = intercalate " " textParts
 
-parseRelativeRem :: TimeOfDay -> [String] -> Maybe Reminder
-parseRelativeRem = undefined
+parseRelativeRem                     :: TimeOfDay -> [String] -> Maybe Reminder
+parseRelativeRem tod (exp:textParts) = do
+    (h, m) <- parseRelativeTime exp
+    let nowH = todHour tod
+        nowM = todMin tod
+        h'   = nowH + h + ((nowM + m) `div` 60)
+        m'   = unMod $ (toMod nowM :: Int/60) + (toMod m :: Int/60)
+    makeReminder h' m' text
+  where
+        text                         = intercalate " " textParts
 
-parseAbsoluteRem :: [String] -> Maybe Reminder
-parseAbsoluteRem = undefined
+parseAbsoluteRem                 :: [String] -> Maybe Reminder
+parseAbsoluteRem (exp:textParts) = do
+    (h, m) <- parseAbsoluteTime exp
+    makeReminder h m text
+  where
+        text                     = intercalate " " textParts
 
 parseRelativeTime :: String -> Maybe (Hour, Minute)
 parseRelativeTime exp =
-- 
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