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{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedLists #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
module Main (main) where
import Much.Action
import Much.Core (mainWithState, notmuchSearch)
import Much.State (State(..), ColorConfig(..))
import Much.TreeView (TreeView(TVMessagePart), treeViewId, getMessage)
import Notmuch (notmuchShowPart)
import Notmuch.Message
import Blessings.String (Blessings(..))
import Control.Monad ((>=>), unless)
import Data.Default (Default(..))
import Data.Functor (($>))
import Data.Maybe (fromMaybe)
import Scanner (Scan(ScanMouse), mouseButton, mouseY)
import System.Directory (doesFileExist)
import System.FilePath ((</>))
import System.Posix.Signals (raiseSignal, sigINT)
import System.Process (callProcess, spawnCommand)
import qualified Data.ByteString.Lazy.Char8 as LBS8 (writeFile)
import qualified Data.Text as T (unpack)
import qualified Data.Text.IO as T (writeFile)
import qualified Data.Tree.Zipper as Z (label)
{- notmuch's special tags are:
synchonised to maildir: draft flagged passed replied unread
automatic: attachment signed encrypted
cli default tags: unread inbox deleted spam
ref: https://notmuchmail.org/special-tags/
-}
main :: IO ()
main =
mainWithState def
{ keymap = myKeymap
, mousemap = myMousemap
, colorConfig = def
{ boring = pure [38,5,8]
, alt = pure [38,5,182]
, search = pure [38,5,13]
, focus = pure [38,5,4]
, quote = pure [38,5,7]
, prefix = pure [38,5,235]
, date = pure [38,5,1]
, tags = pure [38,5,14]
, boringMessage = pure [38,5,3]
, unreadMessage = pure [38,5,11]
, unreadSearch = pure [38,5,15]
, tagMap = pure
[ ("deleted", pure [38,5,088])
, ("flagged", pure [38,5,226])
, ("draft", pure [38,5,63])
, ("spam", pure [38,5,202])
]
}
, aliases =
[ ("flagged", "🔖")
, ("attachment", "📎")
, ("signed", "🔒")
]
, query = "tag:inbox"
}
showCurrentMessagePart :: State -> IO (Maybe (Message, MessagePart))
showCurrentMessagePart q =
case Z.label (cursor q) of
TVMessagePart message part -> do
let m_id = unMessageID (messageId message)
partResult <- notmuchShowPart m_id (partID part)
case partResult of
Right part' -> return $ Just (message, part')
Left _ -> return Nothing
_ -> return Nothing
currentAttachmentPath :: State -> Message -> MessagePart -> FilePath
currentAttachmentPath q message part =
attachmentDirectory q </> attachmentFileName q message part
saveAttachment :: State -> IO State
saveAttachment q =
showCurrentMessagePart q >>= \case
Nothing -> return q { flashMessage = "cursor not on attachment" }
Just (message, part) -> do
let destination = currentAttachmentPath q message part
alreadyDownloaded <- doesFileExist destination
if attachmentOverwrite q || not alreadyDownloaded
then case partContent part of
ContentText text ->
T.writeFile destination text $>
q { flashMessage = Plain destination }
ContentRaw raw _ ->
LBS8.writeFile destination raw $>
q { flashMessage = Plain destination }
_ -> return q { flashMessage = "this part cannot be saved" }
else return q { flashMessage = "not overwriting attachment" }
openAttachment :: State -> IO State
openAttachment q =
showCurrentMessagePart q >>= \case
Nothing -> return q { flashMessage = "cursor not on attachment" }
Just (message, part) -> do
let destination = currentAttachmentPath q message part
alreadyDownloaded <- doesFileExist destination
unless alreadyDownloaded $ saveAttachment q $> ()
callProcess "xdg-open" [destination] $> q
reply :: State -> IO State
reply q = spawnCommand "i3-sensible-terminal -e $EDITOR -c 'read !mail-reply'" $> q
myKeymap :: String -> State -> IO State
myKeymap "h" = closeFold
myKeymap "l" = openFold
myKeymap " " = toggleFold
myKeymap "g" = moveCursorToThread >=> moveCursorToFirstOnSameLevel
myKeymap "G" = moveCursorToThread >=> moveCursorToLastOnSameLevel
myKeymap "k" = moveCursorUp 1
myKeymap "j" = moveCursorDown 1
myKeymap "\ESC[A" = moveCursorDown 1
myKeymap "\ESC[B" = moveCursorUp 1
myKeymap "\ESC[C" = moveTreeLeft 10 -- left
myKeymap "\ESC[D" = moveTreeRight 10 -- right
myKeymap "H" = moveCursorToThread
myKeymap "r" = notmuchSearch
myKeymap "R" = reply
myKeymap "S" = saveAttachment
myKeymap "o" = openAttachment
myKeymap "q" = \q -> raiseSignal sigINT $> q
myKeymap "*" = toggleTagAtCursor "flagged"
myKeymap "a" = toggleTagAtCursor "inbox" -- mnemonic: Archive
myKeymap "s" = toggleTagAtCursor "unread" -- mnemonic: Seen
myKeymap "d" = toggleTagAtCursor "deleted"
myKeymap "!" = toggleTagAtCursor "spam"
myKeymap "N" = moveCursorUpToPrevUnread
myKeymap "n" = moveCursorDownToNextUnread
myKeymap "K" = moveTreeDown 1
myKeymap "J" = moveTreeUp 1
myKeymap "\ESC[a" = moveTreeDown 1
myKeymap "\ESC[b" = moveTreeUp 1
myKeymap "\ESC[5~" = \q -> moveTreeDown (screenHeight q `div` 2) q -- PgUp
myKeymap "\ESC[6~" = \q -> moveTreeUp (screenHeight q `div` 2) q -- PgDn
myKeymap "\ESC[Z" = moveCursorUpToPrevUnread -- S-Tab
myKeymap "\DEL" = moveToParent -- backspace
-- <F1>
myKeymap "\ESC[11~" = \q@State{..} ->
return q { flashMessage = Plain $ show $ treeViewId $ Z.label cursor }
-- <F2>
myKeymap "\ESC[12~" = \q@State{..} ->
return q { flashMessage =
Plain $
show $
fmap messageFilename $
getMessage $
Z.label cursor
}
-- TODO Stuff Vim sends after exit (also there is more...)
myKeymap "\ESC[2;2R" = \q -> return q { flashMessage = flashMessage q <> " " <> Plain "stupid" }
myKeymap "\ESC[>85;95;0c" = \q -> return q { flashMessage = flashMessage q <> " " <> Plain "stupid" }
myKeymap s = displayKey s
myMousemap :: Scan -> State -> IO State
myMousemap ScanMouse{mouseButton=1,mouseY=y} = defaultMouse1Click y
myMousemap ScanMouse{mouseButton=3,mouseY=y} = defaultMouse1Click y >=> toggleFold
myMousemap ScanMouse{mouseButton=4} = moveTreeDown 3
myMousemap ScanMouse{mouseButton=5} = moveTreeUp 3
myMousemap ScanMouse{mouseButton=0} = return
myMousemap info = displayMouse info
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