summaryrefslogtreecommitdiffstats
path: root/src/Much/RenderTreeView.hs
blob: d5999b231a4c2fec99d9fe33819315954908c031 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}

module Much.RenderTreeView (renderTreeView) where

import qualified Notmuch.Message as Notmuch
import qualified Notmuch.SearchResult as Notmuch
import qualified Data.CaseInsensitive as CI
import qualified Data.List as L
import qualified Data.Map as M
import qualified Data.Text as T
import qualified Data.Tree.Zipper as Z
import qualified Much.TreeZipperUtils as Z
import Blessings
import Data.Char
import Data.Maybe
import Data.Time
import Data.Time.Format.Human
import Data.Tree
import Much.State
import Much.TagUtils (Tag)
import Much.TreeView


-- TODO make configurable
humanTimeLocale :: HumanTimeLocale
humanTimeLocale = defaultHumanTimeLocale
    { justNow       = "now"
    , secondsAgo    = \f -> (++ "s" ++ dir f)
    , oneMinuteAgo  = \f -> "1m" ++ dir f
    , minutesAgo    = \f -> (++ "m" ++ dir f)
    , oneHourAgo    = \f -> "1h" ++ dir f
    , aboutHoursAgo = \f -> (++ "h" ++ dir f)
    , at            = \_ -> ("" ++)
    , daysAgo       = \f -> (++ "d" ++ dir f)
    , weekAgo       = \f -> (++ "w" ++ dir f)
    , weeksAgo      = \f -> (++ "w" ++ dir f)
    , onYear        = ("" ++)
    , dayOfWeekFmt  = "%a %H:%M"
    , thisYearFmt   = "%b %e"
    , prevYearFmt   = "%b %e, %Y"
    }
  where dir True  = " from now"
        dir False = " ago"


renderTreeView
    :: State
    -> Z.TreePos Z.Full TreeView
    -> [Blessings String]
renderTreeView q@State{..} =
    renderNode
  where
    isFocus = (Z.label cursor==) . Z.label

    renderNode loc =
        renderRootLabel loc :
        maybeRenderSubForest (Z.firstChild loc)

    renderRootLabel loc =
        renderPrefix q loc <>
        renderTreeView1 q (isFocus loc) (Z.label loc)

    renderSubForest loc =
        renderNode loc ++
        maybeRenderSubForest (Z.next loc)

    maybeRenderSubForest =
        maybe mempty renderSubForest


renderPrefix :: State -> Z.TreePos Z.Full TreeView -> Blessings String
renderPrefix state =
    mconcat . reverse . zipWith (curry prefix) [(1 :: Int)..] . Z.path
  where
    prefix (i, (_lhs, x, rhs)) = case x of
        TVSearch _ -> ""
        TVSearchResult _ -> spacePrefix state
        TVMessage _ ->
            case i of
                1 ->
                    if null rhs
                        then endPrefix state
                        else teePrefix state
                _ ->
                    if null rhs
                        then spacePrefix state
                        else pipePrefix state
        _ ->
            if not $ any (isTVMessage . rootLabel) rhs
                then spacePrefix state
                else pipePrefix state


spacePrefix
    , teePrefix
    , pipePrefix
    , endPrefix
    :: State -> Blessings String
spacePrefix q = prefix (colorConfig q) "  "
teePrefix q = prefix (colorConfig q) "├╴"
pipePrefix q = prefix (colorConfig q) "│ "
endPrefix q = prefix (colorConfig q) "└╴"


-- TODO locale-style: headerKey = \s -> SGR [..] (s <> ": ")


renderTreeView1 :: State -> Bool -> TreeView -> Blessings String
renderTreeView1 q@State{..} hasFocus x = case x of

    TVSearch s ->
        let c = if hasFocus then focus colorConfig else search colorConfig
        in c $ Plain s

    TVSearchResult sr ->
        let c
                | hasFocus = focus colorConfig
                | isUnread = unreadSearch colorConfig
                | otherwise = boring colorConfig
            c_authors
                | hasFocus = focus colorConfig
                | isUnread = alt colorConfig
                | otherwise = boring colorConfig

            isUnread = "unread" `elem` Notmuch.searchTags sr

            authors = Plain $ T.unpack $ Notmuch.searchAuthors sr
            date = Much.State.date colorConfig $ renderDate now x
            subject = Plain $ T.unpack $ Notmuch.searchSubject sr
            tags = Much.State.tags colorConfig $ renderTags q (Notmuch.searchTags sr)
            title = if subject /= "" then subject else c_authors authors
        in
          c $ title <> " " <> date <> " " <> tags

    TVMessage m ->
        let fromSGR
                | hasFocus = focus colorConfig
                | "unread" `elem` Notmuch.messageTags m = unreadMessage colorConfig
                | otherwise = boringMessage colorConfig
            from = fromSGR $ renderFrom (M.lookup "from" $ Notmuch.messageHeaders m)
            date = Much.State.date colorConfig $ renderDate now x
            tags = Much.State.tags colorConfig $ renderTags q (Notmuch.messageTags m) -- TODO filter common tags
        in from <> " " <> date <> " " <> tags

    TVMessageHeaderField m fieldName ->
        let c = if hasFocus then focus colorConfig else boring colorConfig
            k = Plain $ T.unpack $ CI.original fieldName
            v = maybe "nothing"
                      (Plain . T.unpack)
                      (M.lookup fieldName $ Notmuch.messageHeaders m)
        in c $ k <> ": " <> v

    TVMessagePart _ p ->
        let c = if hasFocus then focus colorConfig else boring colorConfig
            i = Plain $ show $ Notmuch.partID p
            t = Plain $ T.unpack $ CI.original $ Notmuch.partContentType p
            filename = maybe "" (Plain . (" "<>) . show) $ Notmuch.partContentFilename p
            charset = maybe "" (Plain . (" "<>) . show) $ Notmuch.partContentCharset p
            size = Plain $ show $ Notmuch.contentSize (Notmuch.partContent p)
        in c $ "part#" <> i <> " " <> t <> filename <> charset <> " " <> size

    TVMessageQuoteLine _ _ _ s ->
        if hasFocus
            then focus colorConfig $ Plain s
            else quote colorConfig $ Plain s

    TVMessageLine _ _ _ s ->
        if hasFocus
            then focus colorConfig $ Plain s
            else Plain s



renderDate :: UTCTime -> TreeView -> Blessings String
renderDate now = \case
    TVSearchResult sr -> f humanTimeLocale (Notmuch.searchTime sr)
    TVMessage m -> f humanTimeLocale (Notmuch.messageTime m)
    _ -> SGR [35,1] "timeless"
  where
    f timeLocale time =
        Plain $ humanReadableTimeI18N' timeLocale now time


renderFrom :: Maybe T.Text -> Blessings String
renderFrom = \case
    Just fromLine -> Plain $ dropAddress $ T.unpack fromLine
    Nothing -> SGR [35,1] "Anonymous"


renderTags :: State -> [Tag] -> Blessings String
renderTags state =
    -- TODO sort somewhere else
    mconcat . L.intersperse " " . map (renderTag state) . L.sort


renderTag :: State -> Tag -> Blessings String
renderTag state tag = case M.lookup tag (tagMap (colorConfig state)) of
    Just visual -> visual plain
    Nothing -> plain
  where
    plain = Plain $ T.unpack $ fromMaybe tag $ M.lookup tag (tagSymbols state)


dropAddress :: String -> String
dropAddress xs =
    case L.elemIndices '<' xs of
        [] -> xs
        is -> L.dropWhileEnd isSpace $ take (last is) xs