gallery/make-pages/GalleryPage.hs

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{-# LANGUAGE TransformListComp #-}
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module GalleryPage (make) where
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import BuilderQQ
import Date
import Info
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import qualified NsfwWarning
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import Control.Monad
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import Data.Foldable
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import Data.Function (on, (&))
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import qualified Data.HashMap.Strict as HashMap
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import Data.HashSet (HashSet)
import qualified Data.HashSet as HashSet
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import Data.List (intersperse, groupBy, sortBy, sortOn)
import Data.Maybe
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import qualified Data.Text.Lazy as Lazy
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import System.FilePath (takeDirectory, joinPath, splitPath)
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import GHC.Exts (Down (..), the)
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make :: Text -> GalleryInfo -> [(FilePath, Info)] -> Lazy.Text
make root ginfo infos = toLazyText $ make' root ginfo infos
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make' :: Text -> GalleryInfo -> [(FilePath, Info)] -> Builder
make' root (GalleryInfo {title, desc, prefix, filters, hidden}) infos = [b|@0
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<!DOCTYPE html>
<html lang=en>
<meta charset=utf-8>
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<link rel=stylesheet href=/style/shiny/gallery.css>
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<link rel=icon href=/style/niss.svg>
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<link rel=alternate href=rss.xml type=application/rss+xml>
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<meta property=og:type content=og:website>
<meta property=og:title content="$title">
<meta property=og:site_name content="$title">
<meta property=og:description content="$desc">
<meta property=og:image content="$url/$imagepath0">
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<meta property=og:url content="$url">
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<meta name=twitter:site content=@2_gecs>
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<meta name=twitter:card content=summary>
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<script src=/script/gallery.js></script>
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$0.nsfwScript
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<title>$title</title>
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$0.nsfwDialog
<div class=page>
<header>
<h1>$title</h1>
<h2 class="right corner">
<a href=rss.xml>rss</a>
</h2>
</header>
<nav id=filters>
<details id=filters-details>
<summary><h2>filters</h2></summary>
<div>
<h3>show only</h3>
<ul id=require class="buttonbar bb-choice">
$10.requireFilters
</ul>
<h3>exclude</h3>
<ul id=exclude class="buttonbar bb-choice">
$10.excludeFilters
</ul>
<a href=# id=clear>clear</a>
<a href=# id=singles>toggle single-use tags</a>
</div>
</details>
</nav>
<main>
<ul class=grid>
$6.items
</ul>
</main>
<footer>
<a href=$undir>all galleries</a>
</footer>
</div>
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|]
where
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items = map (uncurry $ makeYearItems nsfw) infosByYear
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infosByYear =
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[(the year, infopath) |
infopath@(_, info) <- infos,
not $ #unlisted info,
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then sortInfo by info,
let year = #latestYear info nsfw,
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then group by Down year using groupBy']
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sortInfo f = sortBy $ flip (compareFor nsfw `on` f)
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groupBy' f = groupBy ((==) `on` f)
undir = joinPath (replicate (length (splitPath prefix)) "..")
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allTags = infos
& concatMap (map (,1) . tagsFor nsfw . #second)
& HashMap.fromListWith (+) & HashMap.toList
& sortOn (\(tag, count) -> (Down count, tag))
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requireFilters = map (uncurry $ makeFilter "require" mempty) allTags
excludeFilters = map (uncurry $ makeFilter "exclude" hidden) allTags
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nsfw = #nsfw filters /= NoNsfw
url = [b|$root/$prefix|]
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imagepath0
| (_, (p0, i0) : _) : _ <- infosByYear = getThumb (takeDirectory p0) i0
| otherwise = "/style/card.png"
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nsfw' = NsfwWarning.Gallery <$ guard nsfw
nsfwScript = NsfwWarning.script nsfw'
nsfwDialog = NsfwWarning.dialog nsfw'
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makeFilter :: Text -> HashSet Text -> Text -> Int -> Builder
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makeFilter prefix initial tag count = [b|@0
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<li$hidden>
<input type=checkbox id="$id'" value="$tag"$checked>
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<label for="$id'" data-count=$count>$tag</label>
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|]
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where
id' = [b|$prefix$&_$tag'|]
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tag' = escId tag
checked = if HashSet.member tag initial then [b| checked|] else ""
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hidden = if count <= 1 then [b| hidden|] else ""
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makeYearItems :: Bool -- ^ nsfw
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-> Int -- ^ year
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-> [(FilePath, Info)]
-> Builder
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makeYearItems nsfw year infos = [b|@0
<li class="item year-marker" id="marker-$year">
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<span class=year-text>$year'</span>
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$0.items
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|]
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where
items = map (uncurry $ makeItem nsfw) infos
year' = show year & foldMap \c -> [b|<span class=y>$c</span>|]
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makeItem :: Bool -> FilePath -> Info -> Builder
makeItem nsfw file info@(Info {bg}) = [b|@0
<li class="item post$nsfw'" data-date="$date'" data-year=$year'
data-updated="$updated'"
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data-tags="$tags'">
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<figure>
<a href="$dir">
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<img src="$thumb" loading=lazy$bgStyle>
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</a>
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<figcaption>
<span class=date>$date'</span>
<span class=title>$title</span>
</figcaption>
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</figure>
|]
where
title = fromMaybe (#title info) $ #galleryTitle info
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dir = takeDirectory file
thumb = getThumb dir info
nsfw' = if nsfw && #anyNsfw info then [b| nsfw|] else ""
tags' = fold $ intersperse ";" $ map fromText $ tagsFor nsfw info
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date = #latestDate info nsfw
date' = formatShort date
year' = #year date
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updated' = if #updated info nsfw then [b|true|] else [b|false|]
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bgStyle = ifJust bg \col -> [b| style="background: $col"|]