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-- ldgallery - A static generator which turns a collection of tagged
-- pictures into a searchable web gallery.
--
-- Copyright (C) 2019-2020 Pacien TRAN-GIRARD
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as
-- published by the Free Software Foundation, either version 3 of the
-- License, or (at your option) any later version.
--
-- This program 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 Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
module Config
( GalleryConfig(..), readConfig
, ViewerConfig(..), viewerConfig
, TagsFromDirectoriesConfig(..)
, Resolution(..)
) where
import GHC.Generics (Generic)
import Data.Aeson (ToJSON, FromJSON, withObject, (.:?), (.!=))
import qualified Data.Aeson as JSON
import Files (FileName)
import Input (decodeYamlFile)
data Resolution = Resolution
{ width :: Int
, height :: Int
} deriving (Generic, Show, ToJSON, FromJSON)
data TagsFromDirectoriesConfig = TagsFromDirectoriesConfig
{ fromParents :: Int
, prefix :: String
} deriving (Generic, Show)
instance FromJSON TagsFromDirectoriesConfig where
parseJSON = withObject "TagsFromDirectoriesConfig" $ \v -> TagsFromDirectoriesConfig
<$> v .:? "fromParents" .!= 0
<*> v .:? "prefix" .!= ""
data GalleryConfig = GalleryConfig
{ galleryTitle :: String
, includedDirectories :: [String]
, excludedDirectories :: [String]
, includedFiles :: [String]
, excludedFiles :: [String]
, includedTags :: [String]
, excludedTags :: [String]
, tagCategories :: [String]
, tagsFromDirectories :: TagsFromDirectoriesConfig
, thumbnailMaxResolution :: Resolution
, pictureMaxResolution :: Maybe Resolution
} deriving (Generic, Show)
instance FromJSON GalleryConfig where
parseJSON = withObject "GalleryConfig" $ \v -> GalleryConfig
<$> v .:? "galleryTitle" .!= "ldgallery"
<*> v .:? "includedDirectories" .!= ["*"]
<*> v .:? "excludedDirectories" .!= []
<*> v .:? "includedFiles" .!= ["*"]
<*> v .:? "excludedFiles" .!= []
<*> v .:? "includedTags" .!= ["*"]
<*> v .:? "excludedTags" .!= []
<*> v .:? "tagCategories" .!= []
<*> v .:? "tagsFromDirectories" .!= TagsFromDirectoriesConfig 0 ""
<*> v .:? "thumbnailMaxResolution" .!= Resolution 400 300
<*> v .:? "pictureMaxResolution"
readConfig :: FileName -> IO GalleryConfig
readConfig = decodeYamlFile
data ViewerConfig = ViewerConfig
{ galleryTitle :: String
, tagCategories :: [String]
} deriving (Generic, ToJSON, FromJSON, Show)
viewerConfig :: GalleryConfig -> ViewerConfig
viewerConfig GalleryConfig{galleryTitle, tagCategories} = ViewerConfig galleryTitle tagCategories
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