From 970cb7089e001dd4025fc2351aa7873951f8a2c4 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Mon, 2 Sep 2019 10:21:19 -0700
Subject: [ibb] add keep instances

---
 lore/Biz/Ibb/Influencers.hs | 16 ++++++++++---
 lore/Biz/Ibb/Keep.hs        | 56 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 3 deletions(-)
 create mode 100644 lore/Biz/Ibb/Keep.hs

(limited to 'lore/Biz')

diff --git a/lore/Biz/Ibb/Influencers.hs b/lore/Biz/Ibb/Influencers.hs
index f00fe2e..a31eab4 100644
--- a/lore/Biz/Ibb/Influencers.hs
+++ b/lore/Biz/Ibb/Influencers.hs
@@ -1,19 +1,28 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+
 module Biz.Ibb.Influencers where
 
 import Data.Aeson
-import Data.Text.Lazy (Text)
+import Data.Text (Text)
+import Data.Data (Data, Typeable)
 import GHC.Generics (Generic)
 
 data Person = Person
   { _name :: Text
+  -- ^ Their full name.
   , _pic :: Text
+  -- ^ A link to their picture.
   , _twitter :: Text
+  -- ^ Their twitter handle, without the `@` prefix.
   , _website :: Text
+  -- ^ Their main website, fully formed: `https://example.com`
   , _books :: [Book]
+  -- ^ A short list of the books they recommend.
   , _blurb :: Text
-  } deriving (Generic, Show, Eq)
+  -- ^ A short "about" section, like you would see on the jacket flap of a book.
+  } deriving (Generic, Show, Eq, Typeable, Data, Ord)
 
 instance FromJSON Person
 instance ToJSON Person
@@ -22,7 +31,8 @@ data Book = Book
   { _title :: Text
   , _author :: Text
   , _amznref :: Text
-  } deriving (Generic, Show, Eq)
+  -- ^ Amazon REF number, for creating affiliate links.
+  } deriving (Generic, Show, Eq, Typeable, Data, Ord)
 
 instance FromJSON Book
 instance ToJSON Book
diff --git a/lore/Biz/Ibb/Keep.hs b/lore/Biz/Ibb/Keep.hs
new file mode 100644
index 0000000..348d0ad
--- /dev/null
+++ b/lore/Biz/Ibb/Keep.hs
@@ -0,0 +1,56 @@
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# OPTIONS_GHC -fno-warn-orphans #-}
+
+-- | Keep is a database built on Data.Acid.
+--
+-- If this proves useful, maybe we could make it a more general thing. Like
+-- `Biz.Keep`. I could wrap all the safecopy stuff in my own template haskell
+-- like `$(keep ''MyType)`.
+--
+module Biz.Ibb.Keep where
+
+import Biz.Ibb.Influencers (Person(..), Book(..))
+import Data.SafeCopy
+import Data.Data (Data, Typeable)
+import Data.Text (Text)
+import Data.IxSet (Indexable(..), ixFun, ixSet)
+
+-- * Index @Person@
+
+$(deriveSafeCopy 0 'base  ''Person)
+
+newtype PersonName =
+  PersonName Text deriving (Eq, Ord, Data, Typeable)
+
+newtype PersonBlurb =
+  PersonBlurb Text deriving (Eq, Ord, Data, Typeable)
+
+instance Indexable Person where
+  empty = ixSet
+    [ ixFun $ \p -> [ PersonName $ _name p ]
+    , ixFun $ \p -> [ _pic p ]
+    , ixFun $ \p -> [ _twitter p ]
+    , ixFun $ \p -> [ _website p ]
+    , ixFun $ \p -> [ _books p ]
+    , ixFun $ \p -> [ PersonBlurb $ _blurb p ]
+    ]
+
+-- * Index @Book@
+
+$(deriveSafeCopy 0 'base  ''Book)
+
+newtype BookTitle =
+  BookTitle Text deriving (Eq, Ord, Data, Typeable)
+
+newtype BookAuthor =
+  BookAuthor Text deriving (Eq, Ord, Data, Typeable)
+
+instance Indexable Book where
+  empty = ixSet
+    [ ixFun $ \b -> [ BookTitle $ _title b ]
+    , ixFun $ \b -> [ BookAuthor $ _author b ]
+    , ixFun $ \b -> [ _amznref b ]
+    ]
-- 
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