feat(xanthous): Add a command to describe an item in the inventory r/2680

Add a new DescribeInventory command, bound to I, to prompt for an item
in the inventory (anywhere in the inventory, including wielded) and
display a (new) panel describing it in detail. This description includes
the description, the long description, and the item's physical
properties (volume, density, and weight).

Change-Id: Idc1a05ab16b4514728d42aa6b520f93bea807c07
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3227
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI

1 files changed, 13 insertions, 0 deletions

diff --git a/users/grfn/xanthous/src/Xanthous/Entities/Item.hs b/users/grfn/xanthous/src/Xanthous/Entities/Item.hs
index 6647c42731fa..eadd62569663 100644
--- a/users/grfn/xanthous/src/Xanthous/Entities/Item.hs
+++ b/users/grfn/xanthous/src/Xanthous/Entities/Item.hs
@@ -10,6 +10,7 @@ module Xanthous.Entities.Item
   , newWithType
   , isEdible
   , weight
+  , fullDescription
   ) where
 --------------------------------------------------------------------------------
 import           Xanthous.Prelude
@@ -61,3 +62,15 @@ isEdible = Raw.isEdible . view itemType
 -- density of its material
 weight :: Item -> Grams
 weight item = (item ^. density) |*| (item ^. volume)
+
+-- | Describe the item in full detail
+fullDescription :: Item -> Text
+fullDescription item = unlines
+  [ item ^. itemType . Raw.description
+  , ""
+  , item ^. itemType . Raw.longDescription
+  , ""
+  , "volume: " <> tshow (item ^. volume)
+  , "density: " <> tshow (item ^. density)
+  , "weight: " <> tshow (weight item)
+  ]