-- | The generic guild channel type
module Calamity.Types.Model.Channel.Guild (
  GuildChannel (..),
  module Calamity.Types.Model.Channel.Guild.Category,
  module Calamity.Types.Model.Channel.Guild.Text,
  module Calamity.Types.Model.Channel.Guild.Voice,
) where

import Calamity.Internal.SnowflakeMap (SnowflakeMap)
import {-# SOURCE #-} Calamity.Types.Model.Channel
import Calamity.Types.Model.Channel.ChannelType
import Calamity.Types.Model.Channel.Guild.Category
import Calamity.Types.Model.Channel.Guild.Text
import Calamity.Types.Model.Channel.Guild.Voice
import {-# SOURCE #-} Calamity.Types.Model.Guild.Guild
import Calamity.Types.Model.Guild.Overwrite
import Calamity.Types.Snowflake

import Control.Lens

import Data.Aeson
import Data.Generics.Product.Fields
import Data.Text.Lazy (Text)

import GHC.Generics

import Control.DeepSeq (NFData)
import TextShow
import qualified TextShow.Generic as TSG

data GuildChannel
  = GuildTextChannel TextChannel
  | GuildVoiceChannel VoiceChannel
  | GuildCategory Category
  deriving (Show, Eq, Generic, NFData)
  deriving (TextShow) via TSG.FromGeneric GuildChannel

instance FromJSON GuildChannel where
  parseJSON = withObject "GuildChannel" $ \v -> do
    type_ <- v .: "type"

    case type_ of
      GuildTextType -> GuildTextChannel <$> parseJSON (Object v)
      GuildVoiceType -> GuildVoiceChannel <$> parseJSON (Object v)
      GuildCategoryType -> GuildCategory <$> parseJSON (Object v)
      typ -> fail $ "Not a valid guild channel: " <> show typ

instance HasID GuildChannel GuildChannel where
  getID (GuildTextChannel a) = coerceSnowflake $ a ^. field' @"id"
  getID (GuildVoiceChannel a) = coerceSnowflake $ a ^. field' @"id"
  getID (GuildCategory a) = coerceSnowflake $ a ^. field' @"id"

instance HasID Channel GuildChannel where
  getID = coerceSnowflake . getID @GuildChannel

instance HasID Guild GuildChannel where
  getID (GuildTextChannel a) = coerceSnowflake $ a ^. field' @"guildID"
  getID (GuildVoiceChannel a) = coerceSnowflake $ a ^. field' @"guildID"
  getID (GuildCategory a) = coerceSnowflake $ a ^. field' @"guildID"

instance {-# OVERLAPS #-} HasField' "name" GuildChannel Text where
  field' = lens get set
   where
    get (GuildTextChannel (TextChannel{name})) = name
    get (GuildVoiceChannel (VoiceChannel{name})) = name
    get (GuildCategory (Category{name})) = name

    set (GuildTextChannel t) v = GuildTextChannel (t{name = v})
    set (GuildVoiceChannel t) v = GuildVoiceChannel (t{name = v})
    set (GuildCategory t) v = GuildCategory (t{name = v})

instance {-# OVERLAPS #-} HasField' "permissionOverwrites" GuildChannel (SnowflakeMap Overwrite) where
  field' = lens get set
   where
    get (GuildTextChannel (TextChannel{permissionOverwrites})) = permissionOverwrites
    get (GuildVoiceChannel (VoiceChannel{permissionOverwrites})) = permissionOverwrites
    get (GuildCategory (Category{permissionOverwrites})) = permissionOverwrites

    set (GuildTextChannel t) v = GuildTextChannel (t{permissionOverwrites = v})
    set (GuildVoiceChannel t) v = GuildVoiceChannel (t{permissionOverwrites = v})
    set (GuildCategory t) v = GuildCategory (t{permissionOverwrites = v})

instance {-# OVERLAPS #-} HasField' "position" GuildChannel Int where
  field' = lens get set
   where
    get (GuildTextChannel (TextChannel{position})) = position
    get (GuildVoiceChannel (VoiceChannel{position})) = position
    get (GuildCategory (Category{position})) = position

    set (GuildTextChannel t) v = GuildTextChannel (t{position = v})
    set (GuildVoiceChannel t) v = GuildVoiceChannel (t{position = v})
    set (GuildCategory t) v = GuildCategory (t{position = v})