-- | Discord Guilds
module Calamity.Types.Model.Guild.Guild (
  Guild (..),
  Partial (PartialGuild),
  UpdatedGuild (..),
) where

import Calamity.Internal.AesonThings
import Calamity.Internal.SnowflakeMap (SnowflakeMap)
import qualified Calamity.Internal.SnowflakeMap as SM
import Calamity.Internal.Utils ()
import Calamity.Types.Model.Channel
import Calamity.Types.Model.Guild.Emoji
import {-# SOURCE #-} Calamity.Types.Model.Guild.Member
import Calamity.Types.Model.Guild.Role
import Calamity.Types.Model.Presence.Presence
import Calamity.Types.Model.User
import Calamity.Types.Model.Voice.VoiceState
import Calamity.Types.Snowflake
import Control.DeepSeq
import Control.Lens ((^.))
import Data.Aeson
import Data.Generics.Product.Fields
import Data.HashMap.Strict (HashMap)
import qualified Data.HashMap.Strict as LH
import Data.Text.Lazy (Text)
import Data.Time
import Data.Word
import GHC.Generics
import TextShow
import qualified TextShow.Generic as TSG

data Guild = Guild
  { id :: Snowflake Guild
  , name :: Text
  , icon :: Maybe Text
  , splash :: Maybe Text
  , owner :: Maybe Bool
  , ownerID :: Snowflake User
  , permissions :: Word64
  , region :: Text
  , afkChannelID :: Maybe (Snowflake GuildChannel)
  , afkTimeout :: Int
  , embedEnabled :: Bool
  , embedChannelID :: Maybe (Snowflake GuildChannel)
  , verificationLevel :: Int
  , defaultMessageNotifications :: Int
  , explicitContentFilter :: Int
  , roles :: SnowflakeMap Role
  , emojis :: SnowflakeMap Emoji
  , features :: [Text]
  , mfaLevel :: Int
  , applicationID :: Maybe (Snowflake User)
  , widgetEnabled :: Bool
  , widgetChannelID :: Maybe (Snowflake GuildChannel)
  , systemChannelID :: Maybe (Snowflake GuildChannel)
  , -- NOTE: Below are only sent on GuildCreate
    joinedAt :: Maybe UTCTime
  , large :: Bool
  , unavailable :: Bool
  , memberCount :: Int
  , voiceStates :: [VoiceState]
  , members :: SnowflakeMap Member
  , channels :: SnowflakeMap GuildChannel
  , presences :: HashMap (Snowflake User) Presence
  }
  deriving (Eq, Show, Generic, NFData)
  deriving (TextShow) via TSG.FromGeneric Guild
  deriving (HasID Guild) via HasIDField "id" Guild

instance FromJSON Guild where
  parseJSON = withObject "Guild" $ \v -> do
    id <- v .: "id"

    members' <- do
      members' <- v .: "members"
      SM.fromList <$> traverse (\m -> parseJSON $ Object (m <> "guild_id" .= id)) members'

    channels' <- do
      channels' <- v .: "channels"
      SM.fromList <$> traverse (\m -> parseJSON $ Object (m <> "guild_id" .= id)) channels'

    presences' <- do
      presences' <- v .: "presences"
      LH.fromList
        <$> traverse
          ( \m -> do
              p <- parseJSON $ Object (m <> "guild_id" .= id)
              pure (getID $ p ^. field @"user", p)
          )
          presences'

    Guild id
      <$> v .: "name"
      <*> v .: "icon"
      <*> v .:? "splash"
      <*> v .:? "owner"
      <*> v .: "owner_id"
      <*> v .:? "permissions" .!= 0
      <*> v .: "region"
      <*> v .:? "afk_channel_id"
      <*> v .: "afk_timeout"
      <*> v .:? "embed_enabled" .!= False
      <*> v .:? "embed_channel_id"
      <*> v .: "verification_level"
      <*> v .: "default_message_notifications"
      <*> v .: "explicit_content_filter"
      <*> v .: "roles"
      <*> v .: "emojis"
      <*> v .: "features"
      <*> v .: "mfa_level"
      <*> v .:? "application_id"
      <*> v .:? "widget_enabled" .!= False
      <*> v .:? "widget_channel_id"
      <*> v .:? "system_channel_id"
      <*> v .:? "joined_at"
      <*> v .: "large"
      <*> v .: "unavailable"
      <*> v .: "member_count"
      <*> v .: "voice_states"
      <*> pure members'
      <*> pure channels'
      <*> pure presences'

data instance Partial Guild = PartialGuild
  { id :: Snowflake Guild
  , name :: Text
  }
  deriving (Eq, Show, Generic)
  deriving (TextShow) via TSG.FromGeneric (Partial Guild)
  deriving (ToJSON, FromJSON) via CalamityJSON (Partial Guild)
  deriving (HasID Guild) via HasIDField "id" (Partial Guild)

data UpdatedGuild = UpdatedGuild
  { id :: Snowflake Guild
  , name :: Text
  , icon :: Maybe Text
  , splash :: Maybe Text
  , owner :: Maybe Bool
  , ownerID :: Snowflake User
  , permissions :: Maybe Word64
  , region :: Text
  , afkChannelID :: Maybe (Snowflake GuildChannel)
  , afkTimeout :: Int
  , embedEnabled :: Maybe Bool
  , embedChannelID :: Maybe (Snowflake GuildChannel)
  , verificationLevel :: Int
  , defaultMessageNotifications :: Int
  , explicitContentFilter :: Int
  , roles :: SnowflakeMap Role
  , emojis :: SnowflakeMap Emoji
  , features :: [Text]
  , mfaLevel :: Int
  , applicationID :: Maybe (Snowflake User)
  , widgetEnabled :: Maybe Bool
  , widgetChannelID :: Maybe (Snowflake GuildChannel)
  , systemChannelID :: Maybe (Snowflake GuildChannel)
  }
  deriving (Eq, Show, Generic)
  deriving (TextShow) via TSG.FromGeneric UpdatedGuild
  deriving (FromJSON) via CalamityJSON UpdatedGuild
  deriving (HasID Guild) via HasIDField "id" UpdatedGuild