module Asana.Api.Task.Search
  ( SearchWorkspace(..)
  , TaskTypeFilter(..)
  , searchWorkspace
  ) where

import Asana.Api.Prelude

import Asana.Api.Gid
import Asana.Api.Named
import Asana.Api.Request
import Asana.Api.Task
import Data.HashMap.Strict (HashMap)
import qualified Data.HashMap.Strict as HashMap
import Data.List (intercalate)
import qualified Data.Text as T

data TaskTypeFilter = TasksOnly | SubtasksOnly | AllTaskTypes

data SearchWorkspace = SearchWorkspace
  { swWorkspaceId :: Gid
  , swProjectIds :: [Gid]
  , swTaskStatusFilter :: TaskStatusFilter
  , swCustomFields :: HashMap Gid Text
  , swTaskTypeFilter :: TaskTypeFilter
  }

-- | Search for tasks within a workspace
searchWorkspace
  :: (MonadUnliftIO m, MonadLogger m, MonadReader env m, HasAsanaAccessKey env)
  => SearchWorkspace
  -> m [Named]
searchWorkspace SearchWorkspace {..} =
  getAllParams
      (T.unpack $ "/workspaces/" <> gidToText swWorkspaceId <> "/tasks/search")
    $ ( "projects.all"
      , intercalate "," $ map (T.unpack . gidToText) swProjectIds
      )
    : customFieldParams
    <> completed
    <> isSubtask
 where
  customFieldParams =
    map
        (\(a, b) ->
          ("custom_fields." <> T.unpack (gidToText a) <> ".value", T.unpack b)
        )
      $ HashMap.toList swCustomFields

  completed = case swTaskStatusFilter of
    AllTasks -> []
    IncompletedTasks -> [("completed", "false")]

  isSubtask = case swTaskTypeFilter of
    AllTaskTypes -> []
    TasksOnly -> [("is_subtask", "false")]
    SubtasksOnly -> [("is_subtask", "true")]