(ns advent.screens.rooms
  (:require [advent.zone :as zone])
  (:import [com.badlogic.gdx.graphics Pixmap Pixmap$Filter Texture Texture$TextureFilter]
           [com.badlogic.gdx.graphics.g2d TextureRegion]
           [com.badlogic.gdx.utils.viewport FitViewport]
           [com.badlogic.gdx.scenes.scene2d Actor Stage]
           [java.lang Object]))

(defn make-entity [id {:keys [scripts script only-script] :as entity}]
  (merge entity
         {:id id
          :mouse-in? (fn [entities x y]
                       (if-let [box (get-in entities [:room :entities id :box])]
                         ((apply zone/box box) x y)
                         (let [{entity-x :x entity-y :y width :width scale-x :scale-x scale-y :scale-y origin-x :origin-x origin-y :origin-y height :height region :object} (get-in entities [:room :entities id]) 
                               
                               width (or width (if (instance? TextureRegion region ) (.getRegionWidth ^TextureRegion region) 0))
                               height (or height (if (instance? TextureRegion region ) (.getRegionHeight ^TextureRegion region) 0))
                               entity-x (- entity-x (* (or origin-x 0)
                                                       (or scale-x 1)))
                               entity-y (- entity-y (* (or origin-y 0)
                                                       (or scale-y 1)))]
                           
                           ((zone/box entity-x entity-y
                                      (+ entity-x (* width (or scale-x 1)))
                                      (+ entity-y (* height (or scale-y 1)))) x y))))}
         (when (or script scripts only-script)
           {:get-script (fn [cursor [x y]]
                          (cond only-script
                                only-script

                                (= :main cursor)
                                script

                                scripts
                                (or (scripts (:value cursor)) (scripts :default))

                                :else
                                nil)
                          )})))
(defn make [& {:keys [collision interactions entities] :as params}]
  (let [interactions-as-list (for [[id {:keys [script scripts only-script box] :as spec}] interactions]
                               (merge spec
                                      (when box
                                        {:mouse-in? (fn [_ x y]
                                                      ((apply zone/box box) x y))})
                                      (when (or script scripts only-script)
                                        {:get-script (fn [cursor [x y]]
                                                       (cond only-script
                                                             only-script

                                                             (= :main cursor)
                                                             script

                                                             scripts
                                                             (or (scripts (:value cursor)) (scripts :default))

                                                             :else
                                                             nil)
                                                       )})
                                      {:id id}))
        entities (into {} (for [[id entity] entities]
                            [id (make-entity id entity)]))]
    (merge params {:collision (advent.pathfind/map-from-resource collision)
                   :interactions interactions-as-list
                   :entities entities})))