(ns ldview.tasks.runner
  (:require [ldview.tasks.scrape :as scrape]
            [ldview.tasks.images :as images]
            [me.raynes.fs :as fs]
            [ldview.models.entry :as entry]
            [ldview.models.competition :as competition]
            [ldview.models.schema :as schema]
            [noir.io :as io]))


(defn delete-database! []
  (let [db-file (str (io/resource-path) schema/db-store)]
    (if (fs/exists? db-file) (fs/delete db-file))))

(defn initialize-file-structure! [competition-id]
  (let [path (images/base-path competition-id)]
    (if (fs/exists? path) (fs/delete-dir path))
    (fs/mkdirs (str path "/thumbs/"))
    (fs/mkdirs (str path "/fullscreen/"))
    (fs/mkdirs (str path "/raw/"))))

(defn save-entry! [competition-id new-entry]
  (if-not (entry/exists? (:ld_uid new-entry))
    (entry/create! new-entry))

  (doseq [image-url (:images new-entry)]
    (let [id (:ld_uid new-entry)
          number (last (first (re-seq #"shot([0-9]+)" image-url)))
          raw-image-path (images/image-name competition-id "raw" id number)]
      (if-not (fs/exists? raw-image-path)
        (do
          (scrape/save-image-from-url image-url raw-image-path)
          (images/sourceimage->fullscreen raw-image-path (images/image-name competition-id "fullscreen" id number))
          (images/sourceimage->thumb raw-image-path (images/image-name competition-id "thumbs" id number)))))))

(defn fetch-all-content
  ([]
     (fetch-all-content (competition/latest)))
  ([competition-id]
     (fetch-all-content competition-id (dec (scrape/number-of-pages competition-id))))
  ([competition-id pages]
     ; TODO: Make it multithreaded
     (doseq [page (range pages)]
       (doseq [ld-uid (scrape/entries-on-page competition-id (inc page))]
         (save-entry! competition-id (scrape/entry-details competition-id ld-uid))))))

(defn load-competition [competition-id]
  (if-not (schema/initialized?) (schema/create-initial-tables))
  (initialize-file-structure! competition-id)
  (competition/create! competition-id (scrape/theme competition-id))
  (fetch-all-content competition-id))

(defn reset-all! []
  (delete-database!)
  (fs/delete-dir (images/base-path))
  (schema/create-initial-tables))