(ns admin
  (:import java.io.File)
  (:require [clojure.contrib.str-utils2 :as s])
  (:use compojure
        email
        utils))

;; Debug Page

(defn exception-to-string [e]
  (let [sw (java.io.StringWriter.)
        pw (java.io.PrintWriter. sw)]
    (.printStackTrace e pw)
    (.toString sw)))

(defn lookup-templates [dir selected]
  (for [f (.listFiles (File. dir))
        :when (and (.isFile f) (.endsWith (.getName f) ".st"))]
    (let [n (s/butlast (.getName f) 3)]
      {"template" n
       "selected" (= selected n)})))

(defn debug-page [session flash]
  (if-vip
   (let [st (fetch-template "debug" session)]
     (.setAttribute st "flash" (:msg flash))
     (.setAttribute st "mailtemps" (lookup-templates "template/mail" "welcome"))
     (.toString st))))

(defn debug-commmand! [session params]
  (if-vip
   (let [action (:action params)
         msg (try 
              (cond (= action "regemail")
                    (do (send-registration-email (params :nick) (params :to) (params :template))
                        (str "Sent registration mail to " (params :to)))
                    :else (str "Unknown action: " action))
              (catch Exception e 
                (str "<h2 color=\"red\">Caught Exception in " action " --"
                     (.getMessage e)
                     "</h2><br><pre>" 
                     (exception-to-string e)
                     "</pre>")))]
     [(flash-assoc :msg msg)
      (redirect-to "/debug")])))

;; Muting

(defn mute-status [session]
  (if-vip
   (println session)))

(defn parse-pos-interval [time unit]
  (let [t (maybe-parse-int time 0)
        u (lower-case unit)]
    (and (> t 0)
         (#{"minute" "hour" "day"} u)
         (str time " " u))))

(defn mute! [session params]
  (if-vip
   (let [nick (params :user)
         user_id (:user_id (fetch-nick nick))
         interval (parse-pos-interval (params :time) (params :unit))
         reason (params :reason)
         admin-user-id (session :user_id)]
     (cond (not user_id) [400 "INVALID_NICK"]
           (not interval) [400 "INVALID_INTERVAL"]
           :else (do "OK")))))