From f0405c574a278d4f85b47ac45eb54bab9758a9a8 Mon Sep 17 00:00:00 2001
From: gered <gered@blarg.ca>
Date: Sun, 6 Apr 2014 14:37:44 -0400
Subject: [PATCH] implement basic operation for adding new ascii art

---
 src/toascii/models/art.clj | 17 +++++++++++++++--
 src/toascii/models/db.clj  | 20 +++++++++++++++++++-
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/src/toascii/models/art.clj b/src/toascii/models/art.clj
index 8803757..be77ccd 100644
--- a/src/toascii/models/art.clj
+++ b/src/toascii/models/art.clj
@@ -1,5 +1,15 @@
 (ns toascii.models.art
-  (:require [toascii.models.db :as db]))
+  (:require [toascii.models.db :as db]
+            [toascii.util :refer [convert-line-endings remove-leading-and-trailing-blank-lines]]))
+
+(defn- prep-ascii-art [s]
+  (-> s
+      (convert-line-endings)
+      (remove-leading-and-trailing-blank-lines)))
+
+(defn valid-name? [name]
+  (if-not (nil? name)
+    (re-matches #"[A-Za-z0-9\-]+" name)))
 
 (defn search [query]
   )
@@ -14,4 +24,7 @@
   )
 
 (defn add [name s ip]
-  )
+  (if-not (valid-name? name)
+    (throw (new Exception "Invalid name")))
+  (let [prepped-ascii (prep-ascii-art s)]
+    (db/add-ascii-art name prepped-ascii ip)))
diff --git a/src/toascii/models/db.clj b/src/toascii/models/db.clj
index bc31fcb..b7d3c53 100644
--- a/src/toascii/models/db.clj
+++ b/src/toascii/models/db.clj
@@ -1,7 +1,8 @@
 (ns toascii.models.db
   (:require [com.ashafa.clutch :as couch]
             [cemerick.url :as url]
-            [toascii.config :refer [config-val]]))
+            [toascii.config :refer [config-val]]
+            [toascii.util :refer [now sha256]]))
 
 (defn db-url [db-name]
   (let [db-config (config-val :database)
@@ -24,3 +25,20 @@
         (map first x)
         (seq x)))
 
+(defn existing-ascii-art? [name hash]
+  (->> (couch/get-view-with-db (db-library) "search" "hashes" {:key [name hash]})
+       (seq)))
+
+(defn add-ascii-art [name ascii ip]
+  (let [hash (sha256 ascii)]
+    (println name hash)
+    (if (existing-ascii-art? name hash)
+      (throw (new Exception (str "Existing ASCII art with same name and art found")))
+      (couch/put-document-with-db
+        (db-library)
+        {:name    name
+         :date    (now)
+         :ip      ip
+         :format  "ascii"
+         :hash    (sha256 ascii)
+         :content ascii}))))
\ No newline at end of file