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(ns message
(:use user
utils))
;; Message parsing
;; http://snippets.dzone.com/posts/show/6995
(def url-regex #"(?i)^((http\:\/\/|https\:\/\/|ftp\:\/\/)|(www\.))+(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$")
(def pic-regex #"(?i)\.(jpg|jpeg|png|gif|bmp|svg)(\?|&|$)")
(defn is-image? [word]
(and (re-find url-regex word)
(re-find pic-regex word)))
(defn take-images [content]
(filter is-image? (.split content " ")))
(defn classify-msg [msg]
(let [words (.split msg " ")
imgs (map is-image? words)]
(cond (every? boolean imgs) :image
(some boolean imgs) :mixed
:else :text)))
(def recip-regex #"(?:^|\s)@\w+")
(defn get-recips [content]
(filter
boolean
(for [at-nick (set (re-seq recip-regex content))]
(fetch-nick (.substring (.trim at-nick) 1)))))
(defn get-recips-from-msgs [msgs]
(let [recips (set (apply concat
(for [m msgs]
(re-seq recip-regex (:content m)))))]
(filter
boolean
(for [r recips]
(fetch-nick (.substring (.trim r) 1))))))
(def topic-regex #"(?:^|\s)#\w+")
(defn get-topics [content]
(set
(for [r (re-seq topic-regex content)]
(lower-case (.substring (.trim r) 1)))))
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