Add logic in soundcloud.py to accept urls and search back through log for urls

modules/soundcloud.py

@@ -1,34 +1,61 @@
 #--require-config soundcloud-api-key
 
-import json, time
+import json, re, time
 import Utils
 
-URL_SOUNDCLOUD = "http://api.soundcloud.com/tracks"
+URL_SOUNDCLOUD_TRACK = "http://api.soundcloud.com/tracks"
+URL_SOUNDCLOUD_RESOLVE = "http://api.soundcloud.com/resolve"
+REGEX_SOUNDCLOUD = "https://soundcloud.com/([^/]+)/([^/]+)"
 
 class Module(object):
     _name = "SoundCloud"
     def __init__(self, bot):
         self.bot = bot
         bot.events.on("received").on("command").on("soundcloud", "sc"
-            ).hook(self.soundcloud, min_args=1, help="Search SoundCloud")
+            ).hook(self.soundcloud, help="Search SoundCloud")
 
     def soundcloud(self, event):
-        page = Utils.get_url(URL_SOUNDCLOUD, get_params={
-            "client_id": self.bot.config["soundcloud-api-key"],
-            "limit": 1, "q": event["args"]}, json=True)
-        if page:
-            if page:
-                page = page[0]
-                title = page["title"]
-                user = page["user"]["username"]
-                duration = time.strftime("%H:%M:%S", time.gmtime(page[
-                    "duration"]/1000))
-                if duration.startswith("00:"):
-                    duration = duration[3:]
-                link = page["permalink_url"]
-                event["stdout"].write("%s [%s] (posted by %s) %s" % (title,
-                    duration, user, link))
+        query = None
+        url = None
+
+        if event["args"]:
+            match = re.search(REGEX_SOUNDCLOUD, event["args"])
+            if match:
+                url = match.string
             else:
-                event["stderr"].write("No results found")
+                query = event["args"]
+        else:
+            last_soundcloud = event["log"].find(REGEX_SOUNDCLOUD)
+            if last_soundcloud:
+                url = re.match(REGEX_SOUNDCLOUD,
+                    last_soundcloud.message).string
+
+        if not query and not url:
+            event["stderr"].write("no search phrase provided")
+            return
+        has_query = not query == None
+        get_params = {"limit": 1,
+            "client_id": self.bot.config["soundcloud-api-key"]}
+
+        if query:
+            get_params["q"] = query
+        else:
+            get_params["url"] = url
+
+        page = Utils.get_url(
+            URL_SOUNDCLOUD_TRACK if has_query else URL_SOUNDCLOUD_RESOLVE,
+            get_params=get_params, json=True)
+
+        if page:
+            page = page[0] if has_query else page
+            title = page["title"]
+            user = page["user"]["username"]
+            duration = time.strftime("%H:%M:%S", time.gmtime(page[
+                "duration"]/1000))
+            if duration.startswith("00:"):
+                duration = duration[3:]
+            link = page["permalink_url"]
+            event["stdout"].write("%s [%s] (posted by %s) %s" % (title,
+                duration, user, link))
         else:
             event["stderr"].write("Failed to load results")