From a3bdc1f7920615c41159bfb2f949a745a63a7230 Mon Sep 17 00:00:00 2001
From: Jason Woofenden <jason@jasonwoof.com>
Date: Wed, 7 Dec 2011 15:55:26 -0500
Subject: [PATCH] fix login_cached, playlist fetch coming along

---
 api.coffee |   80 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 79 insertions(+), 1 deletion(-)

diff --git a/api.coffee b/api.coffee
index 52e6933..958ba6e 100644
--- a/api.coffee
+++ b/api.coffee
@@ -40,7 +40,8 @@ load_auth = (callback) ->
 		if err
 			callback err
 		else
-			callback null, JSON.parse data
+			auth = JSON.parse data
+			callback null, auth
 
 # elements look like: ['name', {attr: value, attr2: value2,...}, [contents]]
 # text nodes look like elements with blank names: ['', {}, 'foo']
@@ -211,6 +212,83 @@ tune = (tag, callback) ->
 		req.write args
 		req.end()
 
+# FIXME call tune automatically or remove "tag" argument
+get_playlist = (tag, callback) ->
+	login_cached (err, sk) ->
+		return callback(err) if err?
+
+		console.log "getting playlist with sk=#{sk}"
+		http.get { host: 'alpha.libre.fm', port: 80, path: "/2.0/?method=radio.getPlaylist&sk=#{sk}"}, (res) ->
+			if res.statusCode != 200
+				console.log "login response code: #{res.statusCode}"
+				callback "login response code: #{res.statusCode}"
+				return
+
+			res.setEncoding 'utf8'
+			response_text = ''
+			res.on 'data', (chunk) ->
+				response_text += chunk
+			res.on 'end', ->
+				# while testing, got response_text === "BADSESSION"
+				console.log "server said: #{response_text}"
+				parse_xml response_text, (err, response) ->
+					parse_lfm_xml response_text, (err, lfm) ->
+						if err
+							# parse error
+							callback "Error while parsing server reply while requesting playlist: #{err}"
+							return
+						for element in response
+							if element[0] is 'playlist'
+								# FIXME write this bit
+								console.log 'Yay we got a playlist!'
+								console.log JSON.stringify element[0]
+							else if element[0] is 'lfm'
+								if element[1].status isnt 'failed'
+									callback "Server responded to our playlist request with #{JSON.stringify response}"
+									return
+
+								# FIXME search for "error" element instead of assuming it's first
+								code = element[2][0]?.code
+								if code is 4 # invalid authentication token
+									delay = 0
+									sk_age = now_ms() - auth.sk_date
+									if sk_age < 30000
+										console.log "Server said our auth token was invalid only #{sk_age}ms after we got it."
+										delay = 30000 - sk_age
+										console.log "Waiting another #{delay}ms before requesting another one."
+									# get new auth token
+									timeout delay, ->
+										login (err, sk) ->
+											if err
+												callback err
+												return
+											get_playlist tag, callback
+											return
+								else
+									if typeof element[2][0]?[2] is 'string'
+										message = JSON.stringify element[2][0][2]
+									console.log "server response from tune: code #{code} message: #{message}"
+									callback "Error during tune: code #{code} message: #{message}"
+								return
+						# looked through all elements, and didn't find one with name "error"
+						callback "Error during tune: server responded without success or error message"
+
+test = (tag, callback) ->
+	tune tag, (err) ->
+		if err?
+			console.log err
+			callback err
+			return
+		get_playlist tag, ->
+			if err?
+				console.log err
+				callback err
+				return
+			console.log 'yay'
+			callback()
+
+exports.test = test
+exports.get_playlist = get_playlist
 exports.tune = tune
 exports.login = login # fixme remove this from the API and call it automatically
 exports.new_auth_token = new_auth_token
-- 
1.7.10.4