import os
import re
import urllib2
import json

from scriptCommon import catchPath
from scriptCommon import runAndCapture

issueNumberRe = re.compile( r'(.*?)#([0-9]*)([^0-9]?.*)' )

rootPath = os.path.join( catchPath, 'include/' )
versionPath = os.path.join( rootPath, "internal/catch_version.hpp" )


hashes = runAndCapture( ['git', 'log', '-2', '--format="%H"', versionPath] )
lines = runAndCapture( ['git', 'log', hashes[1] + ".." + hashes[0], catchPath] )

prevLine = ""
messages = []
dates = []
issues = {}

def getIssueTitle( issueNumber ):
 try:
 s = urllib2.urlopen("https://api.github.com/repos/philsquared/catch/issues/" + issueNumber ).read() 
 except e:
 return "#HTTP Error#"

 try:
 j = json.loads( s )
 return j["title"]
 except e:
 return "#JSON Error#"

for line in lines:
 if line.startswith( "commit"):
 pass
 elif line.startswith( "Author:"):
 pass
 elif line.startswith( "Date:"):
 dates.append( line[5:].lstrip() )
 pass
 elif line == "" and prevLine == "":
 pass
 else:
 prevLine = line
 match = issueNumberRe.match( line )
 line2 = ""
 while match:
 issueNumber = match.group(2)
 issue = '#{0} ("{1}")'.format( issueNumber, getIssueTitle( issueNumber ) )
 line2 = line2 + match.group(1) + issue
 match = issueNumberRe.match( match.group(3) )
 if line2 == "":
 messages.append( line )
 else:
 messages.append( line2 )

print "All changes between {0} and {1}:\n".format( dates[-1], dates[0] )

for line in messages:
 print line