#!/usr/bin/python

import os
import sys
import string 
import commands
import datetime

def writeSPEC(pkgName, pkgVersion, summary, license, url, source, description, dateStamp, packager, changelog):
    specContent = """Name:           %s
Version:        %s
Release:        1%%{?dist}
Summary:        %s

Group:          Applications/Activities
License:        %s
URL:            %s
Source0:        %s
BuildRoot:      %%{_tmppath}/%%{name}-%%{version}-%%{release}-root-%%(%%{__id_u} -n)
BuildArch:      noarch
Requires:       sugar

%%description
%s

%%prep


%%build


%%install
rm -rf $RPM_BUILD_ROOT
mkdir -p $RPM_BUILD_ROOT%%{_datadir}/activities
unzip -d $RPM_BUILD_ROOT%%{_datadir}/activities %%{SOURCE0}


%%clean
rm -rf $RPM_BUILD_ROOT


%%files
%%defattr(-,root,root,-)
%%doc
%%{_datadir}/activities/*


%%changelog
* %s %s - %s-1
- %s
    """ % (pkgName, pkgVersion, summary, license, url, source, description, dateStamp, packager, pkgVersion, changelog)
    specname = pkgName + ".spec"
    spec = open(specname, 'w')
    spec.write(specContent)
    spec.close()
    return specname
    

def getName(src):
    name = src.split('-')
    return name[0]


def getPath():
    return os.getcwd()

def getVersion(src):
    version = src.split('-')
    return version[1].strip('.xo')

def getToday():
    todayDate = datetime.date.today()
    dayOfWeekList  = {0:'Mon',1:'Tue',2:'Wed',3:'Thu',4:'Fri',5:'Sat',6:'Sun'}
    monthList = {1:'Jan',2:'Feb',3:'Mar',4:'Apr',5:'May',6:'Jun',7:'Jul',8:'Aug',9:'Sep',10:'Oct',11:'Nov',12:'Dec'}
    dayOfWeek = dayOfWeekList[todayDate.weekday()]
    month = monthList[todayDate.month]
    day = todayDate.day
    year = todayDate.year
    return "%s %s %s %s" % (dayOfWeek, month, day, year)
    
def getInfo(srcpkg):
    (status, activity) = commands.getstatusoutput("unzip -p %s */activity/activity.info" % srcpkg)
    if status != 0:
        print "Error: %s" % activity
    return activity

def get_entry(a, entry):
    e = entry.lower()
    if not a.has_key(e):
        return ""
    return a[e]

def parseInfo(pkgInfo):
    tmpdict = {}
    for attr in pkgInfo.split("\n"):
        if not len(attr):
            continue
        vals = attr.split('=')
        if len(vals) != 2:
            # This is the [Activity] Line
            continue
        name, value = vals[0].strip(), vals[1].strip()
        tmpdict[name] = value
    summary = get_entry(tmpdict, 'summary')
    description = get_entry(tmpdict, 'description')
    packager = get_entry(tmpdict, 'packager')
    license = get_entry(tmpdict, 'license')
    url = get_entry(tmpdict, 'url')
    pkgVersion = get_entry(tmpdict, 'activity_version')
    for item in 'ummary description packager license url'
        if item == '':
            print "Error: %s is empty I can not go on"
            sys.exit(1)
    return summary, description, packager, license, url	

def getChangeLog(srcpkg):
    return "TODO FIXME"

def makerpm(spec, path):
#rpmbuild --define "_sourcedir %s" --define "_specdir %s" --define "_builddir %s" --define "_srcrpmdir %s" --define "_rpmdir %s" --define "dist .olpc2" --define "fedora 7" --nodeps -ba %s

    (s, o) = commands.getstatusoutput("rpmbuild --define \"_sourcedir %s\" --define \"_specdir %s\" --define \"_builddir %s\" --define \"_srcrpmdir %s\" --define \"_rpmdir %s\" --define \"dist .olpc2\" --define \"fedora 7\" --nodeps -ba %s" % (path, path, path, path, path, spec))
    if s != 0:
        print "Error: %s" % o


def main(srcpkg):
    
    pkgName = getName(srcpkg)
    pkgVersion = getVersion(srcpkg)
    pkgInfo = getInfo(srcpkg)
    (summary, description, packager, license, url, pkgVersion) = parseInfo(pkgInfo)
    changelog = getChangeLog(srcpkg)
    dateStamp = getToday()
    spec = writeSPEC(pkgName, pkgVersion, summary, license, url, srcpkg, description, dateStamp, packager, changelog)
    path = getPath()
    makerpm(spec, path)

if __name__ == '__main__':
    if len(sys.argv) < 2:
        print "Bad usage"
        sys.exit(1)

    #log file is first option
    src = sys.argv[1]
    if not os.path.exists(src):
        print "Source file does not exist."
        sys.exit(1)

    main(src)