#!/usr/bin/python -t
# -*- mode: Python; indent-tabs-mode: nil; -*-
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import errno, os, sys
import pickle


class BuildInfo:

    def __init__(self,pkgid=None,summary=None,new=False,invalid=False):
        self.pkgid = pkgid
        self.summary = summary
        self.new = new
        self.invalid = invalid


class BuildReportManager:
    
    def __init__(self,workdir,id):
        self.fname = os.path.join(workdir,'%s.buildreport.pickle'%id.replace('/','_'))
        self.builds = []
        self._load(self.fname)

    def Add(self,buildinfo):
        if not buildinfo:
            return
        self.builds.append(buildinfo)
        self._save(self.fname)

    def Clear(self):
        self.builds = []
        self._save(self.fname)
    
    def GetCount(self):
        return len(self.builds)

    def GetReport(self):
        
        def cmplc(a,b):  # case-insensitive cmp for Python < 2.4 sort()
            return cmp(a.lower(),b.lower())
        def cmpbuilds(a,b):
            return cmplc(a.pkgid,b.pkgid)

        builds = self.builds
        builds.sort(cmpbuilds)
        report = []
        for b in builds:
            if b.new:
                s = 'NEW '
            elif b.invalid:
                s = '(!) '
            else:
                s = '    '
            s += b.pkgid
            if b.summary:
                s += ' : ' + b.summary
            report.append(s)
        return '\n'.join(report)
            
    def _load(self,fname):
        try:
            f = file(fname,'r')
            self.builds = pickle.load(f)
            f.close()
        except IOError, (err, strerr):
            if err != 2:  # everything but file_not_found is unexpected
                print 'ERROR: %s: %s' % (strerr,self.fname)
                raise IOError, (err, strerr)

    def _save(self,fname):
        f = file(fname,'w')
        pickle.dump(self.builds,f)
        f.close()
        

class NoBuildReportManager(BuildReportManager):

    def __init__(self,workdir=None,id=None):
        self.builds = []

    def Add(self,buildinfo):
        pass