#!/usr/bin/env python
# -*- coding: utf-8 -*-

from __future__ import print_function

import argparse
import kobo.conf
import os
import sys
import tempfile
import contextlib
import shutil

here = sys.path[0]
if here != '/usr/bin':
    # Git checkout
    sys.path[0] = os.path.dirname(here)

import pungi.compose
import pungi.phases
import pungi.paths


class ValidationCompose(pungi.compose.Compose):
    def __init__(self, conf, has_old, topdir):
        self.topdir = topdir
        self.conf = conf
        self._logger = None
        self.just_phases = []
        self.skip_phases = []
        self.has_old_composes = has_old
        self.paths = pungi.paths.Paths(self)

    @property
    def old_composes(self):
        return '/dummy' if self.has_old_composes else None

    @property
    def compose_id(self):
        return 'Dummy-1.0-20160811.t.0'

    @property
    def compose_type(self):
        return 'test'

    @property
    def compose_date(self):
        return '20160811'

    @property
    def compose_respin(self):
        return '0'


@contextlib.contextmanager
def in_temp_dir():
    tempdir = tempfile.mkdtemp()
    yield tempdir
    shutil.rmtree(tempdir)


def run(config, topdir, has_old):
    conf = kobo.conf.PyConfigParser()
    conf.load_from_file(config)

    compose = ValidationCompose(conf, has_old, topdir)

    pkgset_phase = pungi.phases.PkgsetPhase(compose)
    phases = [
        pungi.phases.InitPhase(compose),
        pungi.phases.BuildinstallPhase(compose),
        pkgset_phase,
        pungi.phases.GatherPhase(compose, pkgset_phase),
        pungi.phases.ExtraFilesPhase(compose, pkgset_phase),
        pungi.phases.CreaterepoPhase(compose),
        pungi.phases.OstreeInstallerPhase(compose),
        pungi.phases.OSTreePhase(compose),
        pungi.phases.ProductimgPhase(compose, pkgset_phase),
        pungi.phases.CreateisoPhase(compose),
        pungi.phases.LiveImagesPhase(compose),
        pungi.phases.LiveMediaPhase(compose),
        pungi.phases.ImageBuildPhase(compose),
        pungi.phases.ImageChecksumPhase(compose),
        pungi.phases.TestPhase(compose),
    ]

    errors = []
    for phase in phases:
        if phase.skip():
            continue
        try:
            phase.validate()
        except ValueError as ex:
            for i in str(ex).splitlines():
                errors.append("%s: %s" % (phase.name.upper(), i))

    return errors


def main(args=None):
    parser = argparse.ArgumentParser()
    parser.add_argument('config', metavar='CONFIG',
                        help='configuration file to validate')
    parser.add_argument('--old-composes', action='store_true',
                        help='indicate if pungi-koji will be run with --old-composes option')
    opts = parser.parse_args(args)

    with in_temp_dir() as topdir:
        errors = run(opts.config, topdir, opts.old_composes)

    for msg in errors:
        print(msg)

    return bool(errors)


if __name__ == '__main__':
    if main():
        sys.exit(1)