#!/usr/bin/env python3

# http://www.drdobbs.com/testing/unit-testing-with-python/240165163

import inspect
import optparse
import os
import sys
import unittest
import yaml
import tempfile

localmodule = os.path.realpath(
    os.path.join(os.path.dirname(inspect.getfile(inspect.currentframe())), '..'))
print('localmodule: ' + localmodule)
if localmodule not in sys.path:
    sys.path.insert(0, localmodule)

import fdroidserver.common
import fdroidserver.metadata


class MetadataTest(unittest.TestCase):
    '''fdroidserver/metadata.py'''

    def test_read_metadata(self):

        def _build_yaml_representer(dumper, data):
            '''Creates a YAML representation of a Build instance'''
            return dumper.represent_dict(data)

        testsdir = os.path.dirname(__file__)
        os.chdir(testsdir)

        self.maxDiff = None

        # these need to be set to prevent code running on None, only
        # 'accepted_formats' is actually used in metadata.py
        config = dict()
        config['sdk_path'] = '/opt/android-sdk'
        config['ndk_paths'] = dict()
        config['accepted_formats'] = ['json', 'txt', 'yml']
        fdroidserver.common.config = config

        apps = fdroidserver.metadata.read_metadata(xref=True)
        for appid in ('org.smssecure.smssecure', 'org.adaway', 'org.videolan.vlc'):
            savepath = os.path.join('metadata', 'dump', appid + '.yaml')
            frommeta = dict(apps[appid])
            self.assertTrue(appid in apps)
            with open(savepath, 'r') as f:
                frompickle = yaml.load(f)
            self.assertEqual(frommeta, frompickle)
            # Uncomment to overwrite
            # with open(savepath, 'w') as f:
            #     yaml.add_representer(fdroidserver.metadata.Build, _build_yaml_representer)
            #     yaml.dump(frommeta, f, default_flow_style=False)

    def test_rewrite_yaml_fakeotaupdate(self):

        # setup/reset test dir if necessary and setup params
        tmpdir = os.path.join(os.path.dirname(__file__), '..', '.testfiles')
        if not os.path.exists(tmpdir):
            os.makedirs(tmpdir)
        testdir = tempfile.mkdtemp(prefix='test_rewrite_metadata_', dir=tmpdir)
        fdroidserver.common.config = {'accepted_formats': ['txt', 'yml']}

        # rewrite metadata
        allapps = fdroidserver.metadata.read_metadata(xref=True)
        for appid, app in allapps.items():
            if appid == 'fake.ota.update':
                fdroidserver.metadata.write_metadata(os.path.join(testdir, appid + '.yml'), app)

        # assert rewrite result
        with open(os.path.join(testdir, 'fake.ota.update.yml'), 'r', encoding='utf-8') as result:
            with open('metadata/rewrite-yml/fake.ota.update.yml', 'r', encoding='utf-8') as orig:
                self.maxDiff = None
                self.assertEqual(result.read(), orig.read())

    def test_rewrite_yaml_fdroidclient(self):

        # setup/reset test dir if necessary and setup params
        tmpdir = os.path.join(os.path.dirname(__file__), '..', '.testfiles')
        if not os.path.exists(tmpdir):
            os.makedirs(tmpdir)
        testdir = tempfile.mkdtemp(prefix='test_rewrite_metadata_', dir=tmpdir)
        fdroidserver.common.config = {'accepted_formats': ['txt', 'yml']}

        # rewrite metadata
        allapps = fdroidserver.metadata.read_metadata(xref=True)
        for appid, app in allapps.items():
            if appid == 'org.fdroid.fdroid':
                fdroidserver.metadata.write_metadata(os.path.join(testdir, appid + '.yml'), app)

        # assert rewrite result
        with open(os.path.join(testdir, 'org.fdroid.fdroid.yml'), 'r', encoding='utf-8') as result:
            with open('metadata/rewrite-yml/org.fdroid.fdroid.yml', 'r', encoding='utf-8') as orig:
                self.maxDiff = None
                self.assertEqual(result.read(), orig.read())

    def test_rewrite_yaml_special_build_params(self):

        # setup/reset test dir if necessary and setup params
        tmpdir = os.path.join(os.path.dirname(__file__), '..', '.testfiles')
        if not os.path.exists(tmpdir):
            os.makedirs(tmpdir)
        testdir = tempfile.mkdtemp(prefix='test_rewrite_metadata_', dir=tmpdir)
        fdroidserver.common.config = {'accepted_formats': ['txt', 'yml']}

        # rewrite metadata
        allapps = fdroidserver.metadata.read_metadata(xref=True)
        for appid, app in allapps.items():
            if appid == 'app.with.special.build.params':
                fdroidserver.metadata.write_metadata(os.path.join(testdir, appid + '.yml'), app)

        # assert rewrite result
        with open(os.path.join(testdir, 'app.with.special.build.params.yml'), 'r', encoding='utf-8') as result:
            with open('metadata/rewrite-yml/app.with.special.build.params.yml', 'r', encoding='utf-8') as orig:
                self.maxDiff = None
                self.assertEqual(result.read(), orig.read())


if __name__ == "__main__":
    parser = optparse.OptionParser()
    parser.add_option("-v", "--verbose", action="store_true", default=False,
                      help="Spew out even more information than normal")
    (fdroidserver.common.options, args) = parser.parse_args(['--verbose'])

    newSuite = unittest.TestSuite()
    newSuite.addTest(unittest.makeSuite(MetadataTest))
    unittest.main()