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

import os
import json
import fstools
import re
import subprocess


class termcolors:
    HEADER = '\033[95m'
    OKBLUE = '\033[94m'
    OKGREEN = '\033[92m'
    WARNING = '\033[93m'
    FAIL = '\033[91m'
    ENDC = '\033[0m'
    BOLD = '\033[1m'
    UNDERLINE = '\033[4m'


STATUS_RELEASED = 'RELEASED'
STATUS_AVAILABLE = 'AVAILABLE'
STATUS_IN_WORK = 'IN_WORK'
STATUS_EXISTS = 'EXISTS'
STATUS_OLD = 'OLD'
STATUS_MISSING = 'MISSING'
#
STATUS_CLEAN = 'CLEAN'
STATUS_CHANGED = 'CHANGED'
#
STATUS_UNKNOWN = 'UNKNOWN'


STATUS_LENGTH = 13

STR_STATUS = {
    STATUS_RELEASED: termcolors.OKGREEN + (STATUS_LENGTH - len(STATUS_RELEASED)) * ' ' + STATUS_RELEASED + termcolors.ENDC,
    STATUS_AVAILABLE: termcolors.OKGREEN + (STATUS_LENGTH - len(STATUS_AVAILABLE)) * ' ' + STATUS_AVAILABLE + termcolors.ENDC,
    STATUS_IN_WORK: termcolors.WARNING + (STATUS_LENGTH - len(STATUS_IN_WORK)) * ' ' + STATUS_IN_WORK + termcolors.ENDC,
    STATUS_OLD: termcolors.WARNING + (STATUS_LENGTH - len(STATUS_OLD)) * ' ' + STATUS_OLD + termcolors.ENDC,
    STATUS_EXISTS: termcolors.WARNING + (STATUS_LENGTH - len(STATUS_EXISTS)) * ' ' + STATUS_EXISTS + termcolors.ENDC,
    STATUS_MISSING: termcolors.FAIL + (STATUS_LENGTH - len(STATUS_MISSING)) * ' ' + STATUS_MISSING + termcolors.ENDC,
    #
    STATUS_CLEAN: termcolors.OKGREEN + (STATUS_LENGTH - len(STATUS_CLEAN)) * ' ' + STATUS_CLEAN + termcolors.ENDC,
    STATUS_CHANGED: termcolors.WARNING + (STATUS_LENGTH - len(STATUS_CHANGED)) * ' ' + STATUS_CHANGED + termcolors.ENDC,
    #
    STATUS_UNKNOWN: termcolors.FAIL + (STATUS_LENGTH - len(STATUS_UNKNOWN)) * ' ' + STATUS_UNKNOWN + termcolors.ENDC,
}


def module_status_head():
    rv = termcolors.BOLD + termcolors.UNDERLINE + 'Status of the unittests for pylibs:\n' + termcolors.ENDC
    LINE_FORMAT = '%25s%' + str(STATUS_LENGTH) + 's%' + str(STATUS_LENGTH) + 's%' + str(STATUS_LENGTH) + 's%' + str(STATUS_LENGTH) + 's%' + str(STATUS_LENGTH) + 's%' + str(STATUS_LENGTH) + 's\n'
    rv += termcolors.BOLD + termcolors.HEADER + LINE_FORMAT % (
        'Library',
        'UT-Status',
        'DOC-Status',
        'Versions',
        'UT-Coverage',
        'SPEC-Status',
        'GIT-Status',
    )
    rv += (25 + 6 * STATUS_LENGTH) * '-' + '\n' + termcolors.ENDC
    return rv


def module_status_line(module_folder):
    rv = '%25s%s%s%s%s%s%s\n' % (
        os.path.basename(module_folder) + ':',
        STR_STATUS.get(module_unittest_status(module_folder), STATUS_UNKNOWN),
        STR_STATUS.get(module_doc_status(module_folder), STATUS_UNKNOWN),
        module_unittest_versions(module_folder),
        module_unittest_coverage(module_folder),
        STR_STATUS.get(module_spec_status(module_folder), STATUS_UNKNOWN),
        STR_STATUS.get(module_git_status(module_folder), STATUS_UNKNOWN),
    )
    return rv


def module_unittest_status(module_folder):
    try:
        with open(os.path.join(module_folder, 'pylibs', os.path.basename(module_folder), '_testresults_', 'unittest.json'), 'r') as fh:
            ut_lib = json.loads(fh.read())
    except IOError:
        return STATUS_MISSING
    else:
        try:
            with open(os.path.join(module_folder, 'unittest', 'testresults', 'unittest.json'), 'r') as fh:
                ut_ut = json.loads(fh.read())
        except IOError:
            return STATUS_UNKNOWN
        else:
            if ut_ut['testobject_information'] != ut_lib['testobject_information'] or ut_ut['unittest_information'] != ut_lib['unittest_information']:
                return STATUS_OLD
            else:
                ut_status = ut_lib.get('testobject_information', {}).get('State', 'unknown')
                if 'released' in ut_status.lower():
                    return STATUS_RELEASED
                elif 'work' in ut_status.lower():
                    return STATUS_IN_WORK
                else:
                    return STATUS_UNKNOWN


def module_unittest_versions(module_folder):
    try:
        with open(os.path.join(module_folder, 'unittest', 'testresults', 'unittest.json'), 'r') as fh:
            ut = json.loads(fh.read())
    except IOError:
        return STR_STATUS[STATUS_UNKNOWN]
    else:
        interpreters = ut.get('testobject_information', '').get('Supported Interpreters')
        interpreters = interpreters.split(',')
        for i in range(len(interpreters)):
            interpreters[i] = interpreters[i].strip()
            interpreters[i] = interpreters[i][6:]
        rv = ', '.join(interpreters)
        return (STATUS_LENGTH - len(rv)) * ' ' + rv


def module_unittest_coverage(module_folder):
    try:
        with open(os.path.join(module_folder, 'unittest', 'testresults', 'unittest.json'), 'r') as fh:
            ut = json.loads(fh.read())
    except IOError:
        return STR_STATUS[STATUS_UNKNOWN]
    else:
        lcov = ut.get('coverage_information', [{}])[0].get('line_coverage')
        bcov = ut.get('coverage_information', [{}])[0].get('branch_coverage')
        if lcov is None or bcov is None:
            return STR_STATUS[STATUS_UNKNOWN]
        elif lcov > 90:
            rv = termcolors.OKGREEN + '%3d%% (%3d%%)' % (lcov, bcov) + termcolors.ENDC
        else:
            rv = termcolors.WARNING + '%3d%% (%3d%%)' % (lcov, bcov) + termcolors.ENDC
        return (STATUS_LENGTH - 11) * ' ' + rv


def module_git_status(module_folder):
    p = subprocess.Popen("git -C %s status" % module_folder, stdout=subprocess.PIPE, shell=True)
    output = p.communicate()[0]
    p_status = p.wait()
    if p_status == 0:
        if b"nichts zu committen" in output and b"um lokale Commits zu publizieren" not in output:
            return STATUS_CLEAN
        else:
            return STATUS_CHANGED
    else:
        return STATUS_UNKNOWN


def module_doc_status(module_folder):
    if os.path.exists(os.path.join(module_folder, 'pylibs', os.path.basename(module_folder), '_docs_', 'index.html')):
        return STATUS_AVAILABLE
    else:
        if os.path.exists(os.path.join(module_folder, 'docs', 'index.rst')):
            return STATUS_IN_WORK
        else:
            return STATUS_MISSING


def module_spec_status(module_folder):
    if os.path.exists(os.path.join(module_folder, 'requirements', 'specification.reqif')):
        try:
            with open(os.path.join(module_folder, 'unittest', 'testresults', 'unittest.json'), 'r') as fh:
                ut = json.loads(fh.read())
                if len(ut['lost_souls']['item_list']) > 0 or len(ut['lost_souls']['testcase_list']) > 0:
                    return STATUS_IN_WORK
                else:
                    return STATUS_CLEAN
        except IOError:
            return STATUS_EXISTS
    else:
        return STATUS_MISSING