"""
# SPDX-License-Identifier: GPL-2.0
tdc_helper.py - tdc helper functions

Copyright (C) 2017 Lucas Bates <lucasb@mojatatu.com>
"""

def get_categorized_testlist(alltests, ucat):
    """ Sort the master test list into categories. """
    testcases = dict()

    for category in ucat:
        testcases[category] = list(filter(lambda x: category in x['category'], alltests))

    return(testcases)


def get_unique_item(lst):
    """Return unique items while preserving original order."""
    if len(lst) > 1:
        return list(dict.fromkeys(lst))
    else:
        return lst


def get_test_categories(alltests):
    """ Discover all unique test categories present in the test case file. """
    ucat = []
    for t in alltests:
        ucat.extend(get_unique_item(t['category']))
        ucat = get_unique_item(ucat)
    return ucat

def list_test_cases(testlist):
    """ Print IDs and names of all test cases. """
    for curcase in testlist:
        print(curcase['id'] + ': (' + ', '.join(curcase['category']) + ") " + curcase['name'])


def list_categories(testlist):
    """Show all unique categories present in the test cases."""
    categories = set()
    for t in testlist:
        if 'category' in t:
            categories.update(t['category'])

    print("Available categories:")
    print(", ".join(sorted(categories)))
    print("")


def print_list(cmdlist):
    """ Print a list of strings prepended with a tab. """
    for l in cmdlist:
        if (type(l) == list):
            print("\t" + str(l[0]))
        else:
            print("\t" + str(l))


def print_sll(items):
    print("\n".join(str(s) for s in items))


def print_test_case(tcase):
    """ Pretty-printing of a given test case. """
    print('\n==============\nTest {}\t{}\n'.format(tcase['id'], tcase['name']))
    for k in tcase.keys():
        if (isinstance(tcase[k], list)):
            print(k + ":")
            print_list(tcase[k])
        else:
            if not ((k == 'id') or (k == 'name')):
                print(k + ": " + str(tcase[k]))