# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.

from __future__ import print_function

import json


def report_discovered(tests, parents, pretty=False, simple=False,
                      _send=print, **_ignored):
    """Serialize the discovered tests and write to stdout."""
    if simple:
        data = [{
            'id': test.id,
            'name': test.name,
            'testroot': test.path.root,
            'relfile': test.path.relfile,
            'lineno': test.lineno,
            'testfunc': test.path.func,
            'subtest': test.path.sub or None,
            'markers': test.markers or [],
            } for test in tests]
    else:
        byroot = {}
        for parent in parents:
            rootdir = parent.name if parent.root is None else parent.root
            try:
                root = byroot[rootdir]
            except KeyError:
                root = byroot[rootdir] = {
                        'id': rootdir,
                        'parents': [],
                        'tests': [],
                        }
            if not parent.root:
                root['id'] = parent.id
                continue
            root['parents'].append({
                'id': parent.id,
                'kind': parent.kind,
                'name': parent.name,
                'parentid': parent.parentid,
                })
        for test in tests:
            # We are guaranteed that the parent was added.
            root = byroot[test.path.root]
            testdata = {
                'id': test.id,
                'name': test.name,
                # TODO: Add a "kind" field
                #  (e.g. "unittest", "function", "doctest")
                'source': test.source,
                'markers': test.markers or [],
                'parentid': test.parentid,
                }
            root['tests'].append(testdata)
        data = [{
            'rootid': byroot[root]['id'],
            'root': root,
            'parents': byroot[root]['parents'],
            'tests': byroot[root]['tests'],
            } for root in sorted(byroot)]

    kwargs = {}
    if pretty:
        # human-formatted
        kwargs = dict(
            sort_keys=True,
            indent=4,
            separators=(',', ': '),
            )
    serialized = json.dumps(data, **kwargs)

    _send(serialized)