# -*- coding:utf-8 -*-
import json
from unittest.mock import MagicMock, patch

import pytest

from dw_base.ds import cli


@patch('dw_base.ds.cli.DSClient')
def test_get_invokes_client_get(MockClient, capsys):
    inst = MagicMock()
    inst.get.return_value = {'code': 0}
    MockClient.return_value = inst

    cli.main(['get', '/projects', '-p', 'pageNo=1', '-p', 'pageSize=10'])

    inst.get.assert_called_once_with(
        '/projects', params={'pageNo': '1', 'pageSize': '10'})
    out = capsys.readouterr().out
    assert json.loads(out) == {'code': 0}


@patch('dw_base.ds.cli.DSClient')
def test_get_o_writes_file(MockClient, tmp_path, capsys):
    """新特性：-o 把 JSON 写文件，stdout 不打，stderr 提示落点。"""
    inst = MagicMock()
    inst.get.return_value = {'code': 0, 'data': 'x'}
    MockClient.return_value = inst

    out_file = tmp_path / 'out.json'
    cli.main(['get', '/projects', '-o', str(out_file)])

    assert json.loads(out_file.read_text(encoding='utf-8')) == {'code': 0, 'data': 'x'}
    captured = capsys.readouterr()
    assert captured.out == ''
    assert '已写到' in captured.err
    assert str(out_file) in captured.err


@patch('dw_base.ds.cli.DSClient')
def test_post_with_json_body(MockClient, capsys):
    inst = MagicMock()
    inst.post.return_value = {'ok': True}
    MockClient.return_value = inst

    cli.main(['post', '/foo', '-j', '{"a":1,"b":"x"}'])

    inst.post.assert_called_once_with('/foo', json_body={'a': 1, 'b': 'x'}, form_data=None)


@patch('dw_base.ds.cli.DSClient')
def test_post_no_body(MockClient, capsys):
    inst = MagicMock()
    inst.post.return_value = {}
    MockClient.return_value = inst

    cli.main(['post', '/foo'])

    inst.post.assert_called_once_with('/foo', json_body=None, form_data=None)


@patch('dw_base.ds.cli.DSClient')
def test_post_with_form_data(MockClient, capsys):
    inst = MagicMock()
    inst.post.return_value = {'ok': True}
    MockClient.return_value = inst

    cli.main(['post', '/foo', '-d', 'name=x', '-d', 'desc=hi'])

    inst.post.assert_called_once_with(
        '/foo', json_body=None, form_data={'name': 'x', 'desc': 'hi'})


def test_post_j_and_d_mutex_exits():
    with pytest.raises(SystemExit):
        cli.main(['post', '/foo', '-j', '{}', '-d', 'k=v'])


def test_no_subcommand_exits():
    with pytest.raises(SystemExit):
        cli.main([])


def test_unknown_subcommand_exits():
    with pytest.raises(SystemExit):
        cli.main(['bogus'])


def test_kv_invalid_format_skipped(capsys):
    """-p 参数无 = 时跳过并 stderr 警告，不 raise。"""
    with patch('dw_base.ds.cli.DSClient') as MockClient:
        inst = MagicMock()
        inst.get.return_value = {}
        MockClient.return_value = inst

        cli.main(['get', '/p', '-p', 'no_equals', '-p', 'k=v'])
        inst.get.assert_called_once_with('/p', params={'k': 'v'})
        assert '需要 k=v 格式' in capsys.readouterr().err