import json
import unittest
from types import SimpleNamespace
from unittest.mock import Mock

from core.douyu.activity_client import DouyuActivityClient, DouyuActivityError


class XpdExchangeTests(unittest.TestCase):
    def setUp(self):
        self.client = DouyuActivityClient(
            'acf_uid=100; acf_stk=stk; acf_ltkid=ltkid',
        )

    def test_exchange_uses_fresh_embed_authorization_and_point_price(self):
        self.client._request = Mock(return_value=SimpleNamespace(
            text='var buyInfo={"ret":"0","msg":"ok","serial":"order-1","newBalance":88};',
        ))

        result = self.client.xpd_exchange_goods(
            embed_query={
                'gameId': 'cjm', 'actId': '46195', 'appId': 'bp_cf',
                'livePlatId': 'douyu', 'code': 'fresh-code',
                'timestamp': '123', 'v': '2.0', 'sig': 'fresh-signature',
            },
            act_id='46195',
            rid='9263298',
            commodity_id='goods-1',
            price=1200,
            picture='https://cdn.example/item.jpg',
            pay_type=1,
            action_id='46195',
        )

        self.assertEqual(result['serial'], 'order-1')
        self.assertEqual(result['new_balance'], 88)
        call = self.client._request.call_args
        self.assertEqual(call.args[:2], ('get', self.client.XPD_LIVE_BUY_API))
        params = call.kwargs['params']
        self.assertEqual(params['code'], 'fresh-code')
        self.assertEqual(params['sig'], 'fresh-signature')
        self.assertEqual(params['propid'], 'goods-1')
        self.assertEqual(params['paytype'], '1')
        self.assertEqual(json.loads(params['appext']), {
            'user_price': 1200,
            'sGoodsPic': 'https://cdn.example/item.jpg',
            'paytype': 1,
        })

    def test_exchange_surfaces_daoju_failure_message(self):
        self.client._request = Mock(return_value=SimpleNamespace(
            text='var buyInfo={"ret":"-1","msg":"点券不足"};',
        ))

        with self.assertRaisesRegex(DouyuActivityError, '点券不足'):
            self.client.xpd_exchange_goods(
                embed_query={'code': 'fresh-code'},
                act_id='46195',
                rid='9263298',
                commodity_id='goods-1',
                price=1200,
            )

    def test_list_goods_requests_and_preserves_inventory(self):
        self.client._request = Mock(return_value=SimpleNamespace(
            text=(
                'var recommend={"data":{"client_data":{"itemsdetail":[{'
                '"iGoodsId":"goods-1","sGoodsName":"测试商品","iPrice":"6800",'
                '"iJb2Price":"0","iGoodsLeft":"0"}]}}};'
            ),
        ))

        result = self.client.xpd_list_goods(
            embed_query={}, act_id='46195', openid='openid', roleid='roleid',
        )

        self.assertEqual(result['goods'][0]['price'], 6800)
        self.assertEqual(result['goods'][0]['goods_left'], 0)
        params = self.client._request.call_args.kwargs['params']
        self.assertEqual(params['excludeFields'], 'iCategoryId_76')
        self.assertNotIn('category', params)

    def test_list_goods_fetches_every_page_and_deduplicates_goods(self):
        first_page = [
            {'iGoodsId': f'goods-{index}', 'sGoodsName': f'商品 {index}'}
            for index in range(10)
        ]
        second_page = [
            {'iGoodsId': 'goods-9', 'sGoodsName': '重复商品'},
            {'iGoodsId': 'goods-10', 'sGoodsName': '商品 10'},
        ]
        self.client._request = Mock(side_effect=[
            SimpleNamespace(text=f'var recommend={{"errcode":0,"data":{{"client_data":{{"itemsdetail":{json.dumps(first_page)}}}}}}};'),
            SimpleNamespace(text=f'var recommend={{"errcode":0,"data":{{"client_data":{{"itemsdetail":{json.dumps(second_page)}}}}}}};'),
        ])

        result = self.client.xpd_list_goods(
            embed_query={}, act_id='46195', openid='openid', roleid='roleid',
        )

        self.assertEqual(len(result['goods']), 11)
        self.assertEqual([item['commodity_id'] for item in result['goods']][-1], 'goods-10')
        self.assertEqual(self.client._request.call_count, 2)
        first_params = self.client._request.call_args_list[0].kwargs['params']
        second_params = self.client._request.call_args_list[1].kwargs['params']
        self.assertEqual((first_params['page_begin'], first_params['page_num']), ('0', '1'))
        self.assertEqual((second_params['page_begin'], second_params['page_num']), ('10', '2'))


if __name__ == '__main__':
    unittest.main()