"""uiautomator2 采购演练 Adapter 测试；不连接真实手机。"""

import unittest

from src.pdd_device_service import PddDeviceService
from src.pdd_purchase_adapter import PddPurchaseError
from src.pdd_u2_purchase_adapter import U2PddPurchaseAdapter


GOODS_URL = "https://mobile.yangkeduo.com/goods.html?goods_id=753136429979"


def home_xml() -> str:
    return """<hierarchy>
      <node package="com.xunmeng.pinduoduo" bounds="[0,0][1080,2376]">
        <node clickable="true" enabled="true" visible-to-user="true"
              bounds="[500,2100][1080,2328]">
          <node text="立即购买 ¥5.03" enabled="true" visible-to-user="true"
                bounds="[600,2150][1000,2280]"/>
        </node>
      </node>
    </hierarchy>"""


def panel_xml(quantity: int = 1) -> str:
    return f"""<hierarchy>
      <node package="com.xunmeng.pinduoduo" bounds="[0,0][1080,2376]">
        <node text="已选： 黑色 3XL【140-165斤】" bounds="[300,500][1000,560]"/>
        <node content-desc="黑色" selected="true" bounds="[30,900][330,1000]"/>
        <node text="3XL【140-165斤】" selected="true"
              bounds="[40,1200][500,1300]"/>
        <node text="折后¥5.03" bounds="[300,400][600,470]"/>
        <node class="android.widget.EditText" text="{quantity}"
              bounds="[480,700][560,780]"/>
        <node content-desc="减少数量" clickable="true" bounds="[390,700][470,780]"/>
        <node content-desc="增加数量" clickable="true" bounds="[570,700][650,780]"/>
        <node clickable="true" bounds="[0,2181][1080,2328]">
          <node text="提交订单 ¥5.03" bounds="[380,2220][700,2290]"/>
        </node>
      </node>
    </hierarchy>"""


class FakeEditor:
    def __init__(self, device) -> None:
        self.device = device
        self.count = 1

    def set_text(self, value: str) -> None:
        self.device.quantity = int(value)


class FakeDevice:
    def __init__(self, initial_xml: str = "") -> None:
        self.mode = "special" if initial_xml else "home"
        self.special_xml = initial_xml
        self.quantity = 1
        self.clicks = []
        self.opened_urls = []

    def app_current(self):
        return {"package": "com.xunmeng.pinduoduo"}

    def app_start(self, _package):
        pass

    def app_wait(self, _package, timeout=10):
        return True

    def open_url(self, url):
        self.opened_urls.append(url)

    def dump_hierarchy(self):
        if self.mode == "special":
            return self.special_xml
        return home_xml() if self.mode == "home" else panel_xml(self.quantity)

    def click(self, x, y):
        self.clicks.append((x, y))
        self.mode = "panel"

    def __call__(self, **selector):
        if selector == {"className": "android.widget.EditText"}:
            return FakeEditor(self)
        raise AssertionError(f"未预期的 selector: {selector}")


class U2PddPurchaseAdapterTest(unittest.TestCase):
    def _adapter(self, device, calls):
        def select_color_fn(_device, _xml, target, **_kwargs):
            calls.append(("color", target))
            return target == "黑色"

        def select_size_fn(_device, _xml, target, **_kwargs):
            calls.append(("size", target))
            return target == "3XL【140-165斤】"

        return U2PddPurchaseAdapter(
            "USB-001",
            device_service=PddDeviceService(connector=lambda _serial: device),
            sleeper=lambda _seconds: None,
            select_color_fn=select_color_fn,
            select_size_fn=select_size_fn,
        )

    def test_dry_run_reaches_confirmation_without_clicking_submit(self):
        device = FakeDevice()
        calls = []
        adapter = self._adapter(device, calls)

        adapter.open_goods(GOODS_URL)
        goods = adapter.read_state()
        adapter.select_options(
            {"color": "黑色", "size": "3XL【140-165斤】"}
        )
        adapter.set_quantity(2)
        confirmation = adapter.read_state()
        adapter.enter_confirmation()
        adapter.stop_before_submit()
        adapter.close()

        self.assertEqual(goods.page_kind, "goods")
        self.assertEqual(goods.goods_id, "753136429979")
        self.assertEqual(
            confirmation.selected_options,
            {"color": "黑色", "size": "3XL【140-165斤】"},
        )
        self.assertEqual(confirmation.quantity, 2)
        self.assertEqual(confirmation.price_cent, 503)
        self.assertEqual(confirmation.page_kind, "order_confirmation")
        self.assertEqual(calls, [("color", "黑色"), ("size", "3XL【140-165斤】")])
        # 只点击一次商品页采购入口；最终“提交订单”从不点击。
        self.assertEqual(len(device.clicks), 1)

    def test_unsupported_dynamic_option_stops_before_click(self):
        device = FakeDevice()
        adapter = self._adapter(device, [])
        adapter.open_goods(GOODS_URL)

        with self.assertRaises(PddPurchaseError) as raised:
            adapter.select_options({"bundle": "标准版"})

        self.assertEqual(raised.exception.code, "PURCHASE_OPTIONS_UNSUPPORTED")
        self.assertEqual(device.clicks, [])
        adapter.close()

    def test_captcha_stops_without_waiting_or_clicking(self):
        device = FakeDevice(
            '<hierarchy><node package="com.xunmeng.pinduoduo" '
            'text="请完成验证" bounds="[0,0][1080,2376]"/></hierarchy>'
        )
        adapter = self._adapter(device, [])

        with self.assertRaises(PddPurchaseError) as raised:
            adapter.open_goods(GOODS_URL)

        self.assertEqual(raised.exception.code, "PDD_PAGE_CAPTCHA")
        self.assertEqual(device.clicks, [])
        adapter.close()

    def test_invalid_non_pdd_url_is_rejected_before_connect(self):
        device = FakeDevice()
        adapter = self._adapter(device, [])

        with self.assertRaises(PddPurchaseError) as raised:
            adapter.open_goods("https://example.test/goods?goods_id=1")

        self.assertEqual(raised.exception.code, "PURCHASE_GOODS_URL_INVALID")
        self.assertEqual(device.opened_urls, [])


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