import json
import unittest
from pathlib import Path
from block import __main__

BASE_DIR = Path(__file__).resolve().parent

data = {
    "hd_score_m1": 1093.0,
    "hd_score_g1": 0.0,
    "cluster_size_users_v2": 1.0,
    "target_connected_30_sum": 0.0,
    "email_cnt": 1.0,
    "rejected_app_count": 0.0,
    "app_dt_day_cnt": 1.0,
    "hd_score_iso_m2": 1001.0,
    "hd_score_g2": 0.0
}


def s4_data(**overrides):
    values = {
        **data,
        "application_customer_type": "Direct New",
        "input_ip_address": "203.0.113.10",
        "input_ip_connection_type": "broadband",
        "input_ip_isp": "local isp",
        "input_ip_distinct_ssn_24h": 3,
        "input_ip_distinct_zip_24h": 2,
    }
    values.update(overrides)
    return values


class TestBlock(unittest.TestCase):
    def test_main_success(self):
        blockResult = __main__(**data)

        self.assertIsInstance(blockResult, dict, "Result should be a dictionary.")
        self.assertIn("hd_score_s1", blockResult, "Result dictionary should contain 'hd_score_s1' if success.")

    def test_s4_triggers_for_direct_new_valid_ip_velocity(self):
        block_result = __main__(**s4_data())

        self.assertEqual(block_result["hd_score_s4"], 1191)

    def test_s4_score_caps_at_1200(self):
        block_result = __main__(**s4_data(
            input_ip_distinct_ssn_24h=30,
            input_ip_distinct_zip_24h=30,
        ))

        self.assertEqual(block_result["hd_score_s4"], 1200)

    def test_s4_requires_direct_new(self):
        block_result = __main__(**s4_data(application_customer_type="Returning"))

        self.assertEqual(block_result["hd_score_s4"], 0)

    def test_s4_rejects_invalid_ip(self):
        block_result = __main__(**s4_data(input_ip_address="0.0.0.0"))

        self.assertEqual(block_result["hd_score_s4"], 0)

    def test_s4_rejects_blocked_connection_type(self):
        block_result = __main__(**s4_data(input_ip_connection_type="Mobile Wireless"))

        self.assertEqual(block_result["hd_score_s4"], 0)

    def test_s4_rejects_blocked_isp(self):
        block_result = __main__(**s4_data(input_ip_isp="Cloudflare Inc."))

        self.assertEqual(block_result["hd_score_s4"], 0)

    def test_s4_requires_distinct_ssn_and_zip_thresholds(self):
        block_result = __main__(**s4_data(input_ip_distinct_zip_24h=1))

        self.assertEqual(block_result["hd_score_s4"], 0)

    def test_s4_schema_contract(self):
        request_schema = json.loads((BASE_DIR / "request_schema.json").read_text())
        response_schema = json.loads((BASE_DIR / "response_schema.json").read_text())

        for field in (
            "application_customer_type",
            "input_ip_address",
            "input_ip_connection_type",
            "input_ip_isp",
        ):
            self.assertEqual(request_schema["properties"][field]["type"], ["string", "null"])

        for field in (
            "input_ip_distinct_ssn_24h",
            "input_ip_distinct_zip_24h",
        ):
            self.assertEqual(request_schema["properties"][field]["type"], ["number", "null"])

        self.assertEqual(response_schema["properties"]["hd_score_s4"]["type"], ["number", "null"])


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