"""task-166 HTTP 客户端契约盘点测试。

对应 plan 10 任务 166 的 8 条用例：
1. test_contract_table_all_clients  全客户端覆盖
2. test_timeouts_listed             超时现状
3. test_retry_listed                重试现状
4. test_idempotency_listed          幂等性标注
5. test_jdk_limits_noted            平台限制
6. test_doc_committed               文档存在
7. test_no_code_change              零代码变更
8. test_repeatable                  可复查
"""

from __future__ import annotations

import json
import subprocess
import unittest

from http_client_audit import (
    REPO_ROOT,
    extract_client_sites,
    extract_timeout_configs,
    scan,
)

DOC_PATH = REPO_ROOT / "docs" / "http-client-contract-audit.md"


class HttpClientAuditTest(unittest.TestCase):
    def test_contract_table_all_clients(self):
        configs = extract_timeout_configs()
        self.assertGreaterEqual(len(configs), 4, "超时/重试配置字段必须齐全")
        classes = {c["config_class"] for c in configs}
        self.assertTrue(
            any("Transient" in name or "Storage" in name for name in classes),
            "存储客户端配置存在",
        )
        self.assertTrue(
            any("SimilarAsin" in name or "ImageVideo" in name for name in classes),
            "LLM/图片客户端配置存在",
        )

    def test_timeouts_listed(self):
        fields = {c["field"] for c in extract_timeout_configs()}
        self.assertTrue(any("connectTimeout" in f for f in fields), "connect 超时缺失")
        self.assertTrue(any("readTimeout" in f for f in fields), "read 超时缺失")
        self.assertTrue(any("writeTimeout" in f for f in fields), "write 超时缺失")
        self.assertTrue(any("callTimeout" in f for f in fields), "call 超时缺失")

    def test_retry_listed(self):
        fields = {c["field"] for c in extract_timeout_configs()}
        self.assertTrue(any("Retry" in f for f in fields), "重试配置缺失")

    def test_idempotency_listed(self):
        sites = extract_client_sites()
        self.assertGreater(len(sites), 0, "客户端配置调用点必须记录")

    def test_jdk_limits_noted(self):
        sites = extract_client_sites()
        self.assertTrue(
            any(
                "HttpClient" in s["snippet"] or "newBuilder" in s["snippet"]
                for s in sites
            ),
            "JDK HttpClient 使用点必须记录",
        )

    def test_doc_committed(self):
        self.assertTrue(DOC_PATH.is_file(), f"契约表文档缺失: {DOC_PATH}")
        text = DOC_PATH.read_text(encoding="utf-8")
        self.assertIn("超时", text)
        self.assertIn("重试", text)
        self.assertIn("幂等", text)

    def test_no_code_change(self):
        changed = subprocess.run(
            ["git", "diff", "--name-only", "HEAD", "--", "backend-java/src"],
            cwd=REPO_ROOT,
            capture_output=True,
            text=True,
            check=True,
        ).stdout.strip()
        self.assertEqual(changed, "", f"生产代码被改动: {changed}")

    def test_repeatable(self):
        first = json.dumps(scan().to_dict(), sort_keys=True)
        second = json.dumps(scan().to_dict(), sort_keys=True)
        self.assertEqual(first, second, "盘点可复查")


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