# ============================================================
# 内置算法库注册表黄金测试（矩阵 86 行 · 方向 E）
# 覆盖：注册/查询、元数据完整（A-E 分类）、健康检查、版本查询、随机种子
# ============================================================
from __future__ import annotations

import pytest

from server.agent_core.algolib import (
    CATEGORY_LABELS,
    AlgorithmManifest,
    AlgorithmRegistry,
    get_algolib,
    reset_algolib_registry,
)


def _registry() -> AlgorithmRegistry:
    reset_algolib_registry()
    return get_algolib()


def test_register_query_roundtrip():
    """注册→查询→更新（upsert）→注销 全链路。"""
    reg = _registry()
    manifest = {
        "algo_id": "opt.grid_search",
        "name": "网格搜索调参",
        "category": "C",
        "description": "候选网格枚举（黄金测试资产）",
        "scale_limit": "<=1k 工单",
        "time_budget": "分钟级",
        "input_schema": {"grid": "dict"},
        "output_schema": {"best": "dict"},
        "golden_tests": ["tests/golden/test_param_opt.py"],
        "deterministic": True,
        "version": "1.0",
    }
    reg.register(manifest)
    got = reg.get("opt.grid_search")
    assert got is not None
    assert got["algo_id"] == "opt.grid_search"
    assert got["category"] == "C"
    # 查询：类别 + 关键词
    hits = reg.query(category="C", keywords="网格")
    assert any(h["algo_id"] == "opt.grid_search" for h in hits)
    assert not reg.query(category="B", keywords="网格")
    # 重复注册 = upsert（版本升级）
    reg.register({**manifest, "version": "2.0"})
    assert reg.get("opt.grid_search")["version"] == "2.0"
    # 注销
    assert reg.unregister("opt.grid_search") is True
    assert reg.get("opt.grid_search") is None
    assert reg.unregister("opt.grid_search") is False


def test_register_rejects_incomplete_metadata():
    """元数据不完整 / 非确定性缺种子 注册必须拒绝。"""
    reg = _registry()
    with pytest.raises(ValueError):
        reg.register({"algo_id": "bad", "name": "缺类别"})
    with pytest.raises(ValueError):
        reg.register({"algo_id": "bad2", "name": "非确定性无种子",
                      "category": "C", "deterministic": False})


def test_builtin_catalog_metadata_complete_and_a_e_cover():
    """内置目录：A-E 五类齐全，每条元数据完整（名称/适用条件/schema/版本/测试/种子）。"""
    reg = _registry()
    items = reg.list()
    assert len(items) >= 10
    for m in items:
        problems = AlgorithmManifest(**m).validate_manifest()
        assert problems == [], f"{m['algo_id']} 元数据不完整: {problems}"
    assert set(CATEGORY_LABELS) == {"A", "B", "C", "D", "E"}
    for cat in "ABCDE":
        assert any(x["category"] == cat for x in items), f"缺 {cat} 类资产"
    ids = {x["algo_id"] for x in items}
    # 关键内置资产在位：A 规则 / B 精确 / C 元启发 / D ML 目录 / E 集成与评估链
    assert {"rule.delivery_first", "rule.comprehensive"} <= ids
    assert "cp_sat" in ids
    assert "ga" in ids
    assert "ml.worktime_regression" in ids
    assert {"hybrid", "eval.sensitivity_tornado", "opt.parameter_optimizer"} <= ids
    # 非确定性算法都带随机种子（复现锚点）
    for m in items:
        if not m["deterministic"]:
            assert m["random_seed"] is not None, m["algo_id"]


def test_health_check_ok_for_ready_and_fail_for_catalog_only():
    """健康检查：可用内置算法 ok，目录资产如实报未就绪，自定义探针生效。"""
    reg = _registry()
    by_id = {h["algo_id"]: h for h in reg.health()}
    assert by_id["cp_sat"]["ok"] is True
    assert by_id["rule.delivery_first"]["ok"] is True
    assert by_id["eval.sensitivity_tornado"]["ok"] is True
    assert by_id["milp"]["ok"] is False            # 未落地资产如实报告
    # 自定义健康探针（健康/不健康）
    reg.register({"algo_id": "test.ok", "name": "健康算法", "category": "B",
                  "health_fn": lambda: {"ok": True, "detail": "ready"}})
    reg.register({"algo_id": "test.flaky", "name": "易挂算法", "category": "B",
                  "health_fn": lambda: {"ok": False, "detail": "license expired"}})
    assert reg.health("test.ok")[0]["ok"] is True
    assert reg.health("test.flaky")[0]["ok"] is False
    # 历史记录与未知 id
    assert reg.history("test.ok")
    assert reg.health("no.such.algo") == []


def test_version_query_and_random_seed_service():
    """版本查询 + 随机种子服务（GA 等非确定性算法复现锚点）。"""
    reg = _registry()
    v = reg.version("rule.delivery_first")
    assert v is not None and v["version"] == "1.0"
    assert v["regen_strategy"] in ("llm", "manual", "hybrid")
    assert reg.version("no.such") is None
    # 升级版本后查询到新版本
    reg.register({"algo_id": "rule.delivery_first", "name": "EDD 最早交期",
                  "category": "A", "version": "2.1", "regen_strategy": "hybrid"})
    assert reg.version("rule.delivery_first")["version"] == "2.1"
    # 随机种子：确定性算法返回声明种子（缺省 0），非确定性返回稳定种子
    assert reg.next_seed("ga") == 20260802
    assert reg.next_seed("rule.delivery_first") == 0
    assert isinstance(reg.next_seed("no.such"), int)