"""``api/workflow.py`` 读侧拼装：运行期状态 merge 到静态 step。"""

from __future__ import annotations

from kilostar.api.workflow import _merge_runtime_status


def test_merge_marks_pending_when_no_log():
    """没有任何运行日志时，所有 step 默认 pending。"""
    work_link = [
        {"step": 1, "name": "s1", "node": "skill_individual", "action": "a"},
        {"step": 2, "name": "s2", "node": "consciousness_node", "action": "b"},
    ]
    merged = _merge_runtime_status(work_link, [])
    assert [s["status"] for s in merged] == ["pending", "pending"]
    # 静态字段保留
    assert merged[0]["name"] == "s1"
    assert merged[1]["node"] == "consciousness_node"


def test_merge_uses_latest_status_per_step():
    """同一 step 多条日志时取最后一条（working → completed）。"""
    work_link = [
        {"step": 1, "name": "s1", "node": "skill_individual", "action": "a"},
    ]
    workflow_log = [
        {"0": ["2026-01-01T00:00:00", "working", "开始"]},
        {"0": ["2026-01-01T00:00:05", "completed", "成功"]},
    ]
    merged = _merge_runtime_status(work_link, workflow_log)
    assert merged[0]["status"] == "completed"


def test_merge_mixed_statuses():
    """多 step 各自取自己最新状态；无日志的保持 pending。"""
    work_link = [
        {"step": 1, "name": "s1", "node": "skill_individual", "action": "a"},
        {"step": 2, "name": "s2", "node": "skill_individual", "action": "b"},
        {"step": 3, "name": "s3", "node": "skill_individual", "action": "c"},
    ]
    workflow_log = [
        {"0": ["t", "completed", "ok"]},
        {"1": ["t", "failed", "boom"]},
    ]
    merged = _merge_runtime_status(work_link, workflow_log)
    assert [s["status"] for s in merged] == ["completed", "failed", "pending"]


def test_merge_falls_back_to_position_index_without_step_field():
    """step 没有 step 字段时按位置索引匹配日志。"""
    work_link = [
        {"name": "s1", "node": "skill_individual", "action": "a"},
        {"name": "s2", "node": "skill_individual", "action": "b"},
    ]
    workflow_log = [
        {"1": ["t", "completed", "ok"]},
    ]
    merged = _merge_runtime_status(work_link, workflow_log)
    assert merged[0]["status"] == "pending"
    assert merged[1]["status"] == "completed"


def test_merge_ignores_malformed_log_entries():
    """脏日志（非 dict / payload 不是数组 / key 不是数字）不应炸。"""
    work_link = [
        {"step": 1, "name": "s1", "node": "skill_individual", "action": "a"},
    ]
    workflow_log = [
        "not-a-dict",
        {"not-an-int": ["t", "completed", "x"]},
        {"0": "not-a-list"},
        {"0": ["t", "working"]},
    ]
    merged = _merge_runtime_status(work_link, workflow_log)
    assert merged[0]["status"] == "working"


def test_merge_handles_empty_work_link():
    assert _merge_runtime_status([], []) == []
    assert _merge_runtime_status(None, None) == []