"""测试用例能力 — sd_test_cases 的执行状态机语义化迁移（通用、产线无关）。

定位：用例 CRUD 走 xls2ui 生成的端点；本模块只做「执行结果状态流转」——
每个迁移 CAS 原子（防并发/越权）+ 租户隔离 + 审计。

用例的执行状态机/流转规则在 test-case skill 里（LLM 读 skill 判断合法性）；本模块只固化操作原语。
失败用例联动建 Bug（case_id → sd_bugs.case_id）是规范，见 test-case skill。

角色规范：role 参数用 agent.{role}（无前缀自动补 agent.）；人角色用 {orgtype}.{role}。

scope 约定：sd_test_cases 无 project_id/iteration_id 列，用 plan_id 做范围校验（CAS 的 WHERE 里带 plan_id）。
"""

import logging
from sqlor.dbpools import DBPools
from appPublic.uniqueID import getID
from .audit import record_audit

DBNAME = "pipeline"
logger = logging.getLogger("pipeline.test_case_capability")

TABLE = "sd_test_cases"

# 测试用例执行状态（SDLC 默认，状态机语义见 test-case skill）
S_PENDING = "pending"      # 待执行
S_PASS = "pass"            # 通过
S_FAIL = "fail"            # 失败
S_BLOCKED = "blocked"      # 阻塞
S_SKIPPED = "skipped"      # 跳过


def _get_db():
    db = DBPools()
    if not db.databases:
        from appPublic.jsonConfig import getConfig
        config = getConfig()
        if config.databases:
            db.databases = config.databases
    return db, DBNAME


def _normalize_role(role):
    """角色规范：agent 角色补 agent. 前缀；人角色 {orgtype}.{role} 保留原样。"""
    role = (role or "").strip()
    if not role:
        return ""
    if "." in role:
        return role
    return f"agent.{role}"


async def _execute_transition(case_id, plan_id, from_states, to_state, action,
                              actual_result="", executed_by="", duration_ms=None,
                              who=None, agent_id=None):
    """执行结果 CAS 迁移 + 审计（记录执行人/实际结果/执行时间）。返回 (ok, message)。"""
    if not case_id or not plan_id:
        return False, "缺少 case_id 或 plan_id"
    if isinstance(from_states, str):
        from_states = [from_states]
    from_in = ",".join(f"${{s{i}}}$" for i in range(len(from_states)))
    params = {"to": to_state, "cid": case_id, "pid": plan_id,
              "ar": actual_result or '', "eb": executed_by or ''}
    for i, s in enumerate(from_states):
        params[f"s{i}"] = s
    if duration_ms is not None:
        try:
            params["dur"] = int(duration_ms)
            dur_set = ", duration_ms=${dur}$"
        except (TypeError, ValueError):
            dur_set = ""
    else:
        dur_set = ""

    db, dbname = _get_db()
    async with db.sqlorContext(dbname) as sor:
        await sor.sqlExe(
            f"UPDATE {TABLE} SET status=${{to}}$, actual_result=${{ar}}$, "
            f"executed_by=${{eb}}$, executed_at=NOW(){dur_set} "
            f"WHERE id=${{cid}}$ AND plan_id=${{pid}}$ AND status IN ({from_in})",
            params)
        recs = await sor.R(TABLE, {'id': case_id})
        await sor.sqlExe("COMMIT", {})
        if not recs:
            return False, "用例不存在"
        cur = getattr(recs[0], 'status', '')
        if cur != to_state:
            return False, f"状态迁移失败(CAS): 期望 from={from_states} 实际 status={cur}"
        await record_audit(plan_id, TABLE, case_id, action,
                           from_state="|".join(from_states), to_state=to_state,
                           who=who, agent_id=agent_id, detail=actual_result, sor=sor)
        return True, to_state


async def create_case(plan_id, case_name, case_type="functional", priority="P2",
                      precondition="", steps="", expected_result="",
                      created_by="", who=None, agent_id=None):
    """创建用例：新建记录，status=pending。返回 (ok, case_id_or_message)。"""
    if not plan_id:
        return False, "缺少 plan_id"
    if not case_name or not case_name.strip():
        return False, "缺少 case_name"
    db, dbname = _get_db()
    async with db.sqlorContext(dbname) as sor:
        cid = getID()
        await sor.C(TABLE, {
            'id': cid,
            'plan_id': plan_id,
            'case_name': case_name.strip(),
            'case_type': case_type or 'functional',
            'priority': priority or 'P2',
            'precondition': precondition or '',
            'steps': steps or '',
            'expected_result': expected_result or '',
            'status': S_PENDING,
        })
        await record_audit(plan_id, TABLE, cid, 'create',
                           to_state=S_PENDING, who=_normalize_role(who),
                           agent_id=agent_id, sor=sor)
        logger.info("create_case: %s plan=%s", cid, plan_id)
        return True, cid


async def pass_case(case_id, plan_id, actual_result="", executed_by="",
                    duration_ms=None, who=None, agent_id=None):
    """用例通过：pending/fail → pass。"""
    return await _execute_transition(case_id, plan_id, [S_PENDING, S_FAIL], S_PASS, 'pass',
                                     actual_result=actual_result, executed_by=executed_by,
                                     duration_ms=duration_ms, who=who, agent_id=agent_id)


async def fail_case(case_id, plan_id, actual_result="", executed_by="",
                    duration_ms=None, who=None, agent_id=None):
    """用例失败：pending/pass → fail（失败应联动建 Bug，规范见 test-case skill）。"""
    return await _execute_transition(case_id, plan_id, [S_PENDING, S_PASS], S_FAIL, 'fail',
                                     actual_result=actual_result, executed_by=executed_by,
                                     duration_ms=duration_ms, who=who, agent_id=agent_id)


async def block_case(case_id, plan_id, actual_result="", executed_by="",
                     who=None, agent_id=None):
    """用例阻塞：pending → blocked（因环境/依赖无法执行）。"""
    return await _execute_transition(case_id, plan_id, [S_PENDING], S_BLOCKED, 'block',
                                     actual_result=actual_result, executed_by=executed_by,
                                     who=who, agent_id=agent_id)


async def skip_case(case_id, plan_id, actual_result="", executed_by="",
                    who=None, agent_id=None):
    """用例跳过：pending → skipped（有意不测，须注明原因）。"""
    return await _execute_transition(case_id, plan_id, [S_PENDING], S_SKIPPED, 'skip',
                                     actual_result=actual_result, executed_by=executed_by,
                                     who=who, agent_id=agent_id)


async def set_case_state(case_id, plan_id, from_state, to_state,
                         who=None, agent_id=None, detail=None):
    """通用 CAS 状态迁移兜底（跨产线自定义状态机用）。"""
    return await _execute_transition(case_id, plan_id, [from_state], to_state, 'set_state',
                                     actual_result=detail or '', who=who, agent_id=agent_id)


async def list_cases(plan_id, status=None, limit=100) -> list:
    """列出用例（可按状态过滤）。"""
    db, dbname = _get_db()
    async with db.sqlorContext(dbname) as sor:
        conditions = ["plan_id=${pid}$"]
        params = {"pid": plan_id}
        if status:
            conditions.append("status=${status}$")
            params["status"] = status
        where = " AND ".join(conditions)
        try:
            limit = int(limit)
        except (TypeError, ValueError):
            limit = 100
        sql = (f"SELECT * FROM {TABLE} WHERE {where} "
               f"ORDER BY created_at ASC LIMIT {limit}")
        recs = await sor.sqlExe(sql, params)
        # 释放 SELECT 元数据锁
        await sor.sqlExe("COMMIT", {})
        result = []
        for rec in (recs or []):
            result.append(_rec_to_dict(rec))
        return result


def _rec_to_dict(rec):
    """把 sqlor 记录对象转成 dict（sqlor 行是 DictObject，必须 dict(rec) 取列）。"""
    if isinstance(rec, dict):
        return dict(rec)
    try:
        return dict(rec)
    except (TypeError, ValueError):
        if hasattr(rec, 'to_dict'):
            try:
                return rec.to_dict()
            except Exception:
                pass
        return {}