# ============================================================
# 排产引擎包（moduleId: server-engines, 可重生 ✅）
# RULE：CP = OR-Tools；HYBRID = RULE 热启动 + CP 改良；GA = 遗传算法；
# NSGA2 = NSGA-II 多目标遗传（矩阵 85，round-40 方向 U）
# ============================================================
from server.engines.base import EngineParams, ISchedulingEngine
from server.engines.cp_engine import CpSatEngine, HybridEngine
from server.engines.external_engine import ExternalEngine
from server.engines.ga_engine import GeneticAlgorithmEngine
from server.engines.nsga2_engine import NSGA2Engine, nsga2_defaults, solve_nsga2
from server.engines.pool_engine import PoolEngine
from server.engines.rule_engine import RuleEngine

__all__ = [
    "CpSatEngine",
    "EngineParams",
    "ExternalEngine",
    "GeneticAlgorithmEngine",
    "HybridEngine",
    "ISchedulingEngine",
    "NSGA2Engine",
    "PoolEngine",
    "RuleEngine",
    "get_engine",
    "nsga2_defaults",
    "solve_nsga2",
]


def get_engine(engine_type: str) -> ISchedulingEngine:
    """引擎工厂：RULE / CP / GA / HYBRID / NSGA2 / EXTERNAL。"""
    kind = (engine_type or "RULE").upper()
    if kind.startswith("EXTERNAL"):
        skill_id = None
        if ":" in engine_type:
            skill_id = engine_type.split(":", 1)[1].strip() or None
        return ExternalEngine(skill_id=skill_id)
    if kind == "CP":
        return CpSatEngine()
    if kind == "HYBRID":
        return HybridEngine()
    if kind == "GA":
        return GeneticAlgorithmEngine()
    if kind == "NSGA2":
        return NSGA2Engine()
    return RuleEngine(requested_type="RULE")