# ============================================================
# 排产引擎包（moduleId: server-engines, 可重生 ✅）
# RULE；CP = OR-Tools；HYBRID = RULE 热启动 + CP 改良；GA 仍 RULE 代跑留痕
# ============================================================
from server.engines.base import EngineParams, ISchedulingEngine
from server.engines.rule_engine import RuleEngine
from server.engines.pool_engine import PoolEngine
from server.engines.cp_engine import CpSatEngine, HybridEngine
from server.engines.external_engine import ExternalEngine

__all__ = [
    "EngineParams", "ISchedulingEngine", "RuleEngine", "PoolEngine",
    "CpSatEngine", "HybridEngine", "ExternalEngine", "get_engine",
]


def get_engine(engine_type: str) -> ISchedulingEngine:
    """引擎工厂：CP / HYBRID / EXTERNAL；GA 仍由 RULE 代跑并留 engineType。"""
    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()
    return RuleEngine(requested_type=kind if kind in ("RULE", "GA") else "RULE")