"""LLM gateway — 多供应商路由、Prompt 版本、结构化输出、成本计量、预算保护.

架构文档 §4.3: V1 是进程内包，V2 拆为独立服务。接口按远程调用设计，拆分零成本。
"""

from packages.llm.budget import DailyBudgetGuard, InMemoryCostCounter, RedisCostCounter
from packages.llm.circuit import CircuitBreaker, CircuitBreakerRegistry, CircuitState
from packages.llm.cost import (
    AICallRecord,
    AICallRecorder,
    CompositeAICallRecorder,
    InMemoryAICallRecorder,
    ModelRate,
    NullAICallRecorder,
    PeakAwareRateTable,
    RateResolver,
    RateTable,
    compute_cost_cents,
    is_peak,
)
from packages.llm.errors import (
    AllProvidersFailedError,
    CachePrefixViolationError,
    DailyBudgetExceededError,
    LLMError,
    ProviderError,
    StructuredOutputError,
)
from packages.llm.gateway import LLMGateway
from packages.llm.prompts import PromptRegistry, PromptTemplate, validate_cache_prefix
from packages.llm.routing import SceneRouter, build_scene_configs
from packages.llm.types import Completion, Message, PromptRef, Scene, SceneConfig, Usage

__all__ = [
    "AICallRecord",
    "AICallRecorder",
    "AllProvidersFailedError",
    "CachePrefixViolationError",
    "CircuitBreaker",
    "CircuitBreakerRegistry",
    "CircuitState",
    "Completion",
    "CompositeAICallRecorder",
    "DailyBudgetExceededError",
    "DailyBudgetGuard",
    "InMemoryAICallRecorder",
    "InMemoryCostCounter",
    "LLMError",
    "LLMGateway",
    "Message",
    "ModelRate",
    "NullAICallRecorder",
    "PeakAwareRateTable",
    "PromptRef",
    "PromptRegistry",
    "PromptTemplate",
    "ProviderError",
    "RateResolver",
    "RateTable",
    "RedisCostCounter",
    "Scene",
    "SceneConfig",
    "SceneRouter",
    "StructuredOutputError",
    "Usage",
    "build_scene_configs",
    "compute_cost_cents",
    "is_peak",
    "validate_cache_prefix",
]