"""Provider adapters. Each exposes `complete(system, user, model, **opts) -> ProviderResult`."""
from __future__ import annotations

from dataclasses import dataclass, field


@dataclass(slots=True)
class ProviderResult:
    text: str
    input_tokens: int = 0
    cached_input_tokens: int = 0
    output_tokens: int = 0
    reasoning_tokens: int = 0
    latency_s: float = 0.0
    model: str = ""
    request_id: str = ""
    error: str = ""
    raw: dict = field(default_factory=dict)


def get_provider(name: str, **kwargs):
    if name == "mock":
        from .mock import MockProvider
        return MockProvider(**kwargs)
    if name in ("openai", "openai_mini", "openai_large"):
        from .openai_provider import OpenAIProvider
        return OpenAIProvider(**kwargs)
    if name == "anthropic":
        from .anthropic_provider import AnthropicProvider
        return AnthropicProvider(**kwargs)
    raise ValueError(f"unknown provider {name!r}")