"""Zen/OpenCode provider implementation."""

from typing import Any

from core.anthropic import ReasoningReplayMode, build_base_request_body
from config.settings import Settings
from providers.base import ProviderConfig
from providers.defaults import ZEN_DEFAULT_BASE
from providers.openai_compat import OpenAIChatTransport


class ZenProvider(OpenAIChatTransport):
    """Zen/OpenCode provider using OpenAI-compatible API."""

    def __init__(
        self,
        config: ProviderConfig,
        *,
        settings: Settings,
    ):
        # Zen uses /v1/chat/completions so append /v1 to base URL
        base_url = (config.base_url or ZEN_DEFAULT_BASE).rstrip("/")
        if not base_url.endswith("/v1"):
            base_url = base_url + "/v1"
        super().__init__(
            config,
            provider_name="Zen",
            base_url=base_url,
            api_key=config.api_key,
        )
        self._settings = settings

    def _build_request_body(
        self, request: Any, thinking_enabled: bool | None = None
    ) -> dict:
        """Build request body for Zen API."""
        thinking = self._is_thinking_enabled(request, thinking_enabled)
        reasoning_replay = (
            ReasoningReplayMode.REASONING_CONTENT
            if thinking
            else ReasoningReplayMode.DISABLED
        )
        return build_base_request_body(
            request,
            reasoning_replay=reasoning_replay,
        )