"""Parse Xfyun's three-part credential from ProviderCredential.api_key."""

from __future__ import annotations

import json
from dataclasses import dataclass


@dataclass(frozen=True)
class XfyunCredential:
    app_id: str
    api_key: str
    api_secret: str


def parse_xfyun_credential(value: str) -> XfyunCredential:
    """Accept JSON in the existing api_key column.

    Example:
        {"appId":"...","apiKey":"...","apiSecret":"..."}
    """
    try:
        payload = json.loads(value)
    except json.JSONDecodeError as exc:
        raise ValueError(
            'Xfyun API Key must be JSON: {"appId":"...","apiKey":"...","apiSecret":"..."}'
        ) from exc

    if not isinstance(payload, dict):
        raise ValueError("Xfyun API Key JSON must be an object")

    credential = XfyunCredential(
        app_id=str(payload.get("appId") or payload.get("app_id") or "").strip(),
        api_key=str(payload.get("apiKey") or payload.get("api_key") or "").strip(),
        api_secret=str(
            payload.get("apiSecret") or payload.get("api_secret") or ""
        ).strip(),
    )
    if not credential.app_id or not credential.api_key or not credential.api_secret:
        raise ValueError("Xfyun API Key JSON requires appId, apiKey, and apiSecret")
    return credential


def websocket_url(value: str, default: str) -> str:
    url = (value or default).strip()
    if url.startswith("https://"):
        return f"wss://{url.removeprefix('https://')}"
    if url.startswith("http://"):
        return f"ws://{url.removeprefix('http://')}"
    return url


def is_super_tts(model_id: str, api_url: str) -> bool:
    model = model_id.lower().replace("-", "_")
    return "super" in model or "/private/" in api_url.lower()


def xfyun_language(value: str) -> str:
    normalized = (value or "zh_cn").lower().replace("-", "_")
    return {"zh": "zh_cn", "en": "en_us"}.get(normalized, normalized)


def xfyun_speed(value: float) -> int:
    """Reuse the existing OpenAI-style speed field where 1.0 means normal."""
    return max(0, min(100, round(value * 50 if value <= 4 else value)))