"""Admin-token-authenticated calls to sub2api.

Used for:
- User lifecycle sync (create / update / delete / lookup)
- Reading a user's API keys and usage (admin endpoints only support reads)
"""
from __future__ import annotations

from typing import Any

from app.integrations.sub2api.client import admin_request


# ── Users ─────────────────────────────────────────────────────────────

async def create_user(
    *,
    email: str,
    password: str,
    username: str = "",
    notes: str = "",
    balance: float = 0,
    concurrency: int = 0,
    allowed_groups: list[int] | None = None,
) -> dict[str, Any]:
    return await admin_request(
        "POST",
        "/admin/users",
        json={
            "email": email,
            "password": password,
            "username": username,
            "notes": notes,
            "balance": balance,
            "concurrency": concurrency,
            "allowed_groups": allowed_groups or [],
        },
    )


async def update_user(user_id: int, **fields: Any) -> dict[str, Any]:
    """Partial update. Only non-None fields are sent."""
    payload = {k: v for k, v in fields.items() if v is not None}
    return await admin_request("PUT", f"/admin/users/{user_id}", json=payload)


async def delete_user(user_id: int) -> None:
    await admin_request("DELETE", f"/admin/users/{user_id}")


async def get_user(user_id: int) -> dict[str, Any]:
    return await admin_request("GET", f"/admin/users/{user_id}")


async def find_user_by_email(email: str) -> dict[str, Any] | None:
    data = await admin_request(
        "GET",
        "/admin/users",
        params={"search": email, "page": 1, "page_size": 5},
    )
    items = (data or {}).get("items") or []
    for item in items:
        if (item.get("email") or "").lower() == email.lower():
            return item
    return None


# ── API Keys (read-only from admin side) ──────────────────────────────

async def list_user_api_keys(
    user_id: int,
    *,
    page: int = 1,
    page_size: int = 20,
    sort_by: str = "created_at",
    sort_order: str = "desc",
) -> dict[str, Any]:
    return await admin_request(
        "GET",
        f"/admin/users/{user_id}/api-keys",
        params={
            "page": page,
            "page_size": page_size,
            "sort_by": sort_by,
            "sort_order": sort_order,
        },
    )


# ── Usage (admin view per user) ───────────────────────────────────────

async def get_user_usage_stats(user_id: int, period: str = "month") -> dict[str, Any]:
    return await admin_request(
        "GET",
        f"/admin/users/{user_id}/usage",
        params={"period": period},
    )