"""Admin-visible change history."""
from __future__ import annotations

import json

from fastapi import APIRouter, Depends, Request

from ..auth import Ctx
from ..deps import get_ctx

router = APIRouter()


@router.get("/v1/audit")
def get_audit(request: Request, ctx: Ctx = Depends(get_ctx), limit: int = 100, since: str | None = None):
    ctx.require_admin(request)
    q = "SELECT id, actor, action, detail_json, created_at FROM audit_log"
    params: list = []
    if since:
        q += " WHERE created_at >= %s"
        params.append(since)
    q += " ORDER BY id DESC LIMIT %s"
    params.append(max(1, min(limit, 500)))
    events = []
    for r in ctx.conn.execute(q, params).fetchall():
        d = dict(r)
        d["detail"] = json.loads(d.pop("detail_json"))
        events.append(d)
    return {"events": events}