import { useCallback, useEffect, useState } from "react";
import { api } from "../api";
import type { DogDetailResult } from "../types";
import { estimatedBreeds } from "./MatchCard";

interface Props {
  kind: "known" | "unknown";
  id: number;
  onClose: () => void;
  onChanged?: () => void; // called after an admin status change so parent lists can refresh
}

// Valid statuses per dog kind (admin can set these — e.g. a found dog "at_shelter" vs "reunited").
const STATUS_OPTIONS: Record<"known" | "unknown", string[]> = {
  known: ["home", "lost", "reunited"],
  unknown: ["pending", "at_shelter", "claimed", "reunited"],
};

// Modal showing a dog's profile + ALL of its photos (full images). Admin-only, so it also lets the
// admin change the dog's status.
export default function DogPhotosModal({ kind, id, onClose, onChanged }: Props) {
  const [data, setData] = useState<DogDetailResult | null>(null);
  const [error, setError] = useState<string | null>(null);
  const [savingStatus, setSavingStatus] = useState(false);

  const load = useCallback(() => {
    setError(null);
    return api
      .getDogDetail(kind, id)
      .then(setData)
      .catch((e) => setError(e instanceof Error ? e.message : "Failed to load"));
  }, [kind, id]);

  useEffect(() => {
    setData(null);
    load();
  }, [load]);

  async function changeStatus(status: string) {
    setSavingStatus(true);
    setError(null);
    try {
      await api.setDogStatus(kind, id, status);
      await load();
      onChanged?.();
    } catch (e) {
      setError(e instanceof Error ? e.message : "Could not update status");
    } finally {
      setSavingStatus(false);
    }
  }

  return (
    <div
      className="fixed inset-0 bg-black/50 flex items-center justify-center p-4 z-30"
      role="dialog"
      onClick={onClose}
    >
      <div
        className="card max-w-3xl w-full max-h-[85vh] overflow-y-auto"
        onClick={(e) => e.stopPropagation()}
      >
        {error && <p className="text-red-600 text-sm mb-2">{error}</p>}
        {!data && !error ? (
          <p className="text-gray-500">Loading…</p>
        ) : data ? (
          <>
            <div className="flex items-start justify-between mb-1 gap-3">
              <div>
                <h3 className="font-bold text-lg">{data.profile.name}</h3>
                <p className="text-xs text-gray-500">
                  {data.profile.kind} #{data.profile.id}
                  {" · "}
                  {estimatedBreeds(data.profile.predicted_breeds)}
                  {data.profile.zip ? ` · ${data.profile.zip}` : ""}
                  {data.profile.dataset_name ? ` · ${data.profile.dataset_name}` : ""}
                </p>
              </div>
              <button className="btn-secondary" onClick={onClose}>
                Close
              </button>
            </div>

            <div className="flex items-center gap-2 my-3">
              <label className="label mb-0" htmlFor="dog-status">
                Status
              </label>
              <select
                id="dog-status"
                className="input w-auto"
                value={data.profile.status}
                disabled={savingStatus}
                onChange={(e) => changeStatus(e.target.value)}
              >
                {STATUS_OPTIONS[kind].map((s) => (
                  <option key={s} value={s}>
                    {s.replace("_", " ")}
                  </option>
                ))}
              </select>
              {savingStatus && <span className="text-xs text-gray-500">Saving…</span>}
            </div>

            <p className="text-xs text-gray-400 mb-3">{data.photos.length} photo(s)</p>
            <div className="grid grid-cols-2 sm:grid-cols-3 gap-2">
              {data.photos.map((p) => (
                <img
                  key={p.id}
                  src={p.url || p.thumb_url || "/paw-placeholder.svg"}
                  alt={data.profile.name}
                  className="w-full h-48 object-contain rounded-md bg-gray-100"
                />
              ))}
              {data.photos.length === 0 && (
                <p className="text-gray-500 text-sm col-span-full">No photos.</p>
              )}
            </div>
          </>
        ) : null}
      </div>
    </div>
  );
}