"use client";

import { useEffect, useState } from "react";
import { CheckCircle2, Info, X } from "lucide-react";

// A minimal toast for a confirmed import. Deliberately not a dependency: the app needs
// exactly one, and a full toast library would ship far more surface than that justifies.
//
// Both fills come from the existing palette rather than inventing hues: #00798C teal is
// this app's success colour (the "All booked" badge, the income tiles), and #EDAE49 sunny
// is its existing attention/amber accent.
//
// Announced politely rather than assertively — a confirmation is not urgent, and it
// should not interrupt whatever a screen reader is currently saying.
//
// z-[1300], not a low value: the sticky header is z-[1100] (it has to clear Leaflet's
// z-1000 control panes) and the mobile nav drawer is z-[1200]. Below those the toast
// rendered behind the nav bar.
export function Toast({
  message,
  detail,
  tone = "success",
  onDismiss,
  duration = 6000,
}: {
  message: string;
  detail?: string;
  // "success" = it was imported. "notice" = nothing was added, but nothing is wrong
  // either — e.g. the file was already in the register.
  tone?: "success" | "notice";
  onDismiss: () => void;
  duration?: number;
}) {
  const [leaving, setLeaving] = useState(false);

  const close = () => {
    setLeaving(true);
    setTimeout(onDismiss, 200); // let the transition run before unmounting
  };

  useEffect(() => {
    const t = setTimeout(close, duration);
    return () => clearTimeout(t);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [message, detail, duration]);

  return (
    <div
      role="status"
      aria-live="polite"
      className={`pointer-events-none fixed z-[1300] inset-x-3 sm:inset-x-auto sm:right-6 sm:w-auto sm:max-w-sm
        pt-[max(0.75rem,env(safe-area-inset-top))] sm:pt-0 sm:top-6
        transition-all duration-200 ease-out
        ${leaving ? "opacity-0 -translate-y-2" : "opacity-100 translate-y-0"}`}
    >
      <div
        className={`pointer-events-auto flex items-start gap-3 px-4 py-3 rounded-xl text-white
          shadow-xl border border-white/15 ${
            tone === "notice"
              ? "bg-[#EDAE49] shadow-amber-900/20"
              : "bg-[#00798C] shadow-teal-900/20"
          } ${leaving ? "" : "ring-1 ring-white/25"}`}
      >
        {tone === "notice" ? (
          <Info className="w-5 h-5 text-white shrink-0 mt-0.5" />
        ) : (
          <CheckCircle2 className="w-5 h-5 text-white shrink-0 mt-0.5" />
        )}
        <div className="min-w-0 flex-1">
          <div className="text-sm font-semibold text-white">{message}</div>
          {detail && <div className="text-sm text-white/85 mt-0.5 break-words">{detail}</div>}
        </div>
        <button
          type="button"
          onClick={close}
          aria-label="Dismiss"
          className="grid place-items-center w-11 h-11 -mr-2 -my-1 rounded-lg text-white/80 hover:bg-white/15 hover:text-white transition shrink-0"
        >
          <X className="w-4 h-4" />
        </button>
      </div>
    </div>
  );
}