"use client";

import { useState, useEffect, useRef } from "react";
import { normalizeAvatarUrl } from "@/lib/avatars";

interface AvatarProps {
  src: string | null | undefined;
  username: string;
  size?: "xs" | "sm" | "md" | "lg" | "xl" | "2xl";
  className?: string;
  borderClassName?: string;
  fallbackText?: string;
  style?: React.CSSProperties;
}

const sizeClasses = {
  xs: "w-6 h-6 text-[8px]",
  sm: "w-8 h-8 text-[10px]",
  md: "w-10 h-10 text-xs",
  lg: "w-16 h-16 sm:w-20 sm:h-20 text-xl sm:text-2xl",
  xl: "w-24 h-24 text-4xl",
  "2xl": "w-32 h-32 text-4xl",
};

export default function Avatar({
  src,
  username,
  size = "md",
  className = "",
  borderClassName = "",
  fallbackText,
  style,
}: AvatarProps) {
  const [avatarError, setAvatarError] = useState(false);
  const prevSrcRef = useRef<string | null | undefined>(undefined);

  // Reset error state when src changes
  useEffect(() => {
    if (src !== prevSrcRef.current) {
      prevSrcRef.current = src;
      // Reset error when src changes to allow retry
      // eslint-disable-next-line react-hooks/set-state-in-effect
      setAvatarError(false);
    }
  }, [src]);

  const sizeClass = sizeClasses[size];
  const normalizedSrc = normalizeAvatarUrl(src);
  const displaySrc = normalizedSrc && !avatarError ? normalizedSrc : null;
  const initial = fallbackText || username.charAt(0).toUpperCase();

  return (
    <div
      className={`${sizeClass} rounded-full border overflow-hidden flex items-center justify-center relative ${className} ${borderClassName}`}
      style={{
        backgroundColor: "var(--card)",
        borderColor: "var(--border)",
        ...style,
      }}
    >
      {displaySrc ? (
        <img
          key={displaySrc}
          src={displaySrc}
          alt={username}
          className="w-full h-full object-cover absolute inset-0"
          onError={() => setAvatarError(true)}
        />
      ) : null}
      <span
        className={`font-bold ${displaySrc ? "hidden" : ""}`}
        style={{ color: "var(--accent-color)" }}
      >
        {initial}
      </span>
    </div>
  );
}