"use client";

import { IDENTITY_PROVIDER_ID } from "@shared";
import { Globe } from "lucide-react";
import Image from "next/image";

interface IdentityProviderIconProps {
  providerId: string;
  size?: number;
  className?: string;
}

/**
 * Returns the appropriate icon for an identity provider.
 * Uses brand icons for known providers (Google, Okta, GitHub) and a generic icon for others.
 */
export function IdentityProviderIcon({
  providerId,
  size = 16,
  className,
}: IdentityProviderIconProps) {
  const lowerProviderId = providerId.toLowerCase();

  // Google - use brand icon
  if (
    lowerProviderId === IDENTITY_PROVIDER_ID.GOOGLE.toLowerCase() ||
    lowerProviderId.includes("google")
  ) {
    return (
      <Image
        src="/icons/google.png"
        alt="Google"
        width={size}
        height={size}
        className={className}
      />
    );
  }

  // Okta - use brand icon
  if (
    lowerProviderId === IDENTITY_PROVIDER_ID.OKTA.toLowerCase() ||
    lowerProviderId.includes("okta")
  ) {
    return (
      <Image
        src="/icons/okta.png"
        alt="Okta"
        width={size}
        height={size}
        className={className}
      />
    );
  }

  // GitHub - use SVG icon (better quality at small sizes)
  if (
    lowerProviderId === IDENTITY_PROVIDER_ID.GITHUB.toLowerCase() ||
    lowerProviderId.includes("github")
  ) {
    return (
      <svg
        width={size}
        height={size}
        viewBox="0 0 24 24"
        fill="currentColor"
        className={className}
      >
        <title>GitHub</title>
        <path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z" />
      </svg>
    );
  }

  // GitLab - use brand icon
  if (
    lowerProviderId === IDENTITY_PROVIDER_ID.GITLAB.toLowerCase() ||
    lowerProviderId.includes("gitlab")
  ) {
    return (
      <Image
        src="/icons/gitlab.png"
        alt="GitLab"
        width={size}
        height={size}
        className={className}
      />
    );
  }

  // Microsoft Entra ID - use brand icon
  if (
    lowerProviderId === IDENTITY_PROVIDER_ID.ENTRA_ID.toLowerCase() ||
    lowerProviderId.includes("microsoft") ||
    lowerProviderId.includes("entra") ||
    lowerProviderId.includes("azure")
  ) {
    return (
      <Image
        src="/icons/microsoft.png"
        alt="Microsoft"
        width={size}
        height={size}
        className={className}
      />
    );
  }

  // Generic OAuth - use Globe icon
  return <Globe size={size} className={className} />;
}
