'use client';

import React, { useState } from 'react';
import { FileExample } from './FileExample';
import type { FileExampleGroup } from '../data/fileExamples';

interface FileExamplesListProps {
  groups: FileExampleGroup[];
}

export const FileExamplesList: React.FC<FileExamplesListProps> = ({ groups }) => {
  const [expandedGroups, setExpandedGroups] = useState<Record<string, boolean>>({});

  const toggleAllInGroup = (groupId: string, files: any[]) => {
    const isAnyExpanded = files.some(f => expandedGroups[f.id]);
    const newExpanded = { ...expandedGroups };
    files.forEach(f => {
      newExpanded[f.id] = !isAnyExpanded;
    });
    setExpandedGroups(newExpanded);
  };

  if (groups.length === 0) {
    return (
      <div className="bg-slate-50 border border-slate-200 rounded-lg px-4 py-6 text-center">
        <svg className="w-6 h-6 mx-auto text-slate-300 mb-2" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
        </svg>
        <p className="text-slate-500 text-sm">No files found</p>
      </div>
    );
  }

  return (
    <div className="space-y-3">
      {groups.map((group) => (
        <section
          key={group.groupId}
          className="not-prose bg-white border border-slate-200/80 rounded-lg w-full overflow-hidden"
          data-file-examples-group
        >
          <header className="px-3 py-2 grid grid-cols-[1fr_auto] items-center gap-3 border-b border-slate-200/80 bg-white">
            <h3 className="m-0 text-xs font-semibold text-slate-900 truncate tracking-tight leading-none">{group.title}</h3>

            <div className="flex items-center gap-2">
              <span className="text-[11px] text-slate-600 bg-slate-100/80 border border-slate-200/60 rounded-full px-2 py-0.5 tabular-nums">
                {group.files.length} files
              </span>

              <button
                type="button"
                className="toggle-all-btn h-8 w-8 inline-flex items-center justify-center rounded-full border border-slate-200 bg-white text-slate-400 hover:text-slate-900 hover:border-slate-400 hover:bg-slate-50 transition-all duration-500 ease-[cubic-bezier(0.23,1,0.32,1)] hover:-translate-y-0.5 hover:shadow-lg hover:shadow-slate-100"
                title="Toggle all"
                onClick={() => toggleAllInGroup(group.groupId, group.files)}
              >
                {group.files.some(f => expandedGroups[f.id]) ? (
                  <svg className="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" d="M5 15l7-7 7 7" />
                  </svg>
                ) : (
                  <svg className="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" d="M19 9l-7 7-7-7" />
                  </svg>
                )}
              </button>
            </div>
          </header>

          <div className="px-2 py-2 space-y-2">
            {group.files.map((file) => (
              <FileExample
                key={file.id}
                filename={file.filename}
                content={file.content}
                language={file.language}
                description={file.description}
                tags={file.tags}
                id={file.id}
              />
            ))}
          </div>
        </section>
      ))}
    </div>
  );
};