<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\DocketEntry;
use App\Models\Document;
use Illuminate\Http\Request;
use Illuminate\Http\RedirectResponse;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;

class DocumentController extends Controller
{
    /**
     * Store a newly uploaded document.
     */
    public function store(Request $request, DocketEntry $docketEntry): RedirectResponse
    {
        $validated = $request->validate([
            'file' => 'required|file|mimes:pdf|max:512000', // 500MB max
            'title' => 'required|string|max:255',
            'summary' => 'nullable|string',
        ]);

        // Get the uploaded file
        $file = $request->file('file');
        
        // Generate unique filename
        $storedFilename = Str::uuid() . '.pdf';
        
        // Store file in storage/app/public/documents
        $filePath = $file->storeAs('documents', $storedFilename, 'public');
        
        // Get the highest display order for this entry
        $maxOrder = $docketEntry->documents()->max('display_order') ?? -1;
        
        // Create document record
        Document::create([
            'docket_entry_id' => $docketEntry->id,
            'title' => $validated['title'],
            'original_filename' => $file->getClientOriginalName(),
            'stored_filename' => $storedFilename,
            'file_path' => $filePath,
            'file_size' => $file->getSize(),
            'mime_type' => $file->getMimeType(),
            'summary' => $validated['summary'] ?? null,
            'display_order' => $maxOrder + 1,
        ]);

        return redirect()->route('admin.docket-entries.show', $docketEntry->id)
            ->with('success', 'Document uploaded successfully.');
    }

    /**
     * Remove the specified document.
     */
    public function destroy(Document $document): RedirectResponse
    {
        $docketEntryId = $document->docket_entry_id;
        
        // Delete the file from storage
        if (Storage::disk('public')->exists($document->file_path)) {
            Storage::disk('public')->delete($document->file_path);
        }
        
        // Delete the database record
        $document->delete();

        return redirect()->route('admin.docket-entries.show', $docketEntryId)
            ->with('success', 'Document deleted successfully.');
    }
}