<?php

namespace App\Http\Controllers;

use App\Models\Contract;
use App\Models\Document;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;

class DocumentController extends Controller
{
    /**
     * Store a new document for a contract.
     */
    public function store(Request $request, Contract $contract)
    {
        // Simple validation
        $request->validate([
            'file' => 'required|file|mimes:pdf,docx,jpg,png|max:10240', // 10MB limit
            'description' => 'nullable|string|max:255',
        ]);

        if ($request->hasFile('file')) {
            $path = $request->file('file')->store('contracts/' . $contract->id, 'public');
            
            $contract->documents()->create([
                'filename' => $request->file('file')->getClientOriginalName(),
                'path' => $path,
                'mime_type' => $request->file('file')->getMimeType(),
                'size' => $request->file('file')->getSize(),
                'description' => $request->input('description'),
                'uploaded_by' => auth()->id(),
            ]);

            return back()->with('success', 'Document uploaded successfully.');
        }

        return back()->with('error', 'No file uploaded.');
    }

    /**
     * Delete a document.
     */
    public function destroy(Document $document)
    {
        // Check permission (manager or admin or uploader?)
        if (!auth()->user()->isManager() && auth()->id() !== $document->uploaded_by) {
            abort(403);
        }

        // Delete from storage
        Storage::disk('public')->delete($document->path);

        $document->delete();

        return back()->with('success', 'Document deleted.');
    }
}