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Viewing File: CoinController.php

<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Coin;
use App\Services\CryptoService;
use App\Services\ExchangeSupportChecker;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\View\View;
use Illuminate\Http\RedirectResponse;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\Log;

class CoinController extends Controller
{
    protected CryptoService $cryptoService;
    protected ExchangeSupportChecker $supportChecker;

    public function __construct(CryptoService $cryptoService, ExchangeSupportChecker $supportChecker)
    {
        $this->cryptoService = $cryptoService;
        $this->supportChecker = $supportChecker;
    }

    /**
     * Display a listing of the coins
     */
    public function index(Request $request): View
    {
        $query = Coin::query();

        // Apply search filter
        if ($request->filled('search')) {
            $search = $request->get('search');
            $query->where(function($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                  ->orWhere('symbol', 'like', "%{$search}%")
                  ->orWhere('display_symbol', 'like', "%{$search}%");
            });
        }

        // Apply status filter
        if ($request->filled('status')) {
            $status = $request->get('status');
            if ($status === 'active') {
                $query->where('is_active', true);
            } elseif ($status === 'inactive') {
                $query->where('is_active', false);
            }
        }

        // Apply support status filter
        if ($request->filled('support_status')) {
            $query->where('price_check_status', $request->get('support_status'));
        }

        $coins = $query->ordered()->paginate(20);

        return view('admin.coins.index', compact('coins'));
    }

    /**
     * Show the form for creating a new coin
     */
    public function create(): View
    {
        return view('admin.coins.create');
    }

    /**
     * Store a newly created coin
     */
    public function store(Request $request): RedirectResponse
    {
        $validated = $this->validateCoin($request);

        try {
            // Handle image upload/URL
            $validated['image'] = $this->handleImageUpload($request);

            $coin = Coin::create($validated);

            // Check exchange support if requested
            if ($request->boolean('check_support')) {
                $this->supportChecker->updateCoinSupportStatus($coin);
            }

            return redirect()
                ->route('admin.coins.index')
                ->with('success', "Coin '{$coin->name}' created successfully!");

        } catch (\Exception $e) {
            Log::error('Error creating coin', [
                'error' => $e->getMessage(),
                'data' => $validated
            ]);

            return back()
                ->withInput()
                ->with('error', 'Failed to create coin: ' . $e->getMessage());
        }
    }

    /**
     * Display the specified coin
     */
    public function show(Coin $coin): View
    {
        // Get support status if available
        $supportStatus = null;
        if ($coin->supported_exchanges) {
            $supportResults = $coin->supported_exchanges;
            $supportedCount = collect($supportResults)->where('supported', true)->count();
            $totalCount = count($supportResults);
            
            $supportStatus = [
                'results' => $supportResults,
                'supported_count' => $supportedCount,
                'total_count' => $totalCount,
                'status' => match(true) {
                    $supportedCount >= 3 => 'excellent',
                    $supportedCount >= 2 => 'good',
                    $supportedCount >= 1 => 'limited',
                    default => 'unsupported'
                }
            ];
        }

        return view('admin.coins.show', compact('coin', 'supportStatus'));
    }

    /**
     * Show the form for editing the specified coin
     */
    public function edit(Coin $coin): View
    {
        return view('admin.coins.edit', compact('coin'));
    }

    /**
     * Update the specified coin
     */
    public function update(Request $request, Coin $coin): RedirectResponse
    {
        $validated = $this->validateCoin($request, $coin->id);

        try {
            // Handle image upload/URL if provided
            if ($request->filled('image_url') || $request->hasFile('image_file')) {
                $validated['image'] = $this->handleImageUpload($request);
            }

            $coin->update($validated);

            // Check exchange support if requested
            if ($request->boolean('check_support')) {
                $this->supportChecker->updateCoinSupportStatus($coin);
            }

            return redirect()
                ->route('admin.coins.index')
                ->with('success', "Coin '{$coin->name}' updated successfully!");

        } catch (\Exception $e) {
            Log::error('Error updating coin', [
                'coin_id' => $coin->id,
                'error' => $e->getMessage(),
                'data' => $validated
            ]);

            return back()
                ->withInput()
                ->with('error', 'Failed to update coin: ' . $e->getMessage());
        }
    }

    /**
     * Remove the specified coin
     */
    public function destroy(Coin $coin): RedirectResponse
    {
        try {
            $coinName = $coin->name;
            $coin->delete();

            return redirect()
                ->route('admin.coins.index')
                ->with('success', "Coin '{$coinName}' deleted successfully!");

        } catch (\Exception $e) {
            Log::error('Error deleting coin', [
                'coin_id' => $coin->id,
                'error' => $e->getMessage()
            ]);

            return back()
                ->with('error', 'Failed to delete coin: ' . $e->getMessage());
        }
    }

    /**
     * Check support for a specific coin (AJAX)
     */
    public function checkSupport(Coin $coin): JsonResponse
    {
        try {
            $result = $this->supportChecker->updateCoinSupportStatus($coin);
            
            return response()->json([
                'success' => true,
                'data' => $result
            ]);

        } catch (\Exception $e) {
            Log::error('Error checking support for coin', [
                'coin_id' => $coin->id,
                'error' => $e->getMessage()
            ]);

            return response()->json([
                'success' => false,
                'message' => 'Failed to check support: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Bulk check support for multiple coins (AJAX)
     */
    public function bulkCheckSupport(Request $request): JsonResponse
    {
        $request->validate([
            'coin_ids' => 'required|array',
            'coin_ids.*' => 'exists:coins,id'
        ]);

        try {
            $results = [];
            $coins = Coin::whereIn('id', $request->coin_ids)->get();

            foreach ($coins as $coin) {
                $results[] = $this->supportChecker->updateCoinSupportStatus($coin);
            }

            return response()->json([
                'success' => true,
                'data' => $results
            ]);

        } catch (\Exception $e) {
            Log::error('Error in bulk support check', [
                'coin_ids' => $request->coin_ids,
                'error' => $e->getMessage()
            ]);

            return response()->json([
                'success' => false,
                'message' => 'Failed to check support: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Toggle coin active status (AJAX)
     */
    public function toggleStatus(Coin $coin): JsonResponse
    {
        try {
            $coin->update(['is_active' => !$coin->is_active]);

            return response()->json([
                'success' => true,
                'is_active' => $coin->is_active,
                'message' => "Coin {$coin->name} " . ($coin->is_active ? 'activated' : 'deactivated')
            ]);

        } catch (\Exception $e) {
            return response()->json([
                'success' => false,
                'message' => 'Failed to toggle status: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Clear crypto service cache
     */
    public function clearCache(): RedirectResponse
    {
        try {
            $this->cryptoService->clearCache();
            
            return back()->with('success', 'Cache cleared successfully!');
        } catch (\Exception $e) {
            return back()->with('error', 'Failed to clear cache: ' . $e->getMessage());
        }
    }

    /**
     * Validate coin data
     */
    private function validateCoin(Request $request, ?int $coinId = null): array
    {
        $rules = [
            'symbol' => 'required|string|max:10|alpha',
            'name' => 'required|string|max:100',
            'network' => 'nullable|string|max:20',
            'display_symbol' => 'required|string|max:20',
            'price_symbol' => 'required|string|max:50|alpha_dash',
            'decimals' => 'required|integer|min:0|max:18',
            'default_fee' => 'required|numeric|min:0',
            'default_swap_fee' => 'required|numeric|min:0',
            'address_validation_regex' => 'required|string|max:500',
            'sort_order' => 'required|integer|min:1',
            'is_active' => 'boolean',
            'use_manual_price' => 'boolean',
            'manual_price_usd' => 'nullable|numeric|min:0',
            'image_url' => 'nullable|url|max:500',
            'image_file' => 'nullable|image|mimes:png,jpg,jpeg,svg|max:2048'
        ];

        // Add unique validation for symbol+network combination
        $symbolRule = 'unique:coins,symbol';
        if ($coinId) {
            $symbolRule .= ",{$coinId}";
        }
        if ($request->filled('network')) {
            $symbolRule .= ',id,network,' . $request->network;
        }
        $rules['symbol'] .= '|' . $symbolRule;

        return $request->validate($rules);
    }

    /**
     * Handle image upload or URL
     */
    private function handleImageUpload(Request $request): ?string
    {
        // Priority: file upload > URL
        if ($request->hasFile('image_file')) {
            $file = $request->file('image_file');
            $filename = time() . '_' . $file->getClientOriginalName();
            $path = $file->storeAs('coins', $filename, 'public');
            return $path;
        }

        if ($request->filled('image_url')) {
            return $request->image_url;
        }

        return null;
    }
}
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