<?php namespace App\Http\Controllers\App;

use App\Http\Controllers\Controller;
use App\Models\Supplier;
use Illuminate\Http\Request;
use Notsoweb\ApiResponse\Enums\ApiResponse;

class SupplierController extends Controller
{
    public function index(Request $request)
    {
        $query = Supplier::query();

        // Filtro por búsqueda
        if ($request->has('q')) {
            $query->where(function($q) use ($request) {
                $q->where('business_name', 'like', "%{$request->q}%")
                  ->orWhere('rfc', 'like', "%{$request->q}%");
            });
        }

        // Filtro por estado
        if ($request->has('is_active')) {
            $query->where('is_active', $request->is_active);
        }

        $suppliers = $query->orderBy('business_name')
            ->paginate(config('app.pagination'));

        return ApiResponse::OK->response([
            'suppliers' => $suppliers
        ]);
    }

    public function store(Request $request)
    {
        $validated = $request->validate([
            'business_name' => 'required|string|max:255',
            'email' => 'nullable|email',
            'phone' => 'nullable|string|max:10',
            'rfc' => 'nullable|string|unique:suppliers,rfc',
            'address' => 'nullable|string',
            'postal_code' => 'nullable|string',
            'notes' => 'nullable|string',
        ]);

        $supplier = Supplier::create($validated);

        return ApiResponse::CREATED->response([
            'supplier' => $supplier
        ]);
    }

    public function show(Supplier $supplier)
    {
        return ApiResponse::OK->response([
            'supplier' => $supplier->load('inventoryMovements')
        ]);
    }

    public function update(Request $request, Supplier $supplier)
    {
        $validated = $request->validate([
            'business_name' => 'nullable|string|max:255',
            'email' => 'nullable|email',
            'phone' => 'nullable|string|max:10',
            'rfc' => 'nullable|string|unique:suppliers,rfc,' . $supplier->id,
            'address' => 'nullable|string',
            'postal_code' => 'nullable|string',
            'notes' => 'nullable|string',
        ]);

        $supplier->update($validated);

        return ApiResponse::OK->response([
            'supplier' => $supplier->fresh()
        ]);
    }

    public function destroy(Supplier $supplier)
    {
        $supplier->delete();
        return ApiResponse::OK->response();
    }

    /**
     * Productos suministrados por el proveedor
     */
    public function products(Supplier $supplier)
    {
        $products = $supplier->suppliedProducts()
            ->with(['category', 'price'])
            ->paginate(config('app.pagination'));

        return ApiResponse::OK->response([
            'products' => $products
        ]);
    }

    /**
     * Historial de compras al proveedor
     */
    public function purchases(Supplier $supplier, Request $request)
    {
        $query = $supplier->inventoryMovements()
            ->with(['inventory', 'warehouseTo', 'user'])
            ->orderBy('created_at', 'desc');

        if ($request->has('from_date')) {
            $query->whereDate('created_at', '>=', $request->from_date);
        }

        if ($request->has('to_date')) {
            $query->whereDate('created_at', '<=', $request->to_date);
        }

        $purchases = $query->paginate(config('app.pagination'));

        return ApiResponse::OK->response([
            'purchases' => $purchases,
            'total_amount' => $supplier->total_purchases
        ]);
    }
}