<?php

namespace App\Http\Controllers\Pos;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Pos\Concerns\ScopesToAccount;
use App\Models\PosProduct;
use App\Models\PosSale;
use App\Services\Pos\PosLocationService;
use App\Services\Pos\PosSaleService;
use App\Services\Crm\CrmClient;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;
use RuntimeException;

class RegisterController extends Controller
{
    use ScopesToAccount;

    public function __construct(private PosSaleService $sales, private PosLocationService $locations) {}

    public function index(Request $request): View
    {
        $owner = $this->ownerRef($request);
        $location = $this->locations->ensureDefault($owner);

        $products = PosProduct::owned($owner)
            ->active()
            ->orderBy('name')
            ->get();

        return view('pos.register', [
            'products' => $products,
            'location' => $location,
            'crmCustomers' => $this->crmCustomers($owner),
        ]);
    }

    /** @return list<array<string, mixed>> */
    private function crmCustomers(string $owner): array
    {
        try {
            return (array) ((CrmClient::for($owner)->customers(['per_page' => 200])['data']) ?? []);
        } catch (\Throwable) {
            return [];
        }
    }

    public function charge(Request $request): RedirectResponse
    {
        $data = $request->validate([
            'lines' => ['required', 'array', 'min:1'],
            'lines.*.product_id' => ['nullable', 'integer'],
            'lines.*.name' => ['required', 'string', 'max:200'],
            'lines.*.unit_price_minor' => ['required', 'integer', 'min:1'],
            'lines.*.quantity' => ['required', 'integer', 'min:1', 'max:999'],
            'customer_name' => ['nullable', 'string', 'max:120'],
            'customer_email' => ['nullable', 'email', 'max:255'],
            'customer_phone' => ['nullable', 'string', 'max:40'],
            'crm_customer_id' => ['nullable', 'integer'],
            'payment_method' => ['required', 'in:pay,cash'],
        ]);

        $merchant = ladill_account() ?? $request->user();
        $location = $this->locations->ensureDefault($this->ownerRef($request));

        try {
            $sale = $this->sales->createSale($merchant, $data['lines'], [
                'location_id' => $location->id,
                'currency' => $location->currency,
                'customer_name' => $data['customer_name'] ?? null,
                'customer_email' => $data['customer_email'] ?? null,
                'customer_phone' => $data['customer_phone'] ?? null,
                'crm_customer_id' => $data['crm_customer_id'] ?? null,
            ]);

            if ($data['payment_method'] === 'cash') {
                $this->sales->recordCashPayment($sale);

                return redirect()
                    ->route('pos.sales.show', $sale)
                    ->with('success', 'Cash sale recorded.');
            }

            $result = $this->sales->initiatePayCheckout($sale, $merchant);

            return redirect()->away($result['checkout_url']);
        } catch (RuntimeException $e) {
            return back()->withInput()->with('error', $e->getMessage());
        }
    }
}