<?php

namespace App\Http\Controllers\Merchant;

use App\Http\Controllers\Controller;
use App\Services\Crm\CrmClient;
use App\Services\Qr\QrCodeManagerService;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;

/**
 * Products page — fully backed by the Ladill CRM products API. The merchant's
 * catalog lives in CRM (owner-scoped); this controller proxies CRUD to it.
 */
class ProductController extends Controller
{
    public function __construct(private QrCodeManagerService $manager) {}

    private function crm(): CrmClient
    {
        return CrmClient::for((string) ladill_account()->public_id);
    }

    public function index(Request $request): View
    {
        $search = trim((string) $request->query('search', ''));

        $response = $this->crm()->products([
            'type' => 'product',
            'per_page' => 100,
            'search' => $search !== '' ? $search : null,
        ]);

        $products = (array) ($response['data'] ?? []);
        $wallet = $this->manager->walletFor(ladill_account());

        return view('merchant.products.index', [
            'products' => $products,
            'search' => $search,
            'wallet' => $wallet,
            'productCount' => count($products),
            'activeCount' => collect($products)->filter(fn ($p) => ($p['active'] ?? true))->count(),
        ]);
    }

    public function create(): View
    {
        return view('merchant.products.create');
    }

    public function store(Request $request): RedirectResponse
    {
        $this->crm()->createProduct($this->payload($request));

        return redirect()->route('merchant.products.index')->with('success', 'Product created.');
    }

    public function edit(string $product): View
    {
        return view('merchant.products.edit', ['product' => $this->crm()->product($product)]);
    }

    public function update(Request $request, string $product): RedirectResponse
    {
        $this->crm()->updateProduct($product, $this->payload($request));

        return redirect()->route('merchant.products.index')->with('success', 'Product updated.');
    }

    public function destroy(string $product): RedirectResponse
    {
        $this->crm()->deleteProduct($product);

        return redirect()->route('merchant.products.index')->with('success', 'Product deleted.');
    }

    /** @return array<string,mixed> */
    private function payload(Request $request): array
    {
        $data = $request->validate([
            'name' => ['required', 'string', 'max:255'],
            'sku' => ['nullable', 'string', 'max:80'],
            'description' => ['nullable', 'string', 'max:5000'],
            'unit_price' => ['nullable', 'numeric', 'min:0'],
            'currency' => ['nullable', 'string', 'size:3'],
            'tax_rate' => ['nullable', 'numeric', 'min:0', 'max:100'],
            'active' => ['nullable', 'boolean'],
        ]);

        return [
            'name' => $data['name'],
            'sku' => $data['sku'] ?? null,
            'type' => 'product',
            'description' => $data['description'] ?? null,
            'unit_price_minor' => (int) round(((float) ($data['unit_price'] ?? 0)) * 100),
            'currency' => strtoupper((string) ($data['currency'] ?? config('crm.default_currency', 'GHS'))),
            'tax_rate' => (float) ($data['tax_rate'] ?? 0),
            'active' => $request->boolean('active'),
        ];
    }
}