<?php

namespace App\Services;

use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;

class ZaarboxPriceService
{
    public function __construct(private ConfigService $config)
    {
    }

    public function isEnabled(): bool
    {
        return $this->config->usesZaarboxPricing();
    }

    public function apiUrl(): string
    {
        $url = trim((string) $this->config->getString(
            'zaarbox_api_url',
            (string) config('price_providers.zaarbox_api_url', 'https://price.zaarbox.ir/api/free')
        ));

        return $url !== '' ? $url : 'https://price.zaarbox.ir/api/free';
    }

    /** کلید یا id ردیف در JSON تابلو (settings: zaarbox_price_key) */
    public function priceIdentifier(): string
    {
        return trim((string) $this->config->getString(
            'zaarbox_price_key',
            (string) config('price_providers.zaarbox_price_key', '')
        ));
    }

    /**
     * @return array{price: int, order_price: int, raw: array<string, mixed>|null}
     */
    public function fetchPrice(): array
    {
        $empty = ['price' => 0, 'order_price' => 0, 'raw' => null];
        $identifier = $this->priceIdentifier();
        if ($identifier === '') {
            return $empty;
        }

        try {
            $prices = Http::withoutVerifying()
                ->timeout(20)
                ->get($this->apiUrl())
                ->json();

            if (!is_array($prices)) {
                return $empty;
            }

            $row = $this->findRow(collect($prices), $identifier);
            if (empty($row)) {
                Log::warning('Zaarbox price row not found', [
                    'identifier' => $identifier,
                    'api' => $this->apiUrl(),
                ]);

                return $empty;
            }

            $base = (float) ($row['price'] ?? 0);
            $profit = (float) ($row['profit'] ?? 0);
            $orderPrice = (int) round($base + $profit);

            return ['price' => $orderPrice, 'order_price' => $orderPrice, 'raw' => $row];
        } catch (\Throwable $e) {
            Log::warning('Zaarbox price fetch failed', ['message' => $e->getMessage()]);

            return $empty;
        }
    }

    /**
     * @param Collection<int, array<string, mixed>> $collection
     * @return array<string, mixed>|null
     */
    private function findRow(Collection $collection, string $identifier): ?array
    {
        $row = $collection->firstWhere('key', $identifier);
        if (!empty($row)) {
            return $row;
        }

        $row = $collection->firstWhere('id', $identifier);
        if (!empty($row)) {
            return $row;
        }

        return null;
    }
}