<?php

namespace App\Services;

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

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

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

    public function apiUrl(): string
    {
        $url = trim((string) $this->config->getString(
            'etehadie_api_url',
            (string) config('price_providers.etehadie_api_url', 'http://109.122.246.48:4949/api/free')
        ));

        return $url !== '' ? $url : 'http://109.122.246.48:4949/api/free';
    }

    /** کلید محصول در پاسخ API اتحادیه (همان price_method گلد علی) */
    public function priceKey(): string
    {
        $key = trim((string) $this->config->getString(
            'price_method',
            (string) config('price_providers.price_method', '')
        ));

        return $key;
    }

    /**
     * @return array{price: int, raw: array<string, mixed>|null}
     */
    public function fetchMainGramPrice(): array
    {
        if (!$this->isEnabled() && $this->priceKey() === '') {
            return ['price' => 0, 'raw' => null];
        }

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

            if (!is_array($prices)) {
                return ['price' => 0, 'raw' => null];
            }

            $key = $this->priceKey();
            $collection = collect($prices);
            $row = $key !== ''
                ? $collection->firstWhere('key', $key)
                : $collection->first();

            if (empty($row)) {
                return ['price' => 0, 'raw' => null];
            }

            $base = (float) ($row['price'] ?? 0);
            $profit = (float) ($row['profit'] ?? 0);
            $gramPrice = (int) round($base / 10 + $profit);

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

            return ['price' => 0, 'raw' => null];
        }
    }

    /** @return array<int, array<string, mixed>>|null */
    public function fetchPriceList(): ?array
    {
        try {
            $prices = Http::withoutVerifying()
                ->timeout(20)
                ->get($this->apiUrl())
                ->json();

            return is_array($prices) ? $prices : null;
        } catch (\Throwable $e) {
            Log::warning('Etehadie price list fetch failed', ['message' => $e->getMessage()]);

            return null;
        }
    }

    public function syncProductsFromApi(): bool
    {
        $prices = $this->fetchPriceList();
        if ($prices === null) {
            return false;
        }

        $products = \App\Models\Product::with([])->whereNotNull('reading_method')->get();
        $collection = collect($prices);
        $copper = null;
        $dollar = null;

        foreach ($products as $product) {
            $RPrice = $collection->firstWhere('key', $product->reading_method);
            if (empty($RPrice)) {
                continue;
            }

            if (($RPrice['name'] ?? '') === 'TGJU فلز مس') {
                $copper = ($RPrice['price'] ?? 0) + ($RPrice['profit'] ?? 0);
            }
            if (($RPrice['name'] ?? '') === 'TGJU دلار') {
                $dollar = ($RPrice['price'] ?? 0) + ($RPrice['profit'] ?? 0);
            }
            if (($RPrice['name'] ?? '') === 'گلد دات ای از آبشده - رسمی - نقد فردا') {
                $RPrice['price'] = ($RPrice['price'] ?? 0) / 4.3318;
            }

            ProductPriceService::syncFromReference(
                $product,
                (int) $RPrice['price'],
                (int) ($RPrice['profit'] ?? 0)
            );
        }

        if ($copper !== null && $dollar !== null) {
            $cp = ($copper / 1000000) * $dollar;
            $copperProduct = \App\Models\Product::find(33);
            if ($copperProduct) {
                ProductPriceService::syncFromReference($copperProduct, (int) round($cp), 0);
            }
        }

        return true;
    }
}