<?php

namespace Modules\AssetExchange\Services;

use App\Business;
use Illuminate\Support\Facades\Schema;
use Modules\AssetExchange\Models\Commission;
use Modules\AssetExchange\Models\Deal;
use Modules\AssetExchange\Models\Listing;
use Modules\AssetExchange\Utils\AssetExchangeUtil;

class AssetExchangeDashboardService
{
    public function __construct(
        protected AssetExchangeUtil $aexUtil
    ) {
    }

    public function getKpiStats(Business $business): array
    {
        if (! Schema::hasTable('aex_listings')) {
            return $this->emptyStats();
        }

        $bid = $business->id;

        $listingsByStatus = Listing::where('business_id', $bid)
            ->selectRaw('status, COUNT(*) as count')
            ->groupBy('status')
            ->pluck('count', 'status')
            ->toArray();

        $openDeals = 0;
        $dealsByType = [];
        $dealsByStatus = [];

        if (Schema::hasTable('aex_deals')) {
            $openDeals = Deal::where('business_id', $bid)
                ->whereNotIn('status', ['completed', 'cancelled'])
                ->count();

            $dealsByType = Deal::where('business_id', $bid)
                ->selectRaw('deal_type, COUNT(*) as count')
                ->groupBy('deal_type')
                ->pluck('count', 'deal_type')
                ->toArray();

            $dealsByStatus = Deal::where('business_id', $bid)
                ->selectRaw('status, COUNT(*) as count')
                ->groupBy('status')
                ->pluck('count', 'status')
                ->toArray();
        }

        $commissionsPending = 0;
        $commissionsPendingAmount = 0;

        if (Schema::hasTable('aex_commissions')) {
            $commissionsPending = Commission::where('business_id', $bid)
                ->whereIn('status', ['pending', 'synced'])
                ->count();

            $commissionsPendingAmount = (int) Commission::where('business_id', $bid)
                ->whereIn('status', ['pending', 'synced'])
                ->sum('amount');
        }

        $inAppraisal = (int) ($listingsByStatus['under_review'] ?? 0)
            + (int) ($listingsByStatus['submitted'] ?? 0);

        $activeListings = (int) ($listingsByStatus['appraised'] ?? 0)
            + (int) ($listingsByStatus['in_deal'] ?? 0)
            + (int) ($listingsByStatus['submitted'] ?? 0)
            + (int) ($listingsByStatus['under_review'] ?? 0);

        return [
            'listings' => [
                'by_status' => $this->labelizeCounts($listingsByStatus, 'status'),
                'active' => $activeListings,
                'in_appraisal_pipeline' => $inAppraisal,
                'appraised' => (int) ($listingsByStatus['appraised'] ?? 0),
                'sold' => (int) ($listingsByStatus['sold'] ?? 0),
            ],
            'deals' => [
                'open' => $openDeals,
                'by_type' => $this->labelizeCounts($dealsByType, 'deal_type'),
                'by_status' => $this->labelizeCounts($dealsByStatus, 'status'),
            ],
            'commissions' => [
                'pending_count' => $commissionsPending,
                'pending_amount' => $commissionsPendingAmount,
                'pending_amount_formatted' => $this->aexUtil->formatMoney($commissionsPendingAmount),
            ],
        ];
    }

    protected function labelizeCounts(array $counts, string $labelType): array
    {
        $result = [];

        foreach ($counts as $key => $count) {
            $label = match ($labelType) {
                'status' => $this->aexUtil->statusLabel($key),
                'deal_type' => $this->aexUtil->dealTypeLabel($key),
                default => $key,
            };

            $result[] = [
                'key' => $key,
                'label' => $label,
                'count' => (int) $count,
            ];
        }

        return $result;
    }

    protected function emptyStats(): array
    {
        return [
            'listings' => [
                'by_status' => [],
                'active' => 0,
                'in_appraisal_pipeline' => 0,
                'appraised' => 0,
                'sold' => 0,
            ],
            'deals' => [
                'open' => 0,
                'by_type' => [],
                'by_status' => [],
            ],
            'commissions' => [
                'pending_count' => 0,
                'pending_amount' => 0,
                'pending_amount_formatted' => $this->aexUtil->formatMoney(0),
            ],
        ];
    }
}