<?php

namespace App\Services\Stats;

use App\Models\Stats\Daily\StatQuotePipelineDaily;
use Carbon\Carbon;
use Illuminate\Support\Facades\DB;

class QuoteStatService implements StatDomainServiceInterface
{
    public function aggregateDaily(int $tenantId, Carbon $date): int
    {
        $dateStr = $date->format('Y-m-d');

        // 견적 (quotes)
        $quoteStats = DB::connection('mysql')
            ->table('quotes')
            ->where('tenant_id', $tenantId)
            ->where('registration_date', $dateStr)
            ->whereNull('deleted_at')
            ->selectRaw("
                COUNT(*) as created_count,
                COALESCE(SUM(total_amount), 0) as total_amount,
                SUM(CASE WHEN status = 'approved' THEN 1 ELSE 0 END) as approved_count,
                SUM(CASE WHEN status = 'rejected' THEN 1 ELSE 0 END) as rejected_count,
                SUM(CASE WHEN status = 'converted' THEN 1 ELSE 0 END) as conversion_count
            ")
            ->first();

        $createdCount = $quoteStats->created_count ?? 0;
        $conversionCount = $quoteStats->conversion_count ?? 0;
        $conversionRate = $createdCount > 0 ? ($conversionCount / $createdCount) * 100 : 0;

        // 입찰 (biddings)
        $biddingStats = DB::connection('mysql')
            ->table('biddings')
            ->where('tenant_id', $tenantId)
            ->where('bidding_date', $dateStr)
            ->whereNull('deleted_at')
            ->selectRaw("
                COUNT(*) as cnt,
                SUM(CASE WHEN status = 'won' THEN 1 ELSE 0 END) as won_count,
                COALESCE(SUM(bidding_amount), 0) as total_amount
            ")
            ->first();

        // 상담 (sales_prospect_consultations)
        $consultationCount = DB::connection('mysql')
            ->table('sales_prospect_consultations')
            ->whereDate('created_at', $dateStr)
            ->count();

        // 영업 기회 (sales_prospects - tenant_id 없음, created_at 기반)
        $prospectStats = DB::connection('mysql')
            ->table('sales_prospects')
            ->whereDate('created_at', $dateStr)
            ->whereNull('deleted_at')
            ->selectRaw("
                COUNT(*) as created_count,
                SUM(CASE WHEN status = 'contracted' THEN 1 ELSE 0 END) as won_count,
                SUM(CASE WHEN status = 'lost' THEN 1 ELSE 0 END) as lost_count
            ")
            ->first();

        StatQuotePipelineDaily::updateOrCreate(
            ['tenant_id' => $tenantId, 'stat_date' => $dateStr],
            [
                'quote_created_count' => $createdCount,
                'quote_amount' => $quoteStats->total_amount ?? 0,
                'quote_approved_count' => $quoteStats->approved_count ?? 0,
                'quote_rejected_count' => $quoteStats->rejected_count ?? 0,
                'quote_conversion_count' => $conversionCount,
                'quote_conversion_rate' => $conversionRate,
                'prospect_created_count' => $prospectStats->created_count ?? 0,
                'prospect_won_count' => $prospectStats->won_count ?? 0,
                'prospect_lost_count' => $prospectStats->lost_count ?? 0,
                'prospect_amount' => 0, // sales_prospects에 금액 컬럼 없음
                'bidding_count' => $biddingStats->cnt ?? 0,
                'bidding_won_count' => $biddingStats->won_count ?? 0,
                'bidding_amount' => $biddingStats->total_amount ?? 0,
                'consultation_count' => $consultationCount,
            ]
        );

        return 1;
    }

    public function aggregateMonthly(int $tenantId, int $year, int $month): int
    {
        // 견적 도메인은 일간 테이블만 운영 (월간은 Phase 4에서 필요시 추가)
        return 0;
    }
}