<?php

namespace Database\Seeders\Demo;

use Illuminate\Support\Facades\DB;

/**
 * 제조업 데모 프리셋 시더
 *
 * 데모 쇼케이스 테넌트용 샘플 데이터를 생성한다.
 * DatabaseSeeder에 등록하지 않으며, ResetDemoShowcaseCommand에서만 호출된다.
 *
 * 기존 코드/데이터에 영향 없음: 지정된 tenant_id에만 데이터 생성
 *
 * @see docs/features/sales/demo-tenant-policy.md
 */
class ManufacturingPresetSeeder
{
    public function run(int $tenantId): void
    {
        $now = now();

        // 1. 부서
        $this->seedDepartments($tenantId, $now);

        // 2. 거래처
        $clientIds = $this->seedClients($tenantId, $now);

        // 3. 품목 (원자재, 반제품, 완제품)
        $this->seedItems($tenantId, $now);

        // 4. 견적
        $this->seedQuotes($tenantId, $clientIds, $now);

        // 5. 수주
        $this->seedOrders($tenantId, $clientIds, $now);

        // 6. 통계 데이터 (대시보드 차트용, 최근 90일)
        $this->seedStatData($tenantId);
    }

    private function seedDepartments(int $tenantId, $now): void
    {
        $parentId = DB::table('departments')->insertGetId([
            'tenant_id' => $tenantId,
            'name' => '데모제조(주)',
            'parent_id' => null,
            'is_active' => true,
            'sort_order' => 0,
            'created_at' => $now,
            'updated_at' => $now,
        ]);

        $departments = [
            ['name' => '경영지원팀', 'sort_order' => 1],
            ['name' => '영업팀', 'sort_order' => 2],
            ['name' => '생산팀', 'sort_order' => 3],
            ['name' => '품질관리팀', 'sort_order' => 4],
            ['name' => '자재팀', 'sort_order' => 5],
        ];

        foreach ($departments as $dept) {
            DB::table('departments')->insert([
                'tenant_id' => $tenantId,
                'name' => $dept['name'],
                'parent_id' => $parentId,
                'is_active' => true,
                'sort_order' => $dept['sort_order'],
                'created_at' => $now,
                'updated_at' => $now,
            ]);
        }
    }

    private function seedClients(int $tenantId, $now): array
    {
        $clients = [
            ['code' => 'C-DEMO-001', 'name' => '(주)한국철강', 'type' => 'SUPPLIER', 'business_no' => '123-45-67890', 'phone' => '02-1234-5678'],
            ['code' => 'C-DEMO-002', 'name' => '삼성전자(주)', 'type' => 'CUSTOMER', 'business_no' => '234-56-78901', 'phone' => '02-2345-6789'],
            ['code' => 'C-DEMO-003', 'name' => '(주)대한물산', 'type' => 'CUSTOMER', 'business_no' => '345-67-89012', 'phone' => '02-3456-7890'],
            ['code' => 'C-DEMO-004', 'name' => '현대부품(주)', 'type' => 'SUPPLIER', 'business_no' => '456-78-90123', 'phone' => '031-4567-8901'],
            ['code' => 'C-DEMO-005', 'name' => '동양기계(주)', 'type' => 'BOTH', 'business_no' => '567-89-01234', 'phone' => '032-5678-9012'],
            ['code' => 'C-DEMO-006', 'name' => '(주)서울유통', 'type' => 'CUSTOMER', 'business_no' => '678-90-12345', 'phone' => '02-6789-0123'],
            ['code' => 'C-DEMO-007', 'name' => '부산산업(주)', 'type' => 'SUPPLIER', 'business_no' => '789-01-23456', 'phone' => '051-7890-1234'],
            ['code' => 'C-DEMO-008', 'name' => '(주)글로벌테크', 'type' => 'CUSTOMER', 'business_no' => '890-12-34567', 'phone' => '02-8901-2345'],
            ['code' => 'C-DEMO-009', 'name' => '인천금속(주)', 'type' => 'SUPPLIER', 'business_no' => '901-23-45678', 'phone' => '032-9012-3456'],
            ['code' => 'C-DEMO-010', 'name' => '(주)한빛전자', 'type' => 'CUSTOMER', 'business_no' => '012-34-56789', 'phone' => '02-0123-4567'],
        ];

        $ids = [];
        foreach ($clients as $client) {
            $ids[] = DB::table('clients')->insertGetId([
                'tenant_id' => $tenantId,
                'client_code' => $client['code'],
                'name' => $client['name'],
                'client_type' => $client['type'],
                'business_no' => $client['business_no'],
                'phone' => $client['phone'],
                'is_active' => true,
                'created_at' => $now,
                'updated_at' => $now,
            ]);
        }

        return $ids;
    }

    private function seedItems(int $tenantId, $now): void
    {
        // 원자재
        $rawMaterials = [
            ['code' => 'RM-001', 'name' => 'STS304 스테인리스 판재 (1.0t)', 'unit' => 'EA'],
            ['code' => 'RM-002', 'name' => 'STS304 스테인리스 판재 (1.5t)', 'unit' => 'EA'],
            ['code' => 'RM-003', 'name' => '알루미늄 프로파일 40x40', 'unit' => 'M'],
            ['code' => 'RM-004', 'name' => '알루미늄 프로파일 60x60', 'unit' => 'M'],
            ['code' => 'RM-005', 'name' => 'SS400 철판 (3.0t)', 'unit' => 'EA'],
            ['code' => 'RM-006', 'name' => '동파이프 15A', 'unit' => 'M'],
            ['code' => 'RM-007', 'name' => '볼트 M8x20 STS', 'unit' => 'EA'],
            ['code' => 'RM-008', 'name' => '볼트 M10x30 STS', 'unit' => 'EA'],
            ['code' => 'RM-009', 'name' => '고무 패킹 (50mm)', 'unit' => 'EA'],
            ['code' => 'RM-010', 'name' => '에폭시 도료 (20L)', 'unit' => 'CAN'],
        ];

        foreach ($rawMaterials as $rm) {
            DB::table('items')->insert([
                'tenant_id' => $tenantId,
                'code' => $rm['code'],
                'name' => $rm['name'],
                'unit' => $rm['unit'],
                'item_type' => 'MATERIAL',
                'is_active' => true,
                'created_at' => $now,
                'updated_at' => $now,
            ]);
        }

        // 반제품
        $subAssemblies = [
            ['code' => 'SA-001', 'name' => '프레임 조립체 A', 'unit' => 'EA'],
            ['code' => 'SA-002', 'name' => '프레임 조립체 B', 'unit' => 'EA'],
            ['code' => 'SA-003', 'name' => '구동부 어셈블리', 'unit' => 'SET'],
            ['code' => 'SA-004', 'name' => '제어 패널 유닛', 'unit' => 'EA'],
            ['code' => 'SA-005', 'name' => '하우징 케이스', 'unit' => 'EA'],
        ];

        foreach ($subAssemblies as $sa) {
            DB::table('items')->insert([
                'tenant_id' => $tenantId,
                'code' => $sa['code'],
                'name' => $sa['name'],
                'unit' => $sa['unit'],
                'item_type' => 'SUBASSEMBLY',
                'is_active' => true,
                'created_at' => $now,
                'updated_at' => $now,
            ]);
        }

        // 완제품
        $finishedProducts = [
            ['code' => 'FP-001', 'name' => '자동화 컨베이어 시스템 (표준형)', 'unit' => 'SET'],
            ['code' => 'FP-002', 'name' => '자동화 컨베이어 시스템 (고속형)', 'unit' => 'SET'],
            ['code' => 'FP-003', 'name' => '산업용 로봇암 (6축)', 'unit' => 'EA'],
            ['code' => 'FP-004', 'name' => '정밀 CNC 가공기', 'unit' => 'EA'],
            ['code' => 'FP-005', 'name' => '유압 프레스 (50톤)', 'unit' => 'EA'],
        ];

        foreach ($finishedProducts as $p) {
            DB::table('items')->insert([
                'tenant_id' => $tenantId,
                'code' => $p['code'],
                'name' => $p['name'],
                'unit' => $p['unit'],
                'item_type' => 'PRODUCT',
                'is_active' => true,
                'created_at' => $now,
                'updated_at' => $now,
            ]);
        }
    }

    private function seedQuotes(int $tenantId, array $clientIds, $now): void
    {
        $quotes = [
            ['no' => 'QT-2026-001', 'client_idx' => 1, 'name' => '컨베이어 시스템 표준형', 'qty' => 2, 'amount' => 45000000, 'status' => 'approved'],
            ['no' => 'QT-2026-002', 'client_idx' => 2, 'name' => '로봇암 6축 3대', 'qty' => 3, 'amount' => 120000000, 'status' => 'sent'],
            ['no' => 'QT-2026-003', 'client_idx' => 5, 'name' => 'CNC 가공기 설치', 'qty' => 1, 'amount' => 85000000, 'status' => 'finalized'],
            ['no' => 'QT-2026-004', 'client_idx' => 7, 'name' => '유압프레스 2대', 'qty' => 2, 'amount' => 60000000, 'status' => 'draft'],
            ['no' => 'QT-2026-005', 'client_idx' => 9, 'name' => '컨베이어 고속형', 'qty' => 1, 'amount' => 55000000, 'status' => 'converted'],
        ];

        foreach ($quotes as $q) {
            $supplyAmount = $q['amount'];
            $taxAmount = (int) round($supplyAmount * 0.1);

            DB::table('quotes')->insert([
                'tenant_id' => $tenantId,
                'quote_number' => $q['no'],
                'quote_type' => 'manufacturing',
                'registration_date' => now()->subDays(rand(10, 60))->toDateString(),
                'client_id' => $clientIds[$q['client_idx']] ?? $clientIds[0],
                'product_category' => 'STEEL',
                'product_name' => $q['name'],
                'quantity' => $q['qty'],
                'subtotal' => $supplyAmount,
                'discount_rate' => 0,
                'discount_amount' => 0,
                'total_amount' => $supplyAmount + $taxAmount,
                'status' => $q['status'],
                'current_revision' => 1,
                'is_final' => $q['status'] === 'finalized' || $q['status'] === 'converted',
                'created_at' => $now,
                'updated_at' => $now,
            ]);
        }
    }

    private function seedOrders(int $tenantId, array $clientIds, $now): void
    {
        $orders = [
            ['no' => 'SO-2026-001', 'client_idx' => 1, 'status' => 'CONFIRMED', 'qty' => 2, 'supply' => 45000000],
            ['no' => 'SO-2026-002', 'client_idx' => 2, 'status' => 'IN_PRODUCTION', 'qty' => 3, 'supply' => 120000000],
            ['no' => 'SO-2026-003', 'client_idx' => 5, 'status' => 'COMPLETED', 'qty' => 1, 'supply' => 85000000],
            ['no' => 'SO-2026-004', 'client_idx' => 7, 'status' => 'SHIPPED', 'qty' => 2, 'supply' => 60000000],
            ['no' => 'SO-2026-005', 'client_idx' => 9, 'status' => 'DRAFT', 'qty' => 1, 'supply' => 55000000],
            ['no' => 'SO-2026-006', 'client_idx' => 1, 'status' => 'CONFIRMED', 'qty' => 5, 'supply' => 30000000],
            ['no' => 'SO-2026-007', 'client_idx' => 2, 'status' => 'IN_PRODUCTION', 'qty' => 1, 'supply' => 95000000],
            ['no' => 'SO-2026-008', 'client_idx' => 5, 'status' => 'CONFIRMED', 'qty' => 4, 'supply' => 72000000],
        ];

        foreach ($orders as $o) {
            $taxAmount = (int) round($o['supply'] * 0.1);

            DB::table('orders')->insert([
                'tenant_id' => $tenantId,
                'order_no' => $o['no'],
                'order_type_code' => 'ORDER',
                'status_code' => $o['status'],
                'client_id' => $clientIds[$o['client_idx']] ?? $clientIds[0],
                'quantity' => $o['qty'],
                'supply_amount' => $o['supply'],
                'tax_amount' => $taxAmount,
                'total_amount' => $o['supply'] + $taxAmount,
                'received_at' => now()->subDays(rand(5, 45))->toDateString(),
                'delivery_date' => now()->addDays(rand(10, 60))->toDateString(),
                'created_at' => $now,
                'updated_at' => $now,
            ]);
        }
    }

    private function seedStatData(int $tenantId): void
    {
        // sam_stat DB에 통계 데이터가 있어야 대시보드 차트가 의미있게 보인다.
        // 최근 90일치 일간 매출/생산 통계를 시드한다.
        $statConnection = 'sam_stat';

        // sam_stat 연결이 설정되어 있지 않으면 스킵
        if (! config("database.connections.{$statConnection}")) {
            return;
        }

        // 테이블 존재 여부 확인
        try {
            $hasSalesTable = \Schema::connection($statConnection)->hasTable('stat_sales_daily');
            $hasProductionTable = \Schema::connection($statConnection)->hasTable('stat_production_daily');
        } catch (\Exception $e) {
            return; // sam_stat DB 접속 불가 시 스킵
        }

        $today = now()->startOfDay();

        // 매출 통계 (90일)
        if ($hasSalesTable) {
            $salesData = [];
            for ($i = 89; $i >= 0; $i--) {
                $date = $today->copy()->subDays($i);

                // 주말은 거래 없음
                if ($date->isWeekend()) {
                    continue;
                }

                // 계절성 반영 — 월초에 주문 많고, 중반에 매출 확정
                $dayOfMonth = $date->day;
                $orderBase = ($dayOfMonth <= 10) ? rand(2, 5) : rand(0, 3);
                $salesBase = ($dayOfMonth >= 10 && $dayOfMonth <= 25) ? rand(1, 4) : rand(0, 2);

                // 성장 트렌드 (최근일수록 약간 증가)
                $growthFactor = 1.0 + (90 - $i) * 0.003;

                $orderCount = (int) round($orderBase * $growthFactor);
                $orderAmount = $orderCount * rand(15000000, 65000000);
                $salesCount = (int) round($salesBase * $growthFactor);
                $salesAmount = $salesCount * rand(20000000, 70000000);

                $salesData[] = [
                    'tenant_id' => $tenantId,
                    'stat_date' => $date->toDateString(),
                    'order_count' => $orderCount,
                    'order_amount' => $orderAmount,
                    'order_item_count' => $orderCount * rand(2, 8),
                    'sales_count' => $salesCount,
                    'sales_amount' => $salesAmount,
                    'sales_tax_amount' => (int) round($salesAmount * 0.1),
                    'new_client_count' => rand(0, 1),
                    'active_client_count' => rand(5, 10),
                    'order_draft_count' => rand(0, 2),
                    'order_confirmed_count' => rand(1, 3),
                    'order_in_progress_count' => rand(1, 4),
                    'order_completed_count' => rand(0, 2),
                    'order_cancelled_count' => rand(0, 1) > 0 ? 0 : rand(0, 1),
                    'shipment_count' => $salesCount,
                    'shipment_amount' => $salesAmount,
                    'created_at' => now(),
                    'updated_at' => now(),
                ];
            }

            // 기존 데이터 삭제 후 삽입
            DB::connection($statConnection)->table('stat_sales_daily')
                ->where('tenant_id', $tenantId)
                ->delete();

            // 청크 단위 삽입
            foreach (array_chunk($salesData, 30) as $chunk) {
                DB::connection($statConnection)->table('stat_sales_daily')->insert($chunk);
            }
        }

        // 생산 통계 (90일)
        if ($hasProductionTable) {
            $prodData = [];
            for ($i = 89; $i >= 0; $i--) {
                $date = $today->copy()->subDays($i);

                if ($date->isWeekend()) {
                    continue;
                }

                $growthFactor = 1.0 + (90 - $i) * 0.002;

                $productionQty = (int) round(rand(50, 150) * $growthFactor);
                $defectQty = (int) round($productionQty * rand(10, 40) / 1000); // 1~4% 불량률
                $defectRate = $productionQty > 0 ? round($defectQty / $productionQty * 100, 2) : 0;

                $plannedHours = rand(40, 80);
                $actualHours = $plannedHours + rand(-10, 5);
                $efficiencyRate = $actualHours > 0 ? round($plannedHours / $actualHours * 100, 2) : 0;

                $onTime = rand(3, 8);
                $late = rand(0, 2);
                $deliveryRate = ($onTime + $late) > 0
                    ? round($onTime / ($onTime + $late) * 100, 2) : 100;

                $prodData[] = [
                    'tenant_id' => $tenantId,
                    'stat_date' => $date->toDateString(),
                    'wo_created_count' => rand(2, 6),
                    'wo_completed_count' => rand(1, 5),
                    'wo_in_progress_count' => rand(3, 10),
                    'wo_overdue_count' => rand(0, 2),
                    'production_qty' => $productionQty,
                    'defect_qty' => $defectQty,
                    'defect_rate' => $defectRate,
                    'planned_hours' => $plannedHours,
                    'actual_hours' => $actualHours,
                    'efficiency_rate' => min($efficiencyRate, 120),
                    'active_worker_count' => rand(8, 20),
                    'issue_count' => rand(0, 3),
                    'on_time_delivery_count' => $onTime,
                    'late_delivery_count' => $late,
                    'delivery_rate' => $deliveryRate,
                    'created_at' => now(),
                    'updated_at' => now(),
                ];
            }

            DB::connection($statConnection)->table('stat_production_daily')
                ->where('tenant_id', $tenantId)
                ->delete();

            foreach (array_chunk($prodData, 30) as $chunk) {
                DB::connection($statConnection)->table('stat_production_daily')->insert($chunk);
            }
        }
    }
}