<?php

namespace Database\Seeders;

use App\Models\Ingredient;
use App\Models\Location;
use App\Models\PackagingItem;
use App\Models\Product;
use App\Models\Production;
use App\Models\StockEntry;
use App\Models\Supplier;
use App\Services\ProductionService;
use App\User;
use Illuminate\Database\Seeder;

/**
 * Demo-Daten für Phase 5 (Produktion): Rezeptur, eingegangene Chargen, Beispiel-Produktionsläufe.
 * Baut auf {@see InventoryStammdatenTestSeeder} auf (Demo-Rohstoffe, Lagerort Köln, Verpackung).
 *
 * Aufruf: php artisan db:seed --class=ProductionDemoSeeder
 */
class ProductionDemoSeeder extends Seeder
{
    public function run(): void
    {
        $this->call(InventoryStammdatenTestSeeder::class);

        $location = Location::query()->where('name', 'Köln')->first()
            ?? Location::query()->where('name', 'Demo Test-Zentrallager')->first()
            ?? Location::query()->first();

        if ($location === null) {
            $this->command?->error('ProductionDemoSeeder: Kein Lagerort gefunden.');

            return;
        }

        $ingShea = Ingredient::query()->where('name', 'Demo Wareneingang Shea Butter')->first();
        $ingMandel = Ingredient::query()->where('name', 'Demo Wareneingang Mandelöl')->first();

        if ($ingShea === null || $ingMandel === null) {
            $this->command?->error('ProductionDemoSeeder: Demo-Inhaltsstoffe fehlen (Shea/Mandel).');

            return;
        }

        $supplierOele = Supplier::query()->where('name', 'Demo-Lieferant Naturöle GmbH')->first();
        if ($supplierOele === null) {
            $this->command?->error('ProductionDemoSeeder: Demo-Lieferant fehlt.');

            return;
        }

        $orderUser = User::query()->where('email', 'demo-wareneingang@example.test')->first();
        if ($orderUser === null) {
            $this->command?->error('ProductionDemoSeeder: User demo-wareneingang@example.test fehlt.');

            return;
        }

        $sheaStock = StockEntry::query()
            ->where('ingredient_id', $ingShea->id)
            ->where('location_id', $location->id)
            ->where('status', 'received')
            ->orderByDesc('id')
            ->first();

        if ($sheaStock === null) {
            $sheaStock = StockEntry::factory()->received()->create([
                'ingredient_id' => $ingShea->id,
                'supplier_id' => $supplierOele->id,
                'location_id' => $location->id,
                'ordered_by' => $orderUser->id,
                'ordered_at' => now()->subMonths(3)->format('Y-m-d'),
                'ordered_quantity' => 8000,
                'price_per_kg' => 8.5,
                'entry_type' => 'ingredient',
                'unit' => 'gram',
                'packaging_item_id' => null,
                'batch_number' => 'DEMO-SHEA-PROD',
                'best_before' => now()->addMonths(18)->format('Y-m-d'),
            ]);
        }

        $mandelStock = StockEntry::query()
            ->where('ingredient_id', $ingMandel->id)
            ->where('location_id', $location->id)
            ->where('status', 'received')
            ->orderByDesc('received_at')
            ->orderByDesc('id')
            ->first();

        if ($mandelStock === null) {
            $mandelStock = StockEntry::factory()->received()->create([
                'ingredient_id' => $ingMandel->id,
                'supplier_id' => $supplierOele->id,
                'location_id' => $location->id,
                'ordered_by' => $orderUser->id,
                'ordered_at' => now()->subMonths(2)->format('Y-m-d'),
                'ordered_quantity' => 5000,
                'price_per_kg' => 9.5,
                'entry_type' => 'ingredient',
                'unit' => 'gram',
                'packaging_item_id' => null,
                'batch_number' => 'DEMO-MANDEL-PROD',
                'best_before' => now()->addMonths(20)->format('Y-m-d'),
            ]);
        }

        $bottle = PackagingItem::query()->where('name', 'Demo Braunglasflasche 30 ml')->first();

        $product = Product::query()->firstOrCreate(
            ['name' => 'Demo Produktion Handcreme 30 ml'],
            [
                'title' => 'Demo Produktion Handcreme 30 ml',
                'active' => true,
                'shelf_life_type' => null,
                'shelf_life_months' => null,
            ]
        );

        if ($product->p_ingredients()->count() === 0) {
            $product->p_ingredients()->sync([
                $ingShea->id => ['pos' => 0, 'gram' => 20, 'factor' => 1],
                $ingMandel->id => ['pos' => 1, 'gram' => 15, 'factor' => 1],
            ]);
        }

        if ($bottle !== null && $product->packagings()->count() === 0) {
            $product->packagings()->sync([
                $bottle->id => ['quantity' => 1, 'pos' => 0],
            ]);
        }

        $service = app(ProductionService::class);

        if (! Production::query()->where('product_id', $product->id)->exists()) {
            $qty = 10;
            $service->store(
                [
                    'product_id' => $product->id,
                    'location_id' => $location->id,
                    'produced_at' => now()->subDays(3)->format('Y-m-d'),
                    'quantity' => $qty,
                    'notes' => 'Seeder: Demo-Produktionslauf (Shea + Mandel, Braunglas).',
                ],
                [
                    [
                        'ingredient_id' => $ingShea->id,
                        'stock_entry_id' => $sheaStock->id,
                        'quantity_used' => (string) (20 * 1 * $qty),
                    ],
                    [
                        'ingredient_id' => $ingMandel->id,
                        'stock_entry_id' => $mandelStock->id,
                        'quantity_used' => (string) (15 * 1 * $qty),
                    ],
                ],
                $orderUser->id
            );
        }

        $mhdStock = StockEntry::query()
            ->where('ingredient_id', $ingMandel->id)
            ->where('location_id', $location->id)
            ->where('status', 'received')
            ->where('batch_number', 'DEMO-MHD-WARNUNG')
            ->first();

        if ($mhdStock === null) {
            $mhdStock = StockEntry::factory()->received()->create([
                'ingredient_id' => $ingMandel->id,
                'supplier_id' => $supplierOele->id,
                'location_id' => $location->id,
                'ordered_by' => $orderUser->id,
                'ordered_at' => now()->subYear()->format('Y-m-d'),
                'ordered_quantity' => 500,
                'price_per_kg' => 9.5,
                'entry_type' => 'ingredient',
                'unit' => 'gram',
                'packaging_item_id' => null,
                'batch_number' => 'DEMO-MHD-WARNUNG',
                'best_before' => '2027-06-01',
                'received_at' => now()->subMonths(6)->format('Y-m-d'),
            ]);
        }

        $productMhd = Product::query()->firstOrCreate(
            ['name' => 'Demo Produktion MHD-Warnung (Test)'],
            [
                'title' => 'Demo MHD-Warnung',
                'active' => true,
                'shelf_life_type' => 'fixed',
                'shelf_life_months' => 24,
            ]
        );

        if ($productMhd->p_ingredients()->count() === 0) {
            $productMhd->p_ingredients()->sync([
                $ingMandel->id => ['pos' => 0, 'gram' => 10, 'factor' => 1],
            ]);
        }

        if (! Production::query()->where('product_id', $productMhd->id)->exists()) {
            $service->store(
                [
                    'product_id' => $productMhd->id,
                    'location_id' => $location->id,
                    'produced_at' => '2026-03-01',
                    'quantity' => 1,
                    'notes' => 'Seeder: MHD-Warnung (Rohstoff-MHD vor Produkt-Ende).',
                ],
                [
                    [
                        'ingredient_id' => $ingMandel->id,
                        'stock_entry_id' => $mhdStock->id,
                        'quantity_used' => '10',
                    ],
                ],
                $orderUser->id
            );
        }

        $this->command?->info(sprintf(
            'ProductionDemoSeeder: Produkt „%s“ (id=%d), MHD-Demo „%s“ (id=%d), Lagerort %s (id=%d).',
            $product->name,
            $product->id,
            $productMhd->name,
            $productMhd->id,
            $location->name,
            $location->id
        ));
    }
}