<?php

namespace App\Http\Requests\Inventory;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;
use Illuminate\Validation\Validator;

class StoreStockEntryRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    /**
     * @return array<string, array<int, mixed>>
     */
    public function rules(): array
    {
        return [
            'entry_type' => ['required', Rule::in(['ingredient', 'packaging', 'shipping'])],
            'ingredient_id' => ['nullable', 'integer', 'exists:ingredients,id'],
            'packaging_item_id' => ['nullable', 'integer', 'exists:packaging_items,id'],
            'supplier_id' => ['required', 'integer', 'exists:suppliers,id'],
            'location_id' => ['required', 'integer', 'exists:locations,id'],
            'ordered_at' => ['required', 'date'],
            'ordered_quantity' => ['required', 'numeric', 'min:0.000001'],
            'quality_id' => ['nullable', 'integer', 'exists:material_qualities,id'],
            'price_per_kg' => ['nullable', 'numeric', 'min:0'],
            'price_total' => ['nullable', 'numeric', 'min:0'],
        ];
    }

    /**
     * @return array<string, string>
     */
    public function messages(): array
    {
        return [
            'quality_id.required' => __('Bitte eine Rohstoffqualität wählen.'),
            'price_per_kg.required' => __('Bitte den Netto-Preis pro kg angeben.'),
            'price_total.required' => __('Bitte den Gesamtpreis netto angeben.'),
        ];
    }

    protected function prepareForValidation(): void
    {
        $this->merge([
            'ordered_quantity' => reFormatNumber($this->input('ordered_quantity')),
            'price_per_kg' => $this->filled('price_per_kg') ? reFormatNumber($this->input('price_per_kg')) : null,
            'price_total' => $this->filled('price_total') ? reFormatNumber($this->input('price_total')) : null,
        ]);
    }

    public function withValidator(Validator $validator): void
    {
        $validator->after(function (Validator $validator): void {
            $type = $this->input('entry_type');
            if ($type === 'ingredient') {
                if (empty($this->input('ingredient_id'))) {
                    $validator->errors()->add('ingredient_id', __('Bitte einen Inhaltsstoff wählen.'));
                }
                if (empty($this->input('quality_id'))) {
                    $validator->errors()->add('quality_id', __('Bitte eine Rohstoffqualität wählen.'));
                }
                if (! is_numeric($this->input('price_per_kg')) || (float) $this->input('price_per_kg') <= 0) {
                    $validator->errors()->add('price_per_kg', __('Bitte den Netto-Preis pro kg angeben.'));
                }
            } elseif (! empty($type)) {
                if (empty($this->input('packaging_item_id'))) {
                    $validator->errors()->add('packaging_item_id', __('Bitte einen Verpackungsartikel wählen.'));
                }
                if (! is_numeric($this->input('price_total')) || (float) $this->input('price_total') <= 0) {
                    $validator->errors()->add('price_total', __('Bitte den Gesamtpreis netto angeben.'));
                }
            }
        });
    }

    /**
     * @return array<string, mixed>
     */
    public function validatedPayload(): array
    {
        $data = $this->validated();
        if (($data['entry_type'] ?? '') === 'ingredient') {
            $data['packaging_item_id'] = null;
        } else {
            $data['ingredient_id'] = null;
            $data['quality_id'] = null;
        }

        return $data;
    }
}