<?php

namespace App\Modules\Maintenance\Traits;

use App\Modules\Maintenance\Models\ProductionLine;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Http\Request;

trait AppliesMaintenanceScope
{
    protected function applyMaintenanceScopeFilters(Builder $query, Request $request, ?string $equipmentRelation = 'equipment'): void
    {
        if ($projectId = $request->get('project_id')) {
            $query->where(function ($q) use ($projectId, $equipmentRelation) {
                $q->where('project_id', $projectId);
                if ($equipmentRelation) {
                    $q->orWhereHas("{$equipmentRelation}.productionLine", fn ($lq) => $lq->where('project_id', $projectId));
                }
            });
        }

        if ($lineId = $request->get('production_line_id')) {
            $query->where(function ($q) use ($lineId, $equipmentRelation) {
                $q->where('production_line_id', $lineId);
                if ($equipmentRelation) {
                    $q->orWhereHas($equipmentRelation, fn ($eq) => $eq->where('production_line_id', $lineId));
                }
            });
        }
    }

    protected function syncScopeFromLine(array $data): array
    {
        if (! empty($data['production_line_id'])) {
            $line = ProductionLine::find($data['production_line_id']);
            if ($line?->project_id) {
                if (empty($data['project_id'])) {
                    $data['project_id'] = $line->project_id;
                } elseif ((int) $data['project_id'] !== (int) $line->project_id) {
                    throw new \InvalidArgumentException('خط تولید به پروژه انتخاب‌شده تعلق ندارد.');
                }
            }
        }

        return $data;
    }

    protected function scopeValidationRules(): array
    {
        return [
            'project_id' => ['nullable', 'exists:pjt_projects,id'],
            'production_line_id' => ['nullable', 'exists:maintenance_production_lines,id'],
        ];
    }

    protected function equipmentIdsValidationRules(bool $required = true): array
    {
        return [
            'equipment_id' => array_filter([
                $required ? 'required_without:equipment_ids' : 'nullable',
                'exists:maintenance_equipment,id',
            ]),
            'equipment_ids' => ['nullable', 'array', 'min:1'],
            'equipment_ids.*' => ['integer', 'exists:maintenance_equipment,id'],
        ];
    }

    protected function resolveEquipmentIds(array $data): array
    {
        if (! empty($data['equipment_ids']) && is_array($data['equipment_ids'])) {
            return array_values(array_unique(array_map('intval', $data['equipment_ids'])));
        }

        if (! empty($data['equipment_id'])) {
            return [(int) $data['equipment_id']];
        }

        return [];
    }
}