<?php

namespace Modules\Maintenance\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Modules\Maintenance\Http\Controllers\Concerns\AuthorizesMaintenance;
use Modules\Maintenance\Models\Equipment;
use Modules\Maintenance\Models\EquipmentPart;
use Modules\Maintenance\Models\PartCatalog;
use Modules\Maintenance\Models\SparePart;
use Modules\Maintenance\Utils\MaintenanceUtil;

class EquipmentPartController extends Controller
{
    use AuthorizesMaintenance;

    public function __construct(
        protected MaintenanceUtil $maintenanceUtil
    ) {}

    public function create($equipment_id)
    {
        $this->authorizeMaintenanceAccess('maintenance.equipment.update');

        $business_id = $this->maintenanceUtil->getBusinessId();
        $equipment = Equipment::where('business_id', $business_id)->findOrFail($equipment_id);

        return view('maintenance::equipment_parts.create', [
            'equipment' => $equipment,
            'parent_parts' => $this->maintenanceUtil->getEquipmentPartsDropdown($equipment->id),
            'part_catalogs' => $this->maintenanceUtil->getPartCatalogsDropdown($business_id),
            'spare_parts' => $this->maintenanceUtil->getSparePartsDropdown($business_id),
            'part_types' => $this->maintenanceUtil->partTypeLabels(),
            'warranty_statuses' => $this->maintenanceUtil->warrantyStatusLabels(),
        ]);
    }

    public function store(Request $request, $equipment_id)
    {
        $this->authorizeMaintenanceAccess('maintenance.equipment.update');

        $business_id = $this->maintenanceUtil->getBusinessId();
        $equipment = Equipment::where('business_id', $business_id)->findOrFail($equipment_id);

        $data = $this->validatePart($request);
        $data = $this->enrichFromCatalogOrSpare($data);

        if (! empty($data['warranty_expires_at'])) {
            $data['warranty_expires_at'] = $this->maintenanceUtil->parseInputDate($data['warranty_expires_at']);
        }
        if (! empty($data['expected_replacement_date'])) {
            $data['expected_replacement_date'] = $this->maintenanceUtil->parseInputDate($data['expected_replacement_date']);
        }

        EquipmentPart::create(array_merge($data, [
            'business_id' => $business_id,
            'equipment_id' => $equipment->id,
            'quantity' => $data['quantity'] ?? 1,
            'is_consumable' => $request->boolean('is_consumable'),
            'is_critical' => $request->boolean('is_critical'),
        ]));

        return $this->maintenanceUtil->jsonOrRedirect(
            $request,
            true,
            'قطعه به تجهیز اضافه شد.',
            action([EquipmentController::class, 'show'], [$equipment->id]).'#tab_parts'
        );
    }

    public function edit($equipment_id, $id)
    {
        $this->authorizeMaintenanceAccess('maintenance.equipment.update');

        $business_id = $this->maintenanceUtil->getBusinessId();
        $equipment = Equipment::where('business_id', $business_id)->findOrFail($equipment_id);
        $part = EquipmentPart::where('equipment_id', $equipment->id)->findOrFail($id);

        return view('maintenance::equipment_parts.edit', [
            'equipment' => $equipment,
            'part' => $part,
            'parent_parts' => $this->maintenanceUtil->getEquipmentPartsDropdown($equipment->id, $part->id),
            'part_catalogs' => $this->maintenanceUtil->getPartCatalogsDropdown($business_id),
            'spare_parts' => $this->maintenanceUtil->getSparePartsDropdown($business_id),
            'part_types' => $this->maintenanceUtil->partTypeLabels(),
            'warranty_statuses' => $this->maintenanceUtil->warrantyStatusLabels(),
        ]);
    }

    public function update(Request $request, $equipment_id, $id)
    {
        $this->authorizeMaintenanceAccess('maintenance.equipment.update');

        $business_id = $this->maintenanceUtil->getBusinessId();
        $equipment = Equipment::where('business_id', $business_id)->findOrFail($equipment_id);
        $part = EquipmentPart::where('equipment_id', $equipment->id)->findOrFail($id);

        $data = $this->validatePart($request, true);
        if (isset($data['parent_id']) && (int) $data['parent_id'] === (int) $part->id) {
            return $this->maintenanceUtil->jsonOrRedirect($request, false, 'قطعه نمی‌تواند والد خودش باشد.');
        }

        $data = $this->enrichFromCatalogOrSpare($data);
        $data['is_consumable'] = $request->boolean('is_consumable');
        $data['is_critical'] = $request->boolean('is_critical');

        if (array_key_exists('warranty_expires_at', $data)) {
            $data['warranty_expires_at'] = $this->maintenanceUtil->parseInputDate($data['warranty_expires_at']);
        }
        if (array_key_exists('expected_replacement_date', $data)) {
            $data['expected_replacement_date'] = $this->maintenanceUtil->parseInputDate($data['expected_replacement_date']);
        }

        $part->update($data);

        return $this->maintenanceUtil->jsonOrRedirect(
            $request,
            true,
            'قطعه به‌روزرسانی شد.',
            action([EquipmentController::class, 'show'], [$equipment->id]).'#tab_parts'
        );
    }

    public function destroy(Request $request, $equipment_id, $id)
    {
        $this->authorizeMaintenanceAccess('maintenance.equipment.update');

        $business_id = $this->maintenanceUtil->getBusinessId();
        $equipment = Equipment::where('business_id', $business_id)->findOrFail($equipment_id);
        $part = EquipmentPart::where('equipment_id', $equipment->id)->findOrFail($id);
        $part->delete();

        if ($request->ajax() || $request->wantsJson()) {
            return response()->json(['success' => true, 'msg' => 'قطعه حذف شد.']);
        }

        return $this->maintenanceUtil->jsonOrRedirect(
            $request,
            true,
            'قطعه حذف شد.',
            action([EquipmentController::class, 'show'], [$equipment->id]).'#tab_parts'
        );
    }

    private function validatePart(Request $request, bool $partial = false): array
    {
        $required = $partial ? 'sometimes' : 'nullable';

        return $request->validate([
            'parent_id' => [$required, 'nullable', 'exists:maintenance_equipment_parts,id'],
            'spare_part_id' => ['nullable', 'exists:maintenance_spare_parts,id'],
            'part_catalog_id' => ['nullable', 'exists:maintenance_part_catalogs,id'],
            'part_name' => [$partial ? 'sometimes' : 'required_without:spare_part_id', 'nullable', 'string', 'max:255'],
            'part_code' => ['nullable', 'string', 'max:100'],
            'quantity' => ['nullable', 'numeric', 'min:0'],
            'unit' => ['nullable', 'string', 'max:50'],
            'part_type' => ['sometimes', 'string', 'in:mechanical,electronic,consumable,hydraulic,pneumatic'],
            'responsibility' => ['sometimes', 'string', 'in:ours,vendor,shared'],
            'responsibility_party_name' => ['nullable', 'string', 'max:255'],
            'warranty_status' => ['sometimes', 'string', 'in:none,active,expired'],
            'warranty_provider' => ['nullable', 'string', 'max:255'],
            'warranty_expires_at' => ['nullable', 'string'],
            'expected_replacement_date' => ['nullable', 'string'],
            'replacement_interval_days' => ['nullable', 'integer', 'min:0'],
            'health_percentage' => ['nullable', 'numeric', 'min:0', 'max:100'],
            'notes' => ['nullable', 'string'],
        ]);
    }

    private function enrichFromCatalogOrSpare(array $data): array
    {
        if (! empty($data['spare_part_id'])) {
            $spare = SparePart::find($data['spare_part_id']);
            if ($spare) {
                $data['part_name'] = $data['part_name'] ?? $spare->name;
                $data['part_code'] = $data['part_code'] ?? $spare->part_number;
                $data['unit'] = $data['unit'] ?? $spare->unit;
            }
        }

        if (! empty($data['part_catalog_id'])) {
            $catalog = PartCatalog::find($data['part_catalog_id']);
            if ($catalog) {
                $data['part_name'] = $data['part_name'] ?? $catalog->name;
                $data['part_code'] = $data['part_code'] ?? $catalog->catalog_code;
                $data['part_type'] = $data['part_type'] ?? $catalog->part_type;
                $data['is_consumable'] = $data['is_consumable'] ?? $catalog->is_consumable;
            }
        }

        return $data;
    }
}