<?php

namespace App\Livewire;

use Livewire\Component;
use Livewire\WithFileUploads;
use App\Models\Company;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;
use Illuminate\Http\Response;

class CompanyManagement extends Component
{
    use WithFileUploads;
    
    // Form state
    public $name = '';
    public $tax_id = '';
    public $address = '';
    public $email = '';
    public $website = '';
    public $type = 'other';
    public $notes = '';
    public $apodo = '';
    public $estado = 'activo';
    public $logo = null;
    
    // UI state
    public $showCreateForm = false;
    public $showEditForm = false;
    public $editingCompanyId = null;
    public $search = '';
    
    // Filter state
    public $filterType = '';
    public $filterEstado = '';
    
    // Validation rules
    protected $rules = [
        'name' => 'required|string|max:255',
        'apodo' => 'nullable|string|max:100',
        'tax_id' => 'nullable|string|max:50|unique:companies,tax_id,',
        'estado' => 'required|in:activo,inactivo,suspendido',
        'address' => 'nullable|string',
        'phone' => 'nullable|string|max:20',
        'email' => 'nullable|email|max:255',
        'website' => 'nullable|url|max:255',
        'type' => 'required|in:owner,constructor,subcontractor,consultant,supplier,other',
        'notes' => 'nullable|string',
        'logo' => 'nullable|image|max:2048', // 2MB max
    ];
    
    public function mount()
    {
        if (!Auth::user()->hasRole('Admin')) abort(403);
        $this->resetForm();
    }
    
    public function resetForm()
    {
        $this->name = '';
        $this->tax_id = '';
        $this->address = '';
        $this->phone = '';
        $this->email = '';
        $this->website = '';
        $this->type = 'other';
        $this->notes = '';
        $this->apodo = '';
        $this->estado = 'activo';
        $this->logo = null;
        $this->editingCompanyId = null;
        $this->showCreateForm = false;
        $this->showEditForm = false;
        $this->resetErrorBag();
        $this->resetValidation();
    }
    
    public function resetFilters()
    {
        $this->search = '';
        $this->filterType = '';
        $this->filterEstado = '';
    }
    
    public function toggleCreateForm()
    {
        $this->showCreateForm = !$this->showCreateForm;
        if ($this->showCreateForm) {
            $this->showEditForm = false;
            $this->resetForm();
        }
    }
    
    public function editCompany(Company $company)
    {
        $this->editingCompanyId = $company->id;
        $this->name = $company->name;
        $this->tax_id = $company->tax_id;
        $this->address = $company->address;
        $this->phone = $company->phone;
        $this->email = $company->email;
        $this->website = $company->website;
        $this->type = $company->type;
        $this->notes = $company->notes;
        $this->apodo = $company->apodo;
        $this->estado = $company->estado;
        // Note: logo is not populated for security reasons
        $this->showEditForm = true;
        $this->showCreateForm = false;
    }
    
    public function updateCompany()
    {
        if (!Auth::user()->hasRole('Admin')) abort(403);
        $this->validate();
        
        $company = Company::findOrFail($this->editingCompanyId);
        
        $data = [
            'name' => $this->name,
            'tax_id' => $this->tax_id,
            'address' => $this->address,
            'phone' => $this->phone,
            'email' => $this->email,
            'website' => $this->website,
            'type' => $this->type,
            'notes' => $this->notes,
        ];
        
        if ($this->logo) {
            $logoPath = $this->logo->store('company-logos', 'public');
            $data['logo_path'] = $logoPath;
        }
        
        $company->update($data);
        
        session()->flash('message', 'Empresa actualizada correctamente.');
        $this->resetForm();
    }
    
    public function createCompany()
    {
        if (!Auth::user()->hasRole('Admin')) abort(403);
        $this->validate();
        
        $data = [
            'name' => $this->name,
            'tax_id' => $this->tax_id,
            'address' => $this->address,
            'phone' => $this->phone,
            'email' => $this->email,
            'website' => $this->website,
            'type' => $this->type,
            'notes' => $this->notes,
        ];
        
        if ($this->logo) {
            $logoPath = $this->logo->store('company-logos', 'public');
            $data['logo_path'] = $logoPath;
        }
        
        Company::create($data);
        
        session()->flash('message', 'Empresa creada correctamente.');
        $this->resetForm();
    }
    
    public function deleteCompany(Company $company)
    {
        if (!Auth::user()->hasRole('Admin')) abort(403);
        $company->delete(); // Soft delete
        session()->flash('message', 'Empresa eliminada correctamente.');
    }
    
    public function getCompaniesProperty()
    {
        return Company::when($this->search, function ($query) {
            $query->where('name', 'like', '%' . $this->search . '%')
                  ->orWhere('apodo', 'like', '%' . $this->search . '%')
                  ->orWhere('tax_id', 'like', '%' . $this->search . '%');
        })
        ->when($this->filterType, function ($query) {
            $query->where('type', $this->filterType);
        })
        ->when($this->filterEstado, function ($query) {
            $query->where('estado', $this->filterEstado);
        })
        ->withCount('projects') // Eager load project count
        ->orderBy('name')
        ->get();
    }
    
    public function exportCsv()
    {
        $companies = $this->getCompaniesProperty();
        
        // Create CSV content
        $headers = [
            "Content-type: text/csv",
            "Content-Disposition: attachment; filename=empresas.csv",
            "Pragma: no-cache",
            "Cache-Control: must-revalidate, post-check=0, pre-check=0",
            "Expires: 0"
        ];
        
        $callback = function() use ($companies) {
            $handle = fopen('php://output', 'w');
            // Add BOM for UTF-8 in Excel
            fprintf($handle, chr(0xEF).chr(0xBB).chr(0xBF));
            
            // Header row
            fputcsv($handle, ['Nombre', 'Apodo', 'NIF/Tax ID', 'Tipo', 'Estado', 'Dirección', 'Teléfono', 'Email', 'Website', 'Proyectos Asociados', 'Fecha Creación']);
            
            foreach ($companies as $company) {
                fputcsv($handle, [
                    $company->name,
                    $company->apodo ?? '',
                    $company->tax_id ?? '',
                    $company->type,
                    $company->estado,
                    $company->address ?? '',
                    $company->phone ?? '',
                    $company->email ?? '',
                    $company->website ?? '',
                    $company->projects_count ?? 0,
                    $company->created_at ? $company->created_at->format('d/m/Y H:i') : ''
                ]);
            }
            
            fclose($handle);
        };
        
        return response()->stream($callback, 200, $headers);
    }
    
    public function render()
    {
        return view('livewire.company-management');
    }
}