<?php

namespace App\Livewire\Invoices;

use App\Models\Branch;
use App\Models\Invoice;
use Illuminate\Database\Eloquent\Builder;
use Livewire\Attributes\Layout;
use Livewire\Component;
use Livewire\WithPagination;

class Index extends Component
{
    use WithPagination;

    public $search = '';

    public $filterStatus = '';

    public $filterBranch = '';

    public $filterDateFrom = '';

    public $filterDateTo = '';

    public $sortField = 'invoice_date';

    public $sortDirection = 'desc';

    protected $queryString = [
        'search' => ['except' => ''],
        'filterStatus' => ['except' => ''],
        'filterBranch' => ['except' => ''],
        'sortField' => ['except' => 'invoice_date'],
        'sortDirection' => ['except' => 'desc'],
    ];

    public function mount()
    {
        // Set default date filter to current month
        $this->filterDateFrom = now()->startOfMonth()->format('Y-m-d');
        $this->filterDateTo = now()->endOfMonth()->format('Y-m-d');
    }

    public function updatingSearch()
    {
        $this->resetPage();
    }

    public function updatingFilterStatus()
    {
        $this->resetPage();
    }

    public function updatingFilterBranch()
    {
        $this->resetPage();
    }

    public function sortBy($field)
    {
        if ($this->sortField === $field) {
            $this->sortDirection = $this->sortDirection === 'asc' ? 'desc' : 'asc';
        } else {
            $this->sortField = $field;
            $this->sortDirection = 'asc';
        }
        $this->resetPage();
    }

    public function clearFilters()
    {
        $this->reset(['search', 'filterStatus', 'filterBranch', 'filterDateFrom', 'filterDateTo']);
        $this->resetPage();
    }

    public function deleteInvoice($invoiceId)
    {
        $invoice = Invoice::findOrFail($invoiceId);

        // Check permissions
        if (! auth()->user()->can('delete', $invoice)) {
            session()->flash('error', 'You do not have permission to delete this invoice.');

            return;
        }

        // Only allow deletion of draft invoices
        if ($invoice->status !== 'draft') {
            session()->flash('error', 'Only draft invoices can be deleted.');

            return;
        }

        $invoice->delete();
        session()->flash('success', 'Invoice deleted successfully.');
    }

    public function markAsPaid($invoiceId)
    {
        $invoice = Invoice::findOrFail($invoiceId);

        if (! auth()->user()->can('update', $invoice)) {
            session()->flash('error', 'You do not have permission to update this invoice.');

            return;
        }

        $invoice->markAsPaid('manual', null, 'Marked as paid from invoice list');
        session()->flash('success', 'Invoice marked as paid.');
    }

    public function sendInvoice($invoiceId)
    {
        $invoice = Invoice::findOrFail($invoiceId);

        if (! auth()->user()->can('update', $invoice)) {
            session()->flash('error', 'You do not have permission to send this invoice.');

            return;
        }

        // This would typically integrate with email service
        $invoice->markAsSent('email', $invoice->customer->email);
        session()->flash('success', 'Invoice sent successfully.');
    }

    public function getInvoicesProperty()
    {
        return Invoice::query()
            ->with(['customer', 'branch', 'createdBy'])
            ->when($this->search, function (Builder $query) {
                $query->where(function ($q) {
                    $q->where('invoice_number', 'like', '%'.$this->search.'%')
                        ->orWhereHas('customer', function ($customerQuery) {
                            $customerQuery->where('first_name', 'like', '%'.$this->search.'%')
                                ->orWhere('last_name', 'like', '%'.$this->search.'%')
                                ->orWhere('email', 'like', '%'.$this->search.'%')
                                ->orWhereRaw("CONCAT(first_name, ' ', last_name) LIKE ?", ['%'.$this->search.'%']);
                        });
                });
            })
            ->when($this->filterStatus, function (Builder $query) {
                $query->where('status', $this->filterStatus);
            })
            ->when($this->filterBranch, function (Builder $query) {
                $query->where('branch_id', $this->filterBranch);
            })
            ->when($this->filterDateFrom, function (Builder $query) {
                $query->where('invoice_date', '>=', $this->filterDateFrom);
            })
            ->when($this->filterDateTo, function (Builder $query) {
                $query->where('invoice_date', '<=', $this->filterDateTo);
            })
            ->orderBy($this->sortField, $this->sortDirection)
            ->paginate(15);
    }

    public function getBranchesProperty()
    {
        return Branch::orderBy('name')->get();
    }

    public function getStatusOptionsProperty()
    {
        return Invoice::getStatusOptions();
    }

    #[Layout('components.layouts.app.sidebar')]
    public function render()
    {
        return view('livewire.invoices.index', [
            'invoices' => $this->invoices,
            'branches' => $this->branches,
            'statusOptions' => $this->statusOptions,
        ]);
    }
}