<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Mail;
use App\Http\Requests\LambdaRequest;
use App\Mail\NeblogisticStatusUpdate;
use League\Csv\Reader;
use Log;

class NeblogisticsOrderSync extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'neblogisticsorders:sync';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Will send Push notification to IOS and Android';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
    // Path to the CSV file (update this path as needed)
    $csvFilePath = storage_path('app/neblogistics_orders.csv');

    if (!file_exists($csvFilePath)) {
        $this->error("CSV file not found at: $csvFilePath");
        return 1;
    }

    try {
        // Use League CSV Reader instead of fgetcsv
        $csv = Reader::createFromPath($csvFilePath, 'r');
        $csv->setHeaderOffset(0);

        $header = $csv->getHeader(); //returns the CSV header record
        $records = $csv->getRecords(); //returns all the CSV records as an Iterator object

        //Log::info('CSV headers found', ['headers' => $header]);
        
        // Debug: Check if we have any records
        $recordArray = iterator_to_array($records);
        Log::info('Total records found in CSV', ['count' => count($recordArray)]);
        
        if (empty($recordArray)) {
            $this->warn("No records found in CSV file");
            return 0;
        }

        $rowCount = 0;
        $updatedCount = 0;
        $notFoundCount = 0;

        foreach ($recordArray as $row) {
            $rowCount++;
            // Map CSV columns to variables
            $orderNo = trim($row['ORDER NO'] ?? '');
            $invoiceNo = trim($row['INVOICE NO'] ?? '');
            $courierName = trim($row['COURIER NAME'] ?? '');
            $lrNo = trim($row['LR NO'] ?? '');
            $lrDate = trim($row['LR DATE'] ?? '');
            $receivedDate = trim($row['RECEIVED DATE'] ?? '');
            $connectOrderId = trim($row['Connect od Order'] ?? '');

            if (empty($courierName)) {
                $this->warn("Skipping row with empty courier name.");
                continue;
            }

            if (empty($connectOrderId)) {
                $this->warn("Skipping row with missing Connect od Order.");
                continue;
            }

            // Find the record in neblogistic table
            $record = DB::table('neblogistic')->where('id', $connectOrderId)->first();

            if (!$record) {
                $this->warn("No neblogistic record found for id: $connectOrderId");
                $notFoundCount++;
                continue;
            }

            // Determine status and notification message
            if (!empty($receivedDate)) {
                $status = 'Delivered';
            } else {
                $status = 'Dispatched';
            }

            // Prepare update data
            $updateData = [
                'order_no'      => $orderNo,
                'invoice_no'    => $invoiceNo,
                'courier_name'  => $courierName,
                'lr_no'         => $lrNo,
                'lr_date'       => !empty($lrDate) ? (
                    ($dt = \DateTime::createFromFormat('d/M/Y', $lrDate)) ? $dt->format('Y-m-d') : null
                ) : null,
                'received_date' => !empty($receivedDate) ? (
                    ($dt2 = \DateTime::createFromFormat('d/M/Y', $receivedDate)) ? $dt2->format('Y-m-d') : null
                ) : null,
                'status'        => $status,
                'updated_at'    => date('Y-m-d', strtotime("now"))
            ];

            $this->info('Processing CSV row for NeblogisticsOrderSync: Row ' . $rowCount . ' - ' . json_encode($updateData));

            //Uncomment the line below to actually update the database
            // Get old data before update for audit trail
            $oldRecord = DB::table('neblogistic')->where('id', $connectOrderId)->first();
            $oldDataArray = $oldRecord ? json_decode(json_encode($oldRecord), true) : null;
            
            DB::table('neblogistic')->where('id', $connectOrderId)->update($updateData);
            
            // Log UPDATE operation (console command - no request object)
            \App\Services\NeblogisticAuditService::logUpdate(
                $connectOrderId,
                $oldDataArray,
                $updateData,
                null,
                null // No request object in console command
            );
            
            $updatedCount++;

            // Check if status has changed from previous status
            $previousStatus = $record->status ?? null;
            $currentStatus = $status;
            
            // Send email notifications if status is Dispatched or Delivered and it's a new status
            if (($currentStatus == 'Dispatched' || $currentStatus == 'Delivered') && 
                ($previousStatus != $currentStatus)) {
                
                $this->info("Status changed from '{$previousStatus}' to '{$currentStatus}' - Sending notifications");
                
                // Prepare email data
                $emailData = array_merge($updateData, [
                    'id' => $connectOrderId,
                    'previous_status' => $previousStatus
                ]);
                
                // Send email to tm_email if available
                if (!empty($record->tm_email)) {
                    try {
                        Mail::to($record->tm_email)->cc('ravigulhane1983@gmail.com')->send(new NeblogisticStatusUpdate($emailData, 'tm'));
                        $this->info("Status update notification sent to TM: {$record->tm_email}");
                        Log::info("Status update email sent to TM", [
                            'email' => $record->tm_email,
                            'orderId' => $connectOrderId,
                            'status' => $currentStatus
                        ]);
                    } catch (\Exception $e) {
                        $this->error("Failed to send email to TM {$record->tm_email}: " . $e->getMessage());
                        Log::error("Failed to send TM email", [
                            'email' => $record->tm_email,
                            'error' => $e->getMessage()
                        ]);
                    }
                }
                
                // Send email to abm_email if available
                if (!empty($record->abm_email)) {
                    try {
                        Mail::to($record->abm_email)->cc('ravigulhane1983@gmail.com')->send(new NeblogisticStatusUpdate($emailData, 'abm'));
                        $this->info("Status update notification sent to ABM: {$record->abm_email}");
                        Log::info("Status update email sent to ABM", [
                            'email' => $record->abm_email,
                            'orderId' => $connectOrderId,
                            'status' => $currentStatus
                        ]);
                    } catch (\Exception $e) {
                        $this->error("Failed to send email to ABM {$record->abm_email}: " . $e->getMessage());
                        Log::error("Failed to send ABM email", [
                            'email' => $record->abm_email,
                            'error' => $e->getMessage()
                        ]);
                    }
                }
            }

        
            // // Fetch tm_email and abm_email from the record (if present)
            // $tmEmail = $record->tm_email ?? null;
            // $abmEmail = $record->abm_email ?? null;

            // // Prepare email notification
            // $subject = "Order {$status}: Order No {$orderNo}";
            // $body = "Dear User,\n\nOrder No: {$orderNo}\nInvoice No: {$invoiceNo}\nCourier: {$courierName}\nLR No: {$lrNo}\nLR Date: {$lrDate}\n";
            // if (!empty($receivedDate)) {
            //     $body .= "Received Date: {$receivedDate}\n";
            // }
            // $body .= "Status: {$status}\n\nThank you.";

            // // Send email to tm_email and abm_email if available
            // $emails = [];
            // if (!empty($tmEmail)) $emails[] = $tmEmail;
            // if (!empty($abmEmail)) $emails[] = $abmEmail;

            // foreach ($emails as $email) {
            //     try {
            //         // You can replace this with Laravel's Mail::to($email)->send(...) if needed
            //         mail($email, $subject, $body);
            //         Log::info("Notification sent to $email for order $orderNo (status: $status)");
            //     } catch (\Exception $e) {
            //         Log::error("Failed to send notification to $email: " . $e->getMessage());
            //     }
            // }
        }

        $this->info("CSV processed. Total rows: $rowCount, Updated: $updatedCount, Not found: $notFoundCount");
        
    } catch (\Exception $e) {
        $this->error("Error processing CSV: " . $e->getMessage());
        Log::error("Error in NeblogisticsOrderSync: " . $e->getMessage());
        return 1;
    }
    }
}