<?php

namespace App\Http\Controllers\CsvController;

use App\Http\Controllers\Controller;
use Error;
use Illuminate\Support\Facades\Log;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Csv;
use PhpOffice\PhpSpreadsheet\Writer\Xls;
use PhpOffice\PhpSpreadsheet\Writer\Ods;
use RuntimeException;

class CsvController extends Controller
{
    private $csv_data_init;

    private $csv_data_handling;

    public function __construct($calculate_agent_cost = false)
    {
        $this->calculate_agent_cost = $calculate_agent_cost || config('app.gitea_calculate_agent_cost');
        $this->csv_data_init = new CsvDataInit();
        $this->csv_data_handling = new CsvDataHandling($this->calculate_agent_cost);
        $this->third_party_integrations_allow = config('app.third_party_integrations_allow', false);
    }

    function create_columns(array $issue, array $issue_time, array $company_agents = [])
    {
        try {
            $array = $this->csv_data_init->initialize_csv_data($issue);
            $array = $this->csv_data_init->handle_labels($array, $issue['labels']);
            $array = $this->csv_data_handling->handle_csv_time($array, $issue, $issue_time, $company_agents, $this->calculate_agent_cost);
            return $array;
        } catch (Error $e) {
            Log::error('E-CSV-COLUMNS - ' . $e->getMessage());
            throw new RuntimeException("E-CSV-GEN");
        }
    }

    private function create_calc_document($reader, $file_name, $is_xls = false)
    {
        // Determine the appropriate writer based on the file type
        $file_extension = $is_xls ? '.xls' : '.csv';
        $writerClass = $is_xls ? Xls::class : Csv::class;
        // Create the writer instance
        $writer = new $writerClass($reader);
        $file_name = $file_name . $file_extension;
        $file_path = storage_path() . '/app/' . $file_name;
        $writer->save($file_path);

        //Define header information
        header('Content-Description: File Transfer');
        header('Content-Type: application/octet-stream');
        header("Cache-Control: no-cache, must-revalidate");
        header("Expires: 0");
        header('Content-Disposition: attachment; filename="' . basename($file_name) . '"');
        header('Content-Length: ' . filesize($file_path));
        header('Pragma: public');

        //Terminate from the script
        return ['file_name' => $file_name, 'file_path' => $file_path];
    }

    function create_csv(string $issues_params_state, string $from_date, string $to_date, array $data)
    {
        try {
            $file_name = $issues_params_state . "_issues_from_" . $from_date . "_to_" . $to_date;
            $reader = new Spreadsheet();
            $spreadsheet = $reader->getActiveSheet();
            $headers = array_keys($data[0]);
            $data_new = array_unshift($data, $headers);
            $spreadsheet->fromArray(
                $data
            );
            // The code is enclosed in a function for eventual support of multiple file types as xls and ods, as of now a csv will be generated
            $csv_file = $this->create_calc_document($reader, $file_name);
            // $ods_file = $this->third_party_integrations_allow ? $this->create_calc_document($reader, $file_name) : null;
            return $csv_file;
        } catch (Error $e) {
            Log::error('E-CSV-GEN - ' . $e->getMessage());
            throw new RuntimeException("E-CSV-GEN");
        }
    }
}