<?php

namespace App\Http\Controllers\CsvController\CsvCostCalc;

class CsvSumTotalsCalc
{

    private $calculate_agent_cost;

    public function __construct($calculate_agent_cost = false)
    {
        $this->calculate_agent_cost = $calculate_agent_cost || config('app.gitea_calculate_agent_cost');
    }

    private function sum_total_cost(array $array)
    {
        (float)$total = 0;

        foreach ($array as $issue_total) {
            $issue_total_cost = $issue_total['Costo totale'];
            $total += $issue_total_cost;
        }

        $totalSumCsvLine = array(
            'Progetto' => '',
            '#' => '',
            'Titolo' => '',
            'URL' => '',
            'Aperto_il' => '',
            'Chiuso_il' => '',
            'Etichette' => '',
            'Kind' => '',
            'Request By' => '',
            'Priority' => '',
            'Tempo totale' => '',
            'Costo totale' => $total,
        );

        array_push($array, $totalSumCsvLine);
        return $array;
    }

    private function add_agents_csv_line($agent_struct, $last_csv_line)
    {
        $agents_csv_line = $last_csv_line;
        foreach ($agent_struct as $agent_name => $agent_sum) {
            $agents_csv_line[$agent_name] = '';
            $agents_csv_line[$agent_name . ' costo'] = $agent_sum;
        }
        return $agents_csv_line;
    }

    private function init_agents_struct($company_agents){
        return array_combine($company_agents, array_fill(0, count($company_agents), 0));
    }

    private function extract_agent_cost(array $array,array $agent_struct){
        $i=0;
        $issue_length = count( $array );
        foreach ($array as $issue) {
            if(++$i == $issue_length) break;
            foreach ($agent_struct as $agent_name => $agent_sum) {
                $agent_cost = $issue[$agent_name . ' costo'];
                $agent_struct[$agent_name] += $agent_cost;
            }
        }
        return $agent_struct;
    }
    private function sum_agents_cost($array, $company_agents)
    {
        $agent_struct = $this->init_agents_struct($company_agents);
        $agent_struct = $this->extract_agent_cost($array, $agent_struct);
        $agents_csv_line = $this->add_agents_csv_line($agent_struct, end($array));
        $array[key($array)] = $agents_csv_line;
        return $array;
    }

    function sum_costs(array $array, $company_agents = [])
    {
        $array = $this->sum_total_cost($array);

        if ($this->calculate_agent_cost) {
            $array = $this->sum_agents_cost($array, $company_agents);
        }

        return $array;
    }
}