akaunting/app/Http/Controllers/Dashboard/Dashboard.php

<?php

namespace App\Http\Controllers\Dashboard;

use App\Http\Controllers\Controller;
use App\Models\Banking\Account;
use App\Models\Expense\Bill;
use App\Models\Expense\BillPayment;
use App\Models\Expense\Payment;
use App\Models\Income\Invoice;
use App\Models\Income\InvoicePayment;
use App\Models\Income\Revenue;
use App\Models\Setting\Category;
use App\Traits\Currencies;
use Charts;
use Date;

class Dashboard extends Controller
{
    use Currencies;

    public $today;

    public $income_donut = ['colors', 'labels', 'values'];

    public $expense_donut = ['colors', 'labels', 'values'];

    /**
     * Display a listing of the resource.
     *
     * @return Response
     */
    public function index()
    {
        $this->today = Date::today();

        list($total_incomes, $total_expenses, $total_profit) = $this->getTotals();

        $cashflow = $this->getCashFlow();

        list($donut_incomes, $donut_expenses) = $this->getDonuts();

        $accounts = Account::enabled()->get();

        $latest_incomes = $this->getLatestIncomes();

        $latest_expenses = $this->getLatestExpenses();

        return view('dashboard.dashboard.index', compact(
            'total_incomes',
            'total_expenses',
            'total_profit',
            'cashflow',
            'donut_incomes',
            'donut_expenses',
            'accounts',
            'latest_incomes',
            'latest_expenses'
        ));
    }

    public function cashFlow()
    {
        $this->today = Date::today();

        $content = $this->getCashFlow()->render();

        //return response()->setContent($content)->send();

        echo $content;
    }

    private function getTotals()
    {
        list($incomes_amount, $open_invoice, $overdue_invoice, $expenses_amount, $open_bill, $overdue_bill) = $this->calculateAmounts();

        $incomes_progress = 100;

        if (!empty($open_invoice) && !empty($overdue_invoice)) {
            $incomes_progress = (int) 100 - (100 * ($open_invoice / $overdue_invoice));
        }

        // Totals
        $total_incomes = array(
            'total'             => $incomes_amount,
            'open_invoice'      => money($open_invoice, setting('general.default_currency'), true),
            'overdue_invoice'   => money($overdue_invoice, setting('general.default_currency'), true),
            'progress'          => $incomes_progress
        );

        $expenses_progress = 100;

        if (!empty($open_bill) && !empty($overdue_bill)) {
            $expenses_progress = (int) 100 - (100 * ($open_bill / $overdue_bill));
        }

        $total_expenses = array(
            'total'         => $expenses_amount,
            'open_bill'     => money($open_bill, setting('general.default_currency'), true),
            'overdue_bill'  => money($overdue_bill, setting('general.default_currency'), true),
            'progress'      => $expenses_progress
        );

        $amount_profit = $incomes_amount - $expenses_amount;
        $open_profit = $open_invoice - $open_bill;
        $overdue_profit = $overdue_invoice - $overdue_bill;

        $total_progress = 100;

        if (!empty($open_profit) && !empty($overdue_profit)) {
            $total_progress = (int) 100 - (100 * ($open_profit / $overdue_profit));
        }

        $total_profit = array(
            'total'         => $amount_profit,
            'open'          => money($open_profit, setting('general.default_currency'), true),
            'overdue'       => money($overdue_profit, setting('general.default_currency'), true),
            'progress'      => $total_progress
        );

        return array($total_incomes, $total_expenses, $total_profit);
    }

    private function getCashFlow()
    {
        $start = Date::parse(request('start', $this->today->startOfYear()->format('Y-m-d')));
        $end = Date::parse(request('end', $this->today->endOfYear()->format('Y-m-d')));
        $period = request('period', 'month');

        $start_month = $start->month;
        $end_month = $end->month;

        // Monthly
        $labels = array();

        $s = clone $start;

        for ($j = $end_month; $j >= $start_month; $j--) {
            $labels[$end_month - $j] = $s->format('M Y');

            if ($period == 'month') {
                $s->addMonth();
            } else {
                $s->addMonths(3);
                $j -= 2;
            }
        }

        $income = $this->calculateCashFlowTotals('income', $start, $end, $period);
        $expense = $this->calculateCashFlowTotals('expense', $start, $end, $period);

        $profit = $this->calculateCashFlowProfit($income, $expense);

        $chart = Charts::multi('line', 'chartjs')
            ->dimensions(0, 300)
            ->colors(['#6da252', '#00c0ef', '#F56954'])
            ->dataset(trans_choice('general.profits', 1), $profit)
            ->dataset(trans_choice('general.incomes', 1), $income)
            ->dataset(trans_choice('general.expenses', 1), $expense)
            ->labels($labels)
            ->credits(false)
            ->view('vendor.consoletvs.charts.chartjs.multi.line');

        return $chart;
    }

    private function getDonuts()
    {
        $donut_incomes = Charts::create('donut', 'chartjs')
            ->colors($this->income_donut['colors'])
            ->labels($this->income_donut['labels'])
            ->values($this->income_donut['values'])
            ->dimensions(0, 160)
            ->credits(false)
            ->view('vendor.consoletvs.charts.chartjs.donut');

        $donut_expenses = Charts::create('donut', 'chartjs')
            ->colors($this->expense_donut['colors'])
            ->labels($this->expense_donut['labels'])
            ->values($this->expense_donut['values'])
            ->dimensions(0, 160)
            ->credits(false)
            ->view('vendor.consoletvs.charts.chartjs.donut');

        return array($donut_incomes, $donut_expenses);
    }

    private function getLatestIncomes()
    {
        $latest = collect(Invoice::accrued()->latest()->take(10)->get());
        $latest = $latest->merge(Revenue::latest()->take(10)->get())->take(5)->sortByDesc('invoiced_at');

        return $latest;
    }

    private function getLatestExpenses()
    {
        $latest = collect(Bill::accrued()->latest()->take(10)->get());
        $latest = $latest->merge(Payment::latest()->take(10)->get())->take(5)->sortByDesc('billed_at');

        return $latest;
    }

    private function calculateAmounts()
    {
        $incomes_amount = $expenses_amount = 0;

        // Invoices
        $invoices = Invoice::with('payments')->accrued()->get();
        list($invoice_paid_amount, $open_invoice, $overdue_invoice) = $this->calculateTotals($invoices, 'invoice');

        $incomes_amount += $invoice_paid_amount;

        // Add to Incomes By Category
        $this->addToIncomeDonut('#00c0ef', $invoice_paid_amount, trans_choice('general.invoices', 2));

        // Bills
        $bills = Bill::with('payments')->accrued()->get();
        list($bill_paid_amount, $open_bill, $overdue_bill) = $this->calculateTotals($bills, 'bill');

        $expenses_amount += $bill_paid_amount;

        // Add to Expenses By Category
        $this->addToExpenseDonut('#dd4b39', $bill_paid_amount, trans_choice('general.bills', 2));

        // Revenues & Payments
        $categories = Category::orWhere('type', 'income')->orWhere('type', 'expense')->enabled()->get();

        foreach ($categories as $category) {
            switch ($category->type) {
                case 'income':
                    $amount = 0;

                    foreach ($category->revenues as $revenue) {
                        $amount += $revenue->getConvertedAmount();
                    }

                    $this->addToIncomeDonut($category->color, $amount, $category->name);

                    $incomes_amount += $amount;
                    break;
                case 'expense':
                    $amount = 0;

                    foreach ($category->payments as $payment) {
                        $amount += $payment->getConvertedAmount();
                    }

                    $this->addToExpenseDonut($category->color, $amount, $category->name);

                    $expenses_amount += $amount;
                    break;
            }
        }

        return array($incomes_amount, $open_invoice, $overdue_invoice, $expenses_amount, $open_bill, $overdue_bill);
    }

    private function calculateCashFlowTotals($type, $start, $end, $period)
    {
        $totals = array();

        if ($type == 'income') {
            $m1 = '\App\Models\Income\Revenue';
            $m2 = '\App\Models\Income\InvoicePayment';
        } else {
            $m1 = '\App\Models\Expense\Payment';
            $m2 = '\App\Models\Expense\BillPayment';
        }

        $date_format = 'Y-m';

        if ($period == 'month') {
            $n = 1;
            $start_date = $start->format($date_format);
            $end_date = $end->format($date_format);
            $next_date = $start_date;
        } else {
            $n = 3;
            $start_date = $start->quarter;
            $end_date = $end->quarter;
            $next_date = $start_date;
        }

        $s = clone $start;

        //$totals[$start_date] = 0;
        while ($next_date <= $end_date) {
            $totals[$next_date] = 0;

            if ($period == 'month') {
                $next_date = $s->addMonths($n)->format($date_format);
            } else {
                if (isset($totals[4])) {
                    break;
                }

                $next_date = $s->addMonths($n)->quarter;
            }
        }

        $items_1 = $m1::whereBetween('paid_at', [$start, $end])->get();

        $this->setCashFlowTotals($totals, $items_1, $date_format, $period);

        $items_2 = $m2::whereBetween('paid_at', [$start, $end])->get();

        $this->setCashFlowTotals($totals, $items_2, $date_format, $period);

        return $totals;
    }

    private function setCashFlowTotals(&$totals, $items, $date_format, $period)
    {
        foreach ($items as $item) {
            if ($period == 'month') {
                $i = Date::parse($item->paid_at)->format($date_format);
            } else {
                $i = Date::parse($item->paid_at)->quarter;
            }

            $totals[$i] += $item->getConvertedAmount();
        }
    }

    private function calculateCashFlowProfit($incomes, $expenses)
    {
        $profit = [];

        foreach ($incomes as $key => $income) {
            if ($income > 0 && $income > $expenses[$key]) {
                $profit[$key] = $income - $expenses[$key];
            } else {
                $profit[$key] = 0;
            }
        }

        return $profit;
    }

    private function calculateTotals($items, $type)
    {
        $paid = $open = $overdue = 0;

        $today = $this->today->toDateString();

        foreach ($items as $item) {
            $paid += $item->getConvertedAmount();

            $code_field = $type . '_status_code';

            if ($item->$code_field == 'paid') {
                continue;
            }

            $payments = 0;
            if ($item->$code_field == 'partial') {
                foreach ($item->payments as $payment) {
                    $payments += $payment->getConvertedAmount();
                }
            }

            // Check if it's open or overdue invoice
            if ($item->due_at > $today) {
                $open += $item->getConvertedAmount() - $payments;
            } else {
                $overdue += $item->getConvertedAmount() - $payments;
            }
        }

        return array($paid, $open, $overdue);
    }

    private function addToIncomeDonut($color, $amount, $text)
    {
        $this->addToDonut('income', $color, $amount, $text);
    }

    private function addToExpenseDonut($color, $amount, $text)
    {
        $this->addToDonut('expense', $color, $amount, $text);
    }

    private function addToDonut($type, $color, $amount, $text)
    {
        $attribute = $type . '_donut';

        $this->$attribute['colors'][] = $color;
        $this->$attribute['labels'][] = money($amount, setting('general.default_currency'), true)->format() . ' - ' . $text;
        $this->$attribute['values'][] = (int) $amount;
    }
}