<commit_before><?php

namespace Firefly\Helper\Controllers;

use Carbon\Carbon;
use Firefly\Exception\FireflyException;
use Illuminate\Support\Collection;

/**
 * Class Chart
 *
 * @package Firefly\Helper\Controllers
 */
class Chart implements ChartInterface
{

    /**
     * @param \Account $account
     * @param Carbon   $start
     * @param Carbon   $end
     *
     * @return array
     */
    public function account(\Account $account, Carbon $start, Carbon $end)
    {
        $current = clone $start;
        $today   = new Carbon;
        $return  = ['name' => $account->name, 'id' => $account->id, 'data' => []];

        while ($current <= $end) {
            if ($current > $today) {
                $return['data'][] = [$current->timestamp * 1000, $account->predict(clone $current)];
            } else {
                $return['data'][] = [$current->timestamp * 1000, $account->balance(clone $current)];
            }

            $current->addDay();
        }

        return $return;
    }

    /**
     * @param \Account $account
     * @param Carbon   $date
     *
     * @return array
     */
    public function accountDailySummary(\Account $account, Carbon $date)
    {
        $result = [
            'rows' => [],
            'sum'  => 0
        ];
        if ($account) {
            // get journals in range:
            $journals = \Auth::user()->transactionjournals()->with(
                [
                    'transactions',
                    'transactions.account',
                    'transactioncurrency',
                    'transactiontype'
                ]
            )
                ->distinct()
                ->leftJoin('transactions', 'transactions.transaction_journal_id', '=', 'transaction_journals.id')
                ->leftJoin('accounts', 'accounts.id', '=', 'transactions.account_id')
                ->where('transactions.account_id', $account->id)
                ->where('transaction_journals.date', $date->format('Y-m-d'))
                ->orderBy('transaction_journals.date', 'DESC')
                ->orderBy('transaction_journals.id', 'DESC')
                ->get(['transaction_journals.*']);

            // loop all journals:
            foreach ($journals as $journal) {
                foreach ($journal->transactions as $transaction) {
                    $name = $transaction->account->name;
                    if ($transaction->account->id != $account->id) {
                        if (!isset($result['rows'][$name])) {
                            $result['rows'][$name] = [
                                'name'   => $name,
                                'id'     => $transaction->account->id,
                                'amount' => floatval($transaction->amount)
                            ];
                        } else {
                            $result['rows'][$name]['amount'] += floatval($transaction->amount);
                        }
                        $result['sum'] += floatval($transaction->amount);
                    }
                }
            }
        }

        return $result;

    }

    /**
     * @param Carbon $start
     *
     * @return array
     */
    public function budgets(Carbon $start)
    {
        // grab all budgets in the time period, like the index does:
        // get the budgets for this period:

        $data = [];

        $budgets       = \Auth::user()->budgets()->with(
            ['limits'                        => function ($q) {
                    $q->orderBy('limits.startdate', 'ASC');
                }, 'limits.limitrepetitions' => function ($q) use ($start) {
                    $q->orderBy('limit_repetitions.startdate', 'ASC');
                    $q->where('startdate', $start->format('Y-m-d'));
                }]
        )->orderBy('name', 'ASC')->get();
        $limitInPeriod = '';
        $spentInPeriod = '';

        /** @var \Budget $budget */
        foreach ($budgets as $budget) {
            $budget->count = 0;
            foreach ($budget->limits as $limit) {
                /** @var $rep \LimitRepetition */
                foreach ($limit->limitrepetitions as $index => $rep) {
                    if ($index == 0) {
                        $limitInPeriod = 'Envelope for ' . $rep->periodShow();
                        $spentInPeriod = 'Spent in ' . $rep->periodShow();
                    }
                    $rep->left = $rep->left();
                    // overspent:
                    if ($rep->left < 0) {
                        $rep->spent         = ($rep->left * -1) + $rep->amount;
                        $rep->overspent     = $rep->left * -1;
                        $total              = $rep->spent + $rep->overspent;
                        $rep->spent_pct     = round(($rep->spent / $total) * 100);
                        $rep->overspent_pct = 100 - $rep->spent_pct;
                    } else {
                        $rep->spent     = $rep->amount - $rep->left;
                        $rep->spent_pct = round(($rep->spent / $rep->amount) * 100);
                        $rep->left_pct  = 100 - $rep->spent_pct;


                    }
                }
                $budget->count += count($limit->limitrepetitions);
            }
            if ($budget->count == 0) {
                // get expenses in period until today, starting at $start.
                $end                   = \Session::get('end');
                $expenses              = $budget->transactionjournals()->after($start)->before($end)
                    ->transactionTypes(
                        ['Withdrawal']
                    )->get();
                $budget->spentInPeriod = 0;
                /** @var \TransactionJournal $expense */
                foreach ($expenses as $expense) {
                    $transaction = $expense->transactions[1];
                    if (!is_null($transaction)) {
                        $budget->spentInPeriod += floatval($transaction->amount);
                    }
                }

            }
        }


        $data['series'] = [
            [
                'name' => $limitInPeriod,
                'data' => []
            ],
            [
                'name' => $spentInPeriod,
                'data' => []
            ],
        ];


        foreach ($budgets as $budget) {
            if ($budget->count > 0) {
                $data['labels'][] = wordwrap($budget->name, 12, "<br>");
                foreach ($budget->limits as $limit) {
                    foreach ($limit->limitrepetitions as $rep) {
                        //0: envelope for period:
                        $amount                      = floatval($rep->amount);
                        $spent                       = $rep->spent;
                        $color                       = $spent > $amount ? '#FF0000' : null;
                        $data['series'][0]['data'][] = ['y' => $amount, 'id' => 'amount-' . $rep->id];
                        $data['series'][1]['data'][] = ['y'  => $rep->spent, 'color' => $color,
                                                        'id' => 'spent-' . $rep->id];
                    }
                }
            } else {
                // add for "empty" budget:
                if ($budget->spentInPeriod > 0) {
                    $data['labels'][]            = wordwrap($budget->name, 12, "<br>");
                    $data['series'][0]['data'][] = ['y' => null, 'id' => 'amount-norep-' . $budget->id];
                    $data['series'][1]['data'][] = ['y'  => $budget->spentInPeriod,
                                                    'id' => 'spent-norep-' . $budget->id];
                }
            }


        }

        return $data;
    }

    /**
     * @param Carbon $start
     * @param Carbon $end
     *
     * @return array
     * @throws \Firefly\Exception\FireflyException
     */
    public function categories(Carbon $start, Carbon $end)
    {

        $result = [];
        // grab all transaction journals in this period:
        $journals = \TransactionJournal::
            with(
                ['components', 'transactions' => function ($q) {
                        $q->where('amount', '>', 0);
                    }]
            )
            ->leftJoin('transaction_types', 'transaction_types.id', '=', 'transaction_journals.transaction_type_id')
            ->where('transaction_types.type', 'Withdrawal')
            ->after($start)->before($end)
            ->where('completed', 1)
            ->get(['transaction_journals.*']);
        foreach ($journals as $journal) {
            // has to be one:

            if (!isset($journal->transactions[0])) {
                throw new FireflyException('Journal #' . $journal->id . ' has ' . count($journal->transactions)
                    . ' transactions!');
            }
            $transaction = $journal->transactions[0];
            $amount      = floatval($transaction->amount);

            // get budget from journal:
            $category     = $journal->categories()->first();
            $categoryName = is_null($category) ? '(no category)' : $category->name;

            $result[$categoryName] = isset($result[$categoryName]) ? $result[$categoryName] + floatval($amount)
                : $amount;

        }
        unset($journal, $transaction, $category, $amount);

        // sort
        arsort($result);
        $chartData = [];
        foreach ($result as $name => $value) {
            $chartData[] = [$name, $value];
        }


        return $chartData;
    }

    /**
     * @param \Category $category
     * @param           $range
     * @param Carbon    $start
     * @param Carbon    $end
     *
     * @return array
     * @throws \Firefly\Exception\FireflyException
     */
    public function categoryShowChart(\Category $category, $range, Carbon $start, Carbon $end)
    {
        $data = ['name' => $category->name . ' per ' . $range, 'data' => []];
        // go back twelve periods. Skip if empty.
        $beginning = clone $start;
        switch ($range) {
            default:
                throw new FireflyException('No beginning for range ' . $range);
                break;
            case '1D':
                $beginning->subDays(12);
                break;
            case '1W':
                $beginning->subWeeks(12);
                break;
            case '1M':
                $beginning->subYear();
                break;
            case '3M':
                $beginning->subYears(3);
                break;
            case '6M':
                $beginning->subYears(6);
                break;
            case 'custom':
                $diff = $start->diff($end);
                $days = $diff->days;
                $beginning->subDays(12 * $days);
                break;
        }

        // loop over the periods:
        while ($beginning <= $start) {
            // increment currentEnd to fit beginning:
            $currentEnd = clone $beginning;
            // increase beginning for next round:
            switch ($range) {
                default:
                    throw new FireflyException('No currentEnd incremental for range ' . $range);
                    break;
                case '1D':
                    break;
                case '1W':
                    $currentEnd->addWeek()->subDay();
                    break;
                case '1M':
                    $currentEnd->addMonth()->subDay();
                    break;
                case '3M':
                    $currentEnd->addMonths(3)->subDay();
                    break;
                case '6M':
                    $currentEnd->addMonths(6)->subDay();
                    break;
                case 'custom':
                    $diff = $start->diff($end);
                    $days = $diff->days;
                    $days = $days == 1 ? 2 : $days;
                    $currentEnd->addDays($days)->subDay();
                    break;
            }


            // now format the current range:
            $title = '';
            switch ($range) {
                default:
                    throw new FireflyException('No date formats for frequency "' . $range . '"!');
                    break;
                case '1D':
                    $title = $beginning->format('j F Y');
                    break;
                case '1W':
                    $title = $beginning->format('\W\e\e\k W, Y');
                    break;
                case '1M':
                    $title = $beginning->format('F Y');
                    break;
                case '3M':
                case '6M':
                    $title = $beginning->format('M Y') . ' - ' . $currentEnd->format('M Y');
                    break;
                case 'custom':
                    $title = $beginning->format('d-m-Y') . ' - ' . $currentEnd->format('d-m-Y');
                    break;
                case 'yearly':
//                    return $this->startdate->format('Y');
                    break;
            }


            // get sum for current range:
            $journals   = \TransactionJournal::
                with(
                    ['transactions' => function ($q) {
                            $q->where('amount', '>', 0);
                        }]
                )
                ->leftJoin('transaction_types', 'transaction_types.id', '=', 'transaction_journals.transaction_type_id')
                ->where('transaction_types.type', 'Withdrawal')
                ->leftJoin(
                    'component_transaction_journal', 'component_transaction_journal.transaction_journal_id', '=',
                    'transaction_journals.id'
                )
                ->leftJoin('components', 'components.id', '=', 'component_transaction_journal.component_id')
                ->where('components.id', '=', $category->id)
                //->leftJoin()
                ->after($beginning)->before($currentEnd)
                ->where('completed', 1)
                ->get(['transaction_journals.*']);
            $currentSum = 0;
            foreach ($journals as $journal) {
                if (!isset($journal->transactions[0])) {
                    throw new FireflyException('Journal #' . $journal->id . ' has ' . count($journal->transactions)
                        . ' transactions!');
                }
                $transaction = $journal->transactions[0];
                $amount      = floatval($transaction->amount);
                $currentSum += $amount;

            }
            $data['data'][] = [$title, $currentSum];

            // increase beginning for next round:
            switch ($range) {
                default:
                    throw new FireflyException('No incremental for range ' . $range);
                    break;
                case '1D':
                    $beginning->addDay();
                    break;
                case '1W':
                    $beginning->addWeek();
                    break;
                case '1M':
                    $beginning->addMonth();
                    break;
                case '3M':
                    $beginning->addMonths(3);
                    break;
                case '6M':
                    $beginning->addMonths(6);
                    break;
                case 'custom':
                    $diff = $start->diff($end);
                    $days = $diff->days;

                    $beginning->addDays($days);
                    break;

            }
        }

        return $data;


    }

    /**
     * @param \Budget $budget
     * @param Carbon  $date
     *
     * @return float|null
     */
    public function spentOnDay(\Budget $budget, Carbon $date)
    {
        return floatval(
            \Transaction::
                leftJoin('transaction_journals', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
                ->leftJoin(
                    'component_transaction_journal', 'component_transaction_journal.transaction_journal_id', '=',
                    'transaction_journals.id'
                )->where('component_transaction_journal.component_id', '=', $budget->id)->where(
                    'transaction_journals.date', $date->format('Y-m-d')
                )->where('amount', '>', 0)->sum('amount')
        );
    }

    /**
     * @param \Budget $budget
     *
     * @return int[]
     */
    public function allJournalsInBudgetEnvelope(\Budget $budget)
    {
        $inRepetitions = [];

        foreach ($budget->limits as $limit) {
            foreach ($limit->limitrepetitions as $repetition) {
                $set = $budget
                    ->transactionjournals()
                    ->transactionTypes(['Withdrawal'])
                    ->after($repetition->startdate)
                    ->before($repetition->enddate)
                    ->get(['transaction_journals.id']);

                foreach ($set as $item) {
                    $inRepetitions[] = $item->id;
                }
            }
        }
        return $inRepetitions;
    }

    /**
     * @param \Budget $budget
     * @param array   $ids
     *
     * @return mixed|void
     */
    public function journalsNotInSet(\Budget $budget, array $ids)
    {
        $query = $budget->transactionjournals()
            ->whereNotIn('transaction_journals.id', $ids)
            ->orderBy('date', 'DESC')
            ->orderBy('transaction_journals.id', 'DESC');

        $result = $query->get(['transaction_journals.id']);
        $set    = [];
        foreach ($result as $entry) {
            $set[] = $entry->id;
        }
        return $set;
    }

    /**
     * @param array $set
     *
     * @return mixed
     */
    public function transactionsByJournals(array $set)
    {
        $transactions = \Transaction::whereIn('transaction_journal_id', $set)
            ->leftJoin('transaction_journals', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
            ->groupBy('transaction_journals.date')
            ->where('amount', '>', 0)->get(['transaction_journals.date', \DB::Raw('SUM(`amount`) as `aggregate`')]);
        return $transactions;
    }

    /**
     * Get all limit (LimitRepetitions) for a budget falling in a certain date range.
     *
     * @param \Budget $budget
     * @param Carbon  $start
     * @param Carbon  $end
     *
     * @return Collection
     */
    public function limitsInRange(\Budget $budget, Carbon $start, Carbon $end)
    {
        $reps = new Collection;
        /** @var \Limit $limit */
        foreach ($budget->limits as $limit) {
            $set = $limit->limitrepetitions()->where(
                function ($q) use ($start, $end) {
                    // startdate is between range
                    $q->where(
                        function ($q) use ($start, $end) {
                            $q->where('startdate', '>=', $start->format('Y-m-d'));
                            $q->where('startdate', '<=', $end->format('Y-m-d'));
                        }
                    );

                    // or enddate is between range.
                    $q->orWhere(
                        function ($q) use ($start, $end) {
                            $q->where('enddate', '>=', $start->format('Y-m-d'));
                            $q->where('enddate', '<=', $end->format('Y-m-d'));
                        }
                    );
                }
            )->get();

            $reps = $reps->merge($set);
        }
        return $reps;
    }

    /**
     * We check how much money has been spend on the limitrepetition (aka: the current envelope) in the period denoted.
     * Aka, we have a certain amount of money in an envelope and we wish to know how much we've spent between the dates
     * entered. This can be a partial match with the date range of the envelope or no match at all.
     *
     * @param \LimitRepetition $repetition
     * @param Carbon           $start
     * @param Carbon           $end
     *
     * @return mixed
     */
    public function spentOnLimitRepetitionBetweenDates(\LimitRepetition $repetition, Carbon $start, Carbon $end) {
        return floatval(
            \Transaction::
            leftJoin('transaction_journals', 'transaction_journals.id', '=','transactions.transaction_journal_id')
            ->leftJoin('component_transaction_journal', 'component_transaction_journal.transaction_journal_id','=',
                'transaction_journals.id'
            )->where('component_transaction_journal.component_id', '=', $repetition->limit->budget->id)->where(
                'transaction_journals.date', '>=', $start->format('Y-m-d')
            )->where('transaction_journals.date', '<=', $end->format('Y-m-d'))->where(
                'amount', '>', 0
            )->sum('amount')) ;
    }



}<commit_msg>Removed a chart wrap.<commit_after><?php

namespace Firefly\Helper\Controllers;

use Carbon\Carbon;
use Firefly\Exception\FireflyException;
use Illuminate\Support\Collection;

/**
 * Class Chart
 *
 * @package Firefly\Helper\Controllers
 */
class Chart implements ChartInterface
{

    /**
     * @param \Account $account
     * @param Carbon   $start
     * @param Carbon   $end
     *
     * @return array
     */
    public function account(\Account $account, Carbon $start, Carbon $end)
    {
        $current = clone $start;
        $today   = new Carbon;
        $return  = ['name' => $account->name, 'id' => $account->id, 'data' => []];

        while ($current <= $end) {
            if ($current > $today) {
                $return['data'][] = [$current->timestamp * 1000, $account->predict(clone $current)];
            } else {
                $return['data'][] = [$current->timestamp * 1000, $account->balance(clone $current)];
            }

            $current->addDay();
        }

        return $return;
    }

    /**
     * @param \Account $account
     * @param Carbon   $date
     *
     * @return array
     */
    public function accountDailySummary(\Account $account, Carbon $date)
    {
        $result = [
            'rows' => [],
            'sum'  => 0
        ];
        if ($account) {
            // get journals in range:
            $journals = \Auth::user()->transactionjournals()->with(
                [
                    'transactions',
                    'transactions.account',
                    'transactioncurrency',
                    'transactiontype'
                ]
            )
                ->distinct()
                ->leftJoin('transactions', 'transactions.transaction_journal_id', '=', 'transaction_journals.id')
                ->leftJoin('accounts', 'accounts.id', '=', 'transactions.account_id')
                ->where('transactions.account_id', $account->id)
                ->where('transaction_journals.date', $date->format('Y-m-d'))
                ->orderBy('transaction_journals.date', 'DESC')
                ->orderBy('transaction_journals.id', 'DESC')
                ->get(['transaction_journals.*']);

            // loop all journals:
            foreach ($journals as $journal) {
                foreach ($journal->transactions as $transaction) {
                    $name = $transaction->account->name;
                    if ($transaction->account->id != $account->id) {
                        if (!isset($result['rows'][$name])) {
                            $result['rows'][$name] = [
                                'name'   => $name,
                                'id'     => $transaction->account->id,
                                'amount' => floatval($transaction->amount)
                            ];
                        } else {
                            $result['rows'][$name]['amount'] += floatval($transaction->amount);
                        }
                        $result['sum'] += floatval($transaction->amount);
                    }
                }
            }
        }

        return $result;

    }

    /**
     * @param Carbon $start
     *
     * @return array
     */
    public function budgets(Carbon $start)
    {
        // grab all budgets in the time period, like the index does:
        // get the budgets for this period:

        $data = [];

        $budgets       = \Auth::user()->budgets()->with(
            ['limits'                        => function ($q) {
                    $q->orderBy('limits.startdate', 'ASC');
                }, 'limits.limitrepetitions' => function ($q) use ($start) {
                    $q->orderBy('limit_repetitions.startdate', 'ASC');
                    $q->where('startdate', $start->format('Y-m-d'));
                }]
        )->orderBy('name', 'ASC')->get();
        $limitInPeriod = '';
        $spentInPeriod = '';

        /** @var \Budget $budget */
        foreach ($budgets as $budget) {
            $budget->count = 0;
            foreach ($budget->limits as $limit) {
                /** @var $rep \LimitRepetition */
                foreach ($limit->limitrepetitions as $index => $rep) {
                    if ($index == 0) {
                        $limitInPeriod = 'Envelope for ' . $rep->periodShow();
                        $spentInPeriod = 'Spent in ' . $rep->periodShow();
                    }
                    $rep->left = $rep->left();
                    // overspent:
                    if ($rep->left < 0) {
                        $rep->spent         = ($rep->left * -1) + $rep->amount;
                        $rep->overspent     = $rep->left * -1;
                        $total              = $rep->spent + $rep->overspent;
                        $rep->spent_pct     = round(($rep->spent / $total) * 100);
                        $rep->overspent_pct = 100 - $rep->spent_pct;
                    } else {
                        $rep->spent     = $rep->amount - $rep->left;
                        $rep->spent_pct = round(($rep->spent / $rep->amount) * 100);
                        $rep->left_pct  = 100 - $rep->spent_pct;


                    }
                }
                $budget->count += count($limit->limitrepetitions);
            }
            if ($budget->count == 0) {
                // get expenses in period until today, starting at $start.
                $end                   = \Session::get('end');
                $expenses              = $budget->transactionjournals()->after($start)->before($end)
                    ->transactionTypes(
                        ['Withdrawal']
                    )->get();
                $budget->spentInPeriod = 0;
                /** @var \TransactionJournal $expense */
                foreach ($expenses as $expense) {
                    $transaction = $expense->transactions[1];
                    if (!is_null($transaction)) {
                        $budget->spentInPeriod += floatval($transaction->amount);
                    }
                }

            }
        }


        $data['series'] = [
            [
                'name' => $limitInPeriod,
                'data' => []
            ],
            [
                'name' => $spentInPeriod,
                'data' => []
            ],
        ];


        foreach ($budgets as $budget) {
            if ($budget->count > 0) {
                $data['labels'][] = $budget->name;
                foreach ($budget->limits as $limit) {
                    foreach ($limit->limitrepetitions as $rep) {
                        //0: envelope for period:
                        $amount                      = floatval($rep->amount);
                        $spent                       = $rep->spent;
                        $color                       = $spent > $amount ? '#FF0000' : null;
                        $data['series'][0]['data'][] = ['y' => $amount, 'id' => 'amount-' . $rep->id];
                        $data['series'][1]['data'][] = ['y'  => $rep->spent, 'color' => $color,
                                                        'id' => 'spent-' . $rep->id];
                    }
                }
            } else {
                // add for "empty" budget:
                if ($budget->spentInPeriod > 0) {
                    $data['labels'][]            = wordwrap($budget->name, 12, "<br>");
                    $data['series'][0]['data'][] = ['y' => null, 'id' => 'amount-norep-' . $budget->id];
                    $data['series'][1]['data'][] = ['y'  => $budget->spentInPeriod,
                                                    'id' => 'spent-norep-' . $budget->id];
                }
            }


        }

        return $data;
    }

    /**
     * @param Carbon $start
     * @param Carbon $end
     *
     * @return array
     * @throws \Firefly\Exception\FireflyException
     */
    public function categories(Carbon $start, Carbon $end)
    {

        $result = [];
        // grab all transaction journals in this period:
        $journals = \TransactionJournal::
            with(
                ['components', 'transactions' => function ($q) {
                        $q->where('amount', '>', 0);
                    }]
            )
            ->leftJoin('transaction_types', 'transaction_types.id', '=', 'transaction_journals.transaction_type_id')
            ->where('transaction_types.type', 'Withdrawal')
            ->after($start)->before($end)
            ->where('completed', 1)
            ->get(['transaction_journals.*']);
        foreach ($journals as $journal) {
            // has to be one:

            if (!isset($journal->transactions[0])) {
                throw new FireflyException('Journal #' . $journal->id . ' has ' . count($journal->transactions)
                    . ' transactions!');
            }
            $transaction = $journal->transactions[0];
            $amount      = floatval($transaction->amount);

            // get budget from journal:
            $category     = $journal->categories()->first();
            $categoryName = is_null($category) ? '(no category)' : $category->name;

            $result[$categoryName] = isset($result[$categoryName]) ? $result[$categoryName] + floatval($amount)
                : $amount;

        }
        unset($journal, $transaction, $category, $amount);

        // sort
        arsort($result);
        $chartData = [];
        foreach ($result as $name => $value) {
            $chartData[] = [$name, $value];
        }


        return $chartData;
    }

    /**
     * @param \Category $category
     * @param           $range
     * @param Carbon    $start
     * @param Carbon    $end
     *
     * @return array
     * @throws \Firefly\Exception\FireflyException
     */
    public function categoryShowChart(\Category $category, $range, Carbon $start, Carbon $end)
    {
        $data = ['name' => $category->name . ' per ' . $range, 'data' => []];
        // go back twelve periods. Skip if empty.
        $beginning = clone $start;
        switch ($range) {
            default:
                throw new FireflyException('No beginning for range ' . $range);
                break;
            case '1D':
                $beginning->subDays(12);
                break;
            case '1W':
                $beginning->subWeeks(12);
                break;
            case '1M':
                $beginning->subYear();
                break;
            case '3M':
                $beginning->subYears(3);
                break;
            case '6M':
                $beginning->subYears(6);
                break;
            case 'custom':
                $diff = $start->diff($end);
                $days = $diff->days;
                $beginning->subDays(12 * $days);
                break;
        }

        // loop over the periods:
        while ($beginning <= $start) {
            // increment currentEnd to fit beginning:
            $currentEnd = clone $beginning;
            // increase beginning for next round:
            switch ($range) {
                default:
                    throw new FireflyException('No currentEnd incremental for range ' . $range);
                    break;
                case '1D':
                    break;
                case '1W':
                    $currentEnd->addWeek()->subDay();
                    break;
                case '1M':
                    $currentEnd->addMonth()->subDay();
                    break;
                case '3M':
                    $currentEnd->addMonths(3)->subDay();
                    break;
                case '6M':
                    $currentEnd->addMonths(6)->subDay();
                    break;
                case 'custom':
                    $diff = $start->diff($end);
                    $days = $diff->days;
                    $days = $days == 1 ? 2 : $days;
                    $currentEnd->addDays($days)->subDay();
                    break;
            }


            // now format the current range:
            $title = '';
            switch ($range) {
                default:
                    throw new FireflyException('No date formats for frequency "' . $range . '"!');
                    break;
                case '1D':
                    $title = $beginning->format('j F Y');
                    break;
                case '1W':
                    $title = $beginning->format('\W\e\e\k W, Y');
                    break;
                case '1M':
                    $title = $beginning->format('F Y');
                    break;
                case '3M':
                case '6M':
                    $title = $beginning->format('M Y') . ' - ' . $currentEnd->format('M Y');
                    break;
                case 'custom':
                    $title = $beginning->format('d-m-Y') . ' - ' . $currentEnd->format('d-m-Y');
                    break;
                case 'yearly':
//                    return $this->startdate->format('Y');
                    break;
            }


            // get sum for current range:
            $journals   = \TransactionJournal::
                with(
                    ['transactions' => function ($q) {
                            $q->where('amount', '>', 0);
                        }]
                )
                ->leftJoin('transaction_types', 'transaction_types.id', '=', 'transaction_journals.transaction_type_id')
                ->where('transaction_types.type', 'Withdrawal')
                ->leftJoin(
                    'component_transaction_journal', 'component_transaction_journal.transaction_journal_id', '=',
                    'transaction_journals.id'
                )
                ->leftJoin('components', 'components.id', '=', 'component_transaction_journal.component_id')
                ->where('components.id', '=', $category->id)
                //->leftJoin()
                ->after($beginning)->before($currentEnd)
                ->where('completed', 1)
                ->get(['transaction_journals.*']);
            $currentSum = 0;
            foreach ($journals as $journal) {
                if (!isset($journal->transactions[0])) {
                    throw new FireflyException('Journal #' . $journal->id . ' has ' . count($journal->transactions)
                        . ' transactions!');
                }
                $transaction = $journal->transactions[0];
                $amount      = floatval($transaction->amount);
                $currentSum += $amount;

            }
            $data['data'][] = [$title, $currentSum];

            // increase beginning for next round:
            switch ($range) {
                default:
                    throw new FireflyException('No incremental for range ' . $range);
                    break;
                case '1D':
                    $beginning->addDay();
                    break;
                case '1W':
                    $beginning->addWeek();
                    break;
                case '1M':
                    $beginning->addMonth();
                    break;
                case '3M':
                    $beginning->addMonths(3);
                    break;
                case '6M':
                    $beginning->addMonths(6);
                    break;
                case 'custom':
                    $diff = $start->diff($end);
                    $days = $diff->days;

                    $beginning->addDays($days);
                    break;

            }
        }

        return $data;


    }

    /**
     * @param \Budget $budget
     * @param Carbon  $date
     *
     * @return float|null
     */
    public function spentOnDay(\Budget $budget, Carbon $date)
    {
        return floatval(
            \Transaction::
                leftJoin('transaction_journals', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
                ->leftJoin(
                    'component_transaction_journal', 'component_transaction_journal.transaction_journal_id', '=',
                    'transaction_journals.id'
                )->where('component_transaction_journal.component_id', '=', $budget->id)->where(
                    'transaction_journals.date', $date->format('Y-m-d')
                )->where('amount', '>', 0)->sum('amount')
        );
    }

    /**
     * @param \Budget $budget
     *
     * @return int[]
     */
    public function allJournalsInBudgetEnvelope(\Budget $budget)
    {
        $inRepetitions = [];

        foreach ($budget->limits as $limit) {
            foreach ($limit->limitrepetitions as $repetition) {
                $set = $budget
                    ->transactionjournals()
                    ->transactionTypes(['Withdrawal'])
                    ->after($repetition->startdate)
                    ->before($repetition->enddate)
                    ->get(['transaction_journals.id']);

                foreach ($set as $item) {
                    $inRepetitions[] = $item->id;
                }
            }
        }
        return $inRepetitions;
    }

    /**
     * @param \Budget $budget
     * @param array   $ids
     *
     * @return mixed|void
     */
    public function journalsNotInSet(\Budget $budget, array $ids)
    {
        $query = $budget->transactionjournals()
            ->whereNotIn('transaction_journals.id', $ids)
            ->orderBy('date', 'DESC')
            ->orderBy('transaction_journals.id', 'DESC');

        $result = $query->get(['transaction_journals.id']);
        $set    = [];
        foreach ($result as $entry) {
            $set[] = $entry->id;
        }
        return $set;
    }

    /**
     * @param array $set
     *
     * @return mixed
     */
    public function transactionsByJournals(array $set)
    {
        $transactions = \Transaction::whereIn('transaction_journal_id', $set)
            ->leftJoin('transaction_journals', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
            ->groupBy('transaction_journals.date')
            ->where('amount', '>', 0)->get(['transaction_journals.date', \DB::Raw('SUM(`amount`) as `aggregate`')]);
        return $transactions;
    }

    /**
     * Get all limit (LimitRepetitions) for a budget falling in a certain date range.
     *
     * @param \Budget $budget
     * @param Carbon  $start
     * @param Carbon  $end
     *
     * @return Collection
     */
    public function limitsInRange(\Budget $budget, Carbon $start, Carbon $end)
    {
        $reps = new Collection;
        /** @var \Limit $limit */
        foreach ($budget->limits as $limit) {
            $set = $limit->limitrepetitions()->where(
                function ($q) use ($start, $end) {
                    // startdate is between range
                    $q->where(
                        function ($q) use ($start, $end) {
                            $q->where('startdate', '>=', $start->format('Y-m-d'));
                            $q->where('startdate', '<=', $end->format('Y-m-d'));
                        }
                    );

                    // or enddate is between range.
                    $q->orWhere(
                        function ($q) use ($start, $end) {
                            $q->where('enddate', '>=', $start->format('Y-m-d'));
                            $q->where('enddate', '<=', $end->format('Y-m-d'));
                        }
                    );
                }
            )->get();

            $reps = $reps->merge($set);
        }
        return $reps;
    }

    /**
     * We check how much money has been spend on the limitrepetition (aka: the current envelope) in the period denoted.
     * Aka, we have a certain amount of money in an envelope and we wish to know how much we've spent between the dates
     * entered. This can be a partial match with the date range of the envelope or no match at all.
     *
     * @param \LimitRepetition $repetition
     * @param Carbon           $start
     * @param Carbon           $end
     *
     * @return mixed
     */
    public function spentOnLimitRepetitionBetweenDates(\LimitRepetition $repetition, Carbon $start, Carbon $end) {
        return floatval(
            \Transaction::
            leftJoin('transaction_journals', 'transaction_journals.id', '=','transactions.transaction_journal_id')
            ->leftJoin('component_transaction_journal', 'component_transaction_journal.transaction_journal_id','=',
                'transaction_journals.id'
            )->where('component_transaction_journal.component_id', '=', $repetition->limit->budget->id)->where(
                'transaction_journals.date', '>=', $start->format('Y-m-d')
            )->where('transaction_journals.date', '<=', $end->format('Y-m-d'))->where(
                'amount', '>', 0
            )->sum('amount')) ;
    }



}
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