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✏️ Editing: Statement_model.php

<?php

defined('BASEPATH') or exit('No direct script access allowed');

class Statement_model extends App_Model
{
    public function __construct()
    {
        parent::__construct();
    }

/**
     * Get customer statement formatted
     * @param  mixed $customer_id customer id
     * @param  string $from        date from
     * @param  string $to          date to
     * @return array
     */
    public function get_statement($customer_id, $from, $to)
    {
        if (!class_exists('Invoices_model', false)) {
            $this->load->model('invoices_model');
        }

$sql = 'SELECT
        ' . db_prefix() . 'invoices.id as invoice_id,
        hash,
        ' . db_prefix() . 'invoices.date as date,
        ' . db_prefix() . 'invoices.duedate,
        concat(' . db_prefix() . 'invoices.date, \' \', RIGHT(' . db_prefix() . 'invoices.datecreated,LOCATE(\' \',' . db_prefix() . 'invoices.datecreated) - 3)) as tmp_date,
        ' . db_prefix() . 'invoices.duedate as duedate,
        ' . db_prefix() . 'invoices.total as invoice_amount
        FROM ' . db_prefix() . 'invoices WHERE clientid =' . $this->db->escape_str($customer_id);

if ($from == $to) {
            $sqlDate = 'date="' . $this->db->escape_str($from) . '"';
        } else {
            $sqlDate = '(date BETWEEN "' . $this->db->escape_str($from) . '" AND "' . $this->db->escape_str($to) . '")';
        }

$sql .= ' AND ' . $sqlDate;

$invoices = $this->db->query($sql . '
            AND status != ' . Invoices_model::STATUS_DRAFT . '
            AND status != ' . Invoices_model::STATUS_CANCELLED . '
            ORDER By date DESC')->result_array();

// Credit notes
        $sql_credit_notes = 'SELECT
        ' . db_prefix() . 'creditnotes.id as credit_note_id,
        ' . db_prefix() . 'creditnotes.date as date,
        concat(' . db_prefix() . 'creditnotes.date, \' \', RIGHT(' . db_prefix() . 'creditnotes.datecreated,LOCATE(\' \',' . db_prefix() . 'creditnotes.datecreated) - 3)) as tmp_date,
        ' . db_prefix() . 'creditnotes.total as credit_note_amount
        FROM ' . db_prefix() . 'creditnotes WHERE clientid =' . $this->db->escape_str($customer_id) . ' AND status != 3';

$sql_credit_notes .= ' AND ' . $sqlDate;

$credit_notes = $this->db->query($sql_credit_notes)->result_array();

// Credits applied
        $sql_credits_applied = 'SELECT
        ' . db_prefix() . 'credits.id as credit_id,
        invoice_id as credit_invoice_id,
        ' . db_prefix() . 'credits.credit_id as credit_applied_credit_note_id,
        ' . db_prefix() . 'credits.date as date,
        concat(' . db_prefix() . 'credits.date, \' \', RIGHT(' . db_prefix() . 'credits.date_applied,LOCATE(\' \',' . db_prefix() . 'credits.date_applied) - 3)) as tmp_date,
        ' . db_prefix() . 'credits.amount as credit_amount
        FROM ' . db_prefix() . 'credits
        JOIN ' . db_prefix() . 'creditnotes ON ' . db_prefix() . 'creditnotes.id = ' . db_prefix() . 'credits.credit_id
        ';

$sql_credits_applied .= '
        WHERE clientid =' . $this->db->escape_str($customer_id);

$sqlDateCreditsAplied = str_replace('date', db_prefix() . 'credits.date', $sqlDate);

$sql_credits_applied .= ' AND ' . $sqlDateCreditsAplied;
        $credits_applied = $this->db->query($sql_credits_applied)->result_array();

// Replace error ambigious column in where clause
        $sqlDatePayments = str_replace('date', db_prefix() . 'invoicepaymentrecords.date', $sqlDate);

$sql_payments = 'SELECT
        ' . db_prefix() . 'invoicepaymentrecords.id as payment_id,
        ' . db_prefix() . 'invoicepaymentrecords.date as date,
        concat(' . db_prefix() . 'invoicepaymentrecords.date, \' \', RIGHT(' . db_prefix() . 'invoicepaymentrecords.daterecorded,LOCATE(\' \',' . db_prefix() . 'invoicepaymentrecords.daterecorded) - 3)) as tmp_date,
        ' . db_prefix() . 'invoicepaymentrecords.invoiceid as payment_invoice_id,
        ' . db_prefix() . 'invoicepaymentrecords.amount as payment_total
        FROM ' . db_prefix() . 'invoicepaymentrecords
        JOIN ' . db_prefix() . 'invoices ON ' . db_prefix() . 'invoices.id = ' . db_prefix() . 'invoicepaymentrecords.invoiceid
        WHERE ' . $sqlDatePayments . ' AND ' . db_prefix() . 'invoices.clientid = ' . $this->db->escape_str($customer_id) . '
        ORDER by ' . db_prefix() . 'invoicepaymentrecords.date DESC';

$payments = $this->db->query($sql_payments)->result_array();

$sqlCreditNoteRefunds = str_replace('date', 'refunded_on', $sqlDate);

$sql_credit_notes_refunds = 'SELECT id as credit_note_refund_id,
        credit_note_id as refund_credit_note_id,
        amount as refund_amount,
        concat(' . db_prefix() . 'creditnote_refunds.refunded_on, \' \', RIGHT(' . db_prefix() . 'creditnote_refunds.created_at,LOCATE(\' \',' . db_prefix() . 'creditnote_refunds.created_at) - 3)) as tmp_date,
        refunded_on as date FROM ' . db_prefix() . 'creditnote_refunds
        WHERE ' . $sqlCreditNoteRefunds . ' AND credit_note_id IN (SELECT id FROM ' . db_prefix() . 'creditnotes WHERE clientid=' . $this->db->escape_str($customer_id) . ')
        ';

$credit_notes_refunds = $this->db->query($sql_credit_notes_refunds)->result_array();

// merge results
        $merged = array_merge($invoices, $payments, $credit_notes, $credits_applied, $credit_notes_refunds);

// sort by date
        usort($merged, function ($a, $b) {
            // fake date select sorting
            return strtotime($a['tmp_date']) - strtotime($b['tmp_date']);
        });

// Define final result variable
        $result = [];
        // Store in result array key
        $result['result'] = $merged;

// Invoiced amount during the period
        $result['invoiced_amount'] = $this->db->query('SELECT
        SUM(' . db_prefix() . 'invoices.total) as invoiced_amount
        FROM ' . db_prefix() . 'invoices
        WHERE clientid = ' . $this->db->escape_str($customer_id) . '
        AND ' . $sqlDate . ' AND status != ' . Invoices_model::STATUS_DRAFT . ' AND status != ' . Invoices_model::STATUS_CANCELLED . '')
            ->row()->invoiced_amount;

if ($result['invoiced_amount'] === null) {
            $result['invoiced_amount'] = 0;
        }

$result['credit_notes_amount'] = $this->db->query('SELECT
        SUM(' . db_prefix() . 'creditnotes.total) as credit_notes_amount
        FROM ' . db_prefix() . 'creditnotes
        WHERE clientid = ' . $this->db->escape_str($customer_id) . '
        AND ' . $sqlDate . ' AND status != 3')
            ->row()->credit_notes_amount;

if ($result['credit_notes_amount'] === null) {
            $result['credit_notes_amount'] = 0;
        }

$result['refunds_amount'] = $this->db->query('SELECT
        SUM(' . db_prefix() . 'creditnote_refunds.amount) as refunds_amount
        FROM ' . db_prefix() . 'creditnote_refunds
        WHERE ' . $sqlCreditNoteRefunds . ' AND credit_note_id IN (SELECT id FROM ' . db_prefix() . 'creditnotes WHERE clientid=' . $this->db->escape_str($customer_id) . ')
        ')->row()->refunds_amount;

if ($result['refunds_amount'] === null) {
            $result['refunds_amount'] = 0;
        }

$result['invoiced_amount'] = $result['invoiced_amount'] - $result['credit_notes_amount'];

// Amount paid during the period
        $result['amount_paid'] = $this->db->query('SELECT
        SUM(' . db_prefix() . 'invoicepaymentrecords.amount) as amount_paid
        FROM ' . db_prefix() . 'invoicepaymentrecords
        JOIN ' . db_prefix() . 'invoices ON ' . db_prefix() . 'invoices.id = ' . db_prefix() . 'invoicepaymentrecords.invoiceid
        WHERE ' . $sqlDatePayments . ' AND ' . db_prefix() . 'invoices.clientid = ' . $this->db->escape_str($customer_id))
            ->row()->amount_paid;

if ($result['amount_paid'] === null) {
            $result['amount_paid'] = 0;
        }

// Beginning balance is all invoices amount before the FROM date - payments received before FROM date
        $result['beginning_balance'] = $this->db->query('
            SELECT (
            COALESCE(SUM(' . db_prefix() . 'invoices.total),0) - (
            (
            SELECT COALESCE(SUM(' . db_prefix() . 'invoicepaymentrecords.amount),0)
            FROM ' . db_prefix() . 'invoicepaymentrecords
            JOIN ' . db_prefix() . 'invoices ON ' . db_prefix() . 'invoices.id = ' . db_prefix() . 'invoicepaymentrecords.invoiceid
            WHERE ' . db_prefix() . 'invoicepaymentrecords.date < "' . $this->db->escape_str($from) . '"
            AND ' . db_prefix() . 'invoices.clientid=' . $this->db->escape_str($customer_id) . '
            ) + (
                SELECT COALESCE(SUM(' . db_prefix() . 'creditnotes.total),0)
                FROM ' . db_prefix() . 'creditnotes
                WHERE ' . db_prefix() . 'creditnotes.date < "' . $this->db->escape_str($from) . '"
                AND ' . db_prefix() . 'creditnotes.clientid=' . $this->db->escape_str($customer_id) . '
            ) - (
                SELECT COALESCE(SUM(' . db_prefix() . 'creditnote_refunds.amount),0)
                FROM ' . db_prefix() . 'creditnote_refunds
                WHERE ' . db_prefix() . 'creditnote_refunds.refunded_on < "' . $this->db->escape_str($from) . '"
                AND ' . db_prefix() . 'creditnote_refunds.credit_note_id IN (SELECT id FROM ' . db_prefix() . 'creditnotes WHERE clientid=' . $this->db->escape_str($customer_id) . ')
            )
        )
            )
            as beginning_balance FROM ' . db_prefix() . 'invoices
            WHERE date < "' . $this->db->escape_str($from) . '"
            AND clientid = ' . $this->db->escape_str($customer_id) . '
            AND status != ' . Invoices_model::STATUS_DRAFT . '
            AND status != ' . Invoices_model::STATUS_CANCELLED)
              ->row()->beginning_balance;

if ($result['beginning_balance'] === null) {
            $result['beginning_balance'] = 0;
        }

$dec = get_decimal_places();

if (function_exists('bcsub')) {
            $result['balance_due'] = bcsub($result['invoiced_amount'], $result['amount_paid'], $dec);
            $result['balance_due'] = bcadd($result['balance_due'], $result['beginning_balance'], $dec);
            $result['balance_due'] = bcadd($result['balance_due'], $result['refunds_amount'], $dec);
        } else {
            $result['balance_due'] = number_format($result['invoiced_amount'] - $result['amount_paid'], $dec, '.', '');
            $result['balance_due'] = $result['balance_due'] + number_format($result['beginning_balance'], $dec, '.', '');
            $result['balance_due'] = $result['balance_due'] + number_format($result['refunds_amount'], $dec, '.', '');
        }

// Subtract amount paid - refund, because the refund is not actually paid amount
        $result['amount_paid'] = $result['amount_paid'] - $result['refunds_amount'];

$result['client_id'] = $customer_id;
        $result['client']    = $this->clients_model->get($customer_id);
        $result['from']      = $from;
        $result['to']        = $to;

$customer_currency = $this->clients_model->get_customer_default_currency($customer_id);
        $this->load->model('currencies_model');

if ($customer_currency != 0) {
            $currency = $this->currencies_model->get($customer_currency);
        } else {
            $currency = $this->currencies_model->get_base_currency();
        }

$result['currency'] = $currency;

return hooks()->apply_filters('statement', $result);
    }

/**
     * Send customer statement to email
     * @param  mixed $customer_id customer id
     * @param  array $send_to     array of contact emails to send
     * @param  string $from        date from
     * @param  string $to          date to
     * @param  string $cc          email CC
     * @return boolean
     */
    public function send_statement_to_email($customer_id, $send_to, $from, $to, $cc = '')
    {
        $sent = false;
        if (is_array($send_to) && count($send_to) > 0) {
            $statement = $this->get_statement($customer_id, to_sql_date($from), to_sql_date($to));
            set_mailing_constant();
            $pdf = statement_pdf($statement);

$pdf_file_name = slug_it(_l('customer_statement') . '-' . $statement['client']->company);

$attach = $pdf->Output($pdf_file_name . '.pdf', 'S');

$i = 0;
            foreach ($send_to as $contact_id) {
                if ($contact_id != '') {

// Send cc only for the first contact
                    if (!empty($cc) && $i > 0) {
                        $cc = '';
                    }

$contact = $this->clients_model->get_contact($contact_id);

$template = mail_template('customer_statement', $contact->email, $contact_id, $statement, $cc);

$template->add_attachment([
                            'attachment' => $attach,
                            'filename'   => $pdf_file_name . '.pdf',
                            'type'       => 'application/pdf',
                        ]);

if ($template->send()) {
                        $sent = true;
                    }
                }
                $i++;
            }

if ($sent) {
                return true;
            }
        }

return false;
    }
}

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