<?php
/**********************************************
Author: Tom Hallman
Name: Import Multiple Journal Entries/Deposits/Payments v2.3
Free software under GNU GPL
***********************************************/
$page_security = 'SA_CSVMULTIJOURNALIMPORT';
$path_to_root="../..";

include_once($path_to_root . "/includes/ui/items_cart.inc");
include_once($path_to_root . "/gl/includes/db/gl_db_trans.inc");
include_once($path_to_root . "/includes/session.inc");
add_access_extensions();

// Turn these next two lines on for debugging
//error_reporting(E_ALL);
//ini_set("display_errors", "on");

//--------------------------------------------------------------------------------------------------

function init_entry(&$entry,$type,$date,$reference) // See gl/gl_journal::create_cart() & gl/gl_bank::handle_new_order()
{
    $entry = new items_cart($type);
    $entry->order_id = 0;
    $entry->tran_date = $date;
    $entry->reference = $reference;
    $entry->memo_ = 'Imported via \'Import Multiple Journal Entries\' plugin';
}

//--------------------------------------------------------------------------------------------------

function import_type_list_row($label, $name, $selected=null, $submit_on_change=false)
{
    $arr = array(
        ST_JOURNAL=> "Journal Entry",
        ST_BANKDEPOSIT=> "Deposit",
        ST_BANKPAYMENT=> "Payment"
    );

    echo "<tr><td class='label'>$label</td><td>";
    echo array_selector($name, $selected, $arr,
        array(
            'select_submit'=> $submit_on_change,
            'async' => false,
        ));
    echo "</td></tr>\n";
}

//--------------------------------------------------------------------------------------------------

function check_journal_entry(&$entry, $entryid)
{
    // Check that this journal entry adds up!
    if (abs($entry->gl_items_total()) > 0.0001)
    {
        display_error("Error: journal entry with entryid '$entryid' does not balance (import file: '{$_FILES['imp']['name']}')");
        return true;
    }
}

function write_trans($type, $entry, $curEntryId, $bank_account)
{
    if ($type == ST_JOURNAL)
    {
        if (!check_journal_entry($entry, $curEntryId));
            write_journal_entries($entry, false, false); // FA built-in function
    }
    elseif ($type == ST_BANKDEPOSIT || $type == ST_BANKPAYMENT) {
        add_bank_transaction($entry->trans_type, $bank_account, $entry, $entry->tran_date, // FA built-in function
            false, false, false, $entry->reference, $entry->memo_, false);
    }

}
//--------------------------------------------------------------------------------------------------

function get_dimension_id_from_reference($ref)
{
    if ($ref == null || trim($ref) == '')
        return 0;

    $sql = "SELECT id FROM ".TB_PREF."dimensions WHERE reference LIKE ".db_escape($ref);

    $result = db_query($sql, "could not get dimension from reference");

    $row = db_fetch_row($result);

    return $row[0];
}

//--------------------------------------------------------------------------------------------------
// Begin the UI
include_once($path_to_root . "/includes/ui.inc");

page("Import Multiple Journal Entries / Deposits / Payments");

// If the import button was selected, we'll process the form here.  (If not, skip to actual content below.)
if (isset($_POST['import']))
{
    if (isset($_FILES['imp']) && $_FILES['imp']['name'] != '')
    {
        $filename = $_FILES['imp']['tmp_name'];
        $sep = $_POST['sep'];
        $type = $_POST['type'];
        $bank_account = isset($_POST['bank_account']) ? $_POST['bank_account'] : "";

        // Open the file
        $fp = @fopen($filename, "r");
        if (!$fp)
        {
            display_error("Error opening file $filename");
        } else {

            // Initialize first entryid & date to be null so that a new one is established
            $curEntryId = $curDate = null;

            // Prepare the DB to receive the imported journal entries
            begin_transaction();

            // Process the import file
            $line = 0;
            $entryCount = 0;
            $error = false;
            $errCnt = 0;
            while ($data = fgetcsv($fp, 4096, $sep))
            {
                // Skip the first line, as it's a header
                if ($line++ == 0) continue;

                // Skip blank lines (which shouldn't happen in a well-formed CSV, but we'll be safe)
                if (count($data) == 1) continue;

                // Parse the row of data; Format: entryid,date,reference,accountcode,dimension1,dimension2,amount,memo
                list($entryid, $date, $reference, $code, $dim1_ref, $dim2_ref, $amt, $memo, $person_id) = $data;

                // If the entryid has changed, create the current journal entry (if there was one) and start a new one
                if ($entryid != $curEntryId) {

                    // Check that date is properly-formatted
                    if (!is_date($date)) {
                        display_error("Error: date '$date' not properly formatted (line $line in import file '{$_FILES['imp']['name']}')");
                        $error = true;
                    }

                    // Check that the date is in range
                    if (!is_date_in_fiscalyear($date)) {
                        display_error("Error: date not in fiscal year (line $line in import file '{$_FILES['imp']['name']}')");
                        $error = true;
                    }

                    // Assign a default reference if it is not specified
                    if ($reference == '') {
                        // If the entryid has shifted but date is the same, it needs another reference
                        if ($date == $curDate)
                            $refCount++;
                        else // else the entryid and date have shifted, so we can start with a new reference
                            $refCount = 1;
                        list($day, $month, $year) = explode_date_to_dmy($date);
                        $reference = "$month/$day-$refCount";
                    }

                    // Check that the reference is not in use
                    global $Refs;
                    if (!$Refs->is_new_reference($reference,$type)) {
                        display_error("Error: reference '$reference' is already in use (line $line in import file '{$_FILES['imp']['name']}')");
                        $error = true;
                    }

                    // All good! Initialize a new entry
                    if ($curEntryId != null) {
                        if (!$error)
                        {
                            write_trans($type, $entry, $curEntryId, $bank_account);
                            $entryCount++;
                        }
                    }
                    if ($error)
                        $errCnt++;
                    $error = false;
                    init_entry($entry,$type,$date,$reference);
                    $curEntryId = $entryid;
                    $curDate = $date;
                }

                if ($entryid == '') {
                    display_error("Error: entryid not specified (line $line in import file '{$_FILES['imp']['name']}')");
                    $error = true;
                }
                // Check that the account code exists
                if (get_gl_account($code) == null) {
                    display_error("Error: Could not find account code '$code' (line $line in import file '{$_FILES['imp']['name']}')");
                    $error = true;
                }
                // Check that dimension 1 exists
                $dim1 = get_dimension_id_from_reference($dim1_ref);
                if ($dim1_ref != '' && $dim1 == null) {
                    display_error("Error: Could not find dimension with reference '$dim1_ref' (line $line in import file '{$_FILES['imp']['name']}')");
                    $error = true;
                }
                // Check that dimension 2 exists
                $dim2 = get_dimension_id_from_reference($dim2_ref);
                if ($dim2_ref != '' && $dim2 == null) {
                    display_error("Error: Could not find dimension with reference '$dim2_ref' (line $line in import file '{$_FILES['imp']['name']}')");
                    $error = true;
                }

                if ($type == ST_BANKDEPOSIT)
                    $amt = -$amt;

                // Add to the journal entry / deposit / payment
                if (!$error)
                    $entry->add_gl_item($code, $dim1, $dim2, $amt, $memo,'',$person_id);
            }

            // Process final entries in the file
            if (!$error)
            {
                if ($curEntryId != null) {
                    write_trans($type, $entry, $curEntryId, $bank_account);
                    $entryCount++;
                }
            } else
                $errCnt++;

            @fclose($fp);

            // Commit import to database
            if (!$errCnt)
                commit_transaction();

            if ($type == ST_JOURNAL)
                $typeString = "journal entries";
            elseif ($type == ST_BANKDEPOSIT)
                $typeString = "deposits";
            elseif ($type == ST_BANKPAYMENT)
                $typeString = "payments";

            if (!$errCnt) {
                if ($entryCount > 0)
                    display_notification_centered("$entryCount $typeString have been imported.");
                else
                    display_error("Import file contained no $typeString.");
            }
        }
    }
    else
        display_error("No import file selected");
}

start_form(true);

start_table(TABLESTYLE2);

if (!isset($_POST['type']))
    $_POST['type'] = ST_JOURNAL;

if (!isset($_POST['sep']))
    $_POST['sep'] = ",";

    echo ' | ';
    echo "<a href=https://my.pakerp.net/modules/import_multijournalentries/Journal_Entry.cs>Click Here To Download Sample File For Import </a>";
    echo "<br> There should be no Comma (,) in any value in any column. Please double check before import";
    echo "<br> For Customers Opening Balance person_id shall contain debtor_no field value and code shall be Accounts Receivable Code.";
    echo "<br> For Suppliers Opening Balance person_id shall contain supplier_id field value and code shall be Accounts Payable Code.";

table_section_title("Import Settings");
import_type_list_row("Import Type:", 'type', $_POST['type'], true);
if ($_POST['type'] != ST_JOURNAL)
    bank_accounts_list_row( $_POST['type'] == ST_BANKPAYMENT ? _("From:") : _("To:"), 'bank_account', null, false);
text_row("Field Separator:", 'sep', $_POST['sep'], 2, 1);
label_row("Import File:", "<input type='file' id='imp' name='imp'>");

end_table(1);

submit_center('import', "Perform Import");//,true,false,'process',ICON_SUBMIT);

end_form();

end_page();

if $Refs->exists($type, $reference)) {

if (!($Refs->is_new_reference($reference,$type))) {