<?php

/*
 * ITFlow - GET/POST request handler for trips (accounting related)
 */

if (isset($_POST['add_trip'])) {

    require_once('post/trip_model.php');

    mysqli_query($mysqli,"INSERT INTO trips SET trip_date = '$date', trip_source = '$source', trip_destination = '$destination', trip_miles = $miles, round_trip = $roundtrip, trip_purpose = '$purpose', trip_user_id = $user_id, trip_client_id = $client_id");

    //logging
    mysqli_query($mysqli,"INSERT INTO logs SET log_type = 'Trip', log_action = 'Create', log_description = '$session_name logged trip to $destination', log_ip = '$session_ip', log_user_agent = '$session_user_agent', log_client_id = $client_id, log_user_id = $session_user_id");

    $_SESSION['alert_message'] = "Trip added";

    header("Location: " . $_SERVER["HTTP_REFERER"]);

}

if (isset($_POST['edit_trip'])) {

    require_once('post/trip_model.php');

    $trip_id = intval($_POST['trip_id']);

    mysqli_query($mysqli,"UPDATE trips SET trip_date = '$date', trip_source = '$source', trip_destination = '$destination', trip_miles = $miles, trip_purpose = '$purpose', round_trip = $roundtrip, trip_user_id = $user_id, trip_client_id = $client_id WHERE trip_id = $trip_id");

    //Logging
    mysqli_query($mysqli,"INSERT INTO logs SET log_type = 'Trip', log_action = 'Modify', log_description = '$date', log_ip = '$session_ip', log_user_agent = '$session_user_agent', log_client_id = $client_id, log_user_id = $session_user_id");

    $_SESSION['alert_message'] = "Trip modified";

    header("Location: " . $_SERVER["HTTP_REFERER"]);

}

if (isset($_GET['delete_trip'])) {
    $trip_id = intval($_GET['delete_trip']);

    //Get Client ID
    $row = mysqli_fetch_assoc(mysqli_query($mysqli,"SELECT * FROM trips WHERE trip_id = $trip_id"));
    $client_id = intval($row['trip_client_id']);

    mysqli_query($mysqli,"DELETE FROM trips WHERE trip_id = $trip_id");

    //Logging
    mysqli_query($mysqli,"INSERT INTO logs SET log_type = 'Trip', log_action = 'Delete', log_description = '$trip_id', log_ip = '$session_ip', log_user_agent = '$session_user_agent', log_client_id = $client_id, log_user_id = $session_user_id");

    $_SESSION['alert_message'] = "Trip deleted";

    header("Location: " . $_SERVER["HTTP_REFERER"]);

}

if (isset($_POST['export_trips_csv'])) {
    $date_from = sanitizeInput($_POST['date_from']);
    $date_to = sanitizeInput($_POST['date_to']);
    if(!empty($date_from) && !empty($date_to)){
        $date_query = "AND DATE(trip_date) BETWEEN '$date_from' AND '$date_to'";
        $file_name_date = "$date_from-to-$date_to";
    }else{
        $date_query = "";
        $file_name_date = date('Y-m-d');
    }

    //get records from database
    $sql = mysqli_query($mysqli,"SELECT * FROM trips 
        LEFT JOIN clients ON trip_client_id = client_id
        WHERE $date_query
        ORDER BY trip_date DESC"
    );

    if(mysqli_num_rows($sql) > 0){
        $delimiter = ",";
        $filename = "$session_company_name-Trips-$file_name_date.csv";

        //create a file pointer
        $f = fopen('php://memory', 'w');

        //set column headers
        $fields = array('Date', 'Purpose', 'Source', 'Destination', 'Miles');
        fputcsv($f, $fields, $delimiter);

        //output each row of the data, format line as csv and write to file pointer
        while($row = mysqli_fetch_assoc($sql)){
            $lineData = array($row['trip_date'], $row['trip_purpose'], $row['trip_source'], $row['trip_destination'], $row['trip_miles']);
            fputcsv($f, $lineData, $delimiter);
        }

        //move back to beginning of file
        fseek($f, 0);

        //set headers to download file rather than displayed
        header('Content-Type: text/csv');
        header('Content-Disposition: attachment; filename="' . $filename . '";');

        //output all remaining data on a file pointer
        fpassthru($f);
    }
    exit;

}

if (isset($_POST['export_client_trips_csv'])) {
    $client_id = intval($_POST['client_id']);

    //get records from database
    $sql = mysqli_query($mysqli,"SELECT * FROM clients WHERE client_id = $client_id");
    $row = mysqli_fetch_array($sql);

    $client_name = $row['client_name'];

    $sql = mysqli_query($mysqli,"SELECT * FROM trips WHERE trip_client_id = $client_id ORDER BY trip_date ASC");
    if($sql->num_rows > 0){
        $delimiter = ",";
        $filename = $client_name . "-Trips-" . date('Y-m-d') . ".csv";

        //create a file pointer
        $f = fopen('php://memory', 'w');

        //set column headers
        $fields = array('Date', 'Purpose', 'Source', 'Destination', 'Miles');
        fputcsv($f, $fields, $delimiter);

        //output each row of the data, format line as csv and write to file pointer
        while($row = $sql->fetch_assoc()){
            $lineData = array($row['trip_date'], $row['trip_purpose'], $row['trip_source'], $row['trip_destination'], $row['trip_miles']);
            fputcsv($f, $lineData, $delimiter);
        }

        //move back to beginning of file
        fseek($f, 0);

        //set headers to download file rather than displayed
        header('Content-Type: text/csv');
        header('Content-Disposition: attachment; filename="' . $filename . '";');

        //output all remaining data on a file pointer
        fpassthru($f);
    }
    exit;

}