<?php

//******************************************************************************//
//--------------- Take edit ----------------------------------------------------//
// This pages handles the backend of the 'edit torrent' function. It checks     //
// the data, and if it all validates, it edits the values in the database       //
// that correspond to the torrent in question.                                  //
//******************************************************************************//

enforce_login();
authorize();

require_once(SERVER_ROOT.'/classes/validate.class.php');
$Validate = new Validate;

//******************************************************************************//
//--------------- Set $Properties array ----------------------------------------//
// This is used if the form doesn't validate, and when the time comes to enter  //
// it into the database.                                                        //
//******************************************************************************//

$Properties=[];
$_POST['type'] = $_POST['type'] + 1;
$TypeID = (int)$_POST['type'];
$Type = $Categories[$TypeID-1];
$TorrentID = (int)$_POST['torrentid'];

$Properties['Remastered'] = (isset($_POST['remaster']))? 1 : 0;
if ($Properties['Remastered']) {
    $Properties['UnknownRelease'] = (isset($_POST['unknown'])) ? 1 : 0;
}
if (!$Properties['Remastered']) {
    $Properties['UnknownRelease'] = 0;
}

$Properties['BadTags'] = (isset($_POST['bad_tags']))? 1 : 0;
$Properties['BadFolders'] = (isset($_POST['bad_folders']))? 1 : 0;
$Properties['BadFiles'] = (isset($_POST['bad_files'])) ? 1 : 0;
$Properties['Trumpable'] = (isset($_POST['make_trumpable'])) ? 1 : 0;

$Properties['Format'] = $_POST['format'];
$Properties['Media'] = $_POST['media'];
$Properties['Bitrate'] = $_POST['bitrate'];
$Properties['Encoding'] = $_POST['bitrate'];
$Properties['TorrentDescription'] = $_POST['release_desc'];
$Properties['MediaInfo'] = $_POST['mediainfo'];
$Properties['Name'] = $_POST['title'];
$Properties['Codec'] = $_POST['codec'];
$Properties['Resolution'] = $_POST['resolution'];
$Properties['AudioFormat'] = $_POST['audioformat'];
$Properties['Subbing'] = $_POST['sub'];
$Properties['Language'] = $_POST['lang'];
$Properties['Subber']= $_POST['subber'];

$Properties['Censored'] = (isset($_POST['censored'])) ? '1' : '0';
$Properties['Anonymous'] = (isset($_POST['anonymous'])) ? '1' : '0';

$Properties['Container'] = (isset($_POST['container']) && $_POST['container'] !== 'Autofill') ? $_POST['container'] : '';
$Properties['Archive'] = (isset($_POST['archive']) && $_POST['archive'] !== 'Autofill') ? $_POST['archive'] : '';

if ($_POST['album_desc']) {
    $Properties['GroupDescription'] = $_POST['album_desc'];
}

if (check_perms('torrents_freeleech')) {
    $Free = (int)$_POST['freeleech'];
    if (!in_array($Free, array(0, 1, 2))) {
        error(404);
    }
    $Properties['FreeLeech'] = $Free;

    if ($Free === 0) {
        $FreeType = 0;
    } else {
        $FreeType = (int)$_POST['freeleechtype'];
        if (!in_array($Free, array(0, 1, 2, 3))) {
            error(404);
        }
    }
    $Properties['FreeLeechType'] = $FreeType;
}

//******************************************************************************//
//--------------- Validate data in edit form -----------------------------------//

/*
$DB->query("
  SELECT UserID, Remastered, RemasterYear, FreeTorrent
  FROM torrents
  WHERE ID = $TorrentID");
*/

$DB->query("
  SELECT UserID, FreeTorrent
  FROM torrents
  WHERE ID = $TorrentID");

if (!$DB->has_results()) {
    error(404);
}

// list($UserID, $Remastered, $RemasterYear, $CurFreeLeech) = $DB->next_record(MYSQLI_BOTH, false);
list($UserID, $CurFreeLeech) = $DB->next_record(MYSQLI_BOTH, false);

if ($LoggedUser['ID'] != $UserID && !check_perms('torrents_edit')) {
    error(403);
}

/*
todo: Check strict equality and untangle features
if ($Remastered === '1' && !$RemasterYear && !check_perms('edit_unknowns')) {
  error(403);
}
*/

if ($Properties['UnknownRelease'] && !($Remastered === '1' && !$RemasterYear) && !check_perms('edit_unknowns')) {
    // It's Unknown now, and it wasn't before
    if ($LoggedUser['ID'] !== $UserID) {
        // Hax
        die();
    }
}

$Validate->SetFields(
    'type',
    '1',
    'number',
    'Not a valid type',
    array('maxlength' => count($Categories), 'minlength' => 1)
);

/* Ugh
switch ($Type) {
  case 'Music':
    if (!empty($Properties['Remastered']) && !$Properties['UnknownRelease']) {
        $Validate->SetFields(
            'remaster_year',
            '1',
            'number',
            'Year of remaster/re-issue must be entered'
        );
    } else {
        $Validate->SetFields(
            'remaster_year',
            '0',
            'number',
            'Invalid remaster year'
        );
    }

    if (!empty($Properties['Remastered']) && !$Properties['UnknownRelease'] && $Properties['RemasterYear'] < 1982 && $Properties['Media'] === 'CD') {
        error('You have selected a year for an album that predates the medium you say it was created on');
        header("Location: torrents.php?action=edit&id=$TorrentID");
        die();
    }

    $Validate->SetFields(
        'remaster_title',
        '0',
        'string',
        'Remaster title must be between 2 and 80 characters',
        array('maxlength' => 80, 'minlength' => 2)
    );

    if ($Properties['RemasterTitle'] === 'Original Release') {
        error('"Original Release" is not a valid remaster title');
        header("Location: torrents.php?action=edit&id=$TorrentID");
        die();
    }

    $Validate->SetFields(
        'remaster_record_label',
        '0',
        'string',
        'Remaster record label must be between 2 and 80 characters',
        array('maxlength' => 80, 'minlength' => 2)
    );

    $Validate->SetFields(
        'remaster_catalogue_number',
        '0',
        'string',
        'Remaster catalogue number must be between 2 and 80 characters',
        array('maxlength' => 80, 'minlength' => 2)
    );
    */

    $Validate->SetFields(
        'format',
        '1',
        'inarray',
        'Not a valid format',
        array('inarray' => $Formats)
    );

    /*
    $Validate->SetFields(
        'bitrate',
        '1',
        'inarray',
        'You must choose a bitrate',
        array('inarray' => $Bitrates)
    );


    // Handle 'other' bitrates
    if ($Properties['Encoding'] === 'Other') {
        $Validate->SetFields(
            'other_bitrate',
            '1',
            'text',
            'You must enter the other bitrate (max length: 9 characters)',
            array('maxlength' => 9)
        );

        $enc = trim($_POST['other_bitrate']);
        if (isset($_POST['vbr'])) {
            $enc .= ' (VBR)';
        }

        $Properties['Encoding'] = $enc;
        $Properties['Bitrate'] = $enc;
    } else {
        $Validate->SetFields(
            'bitrate',
            '1',
            'inarray',
            'You must choose a bitrate',
            array('inarray' => $Bitrates)
        );
    }
    */

    /* Broken 2020-03-10
    $Validate->SetFields(
        'media',
        '1',
        'inarray',
        'Not a valid media',
        array('inarray' => $Media)
    );
    */

    /*
    $Validate->SetFields(
        'release_desc',
        '0',
        'string',
        'Invalid release description',
        array('maxlength' => 1000000, 'minlength' => 0)
    );
    break;

  default:
    break;
}
*/

$Err = $Validate->ValidateForm($_POST); // Validate the form

/*
if ($Properties['Remastered'] && !$Properties['RemasterYear']) {
    // Unknown Edit!
    if ($LoggedUser['ID'] === $UserID || check_perms('edit_unknowns')) {
        // Fine!
    } else {
        $Err = "You may not edit someone else's upload to unknown release";
    }
}
*/

// Strip out Amazon's padding
$AmazonReg = '/(http:\/\/ecx.images-amazon.com\/images\/.+)(\._.*_\.jpg)/i';
$Matches = [];
if (preg_match($RegX, $Properties['Image'], $Matches)) {
    $Properties['Image'] = $Matches[1].'.jpg';
}
ImageTools::blacklisted($Properties['Image']);

if ($Err) { // Show the upload form, with the data the user entered
    if (check_perms('site_debug')) {
        die($Err);
    }
    error($Err);
}

//******************************************************************************//
//--------------- Make variables ready for database input ----------------------//

// Shorten and escape $Properties for database input
$T = [];
foreach ($Properties as $Key => $Value) {
    $T[$Key] = "'".db_string(trim($Value))."'";
    if (!$T[$Key]) {
        $T[$Key] = null;
    }
}

$T['Censored'] = $Properties['Censored'];
$T['Anonymous'] = $Properties['Anonymous'];

$T['Container'] = $Properties['Container'];
$T['Archive'] = $Properties['Archive'];

//******************************************************************************//
//--------------- Autofill format and archive ----------------------------------//

# Load FileList in lieu of $Tor object
# todo: Format the output for  $Validate->ParseExtensions()
#var_dump($T['FileList']);

# Disable the extension parser for edits
# todo: Make this work with $T['FileList']
if ($T['Container'] === 'Autofill'
 || $T['Archive'] === 'Autofill') {
    $Err = 'Extension parsing is only possible for new uploads';
    error($Err);
}
    
//******************************************************************************//
//--------------- Start database stuff -----------------------------------------//

$DBTorVals = [];
$DB->query("
  SELECT Media, Container, Codec, Resolution, AudioFormat, Subbing, Language, Description, MediaInfo, Censored, Anonymous, Archive, Subber
  FROM torrents
  WHERE ID = $TorrentID");
$DBTorVals = $DB->to_array(false, MYSQLI_ASSOC);
$DBTorVals = $DBTorVals[0];
$LogDetails = '';
foreach ($DBTorVals as $Key => $Value) {
    $Value = "'$Value'";
    if ($Value !== $T[$Key]) {
        if (!isset($T[$Key])) {
            continue;
        }
        if ((empty($Value) && empty($T[$Key])) || ($Value === "'0'" && $T[$Key] === "''")) {
            continue;
        }
        if ($LogDetails === '') {
            $LogDetails = "$Key: $Value -> ".$T[$Key];
        } else {
            $LogDetails = "$LogDetails, $Key: $Value -> ".$T[$Key];
        }
    }
}

// Update info for the torrent
/*
$SQL = "
  UPDATE torrents
  SET
    Media = $T[Media],
    Format = $T[Format],
    Encoding = $T[Encoding],
    RemasterYear = $T[RemasterYear],
    Remastered = $T[Remastered],
    RemasterTitle = $T[RemasterTitle],
    RemasterRecordLabel = $T[RemasterRecordLabel],
    RemasterCatalogueNumber = $T[RemasterCatalogueNumber],
    Scene = $T[Scene],";
*/

$SQL = "
  UPDATE torrents
  SET
    Media = $T[Media],
    Container = '$T[Container]',
    Codec = $T[Codec],
    Resolution = $T[Resolution],
    AudioFormat = $T[AudioFormat],
    Subbing = $T[Subbing],
    Language = $T[Language],
    Subber = $T[Subber],
    Archive = '$T[Archive]',
    MediaInfo = $T[MediaInfo],
    Censored = $T[Censored],
    Anonymous = $T[Anonymous],";

if (check_perms('torrents_freeleech')) {
    $SQL .= "FreeTorrent = $T[FreeLeech],";
    $SQL .= "FreeLeechType = $T[FreeLeechType],";
}

if (check_perms('users_mod')) {
    /*
    if ($T[Format] !== "'FLAC'") {
        $SQL .= "
          HasLog = '0',
          HasCue = '0',";
      } else {
        $SQL .= "
          HasLog = $T[HasLog],
          HasCue = $T[HasCue],";
      }
    */
    $DB->query("
    SELECT TorrentID
    FROM torrents_bad_tags
    WHERE TorrentID = '$TorrentID'");
    list($btID) = $DB->next_record();

    if (!$btID && $Properties['BadTags']) {
        $DB->query("
      INSERT INTO torrents_bad_tags
      VALUES ($TorrentID, $LoggedUser[ID], NOW())");
    }
    if ($btID && !$Properties['BadTags']) {
        $DB->query("
      DELETE FROM torrents_bad_tags
      WHERE TorrentID = '$TorrentID'");
    }

    $DB->query("
    SELECT TorrentID
    FROM torrents_bad_folders
    WHERE TorrentID = '$TorrentID'");
    list($bfID) = $DB->next_record();

    if (!$bfID && $Properties['BadFolders']) {
        $DB->query("
      INSERT INTO torrents_bad_folders
      VALUES ($TorrentID, $LoggedUser[ID], NOW())");
    }
    if ($bfID && !$Properties['BadFolders']) {
        $DB->query("
      DELETE FROM torrents_bad_folders
      WHERE TorrentID = '$TorrentID'");
    }

    $DB->query("
    SELECT TorrentID
    FROM torrents_bad_files
    WHERE TorrentID = '$TorrentID'");
    list($bfiID) = $DB->next_record();

    if (!$bfiID && $Properties['BadFiles']) {
        $DB->query("
      INSERT INTO torrents_bad_files
      VALUES ($TorrentID, $LoggedUser[ID], NOW())");
    }
    if ($bfiID && !$Properties['BadFiles']) {
        $DB->query("
      DELETE FROM torrents_bad_files
      WHERE TorrentID = '$TorrentID'");
    }

    $DB->query("
    SELECT TorrentID
    FROM library_contest
    WHERE TorrentID = '$TorrentID'");
    list($lbID) = $DB->next_record();
    if (!$lbID && $Properties['LibraryUpload'] && $Properties['LibraryPoints'] > 0) {
        $DB->query("
      SELECT UserID
      FROM torrents
      WHERE ID = $TorrentID");
        list($UploaderID) = $DB->next_record();
        $DB->query("
      INSERT INTO library_contest
      VALUES ($UploaderID, $TorrentID, $Properties[LibraryPoints])");
    }
    if ($lbID && !$Properties['LibraryUpload']) {
        $DB->query("
      DELETE FROM library_contest
      WHERE TorrentID = '$TorrentID'");
    }
}

$SQL .= "
    Description = $T[TorrentDescription]
  WHERE ID = $TorrentID";
$DB->query($SQL);

if (check_perms('torrents_freeleech') && $Properties['FreeLeech'] != $CurFreeLeech) {
    Torrents::freeleech_torrents($TorrentID, $Properties['FreeLeech'], $Properties['FreeLeechType']);
}

$DB->query("
  SELECT GroupID, Time
  FROM torrents
  WHERE ID = '$TorrentID'");
list($GroupID, $Time) = $DB->next_record();

// Competition
if (strtotime($Time) > 1241352173) {
    if ($_POST['log_score'] === '100') {
        $DB->query("
      INSERT IGNORE into users_points (GroupID, UserID, Points)
      VALUES ('$GroupID', '$UserID', '1')");
    }
}
// End competiton

$DB->query("
  SELECT Enabled
  FROM users_main
  WHERE ID = $UserID");
list($Enabled) = $DB->next_record();

$DB->query("
  SELECT Name
  FROM torrents_group
  WHERE ID = $GroupID");
list($Name) = $DB->next_record(MYSQLI_NUM, false);

Misc::write_log("Torrent $TorrentID ($Name) in group $GroupID was edited by ".$LoggedUser['Username']." ($LogDetails)"); // todo: This is probably broken
Torrents::write_group_log($GroupID, $TorrentID, $LoggedUser['ID'], $LogDetails, 0);
$Cache->delete_value("torrents_details_$GroupID");
$Cache->delete_value("torrent_download_$TorrentID");

Torrents::update_hash($GroupID);
// All done!

header("Location: torrents.php?id=$GroupID");