<?php
// $Id: stormexpense.module,v 1.4.2.9 2008-08-03 17:51:07 robertogerola Exp $

/**
 * @file
 */

function stormexpense_help($path) {
  $o = '';

  switch ($path) {
    case "admin/help#stormexpense":
      $o = '<p>'. t("Provides expense support for Storm") .'</p>';
      break;
  }

  return $o;
}

function stormexpense_perm() {
  return array(
                'Storm expense: access',
                'Storm expense: add',
                'Storm expense: delete all',
                'Storm expense: delete own',
                'Storm expense: delete of user organization',
                'Storm expense: edit all',
                'Storm expense: edit own',
                'Storm expense: edit of user organization',
                'Storm expense: view all',
                'Storm expense: view own',
                'Storm expense: view of user organization',
  );
}

function stormexpense_access($op, $node) {
  global $user; $account = $user;

  if ($op == 'create') {
    return user_access('Storm expense: add');
  }

  if (is_numeric($node)) $node = node_load($node);

  if ($op == 'delete') {
    if (user_access('Storm expense: delete all')) {
      return TRUE;
    }
    else if (user_access('Storm expense: delete own') && ($account->uid == $node->uid)) {
      return TRUE;
    }
    else if (user_access('Storm expense: delete of user organization') && ($account->stormorganization_nid == $node->organization_nid)) {
      return TRUE;
    }
  }

  if ($op == 'update') {
    if (user_access('Storm expense: edit all')) {
      return TRUE;
    }
    else if (user_access('Storm expense: edit own') && ($account->uid == $node->uid)) {
      return TRUE;
    }
    else if (user_access('Storm expense: edit of user organization') && ($account->stormorganization_nid == $node->organization_nid)) {
      return TRUE;
    }
  }

  if ($op == 'view') {
    if (user_access('Storm expense: view all')) {
      return TRUE;
    }
    else if (user_access('Storm expense: view own') && ($account->uid == $node->uid)) {
      return TRUE;
    }
    else if (user_access('Storm expense: view of user organization') && ($account->stormorganization_nid == $node->organization_nid)) {
      return TRUE;
    }
  }
  return FALSE;
}

function stormexpense_access_sql($sql, $where = array()) {
  if (user_access('Storm expense: view all')) {
    $where[] = "'storm_access'='storm_access'";
    return storm_rewrite_sql($sql, $where);
  }

  global $user;

  $cond = '';
  if (user_access('Storm expense: view own')) {
    $cond .= 'n.uid='. $user->uid;
  }
  if (user_access('Storm expense: view of user organization')) {
    if (!empty($cond)) $cond .= ' OR ';
    $cond .= 'sex.organization_nid='. $user->stormorganization_nid;
  }
  if (empty($cond)) $cond = '0=1';
  $where[] = $cond;

  $where[] = "'storm_access'='storm_access'";
  return storm_rewrite_sql($sql, $where);
}

function stormexpense_storm_rewrite_where_sql($query, $primary_table, $account) {
  static $conds = array();

  if (!$account) {
    global $user;
    $account = $user;
  }

  if ($conds[$account->uid]) {
    return $conds[$account->uid];
  }

  if (preg_match("/'storm_access'='storm_access'/", $query)) {
    $cond = '';
  }
  else {
    if (user_access('Storm expense: view all', $account)) {
      return '';
    }

    $cond = '';
    if (user_access('Storm expense: view own', $account)) {
      $cond .= "${primary_table}.uid=". $account->uid;
    }
    if (user_access('Storm expense view of user organization', $account)) {
      if ($cond) $cond .= ' OR ';
      $cond .= 'sex1.organization_nid='. $account->stormorganization_nid;
    }
    if ($cond) {
      $cond = "WHEN 'stormexpense' THEN (SELECT IF($cond,1,0) FROM {stormexpense} sex1 WHERE sex1.vid=${primary_table}.vid) ";
    }
    else {
      $cond = "WHEN 'stormexpense' THEN 0 ";
    }
  }

  $conds[$account->uid] = $cond;
  return $cond;
}

function stormexpense_menu($may_cache) {
  $items = array();

  if (!$may_cache) {
    if (arg(0)=='storm' && arg(1)=='expenses') {
      require_once(drupal_get_path('module', 'stormexpense') .'/stormexpense.admin.inc');
      require_once(drupal_get_path('module', 'stormexpense') .'/stormexpense.theme.inc');
    }
    $items[] = array(
      'path' => 'storm/expenses',
      'title' => t('Expenses'),
      'description' => t('Storm expenses'),
      'callback' => 'stormexpense_list',
      'access' => user_access('Storm expense: access'),
      'type' => MENU_NORMAL_ITEM,
    );
    $items[] = array(
      'path' => 'storm/expenses/provider_autocomplete',
      'title' => 'Provider autocomplete',
      'callback' => 'stormexpense_autocomplete',
      'access' => user_access('Storm expense: access'),
      'type' => MENU_CALLBACK,
    );
    $items[] = array(
      'path' => 'storm/expenses/report',
      'title' => t('Expenses'),
      'description' => t('Storm expenses'),
      'callback' => 'stormexpense_list_report',
      'callback arguments' => array(arg(3), arg(4)),
      'access arguments' => array('Storm expense: access'),
      'type' => MENU_CALLBACK,
    );
  }

  return $items;
}

function stormexpense_node_info() {
  return array(
    'stormexpense' => array(
      'name' => t('Expense'),
      'module' => 'stormexpense',
      'description' => t("An expense for Storm."),
      'title_label' => t("Title"),
      'body_label' => t("Description"),
    )
  );
}

function stormexpense_storm_indexpage() {
  $o = array();
  $o['stormexpense']['title'] =  l(t('Expenses'), 'storm/expenses');
  return $o;
}

function stormexpense_stormorganization_change($organization_nid, $organization_title) {
  $s = "UPDATE {stormexpense} SET organization_title='%s' WHERE organization_nid=%d AND organization_title <> '%s'";
  db_query($s, $organization_title, $organization_nid, $organization_title);
}

function stormexpense_stormproject_change($project_nid, $project_title) {
  $s = "UPDATE {stormexpense} SET project_title='%s' WHERE project_nid=%d AND project_title <> '%s'";
  db_query($s, $project_title, $project_nid, $project_title);
}

function stormexpense_stormtask_change($task_nid, $task_stepno, $task_title) {
  $s = "UPDATE {stormexpense} SET task_title='%s', task_stepno='%s' WHERE task_nid=%d AND
      (task_title<>'%s' OR task_stepno<>'%s')";
  db_query($s, $task_title, $task_stepno, $task_nid, $task_title, $task_stepno);
}

function stormexpense_stormticket_change($ticket_nid, $ticket_title) {
  $s = "UPDATE {stormexpense} SET ticket_title='%s' WHERE ticket_nid=%d AND ticket_title <> '%s'";
  db_query($s, $ticket_title, $ticket_nid, $ticket_title);
}

function stormexpense_form(&$node) {
  if (arg(1)=='add') {
    $node->organization_nid = variable_get('storm_organization_nid', 0);

    if (array_key_exists('organization_nid', $_GET) && !$node->organization_nid) {
      $node->organization_nid = $_GET['organization_nid'];
    }
    if (array_key_exists('project_nid', $_GET) && !$node->project_nid) {
      $node->project_nid = $_GET['project_nid'];
      $p = node_load($node->project_nid);
      $node->organization_nid = $p->organization_nid;
    }
    if (array_key_exists('task_nid', $_GET) && !$node->task_nid) {
      $node->task_nid = $_GET['task_nid'];
      $t = node_load($node->task_nid);
      $node->organization_nid = $t->organization_nid;
      $node->project_nid = $t->project_nid;
    }
    if (array_key_exists('ticket_nid', $_GET) && !$node->ticket_nid) {
      $node->ticket_nid = $_GET['ticket_nid'];
      $t = node_load($node->ticket_nid);
      $node->organization_nid = $t->organization_nid;
      $node->project_nid = $t->project_nid;
      $node->task_nid = $t->task_nid;
    }

    if ($_SESSION['stormexpense_list_filter']['organization_nid'] && !$node->organization_nid) {
      $node->organization_nid = $_SESSION['stormexpense_list_filter']['organization_nid'];
    }
    if ($_SESSION['stormexpense_list_filter']['project_nid'] && !$node->project_nid) {
      $node->project_nid = $_SESSION['stormexpense_list_filter']['project_nid'];
    }
    if ($_SESSION['stormexpense_list_filter']['task_nid'] && !$node->task_nid) {
      $node->task_nid = $_SESSION['stormexpense_list_filter']['task_nid'];
    }
    if ($_SESSION['stormexpense_list_filter']['ticket_nid'] && !$node->ticket_nid) {
      $node->ticket_nid = $_SESSION['stormexpense_list_filter']['ticket_nid'];
    }
    if (array_key_exists('organization_nid', $_GET)) $node->organization_nid = $_GET['organization_nid'];
    if (array_key_exists('project_nid', $_GET)) $node->project_nid = $_GET['project_nid'];
    if (array_key_exists('task_nid', $_GET)) $node->task_nid = $_GET['task_nid'];
    if (array_key_exists('ticket_nid', $_GET)) $node->ticket_nid = $_GET['ticket_nid'];

    $node->expensedate = time();
  }

  $type = node_get_types('type', $node);

  $form['group1'] = array(
    '#type' => 'markup',
    '#theme' => 'storm_form_group',
    '#weight' => -50,
  );

  $form['group1']['title'] = array(
    '#type' => 'textfield',
    '#title' => check_plain($type->title_label),
    '#required' => TRUE,
    '#default_value' => $node->title,
  );

  $form['group2'] = array(
    '#type' => 'markup',
    '#theme' => 'storm_form_group',
    '#weight' => -49,
  );

  $s = "SELECT n.nid, n.title FROM {node} AS n INNER JOIN {stormorganization} AS sor
  ON sor.nid=n.nid WHERE n.status=1 AND n.type='stormorganization' ORDER BY n.title";
  $s = stormorganization_access_sql($s);
  $s = db_rewrite_sql($s);
  $r = db_query($s);
  $organizations = array();
  while ($organization = db_fetch_object($r)) {
    $organizations[$organization->nid] = $organization->title;
    if (!$node->organization_nid) $node->organization_nid = $organization->nid;
  }
  $form['group2']['organization_nid'] = array(
    '#type' => 'select',
    '#title' => t('Organization'),
    '#default_value' => $node->organization_nid,
    '#options' => $organizations,
    '#required' => true,
    '#attributes' => array('onchange' => "stormticket_organization_project_task_tickets(this, 'edit-project-nid', 'edit-task-nid', 'edit-ticket-nid', true, '-')"),
  );

  $s = "SELECT n.nid, n.title FROM {node} AS n INNER JOIN {stormproject} AS spr ON spr.vid=n.vid
  WHERE spr.organization_nid=%d AND n.status=1 AND n.type='stormproject' ORDER BY n.title";
  $s = stormproject_access_sql($s);
  $s = db_rewrite_sql($s);
  $r = db_query($s, $node->organization_nid);
  $projects = array();
  while ($project = db_fetch_object($r)) {
    $projects[$project->nid] = $project->title;
  }
  $projects = array(0 => '-') + $projects;
  $form['group2']['project_nid'] = array(
    '#type' => 'select',
    '#title' => t('Project'),
    '#default_value' => $node->project_nid,
    '#options' => $projects,
    '#process' => array('storm_dependent_select_process' => array()),
    '#attributes' => array('onchange' => "stormticket_project_task_tickets(this, 'edit-organization-nid', 'edit-task-nid', 'edit-ticket-nid', true, '-')"),
  );

  $tree = _stormtask_get_tree($node->project_nid);
  $tasks = _stormtask_plain_tree($tree);
  $tasks = array(0 => '-') + $tasks;
  $form['group2']['task_nid'] = array(
    '#type' => 'select',
    '#title' => t('Task'),
    '#default_value' => $node->task_nid,
    '#options' => $tasks,
    '#process' => array('storm_dependent_select_process' => array()),
    '#attributes' => array('onchange' => "stormticket_task_tickets(this, 'edit-organization-nid', 'edit-project-nid', 'edit-ticket-nid', true, '-')"),
  );

  $tickets = array();
  $s = "SELECT n.nid, n.title FROM {node} AS n INNER JOIN {stormticket} AS stt ON stt.vid=n.vid WHERE n.status=1 AND n.type='stormticket'
  AND stt.organization_nid=%d AND stt.project_nid=%d AND stt.task_nid=%d ORDER BY n.title";
  $s = stormticket_access_sql($s);
  $s = db_rewrite_sql($s);
  $r = db_query($s, $node->organization_nid, $node->project_nid, $node->task_nid);
  while ($ticket = db_fetch_object($r)) {
    $tickets[$ticket->nid] = $ticket->title;
  }
  $form['group2']['ticket_nid'] = array(
    '#type' => 'select',
    '#title' => t('Ticket'),
    '#default_value' => $node->ticket_nid,
    '#options' => array(0 => '-') + $tickets,
    '#process' => array('storm_dependent_select_process' => array()),
  );

  $form['group3'] = array(
    '#type' => 'markup',
    '#theme' => 'storm_form_group',
    '#weight' => -48,
  );

  $form['group3']['expensedate'] = array(
    '#type' => 'date',
    '#title' => t('Date'),
    '#default_value' => _storm_gmtimestamp_to_date($node->expensedate),
  );

  $form['group3']['provider_title'] = array(
    '#type' => 'textfield',
    '#title' => t('Provider'),
    '#size' => 50,
    '#default_value' => $node->provider_title,
    '#autocomplete_path' => 'storm/expenses/provider_autocomplete',
  );

  $form['group4'] = array(
    '#type' => 'markup',
    '#theme' => 'storm_form_group',
    '#weight' => -47,
  );

  $form['group4']['amount'] = array(
    '#type' => 'textfield',
    '#title' => t('Amount'),
    '#size' => 15,
    '#default_value' => $node->amount,
  );

  $form['group4']['vat'] = array(
    '#type' => 'textfield',
    '#title' => t('VAT'),
    '#size' => 15,
    '#default_value' => $node->vat,
  );

  $form['group4']['total'] = array(
    '#type' => 'textfield',
    '#title' => t('Total'),
    '#size' => 15,
    '#default_value' => $node->total,
  );

  if ($type->has_body) {
    $form['body'] = array(
      '#type' => 'textarea',
      '#title' => check_plain($type->body_label),
      '#default_value' => $node->body,
      '#required' => FALSE,
      '#weight' => -46,
    );
    $form['body_filter']['format'] = filter_form($node->format);
  }
  return $form;
}

function stormexpense_insert($node) {
  _stormexpense_beforesave($node);

  db_query("INSERT INTO {stormexpense}
            (vid, nid,
            organization_nid, organization_title,
            project_nid, project_title,
            task_nid, task_title, task_stepno,
            ticket_nid, ticket_title,
            provider_nid, provider_title,
            expensedate, amount, vat, total) VALUES
            (%d, %d,
            %d, '%s',
            %d, '%s',
            %d, '%s', '%s',
            %d, '%s',
            %d, '%s',
            %d, %f, %f, %f)",
            $node->vid, $node->nid,
            $node->organization_nid, $node->organization_title,
            $node->project_nid, $node->project_title,
            $node->task_nid, $node->task_title, $node->task_stepno,
            $node->ticket_nid, $node->ticket_title,
            $node->provider_nid, $node->provider_title,
            $node->expensedate, $node->amount, $node->vat, $node->total);
}

function stormexpense_update($node) {
  _stormexpense_beforesave($node);

  db_query("UPDATE {stormexpense} SET
            organization_nid=%d, organization_title='%s',
            project_nid=%d, project_title='%s',
            task_nid=%d, task_title='%s', task_stepno='%s',
            ticket_nid=%d, ticket_title='%s',
            provider_nid=%d, provider_title='%s',
            expensedate=%d, amount=%f, vat=%f, total=%f WHERE vid = %d",
            $node->organization_nid, $node->organization_title,
            $node->project_nid, $node->project_title,
            $node->task_nid, $node->task_title, $node->task_stepno,
            $node->ticket_nid, $node->ticket_title,
            $node->provider_nid, $node->provider_title,
            $node->expensedate, $node->amount, $node->vat, $node->total, $node->vid);
}

function _stormexpense_beforesave(&$node) {
  $node->expensedate = _storm_date_to_gmtimestamp($node->expensedate);

  if (!$node->total) {
    $node->total = $node->amount + $node->vat;
  }

  $s = "SELECT n.title
        FROM {node} AS n INNER JOIN {stormorganization} AS o ON n.nid=o.nid
        WHERE type='stormorganization' AND n.nid=%d";
  $r = db_query($s, $node->organization_nid);
  $o = db_fetch_object($r);
  $node->organization_title = $o->title;

  $s = "SELECT n.title, p.organization_title
        FROM {node} n INNER JOIN {stormproject} p ON n.nid=p.nid
        WHERE type='stormproject' AND n.nid=%d";
  $r = db_query($s, $node->project_nid);
  $p = db_fetch_object($r);
  $node->project_title = $p->title;

  $s = "SELECT title, stepno FROM {node} AS n INNER JOIN {stormtask} AS t ON n.vid=t.vid WHERE n.type='stormtask' AND n.nid=%d";
  $r = db_query($s, $node->task_nid);
  $ta = db_fetch_object($r);
  $node->task_title = $ta->title;
  $node->task_stepno = $ta->stepno;

  $s = "SELECT title FROM {node} AS n INNER JOIN {stormticket} AS t ON n.vid=t.vid WHERE n.type='stormticket' AND n.nid=%d";
  $r = db_query($s, $node->ticket_nid);
  $ti = db_fetch_object($r);
  $node->ticket_title = $ti->title;
}

function stormexpense_delete($node) {
  db_query('DELETE FROM {stormexpense} WHERE nid = %d', $node->nid);
}

function stormexpense_load($node) {
  $additions = db_fetch_object(db_query('SELECT * FROM {stormexpense} WHERE vid = %d', $node->vid));
  return $additions;
}

function stormexpense_view($node, $teaser = FALSE, $page = FALSE, $links = TRUE) {
  require_once(drupal_get_path('module', 'stormexpense') .'/stormexpense.theme.inc');
  return theme('stormexpense_view', $node, $teaser, $page, $links);
}