<?php
// $Id$
function lab_migration_code_approval()
{
    /* get a list of unapproved solutions */
    //$pending_solution_q = db_query("SELECT * FROM {lab_migration_solution} WHERE approval_status = 0");
    $query = db_select('lab_migration_solution');
    $query->fields('lab_migration_solution');
    $query->condition('approval_status', 0);
    $pending_solution_q = $query->execute();
    if (!$pending_solution_q) {
        drupal_set_message(t('There are no pending code approvals.'), 'status');
        return '';
    }
    $pending_solution_rows = array();
    while ($pending_solution_data = $pending_solution_q->fetchObject()) {
        /* get experiment data */
        //$experiment_q = db_query("SELECT * FROM {lab_migration_experiment} WHERE id = %d", $pending_solution_data->experiment_id);
        $query = db_select('lab_migration_experiment');
        $query->fields('lab_migration_experiment');
        $query->condition('id', $pending_solution_data->experiment_id);
        $experiment_q = $query->execute();
        $experiment_data = $experiment_q->fetchObject();
        /* get proposal data */
        // $proposal_q = db_query("SELECT * FROM {lab_migration_proposal} WHERE id = %d", $experiment_data->proposal_id);
        $query = db_select('lab_migration_proposal');
        $query->fields('lab_migration_proposal');
        $query->condition('id', $experiment_data->proposal_id);
        $proposal_q = $query->execute();
        $proposal_data = $proposal_q->fetchObject();
        /* get solution provider details */
        $solution_provider_user_name = '';
        $user_data = user_load($proposal_data->solution_provider_uid);
        if ($user_data) {
            $solution_provider_user_name = $user_data->name;
        } else {
            $solution_provider_user_name = '';
        }
        /* setting table row information */
        $pending_solution_rows[] = array(
            $proposal_data->lab_title,
            $experiment_data->title,
            $proposal_data->name,
            $solution_provider_user_name,
            l('Edit', 'lab-migration/code-approval/approve/' . $pending_solution_data->id)
        );
    }
    /* check if there are any pending solutions */
    if (!$pending_solution_rows) {
        drupal_set_message(t('There are no pending solutions'), 'status');
        return '';
    }
    $header = array(
        'Title of the Lab',
        'Experiment',
        'Proposer',
        'Solution Provider',
        'Actions'
    );
    //$output = theme_table($header, $pending_solution_rows);
    $output = theme('table', array(
        'header' => $header,
        'rows' => $pending_solution_rows
    ));
    return $output;
}
function lab_migration_code_approval_form($form, $form_state)
{
    $solution_id = (int) arg(3);
    /* get solution details */
    //$solution_q = db_query("SELECT * FROM {lab_migration_solution} WHERE id = %d", $solution_id);
    $query = db_select('lab_migration_solution');
    $query->fields('lab_migration_solution');
    $query->condition('id', $solution_id);
    $solution_q = $query->execute();
    $solution_data = $solution_q->fetchObject();
    if (!$solution_data) {
        drupal_set_message(t('Invalid solution selected.'), 'status');
        drupal_goto('lab-migration/code-approval');
    }
    if ($solution_data->approval_status == 1) {
        drupal_set_message(t('This solution has already been approved. Are you sure you want to change the approval status?'), 'error');
    }
    if ($solution_data->approval_status == 2) {
        drupal_set_message(t('This solution has already been dis-approved. Are you sure you want to change the approval status?'), 'error');
    }
    /* get experiment data */
    //xperiment_q = db_query("SELECT * FROM {lab_migration_experiment} WHERE id = %d", $solution_data->experiment_id);
    $query = db_select('lab_migration_experiment');
    $query->fields('lab_migration_experiment');
    $query->condition('id', $solution_data->experiment_id);
    $experiment_q = $query->execute();
    $experiment_data = $experiment_q->fetchObject();
    /* get proposal data */
    //$proposal_q = db_query("SELECT * FROM {lab_migration_proposal} WHERE id = %d", $experiment_data->proposal_id);
    $query = db_select('lab_migration_proposal');
    $query->fields('lab_migration_proposal');
    $query->condition('id', $experiment_data->proposal_id);
    $proposal_q = $query->execute();
    $proposal_data = $proposal_q->fetchObject();
    /* get solution provider details */
    $solution_provider_user_name = '';
    $user_data = user_load($proposal_data->solution_provider_uid);
    if ($user_data) {
        $solution_provider_user_name = $user_data->name;
    } else {
        $solution_provider_user_name = '';
    }
    $form['#tree'] = TRUE;
    $form['lab_title'] = array(
        '#type' => 'item',
        '#markup' => $proposal_data->lab_title,
        '#title' => t('Title of the Lab')
    );
    $form['name'] = array(
        '#type' => 'item',
        '#markup' => $proposal_data->name,
        '#title' => t('Contributor Name')
    );
    $form['experiment']['number'] = array(
        '#type' => 'item',
        '#markup' => $experiment_data->number,
        '#title' => t('Experiment Number')
    );
    $form['experiment']['title'] = array(
        '#type' => 'item',
        '#markup' => $experiment_data->title,
        '#title' => t('Title of the Experiment')
    );
    $form['back_to_list'] = array(
        '#type' => 'item',
        '#markup' => l('Back to Code Approval List', 'lab-migration/code-approval')
    );
    $form['code_number'] = array(
        '#type' => 'item',
        '#markup' => $solution_data->code_number,
        '#title' => t('Code No')
    );
    $form['code_caption'] = array(
        '#type' => 'item',
        '#markup' => $solution_data->caption,
        '#title' => t('Caption')
    );
    /* get solution files */
    $solution_files_html = '';
    //$solution_files_q = db_query("SELECT * FROM {lab_migration_solution_files} WHERE solution_id = %d ORDER BY id ASC", $solution_id);
    $query = db_select('lab_migration_solution_files');
    $query->fields('lab_migration_solution_files');
    $query->condition('solution_id', $solution_id);
    $query->orderBy('id', 'ASC');
    $solution_files_q = $query->execute();
    if ($solution_files_q) {
        while ($solution_files_data = $solution_files_q->fetchObject()) {
            $code_file_type = '';
            switch ($solution_files_data->filetype) {
                case 'S':
                    $code_file_type = 'Source';
                    break;
                case 'R':
                    $code_file_type = 'Result';
                    break;
                case 'X':
                    $code_file_type = 'Xcox';
                    break;
                case 'U':
                    $code_file_type = 'Unknown';
                    break;
                default:
                    $code_file_type = 'Unknown';
                    break;
            }
            $solution_files_html .= l($solution_files_data->filename, 'lab-migration/download/file/' . $solution_files_data->id) . ' (' . $code_file_type . ')' . '<br/>';
        }
    }
    /* get dependencies files */
    //$dependency_q = db_query("SELECT * FROM {lab_migration_solution_dependency} WHERE solution_id = %d ORDER BY id ASC", $solution_id);
    $query = db_select('lab_migration_solution_dependency');
    $query->fields('lab_migration_solution_dependency');
    $query->condition('solution_id', $solution_id);
    $query->orderBy('id', 'ASC');
    $dependency_q = $query->execute();
    while ($dependency_data = $dependency_q->fetchObject()) {
        //$dependency_files_q = db_query("SELECT * FROM {lab_migration_dependency_files} WHERE id = %d", $dependency_data->dependency_id);
        $query = db_select('lab_migration_dependency_files');
        $query->fields('lab_migration_dependency_files');
        $query->condition('id', $dependency_data->dependency_id);
        $dependency_files_q = $query->execute();
        $dependency_files_data = $dependency_files_q->fetchObject();
        $solution_file_type = 'Dependency file';
        $solution_files_html .= l($dependency_files_data->filename, 'lab-migration/download/dependency/' . $dependency_files_data->id) . ' (' . 'Dependency' . ')' . '<br/>';
    }
    $form['solution_files'] = array(
        '#type' => 'item',
        '#markup' => $solution_files_html,
        '#title' => t('Solution')
    );
    $form['approved'] = array(
        '#type' => 'radios',
        '#options' => array(
            '0' => 'Pending',
            '1' => 'Approved',
            '2' => 'Dis-approved (Solution will be deleted)'
        ),
        '#title' => t('Approval'),
        '#default_value' => $solution_data->approval_status
    );
    $form['message'] = array(
        '#type' => 'textarea',
        '#title' => t('Reason for dis-approval'),
        '#attributes' => array(
            'placeholder' => t('Enter reason for dis-approval'),
            'cols' => 50,
            'rows' => 4
        ),
        '#states' => array(
            'visible' => array(
                ':input[name="approved"]' => array(
                    'value' => "2"
                )
            )
        )
    );
    $form['submit'] = array(
        '#type' => 'submit',
        '#value' => t('Submit')
    );
    $form['cancel'] = array(
        '#type' => 'markup',
        '#markup' => l(t('Cancel'), 'lab-migration/code-approval')
    );
    return $form;
}
function lab_migration_code_approval_form_validate($form, &$form_state)
{
    if ($form_state['values']['approved'] == 2) {
        if ($form_state['values']['message'] == "") {
            form_set_error('message', t('Reason for dis-approval could not be empty'));
        }
    }
}
function lab_migration_code_approval_form_submit($form, &$form_state)
{
    global $user;
    $solution_id = (int) arg(3);
    /* get solution details */
    //$solution_q = db_query("SELECT * FROM {lab_migration_solution} WHERE id = %d", $solution_id);
    $query = db_select('lab_migration_solution');
    $query->fields('lab_migration_solution');
    $query->condition('id', $solution_id);
    $solution_q = $query->execute();
    $solution_data = $solution_q->fetchObject();
    if (!$solution_data) {
        drupal_set_message(t('Invalid solution selected.'), 'status');
        drupal_goto('lab-migration/code-approval');
    }
    /* get experiment data */
    //$experiment_q = db_query("SELECT * FROM {lab_migration_experiment} WHERE id = %d", $solution_data->experiment_id);
    $query = db_select('lab_migration_experiment');
    $query->fields('lab_migration_experiment');
    $query->condition('id', $solution_data->experiment_id);
    $experiment_q = $query->execute();
    $experiment_data = $experiment_q->fetchObject();
    /* get proposal data */
    //$proposal_q = db_query("SELECT * FROM {lab_migration_proposal} WHERE id = %d", $experiment_data->proposal_id);
    $query = db_select('lab_migration_proposal');
    $query->fields('lab_migration_proposal');
    $query->condition('id', $experiment_data->proposal_id);
    $proposal_q = $query->execute();
    $proposal_data = $proposal_q->fetchObject();
    $user_data = user_load($proposal_data->uid);
    $solution_prove_user_data = user_load($proposal_data->solution_provider_uid);
    // **** TODO **** : del_lab_pdf($proposal_data->id);
    if ($form_state['values']['approved'] == "0") {
        $query = "UPDATE {lab_migration_solution} SET approval_status = 0, approver_uid = :approver_uid, approval_date = :approval_date WHERE id = :solution_id";
        $args = array(
            ":approver_uid" => $user->uid,
            ":approval_date" => time(),
            ":solution_id" => $solution_id
        );
        db_query($query, $args);
        /* sending email */
        $email_to = $user_data->mail . ', ' . variable_get('lab_migration_emails', '');
        $param['solution_pending']['solution_id'] = $solution_id;
        $param['solution_pending']['user_id'] = $user_data->uid;
        if (!drupal_mail('lab_migration', 'solution_pending', $email_to, language_default(), $param, variable_get('lab_migration_from_email', NULL), TRUE))
            drupal_set_message('Error sending email message.', 'error');
    } else if ($form_state['values']['approved'] == "1") {
        $query = "UPDATE {lab_migration_solution} SET approval_status = 1, approver_uid = :approver_uid, approval_date = :approval_date WHERE id = :solution_id";
        $args = array(
            ":approver_uid" => $user->uid,
            ":approval_date" => time(),
            ":solution_id" => $solution_id
        );
        db_query($query, $args);
        /* sending email */
        $email_to = $user_data->mail . ', ' . variable_get('lab_migration_emails', '');
        $param['solution_approved']['solution_id'] = $solution_id;
        $param['solution_approved']['user_id'] = $user_data->uid;
        if (!drupal_mail('lab_migration', 'solution_approved', $email_to, language_default(), $param, variable_get('lab_migration_from_email', NULL), TRUE))
            drupal_set_message('Error sending email message.', 'error');
    } else if ($form_state['values']['approved'] == "2") {
        if (lab_migration_delete_solution($solution_id)) {
            /* sending email */
            $email_to = $user_data->mail . ', ' . variable_get('lab_migration_emails', '');
            $param['solution_disapproved']['experiment_number'] = $experiment_data->number;
            $param['solution_disapproved']['experiment_title'] = $experiment_data->title;
            $param['solution_disapproved']['solution_number'] = $solution_data->code_number;
            $param['solution_disapproved']['solution_caption'] = $solution_data->caption;
            $param['solution_disapproved']['user_id'] = $user_data->uid;
            $param['solution_disapproved']['message'] = $form_state['values']['message'];
            if (!drupal_mail('lab_migration', 'solution_disapproved', $email_to, language_default(), $param, variable_get('lab_migration_from_email', NULL), TRUE))
                drupal_set_message('Error sending email message.', 'error');
        } else {
            drupal_set_message('Error disapproving and deleting solution. Please contact administrator.', 'error');
        }
    }
    drupal_set_message('Updated successfully.', 'status');
    drupal_goto('lab-migration/code-approval');
}