Save Data Revisi

public function savedatarevisi_post()
    {
        $username = trim($this->post('username'));
        $id       = $this->post('id');
        $level    = $this->post('level');
        $nama     = $this->post('nama'); // Nama Pengusul/Dosen
        $pesan    = $this->post('pesan');

        if ($username == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Username kosong.',
            ];
        } elseif ($id == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'ID Proposal kosong.',
            ];
        } elseif ($level == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Level tidak ditemukan.',
            ];
        } elseif ($nama == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Nama Dosen kosong.',
            ];
        } elseif ($pesan == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Pesan masih kosong.',
            ];
        } else {
            if (!empty($_FILES['attachment']['name'])) {
                $jam                     = time();
                $config['file_name']     = 'Revisi_' . $username . '_' . $jam . '.jpg';
                $config['upload_path']   = './img/image_revisi/';
                $config['allowed_types'] = 'jpg|png|jpeg|gif';
                $config['overwrite']     = true;
                $config['max_size']      = 0;
                $this->load->library('upload', $config);
                if (!$this->upload->do_upload('attachment')) {
                    $response = [
                        'resp_error' => true,
                        'resp_msg'   => 'File harus type Image.',
                    ];
                } else {
                    // Update Tgl. Revisi Reviewer
                    $dataRevisiRev = array(
                        'tgl_revisi'      => date('Y-m-d'),
                        'reviewer_update' => date('Y-m-d H:i:s'),
                    );

                    $this->db->where('user_username', $username);
                    $this->db->where('propose_id', $id);
                    $this->db->update('lemlit_reviewer', $dataRevisiRev);

                    // Update Tgl. Revisi
                    $dataProposal = array(
                        'propose_revisi' => date('Y-m-d'),
                        'propose_update' => date('Y-m-d H:i:s'),
                    );

                    $this->db->where('propose_id', $id);
                    $this->db->update('lemlit_propose', $dataProposal);

                    // Data Footer
                    $footer     = $this->db->get_where('lemlit_content', array('content_id' => 3))->row();
                    $dataFooter = $footer->content_desc;

                    $dataRevisi = array(
                        'user_username'   => $username,
                        'propose_id'      => $id,
                        'revision_desc'   => $pesan,
                        'revision_post'   => date('Y-m-d H:i:s'),
                        'revision_update' => date('Y-m-d H:i:s'),
                    );

                    $this->db->insert('lemlit_revision', $dataRevisi);
                    $revision_id = $this->db->insert_id(); // ID Revisi Baru

                    $pesansimpan = "Kepada : " . $nama . "<br><br>" . $pesan . "<br>Hormat Kami,<br>Reviewer<br><br>"
                        . $dataFooter;

                    $dataDetail = array(
                        'revision_id'      => $revision_id,
                        'user_username'    => $username,
                        'detail_level'     => 'Admin',
                        'detail_message'   => $pesansimpan,
                        'detail_image'     => $this->upload->file_name,
                        'detail_date_post' => date('Y-m-d H:i:s'),
                    );

                    $this->db->insert('lemlit_revision_detail', $dataDetail);
                }
            } else {
                $footer     = $this->db->get_where('lemlit_content', array('content_id' => 3))->row();
                $dataFooter = $footer->content_desc;

                $dataRevisi = array(
                    'user_username'   => $username,
                    'propose_id'      => $id,
                    'revision_desc'   => $pesan,
                    'revision_post'   => date('Y-m-d H:i:s'),
                    'revision_update' => date('Y-m-d H:i:s'),
                );

                $this->db->insert('lemlit_revision', $dataRevisi);
                $revision_id = $this->db->insert_id(); // ID Revisi Baru

                $pesansimpan = "Kepada : " . $nama . "<br><br>" . $pesan . "<br>Hormat Kami,<br>Reviewer<br><br>"
                    . $dataFooter;

                $dataDetail = array(
                    'revision_id'      => $revision_id,
                    'user_username'    => $username,
                    'detail_level'     => 'Admin',
                    'detail_message'   => $pesansimpan,
                    'detail_date_post' => date('Y-m-d H:i:s'),
                );

                $this->db->insert('lemlit_revision_detail', $dataDetail);
            }

            // Send Notifikasi ke Member
            $dataProposal   = $this->db->get_where('v_proposal', array('propose_id' => $id))->row();
            $username_dosen = $dataProposal->user_username;
            $pesanNotif     = 'Revisi dari Reviewer untuk Proposal Anda, mohon di Cek';
            $dataNotif      = array(
                'user_pengirim'    => $username,
                'user_username'    => $username_dosen,
                'notifikasi_date'  => date('Y-m-d'),
                'notifikasi_desc'  => $pesanNotif,
                'notifikasi_level' => 'Member',
            );

            $this->db->insert('lemlit_notifikasi', $dataNotif);

            $dataDevice = $this->db->get_where('lemlit_users', array('device_id !=' => '', 'user_username' => $username_dosen))->row();
            sendNotification($dataDevice->device_id, $pesanNotif);

            $response = [
                'resp_error' => false,
                'resp_msg'   => 'Simpan Data Revisi Berhasil.',
            ];
        }

        $this->response($response, 200);
    }