<?php if (!defined('BASEPATH')) {
    exit('No direct script access allowed');
}

class Cluster extends CI_Controller
{

    public function __construct()
    {
        parent::__construct();

        header('Cache-Control: no-cache, must-revalidate, max-age=0');
        header('Cache-Control: post-check=0, pre-check=0', false);
        header('Pragma: no-cache');

        $this->load->helper('url');
        $this->load->helper('vic_helper');
        $this->load->helper('my_helper');
        $this->load->helper('vic_convert_helper');
        $this->load->model('m_vic');
        $this->load->model('clustermodel');
        $this->load->model('model');

        date_default_timezone_set('Asia/Jakarta');
        $this->load->helper('url');
        $this->load->helper('vic_helper');
        $this->load->helper('my_helper');
        $this->load->helper('vic_convert_helper');
        $this->load->model('m_vic');
        if ($this->session->userdata('login') != 'login') {
            redirect('auth');
        }
    }

    public function iterasi_kmeans_hasil()
    {
        $tahun = $_GET['tahun'];
        if ($tahun == 1) {
            $t = '';
        } else {
            $t = "where predikat.tahun='$tahun'";
        }
        $data_hasil = $this->clustermodel->selectdata("predikat INNER JOIN alternatif on predikat.alternatif_id = alternatif.alternatif_id  $t");
        $ting = $this->clustermodel->selectdata("hasil where predikat='Sangat Rawan'");
        $sed = $this->clustermodel->selectdata("hasil where predikat='Tidak Rawan'");
        $ren = $this->clustermodel->selectdata("hasil where predikat='Rawan'");

        $data = array(
            'title' => 'iterasi Kmeans hasil',
            'data_hasil' => $data_hasil,
            'tin' => $ting,
            'sed' => $sed,
            'ren' => $ren,
            'user' => $this->m_vic->get_data('admin'),
            'predik' => $this->m_vic->get_data('predikat'),
            'tes' => $this->m_vic->get_data('tes'),
        );

        $data['q'] = $this->db->query('select * from centroid_temp group by iterasi');

        $this->load->view('cluster/iterasi_kmeans_hasil', $data);
    }

    public function index()
    {

        $sesinya = $this->session->userdata('login');

        $this->load->model('model');
        $data = array(
            'title' => '.:: Selamat Datang cluster ::. ',
            'nama' => $sesinya['nama'],
            'petunjuk' => $this->model->getPetunjuk(),
            'wewenang' => $this->model->getWewenang(),
            'titlesistem' => $this->model->getTitle(),
        );

        $this->load->view('cluster/header', $data);
        $this->load->view('cluster/dashboard');
        $this->load->view('cluster/footer');

    }

    public function pilih_cluster()
    {
        $d_tahun = $this->input->post('k_tahun');
        $data_tahun = $this->m_vic->selecttahun('kriteria');
        $data['mam'] = $this->m_vic->SelectMAMAM('kriteria');
        $data['tes'] = $this->m_vic->get_data('tes');
        $data['user'] = $this->m_vic->get_data('admin');
        $data['alternatif'] = $this->m_vic->selectbaru('alternatif');
        $data['kriteria'] = $this->m_vic->selectkritalt('kriteria');
        $data['alter'] = $this->m_vic->get_data('alternatif');
        $data['krit'] = $this->m_vic->get_data('kriteria');
        $data['title'] = "Cluster";
        $data['tahun'] = $d_tahun;
        $data['data_tahun'] = $data_tahun;

        $this->load->view('cluster/pilih_cluster', $data);

    }
    public function normalisasi()
    {

        $data_tahun = $this->m_vic->selecttahun('kriteria');
        $data['mam'] = $this->m_vic->SelectMAMAM('kriteria');
        $data['tes'] = $this->m_vic->get_data('tes');
        $data['user'] = $this->m_vic->get_data('admin');
        $data['alternatif'] = $this->m_vic->selectbaru('alternatif');
        $data['alter'] = $this->m_vic->get_data('alternatif');
        $data['krit'] = $this->m_vic->get_data('kriteria');
        $data['title'] = "Cluster";
        $data['data_tahun'] = $data_tahun;

        $this->load->view('cluster/normalisasi', $data);

    }

    public function awal()
    {

        $data_tahun = $this->m_vic->selecttahun('kriteria');
        $data['mam'] = $this->m_vic->SelectMAMAM('kriteria');
        $data['tes'] = $this->m_vic->get_data('tes');
        $data['user'] = $this->m_vic->get_data('admin');
        $data['alternatif'] = $this->m_vic->selectbaru('alternatif');
        $data['kriteria'] = $this->m_vic->selectkritalt('kriteria');
        $data['alter'] = $this->m_vic->get_data('alternatif');
        $data['krit'] = $this->m_vic->get_data('kriteria');
        $data['title'] = "Cluster";
        $data['data_tahun'] = $data_tahun;

        $this->load->view('cluster/awal', $data);

    }
    public function cluster()
    {
        $tes = $this->input->post('coba');
        if ($tes == 1) {
            $data['n_tahun'] = $this->input->post('n_tahun');
            $data['coba'] = $this->input->post('coba');
            $data['n_c1'] = $this->input->post('n_c1');
            $data['n_c2'] = $this->input->post('n_c2');
            $data['n_c3'] = $this->input->post('n_c3');
        } elseif ($tes == 2) {
            $data['n_tahun'] = $this->input->post('n_tahun');
            $data['coba'] = $this->input->post('coba');
            $data['x1'] = $this->input->post('x1');
            $data['y1'] = $this->input->post('y1');
            $data['z1'] = $this->input->post('z1');

            $data['x2'] = $this->input->post('x2');
            $data['y2'] = $this->input->post('y2');
            $data['z2'] = $this->input->post('z2');

            $data['x3'] = $this->input->post('x3');
            $data['y3'] = $this->input->post('y3');
            $data['z3'] = $this->input->post('z3');
        }

        $data_tahun = $this->m_vic->selecttahun('kriteria');
        $data['mam'] = $this->m_vic->SelectMAMAM('kriteria');
        $data['tes'] = $this->m_vic->get_data('tes');
        $data['user'] = $this->m_vic->get_data('admin');
        $data['alternatif'] = $this->m_vic->selectbaru('alternatif');
        $data['kriteria'] = $this->m_vic->selectkritalt('kriteria');
        $data['alter'] = $this->m_vic->get_data('alternatif');
        $data['krit'] = $this->m_vic->get_data('kriteria');
        $data['title'] = "Cluster";
        $data['data_tahun'] = $data_tahun;

        $this->load->view('cluster/cluster', $data);

    }
    public function detail()
    {

        $data['user'] = $this->m_vic->get_data('admin');
        $data['title'] = "Detail";

        $this->load->view('cluster/detail', $data);

    }
    //proses Normalisasi
    public function normali()
    {
        $d_tahun = $this->input->post('n_tahun');
        $hapus = "DELETE from normalisasi where tahun=$d_tahun";
        $this->db->query($hapus);
        $data_tahun = $this->m_vic->selecttahun('kriteria');
        $mam = $this->db->query('SELECT alternatif_id,c1c,c2c,c3c,tahun,MAX(c1c),MAX(c2c),MAX(c3c),AVG(c1c),AVG(c2c),AVG(c3c),MIN(c1c),MIN(c2c),MIN(c3c) from kriteria where tahun=' . $d_tahun);
        $data['user'] = $this->m_vic->get_data('admin');
        $data['tes'] = $this->m_vic->get_data('tes');
        $table_kriteria = "SELECT * FROM kriteria where tahun=$d_tahun";
        $krit = $this->db->query($table_kriteria);

        $data['title'] = "Cluster";
        $data['data_tahun'] = $data_tahun;

        foreach ($mam->result_array() as $mx) {
            $al_id = $mx['alternatif_id'];
            $bobot = $mx['c2c'];
            $max = $mx['MAX(c2c)'];
            $min = $mx['MIN(c2c)'];

            $nor1 = ($mx['c1c'] - $mx['MIN(c1c)']) / ($mx['MAX(c1c)'] - $mx['MIN(c1c)']);
            $nor2 = ($mx['c2c'] - $mx['MIN(c2c)']) / ($mx['MAX(c2c)'] - $mx['MIN(c2c)']);
            $nor3 = ($mx['c3c'] - $mx['MIN(c3c)']) / ($mx['MAX(c3c)'] - $mx['MIN(c3c)']);
        }
        foreach ($krit->result_array() as $kr_1) {
            $al_tahun = $kr_1['tahun'];
            $bobot2 = $kr_1['c2c'];
            $al_id = $kr_1['alternatif_id'];
            $nor1 = ($kr_1['c1c'] - $mx['MIN(c1c)']) / ($mx['MAX(c1c)'] - $mx['MIN(c1c)']);
            $nor1hasil = round($nor1, 6);
            $nor2 = ($kr_1['c2c'] - $mx['MIN(c2c)']) / ($mx['MAX(c2c)'] - $mx['MIN(c2c)']);
            $nor2hasil = round($nor2, 6);
            $nor3 = ($kr_1['c3c'] - $mx['MIN(c3c)']) / ($mx['MAX(c3c)'] - $mx['MIN(c3c)']);
            $nor3hasil = round($nor3, 6);
            $q = "insert into normalisasi(alternatif_id,c1c,c2c,c3c,tahun) values('" . $al_id . "','" . $nor1hasil . "','" . $nor2hasil . "','" . $nor3hasil . "','" . $al_tahun . "')";
            $this->db->query($q);
        }
        $data['alternatif'] = $this->m_vic->selectbaru('alternatif');
        $this->load->view('cluster/normalisasi', $data);

    }

    public function iterasi_kmeans()
    {
        $dat = $this->input->post('k_tahun');
        //pilihan centroid awal
        $x1 = $this->input->post('x1');
        $y1 = $this->input->post('y1');
        $z1 = $this->input->post('z1');

        $x2 = $this->input->post('x2');
        $y2 = $this->input->post('y2');
        $z2 = $this->input->post('z2');

        $x3 = $this->input->post('x3');
        $y3 = $this->input->post('y3');
        $z3 = $this->input->post('z3');

        if ($dat == 1) {
            $tahun = '';
        } else {
            $tahun = "where tahun='$dat'";
        }
        $data['alternatif'] = $this->m_vic->selectya("$tahun");
        $data['kriteria'] = $this->m_vic->selectkrtitahun("$tahun");
        $data['user'] = $this->m_vic->get_data('admin');
        $data['tes'] = $this->m_vic->get_data('tes');
        $data['mam'] = $this->m_vic->SelectMAM('kriteria where tahun=' . $dat);
        $data['tahun'] = $dat;
        $data['title'] = 'iterasi Kmeans';

        $data['x1'] = $x1;
        $data['x2'] = $x2;
        $data['x3'] = $x3;

        $data['y1'] = $y1;
        $data['y2'] = $y2;
        $data['y3'] = $y3;

        $data['z1'] = $z1;
        $data['z2'] = $z2;
        $data['z3'] = $z3;

        $this->load->view('cluster/iterasi_kmeans', $data);

    }

    public function iterasi_kmeans_lanjut()
    {
        $t = $_GET['tahun'];
        if ($t == 1) {
            $tahun = '';
        } else {
            $tahun = "where tahun='$t'";
        }

        if ($t == 1) {
            $ta = '1';
        } else {
            $ta = $t;
        }

        $data['alternatif'] = $this->m_vic->selectya("$tahun");
        $data['kriteria'] = $this->m_vic->selectkrtitahun("$tahun");
        $data['user'] = $this->m_vic->get_data('admin');
        $data['tes'] = $this->m_vic->get_data('tes');
        $hasil_cen = $this->m_vic->get_data('hasil_centroid');
        $data['predikat'] = $this->m_vic->get_data('predikat');
        $data['title'] = 'iterasi kmeans lanjut';

        $id = "";
        $id = $this->db->query('select max(nomor) as m from hasil_centroid');
        foreach ($id->result() as $i) {
            $id = $i->m;
        }
        $this->db->where('nomor', $id);
        $data['centroid'] = $this->db->get('hasil_centroid');
        $data['id'] = $id + 1;

        $it = "";
        $it = $this->db->query('select max(iterasi) as it from centroid_temp');
        foreach ($it->result() as $i) {
            $it = $i->it;
        }
        $data['no_k'] = $it;
        $it_temp = $it - 1;
        $this->db->where('iterasi', $it_temp);
        $it_sebelum = $this->db->get('centroid_temp');
        $c1_sebelum = array();
        $c2_sebelum = array();
        $c2_sebelum = array();
        $no = 0;
        foreach ($it_sebelum->result() as $it_prev) {
            $c1_sebelum[$no] = $it_prev->c1;
            $c2_sebelum[$no] = $it_prev->c2;
            $c3_sebelum[$no] = $it_prev->c3;
            $no++;
        }

        $this->db->where('iterasi', $it);
        $it_sesesudah = $this->db->get('centroid_temp');
        $c1_sesesudah = array();
        $c2_sesesudah = array();
        $c2_sesesudah = array();
        $no = 0;
        foreach ($it_sesesudah->result() as $it_next) {
            $c1_sesesudah[$no] = $it_next->c1;
            $c2_sesesudah[$no] = $it_next->c2;
            $c3_sesesudah[$no] = $it_next->c3;
            $no++;
        }


        if ($c1_sebelum == $c1_sesesudah && $c2_sebelum && $c2_sesesudah && $c2_sebelum == $c2_sesesudah) {
            ?>
            <script>
                alert("Proses iterasi berakhir pada tahap ke-<?php echo $it; ?>");
            </script>
            <?php

            echo "<meta http-equiv='refresh' content='0; url=" . base_url() . "cluster/iterasi_kmeans_hasil?tahun=$ta'>";
        } else {
            $delete = "delete from predikat where tahun='$ta'";
            $this->db->query($delete);
            $this->load->view('cluster/iterasi_kmeans_lanjut', $data);

        }
    }

    function logout()
    {
        $this->session->sess_destroy();
        redirect('');
    }

}