<?php

namespace App\Controllers;
use App\Models\PasienModel;

class Pasien extends BaseController
{
   public function __construct()
    {
    $session = session();

    // Jika belum login
    if (!$session->get('logged_in')) {
        header('Location: ' . base_url('login'));
        exit;
    }

    $timeout = 600;

    if (
        $session->get('last_activity') &&
        (time() - $session->get('last_activity')) > $timeout
    ) {
        $session->remove([
            'id',
            'nama',
            'username',
            'role',
            'logged_in',
            'last_activity'
        ]);

        $session->setFlashdata(
            'error',
            'Sesi Anda telah berakhir karena tidak ada aktivitas selama 10 menit.'
        );

        header('Location: ' . base_url('login'));
        exit;
    }

    $session->set('last_activity', time());
    }

    public function login()
    {
    if (session()->get('logged_in')) {
        return redirect()->to('/');
    }

    return view('auth/login');
    }

    public function dashboard()
    {
    $db = \Config\Database::connect();
    $builder = $db->table('register_ambulans');

    $data = [
    'total' => (clone $builder)
        ->where('status !=', 'batal')
        ->countAllResults(),

    'emergency' => (clone $builder)
        ->where('order_type', 'True Emergency')
        ->where('status !=', 'batal')
        ->countAllResults(),

    'non' => (clone $builder)
        ->where('order_type', 'Non Emergency')
        ->where('status !=', 'batal')
        ->countAllResults(),

    'pending' => (clone $builder)
        ->where('order_type', 'Pending Order')
        ->where('status !=', 'batal')
        ->countAllResults(),
    ];

    return view('dashboard', $data);
    }

   public function input($id = null)
{
    $db = \Config\Database::connect();

    $edit_mode = false;
    $pasien = [];
    $order = [];
    $register = null;

    // ================= EDIT MODE =================
    if (!empty($id)) {

        $edit_mode = true;

        $pasien = $db->table('register_ambulans r')
            ->select('
                r.id,
                r.rm,
                r.register,
                r.order_type,
                r.status,
                r.fase,
                r.nama_penelpon,
                r.no_penelpon,

                p.atribut,
                p.nama,
                p.alamat,
                p.gender,
                p.tgl_lahir
            ')
            ->join('pasien p', 'p.rm = r.rm', 'left')
            ->where('r.id', $id)
            ->get()
            ->getRowArray();

        // ❌ kalau data tidak ada → redirect
        if (!$pasien) {
            return redirect()->to('/pasien/aktif')
                ->with('error', 'Data tidak ditemukan');
        }

        // ================= ORDER =================
        $order = $db->table('pasien_order o')
        ->select('o.*, pg.nama as petugas_nama, ra.order_type')
        ->join('pegawai pg', 'pg.id = o.petugas_id', 'left')
        ->join('register_ambulans ra', 'ra.id = o.register_id', 'left')
        ->where('o.register_id', $id)
        ->get()
        ->getRowArray();

        // fallback biar view aman
        if (!$order) {
            $order = [];
        }

        // register ambil dari DB
        $register = $pasien['register'] ?? null;

    } else {

        // ================= INPUT BARU =================
        $register = $this->generateRegister();

        // kosongkan biar view tidak error
        $pasien = [];
        $order = [];
    }

    return view('input', [
        'pasien'    => $pasien,
        'order'     => $order,
        'edit_mode' => $edit_mode,
        'id'        => $id,
        'register'  => $register
    ]);
}

    public function aktif()
{
    $db = \Config\Database::connect();

    $builder = $db->table('register_ambulans r');

    $builder->select('
        r.id,
        r.register,
        r.rm,
        r.order_type,
        r.status,
        r.fase,
        r.prioritas,
        r.created_at,
        r.nama_penelpon,
        r.no_penelpon,
        p.nama,
        p.gender,
        p.alamat
    ');

    $builder->join('pasien p', 'p.rm = r.rm', 'left');

    $builder->where('r.status !=', 'batal');

    $builder->orderBy('r.id', 'DESC');

    $data['pasien'] = $builder->get()->getResultArray();

    return view('pasien_aktif', $data);
}

    public function next($id)
    {
    $db = \Config\Database::connect();
    $builder = $db->table('register_ambulans');

    $p = $builder->where('id', $id)->get()->getRowArray();

    if (!$p) return redirect()->back();

    $fase = $p['fase'] ?? 1;

    if ($fase < 6) {
        $fase++;
    }

    $status = ($fase == 6) ? 'Selesai' : 'Diproses';

    $builder->where('id', $id)->update([
        'fase' => $fase,
        'status' => $status
    ]);

    return redirect()->back();
    }

    public function create()
    {
        return view('pasien/create');
    }

    private function generateRegister()
    {
    $today = date('ymd');

    $db = \Config\Database::connect();
    $builder = $db->table('register_ambulans');

    $builder->like('register', "AMB-$today", 'after');
    $count = $builder->countAllResults();

    $urutan = str_pad($count + 1, 3, '0', STR_PAD_LEFT);

    return "AMB-$today-$urutan";
    }

    private function hitungUmur($tglLahir)
    {
        if (empty($tglLahir) || $tglLahir == '0000-00-00') return '-';

        try {
            $birth = new \DateTime($tglLahir);
            $today = new \DateTime();

            $diff = $today->diff($birth);

            return sprintf(
                '%d tahun %d bulan %d hari',
                $diff->y,
                $diff->m,
                $diff->d
            );
        } catch (\Exception $e) {
            return '-';
        }
    }

    public function simpan()
    {
    $db = \Config\Database::connect();

    // VALIDASI 
    $rules = [
        'rm'            => 'required|numeric',
        'nama'          => 'required',
        'gender'        => 'required|in_list[Laki-laki,Perempuan]',
        'tanggal_lahir' => 'required|valid_date',
        'alamat'        => 'required',

        'nama_penelpon' => 'required',
        'no_penelpon'   => 'required|numeric',

        'order_type'    => 'required',
        'kategori'      => 'required',

        'kesadaran'     => 'required',
        'suhu'          => 'required',

        'persetujuan'   => 'required|in_list[setuju,tidak,menunggu]',
        'tujuan'        => 'required',

        'petugas_id'    => 'required'
    ];

    // VALIDASI CONDITIONAL 
    if ($this->request->getPost('status_nyeri') === 'ya') {
        $rules['lokasi_nyeri'] = 'required';
    }

    if ($this->request->getPost('bahaya') === 'ada') {
        $rules['bahaya_detail'] = 'required';
    }

    if ($this->request->getPost('posisi_pasien') === 'lainnya') {
        $rules['posisi_lainnya'] = 'required';
    }

    // EKSEKUSI VALIDASI
    if (!$this->validate($rules)) {
    return redirect()->back()
        ->withInput()
        ->with('errors', $this->validator->getErrors());
    }
    // ================= AMBIL INPUT =================
    $rm = $this->request->getPost('rm');

    // normalisasi RM → hanya angka
    if (!empty($rm)) {
        $rm = preg_replace('/[^0-9]/', '', $rm);
    } else {
        $rm = null;
    }

    // ================= DATA PASIEN =================
    $dataPasien = [
        'atribut'   => $this->request->getPost('panggilan_depan') ?? '',
        'nama'      => $this->request->getPost('nama') ?? '',
        'gender'    => $this->request->getPost('gender') ?? '',
        'alamat'    => $this->request->getPost('alamat') ?? '',
        'tgl_lahir' => $this->request->getPost('tanggal_lahir') ?? '',
    ];

    // ================= CEK PASIEN =================
    if ($rm) {

        $pasien = $db->table('pasien')
            ->where('rm', $rm)
            ->get()
            ->getRowArray();

        if ($pasien) {
            // ✅ UPDATE pasien lama
            $db->table('pasien')
                ->where('rm', $rm)
                ->update($dataPasien);
        } else {
            // ✅ INSERT pasien baru
            $dataPasien['rm'] = $rm;
            $db->table('pasien')->insert($dataPasien);
        }
    }

    // ================= REGISTER =================
    $db->table('register_ambulans')->insert([
        'rm'         => $rm,
        'register'   => $this->generateRegister(),
        'order_type' => $this->request->getPost('order_type'),
        'fase'       => 1,
        'status'     => 'Predispatch',

        // penelpon
        'nama_penelpon' => $this->request->getPost('nama_penelpon') ?? '',
        'no_penelpon'   => $this->request->getPost('no_penelpon') ?? '',
    ]);

    // ambil id (register_id saat edit)
    $id = $this->request->getPost('id');

    $petugasId = $this->request->getPost('petugas_id');

    if (empty($petugasId)) {
        $petugasId = $this->request->getPost('petugas_id_old');
    }
    // ================= DATA ORDER =================
    $dataOrder = [
        'keluhan_utama' => $this->request->getPost('keluhan_utama') ?? '',
        'kesadaran'     => $this->request->getPost('kesadaran') ?? '',
        'kategori'      => $this->request->getPost('kategori') ?? '',

        'pernafasan' => json_encode([
            'sesak' => $this->request->getPost('sesak') ?? '',
            'batuk' => $this->request->getPost('batuk') ?? '',
        ]),

        'posisi' => json_encode([
            'lokasi'  => $this->request->getPost('posisi_pasien') ?? '',
            'lantai'  => $this->request->getPost('posisi_lantai') ?? '',
            'lainnya' => $this->request->getPost('posisi_lainnya') ?? ''
        ]),

        'keterbatasan' => $this->request->getPost('gerak') ?? '',

        'nyeri' => json_encode([
            'status' => $this->request->getPost('status_nyeri') ?? '',
            'lokasi' => $this->request->getPost('lokasi_nyeri') ?? [],
            'lain'   => $this->request->getPost('nyeri_lain') ?? '',
        ]),

        'suhu' => $this->request->getPost('suhu') ?? '',

        'bahaya' => json_encode([
            'status' => $this->request->getPost('bahaya') ?? '',
            'detail' => $this->request->getPost('bahaya_detail') ?? ''
        ]),

        'berat_badan'   => $this->request->getPost('berat_badan') ?? '',
        'tujuan'        => $this->request->getPost('tujuan') ?? '',
        'tujuan_detail' => $this->request->getPost('tujuan_detail') ?? '',
        'informasi_lain'=> $this->request->getPost('informasi_lain') ?? '',
        'kie_transfer' => $this->request->getPost('kie_transfer') ?? '',

        'persetujuan' => $this->request->getPost('persetujuan') ?? 'menunggu',
        'biaya'       => $this->request->getPost('biaya') ?? 0,
        'validasi'    => $this->request->getPost('validasi') ?? '',
        'petugas_id'  => $petugasId,
        ];


    // ================= INSERT / UPDATE =================
    if ($id) {

        // ✅ EDIT MODE → UPDATE
        $db->table('pasien_order')
            ->where('register_id', $id)
            ->update($dataOrder);

    } else {

        // ✅ INPUT BARU → INSERT
        $registerId = $db->insertID(); // dari register_ambulans

        $dataOrder['register_id'] = $registerId;

        $db->table('pasien_order')->insert($dataOrder);
    }

    return redirect()->to('/pasien/aktif');
    }

    public function cekRM()
    {
    $model = new \App\Models\PasienModel();

    $rm = $this->request->getPost('rm');

    $data = $model->where('rm', $rm)->first();

    if ($data) {
        return $this->response->setJSON([
            'status' => 'found',
            'data' => $data
        ]);
    }

    return $this->response->setJSON([
        'status' => 'not_found'
    ]);
    }

    public function linkRM()
    {
    $db = \Config\Database::connect();

    $registerId = $this->request->getPost('register_id');
    $rm = $this->request->getPost('rm');

    $db->table('register_ambulans')
        ->where('id', $registerId)
        ->update(['rm' => $rm]);

    return $this->response->setJSON([
        'status' => 'success'
    ]);
    }

    public function search()
    {
    $q = $this->request->getPost('q');

    $db = \Config\Database::connect();

    $data = $db->table('pasien')
        ->like('rm', $q)
        ->orLike('nama', $q)
        ->limit(10)
        ->get()
        ->getResultArray();

    return $this->response->setJSON([
        'data' => $data
    ]);
    }
    
   public function predispatch($id)
    {
    $db = \Config\Database::connect();

    // ================= ROLE + MODE EDIT =================
    $role = session()->get('role');
    $edit_mode = $this->request->getGet('edit') == '1';

    // ================= REGISTER + PASIEN =================
    $pasien = $db->table('register_ambulans r')
    ->select('
        r.*,
        COALESCE(NULLIF(p.atribut, ""), r.atribut) as atribut,
        COALESCE(NULLIF(p.nama, ""), r.nama_pasien) as nama,
        COALESCE(NULLIF(p.alamat, ""), r.alamat) as alamat,
        COALESCE(NULLIF(p.gender, ""), r.gender) as gender,
        COALESCE(NULLIF(p.tgl_lahir, ""), r.tgl_lahir) as tgl_lahir
    ')
    ->join('pasien p', 'p.rm = r.rm', 'left')
    ->where('r.id', $id)
    ->get()
    ->getRowArray();

    if (!$pasien) {
        return redirect()->to('/pasien/aktif');
    }

    // ================= UMUR =================
    $pasien['umur'] = $this->hitungUmur($pasien['tgl_lahir'] ?? null);

    // ================= ORDER =================
    $order = $db->table('pasien_order o')
        ->select('o.*, pg.nama as petugas_nama')
        ->join('pegawai pg', 'pg.id = o.petugas_id', 'left')
        ->where('o.register_id', $id)
        ->get()
        ->getRowArray();

    // fallback aman
    if (!$order) {
        $order = [];
    }

    // ================= VIEW SWITCH =================
    if ($edit_mode) {
        return view('input', [
            'pasien'    => $pasien,
            'order'     => $order,
            'role'      => $role,
            'edit_mode' => true,
            'register'  => $pasien['register']
        ]);
    }

    return view('predispatch', [
        'pasien'    => $pasien,
        'order'     => $order,
        'role'      => $role,
        'edit_mode' => false
    ]);
    }

    public function list()
    {
        $db = \Config\Database::connect();

        // 🔽 DEFAULT BULAN SEKARANG
        $periode = $this->request->getGet('periode') ?? date('Y-m');
        $bulan = date('m', strtotime($periode));
        $tahun = date('Y', strtotime($periode));

        // ================= LIST DATA =================
        $builder = $db->table('register_ambulans r');

        $builder->select('
            r.id,
            r.register,
            r.rm,
            r.order_type,
            r.fase,
            r.status,
            r.alasan_batal,
            r.created_at,
            p.nama,
            p.atribut,
            p.gender,
            p.alamat,
            p.tgl_lahir,
            o.tujuan,
            pg.nama AS petugas_predispatch
        ');

        $builder->join(
            'pasien_order o',
            'o.register_id = r.id',
            'left'
        );

        $builder->join(
            'pegawai pg',
            'pg.id = o.petugas_id',
            'left'
        );

        $builder->join(
            'pasien p',
            'p.rm = r.rm',
            'left'
        );

        // filter bulan
        $builder->where('MONTH(r.created_at)', $bulan);
        $builder->where('YEAR(r.created_at)', $tahun);

        $builder->orderBy('r.created_at', 'DESC');

        $data['pasien'] = $builder->get()->getResultArray();

        // ================= REKAP =================

        // TOTAL
        $data['total'] = $db->table('register_ambulans r')
            ->where('MONTH(r.created_at)', $bulan)
            ->where('YEAR(r.created_at)', $tahun)
            ->countAllResults();

        // ✅ TERLAYANI (fase = 6)
        $data['terlayani'] = $db->table('register_ambulans r')
            ->where('MONTH(r.created_at)', $bulan)
            ->where('YEAR(r.created_at)', $tahun)
            ->where('r.fase', 6)
            ->countAllResults();

        // ⏳ DALAM PELAYANAN
        $data['dalam_pelayanan'] = $db->table('register_ambulans r')
            ->where('MONTH(r.created_at)', $bulan)
            ->where('YEAR(r.created_at)', $tahun)
            ->where('r.fase <', 6)
            ->where('r.status !=', 'batal')
            ->countAllResults();

        // ❌ BATAL
        $data['batal'] = $db->table('register_ambulans r')
            ->where('MONTH(r.created_at)', $bulan)
            ->where('YEAR(r.created_at)', $tahun)
            ->where('r.status', 'batal')
            ->countAllResults();

        $data['periode'] = $periode;

        return view('pasien/list', $data);
    }
    
    public function edit($id)
    {
    $db = \Config\Database::connect();

    // ambil data register + pasien
    $data['pasien'] = $db->table('register_ambulans r')
        ->select('r.*, p.nama, p.atribut, p.gender, p.alamat, p.tgl_lahir')
        ->join('pasien p', 'p.rm = r.rm', 'left')
        ->where('r.id', $id)
        ->get()
        ->getRowArray();

    // ambil order
    $data['order'] = $db->table('pasien_order')
        ->where('register_id', $id)
        ->get()
        ->getRowArray();

    return view('pasien/edit', $data);
    }

    public function update($id)
{
    $db = \Config\Database::connect();
    $role = session()->get('role');

    // ================= REGISTER (TIDAK BOLEH DIUBAH) =================
    $register = $db->table('register_ambulans')
        ->where('id', $id)
        ->get()
        ->getRowArray();

    $rm = $this->request->getPost('rm');

    // ================= PASIEN =================
    $dataPasien = [
        'atribut' => $this->request->getPost('panggilan_depan'),
        'nama'      => $this->request->getPost('nama'),
        'gender'    => $this->request->getPost('gender'),
        'alamat'    => $this->request->getPost('alamat'),
        'tgl_lahir' => $this->request->getPost('tanggal_lahir'),
    ];

    // RM HANYA ADMIN
    if ($role === 'admin') {
        $db->table('register_ambulans')
            ->where('id', $id)
            ->update(['rm' => $rm]);
    }

    // update pasien by RM lama
    $db->table('pasien')
        ->where('rm', $register['rm'])
        ->update($dataPasien);

    // ================= UPDATE ORDER TYPE =================
    $db->table('register_ambulans')
        ->where('id', $id)
        ->update([
            'order_type' => $this->request->getPost('order_type')
        ]);
   // ================= ORDER (SEMUA BOLEH DIEDIT) =================
        $statusNyeri = $this->request->getPost('status_nyeri') ?? '';
        $lokasiNyeri = $this->request->getPost('lokasi_nyeri') ?? [];
        $nyeriLain   = $this->request->getPost('nyeri_lain') ?? '';
        $petugasId = $this->request->getPost('petugas_id');
        if (empty($petugasId)) {
            $petugasId = $this->request->getPost('petugas_id_old');
        }
        $dataOrder = [
            'keluhan_utama' => $this->request->getPost('keluhan_utama'),
            'kesadaran'     => $this->request->getPost('kesadaran'),

            'pernafasan' => json_encode([
                'sesak' => $this->request->getPost('sesak') ?? '',
                'batuk' => $this->request->getPost('batuk') ?? '',
            ], JSON_UNESCAPED_UNICODE),

            'posisi' => json_encode([
                'lokasi'  => $this->request->getPost('posisi_pasien') ?? '',
                'lantai'  => $this->request->getPost('posisi_lantai') ?? '',
                'lainnya' => $this->request->getPost('posisi_lainnya') ?? '',
            ]),

            'keterbatasan' => $this->request->getPost('gerak') ?? '',

            'nyeri' => json_encode([
                'status' => $statusNyeri,
                'lokasi' => is_array($lokasiNyeri) ? $lokasiNyeri : [$lokasiNyeri],
                'lain'   => $nyeriLain ?? ''
            ], JSON_UNESCAPED_UNICODE),

            'suhu' => $this->request->getPost('suhu'),

            'bahaya' => json_encode([
                'status' => $this->request->getPost('bahaya') ?? '',
                'detail' => $this->request->getPost('bahaya_detail') ?? '',
            ], JSON_UNESCAPED_UNICODE),

            'berat_badan' => $this->request->getPost('berat_badan'),

            'tujuan'        => $this->request->getPost('tujuan'),
            'tujuan_detail' => $this->request->getPost('tujuan_detail'),
            'persetujuan'   => $this->request->getPost('persetujuan'),
            'biaya'         => $this->request->getPost('biaya'),
            'informasi_lain' => $this->request->getPost('informasi_lain') ?? '',
            'kie_transfer' => $this->request->getPost('kie_transfer') ?? '',
            'validasi'      => $this->request->getPost('validasi'),
            'petugas_id'    => $petugasId,
        ];
    $db->table('pasien_order')
        ->where('register_id', $id)
        ->update($dataOrder);

    return redirect()->to('/pasien/predispatch/' . $id);
    }

    public function index()
    {
        $db = \Config\Database::connect();
        $builder = $db->table('pasien');

        $periode = $this->request->getGet('periode');

        if ($periode) {
            $bulan = date('m', strtotime($periode));
            $tahun = date('Y', strtotime($periode));

            $builder->where('MONTH(tgl_masuk)', $bulan);
            $builder->where('YEAR(tgl_masuk)', $tahun);
        }

        // ambil data
        $data['pasien'] = $builder->get()->getResultArray();

        // kirim ke view
        return view('list', $data);
    }
    
   public function detail($id)
    {
        $db = \Config\Database::connect();

        $pasien = $db->table('register_ambulans r')
            ->select('
                r.*,
                p.nama,
                p.alamat,
                p.gender,
                p.tgl_lahir
            ')
            ->join('pasien p', 'p.rm = r.rm', 'left')
            ->where('r.id', $id)
            ->get()
            ->getRowArray();

        if (!$pasien) {
            return redirect()->to('/pasien/list');
        }

        return view('pasien/detail_riwayat', [
            'p' => $pasien
        ]);
    }

    public function hapus($id)
    {
        $db = \Config\Database::connect();

        // =========================
        // VALIDASI PASSWORD
        // =========================
        $password = $this->request->getPost('admin_password');

        if ($password !== 'admin119') {
            return redirect()->back()
                ->with('error', 'Password admin salah');
        }

        // =========================
        // CEK DATA
        // =========================
        $cek = $db->table('register_ambulans')
            ->where('id', $id)
            ->get()
            ->getRowArray();

        if (!$cek) {
            return redirect()->back()
                ->with('error', 'Data tidak ditemukan');
        }

        // =========================
        // HAPUS RELASI
        // =========================
        $db->table('pasien_order')
            ->where('register_id', $id)
            ->delete();

        // =========================
        // HAPUS DATA
        // =========================
        $db->table('register_ambulans')
            ->where('id', $id)
            ->delete();

        return redirect()->to('/pasien/list')
            ->with('success', 'Data berhasil dihapus');
    }

    public function batal()
{
    $data = $this->request->getJSON(true);

    $id = $data['id'] ?? null;
    $alasan = $data['alasan'] ?? '';

    if (!$id) {
        return $this->response->setJSON([
            'status' => 'error',
            'message' => 'ID tidak ditemukan'
        ]);
    }

    $db = \Config\Database::connect();

    $db->table('register_ambulans')
        ->where('id', $id)
        ->update([
            'status' => 'batal',
            'fase'   => 0,              // 🔥 WAJIB biar stop total
            'alasan_batal' => $alasan
        ]);

    return $this->response->setJSON([
        'status' => 'ok'
    ]);
}

    public function aktifkan()
    {
        $data = $this->request->getJSON(true);

        $id = $data['id'] ?? null;

        if (!$id) {
            return $this->response->setJSON([
                'status' => 'error'
            ]);
        }

        $db = \Config\Database::connect();

        $db->table('register_ambulans')
            ->where('id', $id)
            ->update([
                'status' => 'Predispatch', 
                'fase'   => 1,              
                'alasan_batal' => null
            ]);

        return $this->response->setJSON([
            'status' => 'ok'
        ]);
    }
}