<?php

require_once(APPPATH . 'third_party/fpdf/fpdf.php');

class PDF extends FPDF
{
    // ----------------------------------------------------------------
    // PROPERTI HEADER
    // ----------------------------------------------------------------
    private $nama;
    private $alamat;
    private $logo;
    private $periodeStr = '';

    // ----------------------------------------------------------------
    // KONFIGURASI TABEL
    // ----------------------------------------------------------------
    // A4 Portrait efektif = 190mm, margin 10+10
    // Kolom: Kode 20 | Nama Akun 90 | Debit 40 | Kredit 40 → TOTAL 190
    private $colWidths = [20, 90, 40, 40];

    // ----------------------------------------------------------------
    // SETTER
    // ----------------------------------------------------------------

    public function setHeaderData($nama, $alamat, $logo = '')
    {
        $this->nama   = $nama;
        $this->alamat = $alamat;
        $this->logo   = $logo;
    }

    public function setInfoLaporan($periodeStr)
    {
        $this->periodeStr = $periodeStr;
    }

    // ----------------------------------------------------------------
    // HEADER HALAMAN
    // ----------------------------------------------------------------

    function Header()
    {
        // Header lengkap hanya di halaman pertama
        if ($this->PageNo() === 1) {
            // Logo (opsional)
            if (!empty($this->logo) && file_exists($this->logo)) {
                $this->Image($this->logo, 10, 6, 18);
                $this->SetXY(31, 10);
            } else {
                $this->SetXY(10, 10);
            }

            // Nama perusahaan
            $this->SetFont('Arial', 'B', 12);
            $this->Cell(0, 6, $this->nama, 0, 1, 'L');

            // Alamat
            $this->SetFont('Arial', '', 9);
            $x = !empty($this->logo) && file_exists($this->logo) ? 31 : 10;
            $this->SetX($x);
            $this->Cell(0, 5, $this->alamat, 0, 1, 'L');

            // Garis pemisah (A4 Portrait: x=10 s/d x=200)
            $this->Ln(2);
            $this->SetLineWidth(0.6);
            $this->Line(10, $this->GetY(), 200, $this->GetY());
            $this->SetLineWidth(0.2);
            $this->Line(10, $this->GetY() + 1, 200, $this->GetY() + 1);
            $this->Ln(5);

            // Judul
            $this->SetFont('Arial', 'B', 13);
            $this->SetTextColor(245, 140, 0);
            $this->Cell(0, 7, 'LAPORAN KEUANGAN', 0, 1, 'C');
            $this->SetTextColor(0, 0, 0);

            // Periode
            $this->SetFont('Arial', '', 10);
            $this->Cell(0, 5, $this->periodeStr, 0, 1, 'C');

            // Tanggal cetak
            $this->SetFont('Arial', '', 9);
            $this->Cell(0, 5, 'Di Cetak Pada : ' . date('d-m-Y') . '  - ' . date('H:i:s'), 0, 1, 'C');

            $this->Ln(4);
        } else {
            // Halaman berikutnya tanpa header laporan
            $this->SetY(10);
        }

        // Header kolom tabel tetap tampil di setiap halaman
        $this->_drawTableHeader();
    }

    // ----------------------------------------------------------------
    // FOOTER HALAMAN
    // ----------------------------------------------------------------

    function Footer()
    {
        $this->SetY(-10);
        $this->SetFont('Arial', 'I', 8);
        $this->Cell(0, 5, 'Halaman ' . $this->PageNo(), 0, 0, 'C');
    }

    // ----------------------------------------------------------------
    // HELPER: posisi X awal — TABEL RATA TENGAH KERTAS
    // ----------------------------------------------------------------

    private function _startX()
    {
        $tableW = array_sum($this->colWidths);
        return ($this->GetPageWidth() - $tableW) / 2;
    }

    // ----------------------------------------------------------------
    // HELPER: Gambar header kolom tabel
    // ----------------------------------------------------------------

    private function _drawTableHeader()
    {
        $startX = $this->_startX();

        $this->SetX($startX);
        $this->SetFillColor(245, 140, 0);
        $this->SetTextColor(255, 255, 255);
        $this->SetFont('Arial', 'B', 9);

        $this->Cell($this->colWidths[0], 8, 'Kode',      1, 0, 'C', true);
        $this->Cell($this->colWidths[1], 8, 'Nama Akun', 1, 0, 'C', true);
        $this->Cell($this->colWidths[2], 8, 'Debit',     1, 0, 'C', true);
        $this->Cell($this->colWidths[3], 8, 'Kredit',    1, 1, 'C', true);

        $this->SetTextColor(0, 0, 0);
    }

    // ----------------------------------------------------------------
    // TABEL NERACA SALDO (mendukung multiline Nama Akun)
    // ----------------------------------------------------------------

    public function NeracaSaldoTable($rows, $totalDebit, $totalKredit)
    {
        $startX = $this->_startX();
        $lineH  = 6;

        $this->SetFont('Arial', '', 9);

        if (empty($rows)) {
            $this->SetX($startX);
            $this->SetFont('Arial', 'B', 10);
            $this->Cell(array_sum($this->colWidths), 8, 'Tidak ada data', 1, 1, 'C');
        } else {
            foreach ($rows as $row) {
                $namaAkun = isset($row->nama_akun) ? $row->nama_akun : (isset($row['nama_akun']) ? $row['nama_akun'] : '');
                $kodeAkun = isset($row->kode_akun) ? $row->kode_akun : (isset($row['kode_akun']) ? $row['kode_akun'] : '');
                $debit    = isset($row->debit) ? (float)$row->debit : (isset($row['debit']) ? (float)$row['debit'] : 0);
                $kredit   = isset($row->kredit) ? (float)$row->kredit : (isset($row['kredit']) ? (float)$row['kredit'] : 0);

                $nbLines = $this->NbLines($this->colWidths[1], $namaAkun);
                $rowH    = max(1, $nbLines) * $lineH;

                if ($this->GetY() + $rowH > 270) {
                    $this->AddPage('P', 'A4');
                }

                $y = $this->GetY();

                $this->SetFont('Arial', '', 9);
                $this->SetXY($startX, $y);
                $this->Cell($this->colWidths[0], $rowH, $kodeAkun, 1, 0, 'C');

                $xNama = $this->GetX();
                $this->MultiCell($this->colWidths[1], $lineH, $namaAkun, 1, 'L');

                $this->SetXY($xNama + $this->colWidths[1], $y);
                $this->Cell($this->colWidths[2], $rowH, $debit  > 0 ? number_format($debit,  0, ',', '.') : '-', 1, 0, 'R');
                $this->Cell($this->colWidths[3], $rowH, $kredit > 0 ? number_format($kredit, 0, ',', '.') : '-', 1, 0, 'R');

                $this->SetXY($startX, $y + $rowH);
            }
        }

        // ---- BARIS TOTAL ----
        if ($this->GetY() + 8 > 270) {
            $this->AddPage('P', 'A4');
        }

        $this->SetX($startX);
        $this->SetFillColor(255, 204, 102);
        $this->SetFont('Arial', 'B', 9);

        $this->Cell($this->colWidths[0] + $this->colWidths[1], 8, 'TOTAL', 1, 0, 'C', true);
        $this->Cell($this->colWidths[2], 8, number_format($totalDebit,  0, ',', '.'), 1, 0, 'R', true);
        $this->Cell($this->colWidths[3], 8, number_format($totalKredit, 0, ',', '.'), 1, 1, 'R', true);
    }

    // ----------------------------------------------------------------
    // RINGKASAN: STATUS BALANCE
    // ----------------------------------------------------------------

    public function NeracaSaldoRingkasan($totalDebit, $totalKredit)
    {
        if ($this->GetY() + 9 > 270) {
            $this->AddPage('P', 'A4');
        }

        $startX = $this->_startX();
        $tableW = array_sum($this->colWidths);
        $labelW = $tableW - $this->colWidths[3];
        $selisih = $totalDebit - $totalKredit;

        $this->Ln(2);
        $this->SetX($startX);
        $this->SetFont('Arial', 'B', 10);

        if (abs($selisih) < 1) {
            $this->SetFillColor(198, 239, 206); // hijau, balance
            $label = 'SELISIH (BALANCE)';
        } else {
            $this->SetFillColor(255, 199, 206); // merah, tidak balance
            $label = 'SELISIH (TIDAK BALANCE)';
        }

        $this->Cell($labelW, 8, $label, 1, 0, 'L', true);
        $this->Cell($this->colWidths[3], 8, number_format($selisih, 0, ',', '.'), 1, 1, 'R', true);
    }

    // ----------------------------------------------------------------
    // TANDA TANGAN
    // ----------------------------------------------------------------

    public function Pembuat($nama, $jabatan = '')
    {
        $startX    = $this->_startX();
        $tableW    = array_sum($this->colWidths);
        $signWidth = 70;
        $signX     = $startX + $tableW - $signWidth; // sejajar sisi kanan tabel

        $this->Ln(3);
        // $this->SetX($signX);
        $this->SetFont('Arial', 'I', 9);
        $this->Cell($signWidth, 6, '*Mengetahui, (Finance Departement)', 0, 1, 'L');
        // $this->Cell($signWidth, 6, $nama, 0, 1, 'L');
        // if (!empty($jabatan)) {
        // $this->Cell($signWidth, 5, '(' . $jabatan . ')', 0, 1, 'L');
        // }
        // $this->Ln(0);
        // $this->SetX($signX);
        // $this->SetFont('Arial', 'B', 10);
        // $this->Cell($signWidth, 6, $nama, 0, 1, 'R');

        // if (!empty($jabatan)) {
        //     $this->SetX($signX);
        //     $this->SetFont('Arial', '', 9);
        //     $this->Cell($signWidth, 5, '(' . $jabatan . ')', 0, 1, 'R');
        // }
    }

    // ----------------------------------------------------------------
    // HELPER: Hitung jumlah baris yang dibutuhkan MultiCell
    // ----------------------------------------------------------------

    private function NbLines($w, $txt)
    {
        $cw   = &$this->CurrentFont['cw'];
        if ($w == 0) {
            $w = $this->w - $this->rMargin - $this->x;
        }
        $wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
        $s    = str_replace("\r", '', $txt);
        $nb   = strlen($s);
        if ($nb > 0 && $s[$nb - 1] == "\n") {
            $nb--;
        }
        $sep = -1;
        $i   = 0;
        $j   = 0;
        $l   = 0;
        $nl  = 1;
        while ($i < $nb) {
            $c = $s[$i];
            if ($c == "\n") {
                $i++;
                $sep = -1;
                $j   = $i;
                $l   = 0;
                $nl++;
                continue;
            }
            if ($c == ' ') {
                $sep = $i;
            }
            $l += isset($cw[ord($c)]) ? $cw[ord($c)] : 600;
            if ($l > $wmax) {
                if ($sep == -1) {
                    if ($i == $j) {
                        $i++;
                    }
                } else {
                    $i = $sep + 1;
                }
                $sep = -1;
                $j   = $i;
                $l   = 0;
                $nl++;
            } else {
                $i++;
            }
        }
        return $nl;
    }
}