<?php

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

class PDF_BarangBawaan extends FPDF
{
    private $noFaktur;
    private $tanggal;
    private $teknisi;

    private $colWidths = [8, 18, 27, 44, 26, 10, 57];

    public function __construct($orientation = 'L', $unit = 'mm', $size = 'A5')
    {
        parent::__construct($orientation, $unit, $size);
        $this->SetDisplayMode('fullpage');
    }

    function SetMargins($left, $top, $right = null)
    {
        parent::SetMargins(10, $top, 10);
    }

    public function setFormInfo($noFaktur, $tanggal, $teknisi)
    {
        $this->noFaktur = $noFaktur;
        $this->tanggal = $tanggal;
        $this->teknisi = $teknisi;
    }

    function Header()
    {
        $this->SetFont('Arial', 'B', 11);
        $this->SetTextColor(245, 140, 0);
        $this->Cell(0, 6, 'FORM BARANG BAWAAN TEKNISI', 0, 1, 'L');
        $this->SetTextColor(0, 0, 0);
        $this->Ln(2);

        $this->SetFont('Arial', '', 8);
        $this->Cell(0, 5, 'Tanggal : ' . $this->tanggal . '                                                              Teknisi : ' . $this->teknisi . '                                          No. Faktur : ' . $this->noFaktur, 0, 1, 'C');
        $this->Ln(2);
        $this->_drawTableHeader();
    }

    function Footer()
    {
        $this->SetY(-8);
        $this->SetFont('Arial', 'I', 7);
        $this->Cell(0, 4, 'Hal ' . $this->PageNo(), 0, 0, 'C');
    }

    private function _drawTableHeader()
    {
        $startX = $this->lMargin;
        $this->SetX($startX);
        $this->SetFillColor(245, 140, 0);
        $this->SetTextColor(255, 255, 255);
        $this->SetFont('Arial', 'B', 7);

        $headers = ['No', 'Tanggal', 'Barcode', 'Nama Barang', 'Serial Number', 'Jumlah', 'Keterangan'];
        foreach ($headers as $i => $h) {
            $this->Cell($this->colWidths[$i], 7, $h, 1, 0, 'C', true);
        }
        $this->Ln();

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

    public function BarangBawaanTable($items)
    {
        $this->SetFont('Arial', '', 7);
        $lineH = 5.5;
        $minRowH = 8;
        $no = 1;

        $colsMultiCell = [false, false, true, true, true, false, true];
        $cellAligns = ['C', 'C', 'L', 'L', 'L', 'C', 'L'];

        foreach ($items as $item) {
            $keterangan = isset($item->keterangan) ? $item->keterangan : '';
            $namaBarang = $item->nama_barang ?? '-';
            $serial = $item->serial_number ?? '-';
            $barcode = $item->barcode ?? '-';
            $jumlah = isset($item->qty_sisa) ? (int)$item->qty_sisa : 1;

            $cellValues = [
                (string)$no,
                $item->tanggal ?? '-',
                $barcode,
                $namaBarang,
                $serial,
                (string)$jumlah,
                $keterangan
            ];

            $maxLines = 1;
            foreach ($cellValues as $i => $val) {
                if ($colsMultiCell[$i]) {
                    $lines = $this->NbLines($this->colWidths[$i], $val);
                    if ($lines > $maxLines) {
                        $maxLines = $lines;
                    }
                }
            }

            $rowH = max($minRowH, $maxLines * $lineH);

            if ($this->GetY() + $rowH > $this->PageBreakTrigger) {
                $this->AddPage();
            }

            $startX = $this->lMargin;
            $startY = $this->GetY();

            $currentX = $startX;
            foreach ($this->colWidths as $i => $w) {
                $this->Rect($currentX, $startY, $w, $rowH);
                $currentX += $w;
            }

            $currentX = $startX;
            foreach ($cellValues as $i => $val) {
                $this->SetXY($currentX, $startY);
                if ($colsMultiCell[$i]) {
                    $contentH = $maxLines * $lineH;
                    $offsetY = ($rowH - $contentH) / 2;
                    $this->SetXY($currentX, $startY + $offsetY);
                    $this->MultiCell($this->colWidths[$i], $lineH, $val, 0, $cellAligns[$i]);
                } else {
                    $this->Cell($this->colWidths[$i], $rowH, $val, 0, 0, $cellAligns[$i]);
                }
                $currentX += $this->colWidths[$i];
            }

            $this->SetXY($startX, $startY + $rowH);
            $no++;
        }
    }

    public function SignatureArea()
    {
        $this->Ln(6);

        $sigW = 56;
        $gapW = 11;
        $blockW = 3 * $sigW + 2 * $gapW;
        $startX = $this->lMargin + ($this->w - $this->lMargin - $this->rMargin - $blockW) / 2;

        $signatures = [
            ['title' => 'Admin Gudang', 'name' => 'Gono Soewisto'],
            ['title' => 'Leader Teknisi', 'name' => 'Chandra Nursani'],
            ['title' => 'Mengetahui', 'name' => 'Tito Ngudiana'],
        ];

        $sigY = $this->GetY();

        foreach ($signatures as $i => $sig) {
            $x = $startX + $i * ($sigW + $gapW);

            $this->SetXY($x, $sigY);
            $this->SetFont('Arial', '', 8);
            $this->Cell($sigW, 5, $sig['title'], 0, 1, 'C');

            $this->SetX($x);
            $this->Ln(10);

            $this->SetX($x);
            $this->SetFont('Arial', 'U', 8);
            $this->Cell($sigW, 5, '                              ', 0, 1, 'C');

            $this->SetX($x);
            $this->SetFont('Arial', 'I', 7);
            $this->Cell($sigW, 4, $sig['name'], 0, 1, 'C');
        }

        $this->SetY($sigY + 5 + 10 + 5 + 4);
    }

    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;
    }
}