<?php
defined('BASEPATH') or exit('No direct script access allowed');

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

// =============================================================================
// Custom FPDF: override Footer() agar tampil otomatis di SETIAP halaman
// =============================================================================
class MutasiPenerimaanFpdf extends FPDF
{
   public $printUsername = '-';
   public $printDate     = '';

   public function __construct($orientation = 'P', $unit = 'mm', $size = 'A4')
   {
      parent::__construct($orientation, $unit, $size);
      // Daftarkan Arial Narrow
      $this->AddFont('Arial_Narrow', '',  'Arial_Narrow.php');   // regular
      $this->AddFont('Arial_Narrow', 'B', 'Arial_Narrow_B.php'); // bold
   }

   public function Footer()
   {
      $pageW = $this->GetPageWidth() - 30; // margin 15+15

      // ── Posisi: 20mm dari bawah halaman ──────────────────────────────────
      $this->SetY(-20);

      // ── Baris 1: Print Oleh (kiri) | Nomor Halaman (tengah) ───────────────
      $colSide   = ($pageW - 40) / 2;
      $colCenter = 40;

      $this->SetFont('Arial_Narrow', '', 7);
      $this->Cell($colSide,   4, 'Print Oleh : ' . $this->printUsername, 0, 0, 'L');
      $this->Cell($colCenter, 4, $this->PageNo() . ' / {nb}',            0, 0, 'C');
      $this->Cell($colSide,   4, '',                                      0, 1, 'R');

      // ── Baris 2: Tgl Print (kiri) ──────────────────────────────────────────
      $this->SetFont('Arial_Narrow', '', 7);
      $this->Cell($colSide, 4, 'Tgl Print   : ' . $this->printDate, 0, 0, 'L');
      $this->Cell($colCenter + $colSide, 4, '', 0, 1, 'L');
   }
}

// =============================================================================
// Controller
// =============================================================================
class Rpt_penerimaan_mutasi extends MY_Controller
{
   // ── Properti bersama antar fungsi PDF ─────────────────────────────────────
   /** @var MutasiPenerimaanFpdf */
   private $_pdf;
   private $_pageW;
   private $_header_data;
   private $_username;

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

   public function index()
   {
      echo "Mutasi Penerimaan (Receive Mutasi) Report API";
   }

   // =========================================================================
   // ENDPOINT: pdf
   // GET/POST: id (MutasiHandoverID), username (opsional)
   // =========================================================================
   public function pdf()
   {
      try {
         $id       = intval($this->input->get_post('id'));
         $username = trim($this->input->get_post('username') ?? '');

         if ($id <= 0) {
            $this->sys_error("ID tidak valid");
            exit;
         }

         // ── Ambil data header & detail dari DB ────────────────────────────
         $header  = $this->_get_header($id);

         // Validasi: hanya dokumen berstatus Received yang bisa dicetak
         if ($header['MutasiHandoverStatus'] !== 'Received') {
            $this->sys_error("Dokumen belum diterima (Status: " . $header['MutasiHandoverStatus'] . ")");
            exit;
         }

         $details = $this->_get_detail($id);

         // ── Inisialisasi FPDF custom ──────────────────────────────────────
         $this->_pdf                  = new MutasiPenerimaanFpdf('P', 'mm', 'A4');
         $this->_pdf->printUsername   = $username !== '' ? $username : '-';
         $this->_pdf->printDate       = date('d-m-Y H:i:s');
         $this->_pageW                = $this->_pdf->GetPageWidth() - 30;
         $this->_header_data          = $header;
         $this->_username             = $this->_pdf->printUsername;

         $this->_pdf->AliasNbPages();                 // aktifkan alias total halaman
         $this->_pdf->SetMargins(15, 15, 15);
         $this->_pdf->SetAutoPageBreak(true, 22);     // 22mm ruang footer di bawah
         $this->_pdf->AddPage();

         // ── Susun isi halaman ─────────────────────────────────────────────
         $this->_pdf_header();
         $this->_pdf_data($details);
         $this->_pdf_terms();

         // ── Output ────────────────────────────────────────────────────────
         $filename = 'PM_' . str_replace('/', '-', $header['MutasiHandoverNumber']) . '.pdf';
         header('Content-Type: application/pdf');
         header('Content-Disposition: inline; filename="' . $filename . '"');
         header('Cache-Control: private, max-age=0, must-revalidate');
         header('Pragma: public');
         echo $this->_pdf->Output('S');
      } catch (Exception $exc) {
         $this->sys_error($exc->getMessage());
      }
   }

   // =========================================================================
   // DATABASE: Ambil data header
   // =========================================================================
   private function _get_header($id)
   {
      $sql = "
         SELECT
            mh.*,
            mr.MutasiRequestNumber,
            ic.itemCategoryID,
            ic.itemCategoryName,
            a.M_BranchID     AS branch_asal_id,
            a.M_BranchCode   AS branch_asal_code,
            a.M_BranchName   AS branch_asal_name,
            b.M_BranchID     AS branch_tujuan_id,
            b.M_BranchCode   AS branch_tujuan_code,
            b.M_BranchName   AS branch_tujuan_name,
            IFNULL(u.M_UserUsername, '')   AS CreatedByName,
            IFNULL(ur.M_UserUsername, '')  AS ReceiveByName,
            CASE
               WHEN wh.WarehouseType = 'B' THEN CONCAT(wh.WarehouseCode, ' ', wh.WarehouseName, ' - ', b.M_BranchName)
               ELSE wh.WarehouseName
            END AS WarehouseName,
            r.M_RuanganName
         FROM mutasi_handover mh
         LEFT JOIN mutasi_request mr ON mr.MutasiRequestID = mh.MutasiHandoverMutasiRequestID
         JOIN item_category ic ON ic.itemCategoryID = mh.MutasiHandoverItemCategoryID
            AND ic.itemCategoryIsActive = 'Y'
         JOIN m_branch a ON a.M_BranchID = mh.MutasiHandoverFromBranchID
            AND a.M_BranchIsActive = 'Y'
         JOIN m_branch b ON b.M_BranchID = mh.MutasiHandoverToBranchID
            AND b.M_BranchIsActive = 'Y'
         LEFT JOIN m_user u  ON u.M_UserID   = mh.MutasiHandoverUserID
         LEFT JOIN m_user ur ON ur.M_UserID  = mh.MutasiHandoverReceiveUserID
         LEFT JOIN warehouse wh ON wh.WarehouseID = mh.MutasiHandoverReceiveWarehouseID
            AND wh.WarehouseIsActive = 'Y'
         LEFT JOIN m_ruangan r ON r.M_RuanganID = mh.MutasiHandoverReceiveM_RuanganID
            AND r.M_RuanganIsActive = 'Y'
         WHERE mh.MutasiHandoverID = ?
           AND mh.MutasiHandoverIsActive = 'Y'
         LIMIT 1
      ";
      $qry = $this->db->query($sql, array($id));
      if (!$qry || $qry->num_rows() === 0) {
         $this->sys_error("Data Penerimaan Mutasi tidak ditemukan");
         exit;
      }
      return $qry->row_array();
   }

   // =========================================================================
   // DATABASE: Ambil data detail
   // =========================================================================
   private function _get_detail($id)
   {
      $sql = "
         SELECT
            mhd.*,
            i.M_ItemCode,
            i.M_ItemDesc,
            iu.ItemUnitName,
            iu.ItemUnitCode,
            st.StockStockNumber   AS StockToNumber,
            sf.StockStockNumber   AS StockFromNumber
         FROM mutasi_handover_detail mhd
         LEFT JOIN m_item i     ON i.M_ItemID     = mhd.MutasiHandoverDetailM_ItemID
         LEFT JOIN itemunit iu   ON iu.ItemUnitID  = mhd.MutasiHandoverDetailItemUnitID
         LEFT JOIN stock sf      ON sf.StockID     = mhd.MutasiHandoverDetailStockID_From
         LEFT JOIN stock st      ON st.StockID     = mhd.MutasiHandoverDetailStockID_To
         WHERE mhd.MutasiHandoverDetailMutasiHandoverID = ?
           AND mhd.MutasiHandoverDetailIsActive = 'Y'
         ORDER BY mhd.MutasiHandoverDetailID ASC
      ";
      $qry = $this->db->query($sql, array($id));
      return $qry ? $qry->result_array() : array();
   }

   // =========================================================================
   // PDF SECTION: Header — Judul + Informasi Dokumen (2 kolom)
   // =========================================================================
   private function _pdf_header()
   {
      $pdf    = $this->_pdf;
      $pageW  = $this->_pageW;
      $header = $this->_header_data;

      // ── Judul utama ───────────────────────────────────────────────────────
      $pdf->SetFont('Arial_Narrow', 'B', 14);
      $pdf->Cell($pageW, 8, 'PENERIMAAN MUTASI', 0, 1, 'L');
      $pdf->SetDrawColor(0, 0, 0);
      $pdf->SetLineWidth(0.5);
      $pdf->Line(15, $pdf->GetY(), 15 + $pageW, $pdf->GetY());
      $pdf->Ln(2);

      $startY = $pdf->GetY();
      $halfW  = $pageW / 2;
      $lblW   = 30;
      $valW   = $halfW - $lblW - 4;

      // ── Kolom Kiri ────────────────────────────────────────────────────────
      $pdf->SetY($startY);

      $leftItems = array(
         array('Nomor Handover', $header['MutasiHandoverNumber'], true),
         array('No. Request',    $header['MutasiRequestNumber'] ?: '-', false),
         array('Tgl Kirim',      $this->_fmt_date($header['MutasiHandoverDate']), false),
         array('Tgl Terima',     $this->_fmt_date($header['MutasiHandoverReceiveDate']), false),
         array('Status',         $header['MutasiHandoverStatus'], false),
         array('Kategori',       $header['itemCategoryName'], false),
      );

      foreach ($leftItems as $item) {
         $pdf->SetX(15);
         $pdf->SetFont('Arial_Narrow', '', 9);
         $pdf->Cell($lblW, 5, $item[0], 0, 0, 'L');
         $pdf->Cell(4,    5, ':', 0, 0, 'C');
         if ($item[2]) {
            $pdf->SetFont('Arial_Narrow', 'B', 9);
         } else {
            $pdf->SetFont('Arial_Narrow', '', 9);
         }
         $pdf->Cell($valW, 5, $item[1], 0, 1, 'L');
      }

      // Keterangan (Note) langsung di bawah Kategori
      if (!empty($header['MutasiHandoverNote'])) {
         $pdf->SetX(15);
         $pdf->SetFont('Arial_Narrow', '', 9);
         $pdf->Cell($lblW, 5, 'Keterangan', 0, 0, 'L');
         $pdf->Cell(4,    5, ':', 0, 0, 'C');
         $pdf->MultiCell($valW, 5, $header['MutasiHandoverNote'], 0, 'L');
      }
      $leftY = $pdf->GetY();

      // ── Kolom Kanan ───────────────────────────────────────────────────────
      $pdf->SetY($startY);
      $rightX = 15 + $halfW;

      $rightItems = array(
         array('Cabang Asal',       $header['branch_asal_name']),
         array('Cabang Tujuan',     $header['branch_tujuan_name']),
         array('Warehouse Tujuan',  $header['WarehouseName'] ?: '-'),
         array('Ruangan Tujuan',    $header['M_RuanganName'] ?: '-'),
         array('Diterima Oleh',     $header['MutasiHandoverStatus'] === 'Received' ? $header['ReceiveByName'] : '-'),
         array('Dibuat Oleh',       $header['CreatedByName']),
      );

      foreach ($rightItems as $item) {
         $pdf->SetX($rightX);
         $pdf->SetFont('Arial_Narrow', '', 9);
         $pdf->Cell($lblW, 5, $item[0], 0, 0, 'L');
         $pdf->Cell(4,    5, ':', 0, 0, 'C');
         $pdf->SetFont('Arial_Narrow', '', 9);
         $pdf->Cell($valW, 5, $item[1], 0, 1, 'L');
      }

      $rightY = $pdf->GetY();

      // Posisikan Y ke yang paling bawah + margin
      $pdf->SetY(max($leftY, $rightY) + 4);
   }

   // =========================================================================
   // PDF SECTION: Data — Tabel detail item + ringkasan nilai
   // =========================================================================
   private function _pdf_data($details)
   {
      $pdf    = $this->_pdf;
      $pageW  = $this->_pageW;
      $header = $this->_header_data;

      // ── Definisi kolom: [label, lebar, align] ─────────────────────────────
      // Total lebar = 180mm (A4 portrait: 210 - margin 15 kiri - 15 kanan)
      // 8 + 72 + 15 + 15 + 22 + 22 + 26 = 180
      $cols = array(
         array('No',            8,  'C'),
         array('Nama Item',     72, 'L'),
         array('Unit',          15, 'C'),
         array('Qty',           15, 'R'),
         array('Nilai Buku',    22, 'R'),
         array('Total',         22, 'R'),
         array('Stock Tujuan',  26, 'C'),
      );

      // Header kolom
      $pdf->SetLineWidth(0.3);
      $pdf->SetFont('Arial_Narrow', 'B', 7);
      $pdf->SetFillColor(220, 220, 220);
      $pdf->SetDrawColor(0, 0, 0);
      foreach ($cols as $c) {
         $pdf->Cell($c[1], 7, $c[0], 1, 0, 'C', true);
      }
      $pdf->Ln();

      // Baris data
      $pdf->SetLineWidth(0.2);
      $pdf->SetFont('Arial_Narrow', '', 7.5);
      $pdf->SetFillColor(255, 255, 255);
      $no        = 1;
      $total_val = 0;

      foreach ($details as $d) {
         $bookValue = floatval($d['MutasiHandoverDetailBookValue'] ?? 0);
         $qty       = floatval($d['MutasiHandoverDetailQty'] ?? 0);
         $lineTotal = $qty * $bookValue;
         $stockTo   = $d['StockToNumber'] ?: '-';

         $pdf->Cell($cols[0][1], 6, $no,                                            1, 0, 'C');
         $pdf->Cell($cols[1][1], 6, $d['M_ItemDesc'] ?: ($d['M_ItemCode'] ?: '-'),  1, 0, 'L');
         $pdf->Cell($cols[2][1], 6, $d['ItemUnitName'] ?: ($d['ItemUnitCode'] ?: '-'), 1, 0, 'C');
         $pdf->Cell($cols[3][1], 6, $this->_fmt_qty($qty),                           1, 0, 'R');
         $pdf->Cell($cols[4][1], 6, $this->_fmt_rp($bookValue),                      1, 0, 'R');
         $pdf->Cell($cols[5][1], 6, $this->_fmt_rp($lineTotal),                      1, 0, 'R');
         $pdf->Cell($cols[6][1], 6, $stockTo,                                         1, 0, 'C');
         $pdf->Ln();

         $total_val += $lineTotal;
         $no++;
      }

      // Baris TOTAL
      $span = array_sum(array_column(array_slice($cols, 0, 6), 1));
      $pdf->SetLineWidth(0.3);
      $pdf->SetFont('Arial_Narrow', 'B', 8);
      $pdf->SetFillColor(220, 220, 220);
      $pdf->Cell($span,        7, 'TOTAL',                    1, 0, 'R', true);
      $pdf->Cell($cols[6][1], 7, '',                          1, 0, 'C', true);
      $pdf->Ln();

      // ── Ringkasan nilai (rata kanan) ──────────────────────────────────────
      $pdf->Ln(3);
      $summary = array(
         array('Total Nilai Penerimaan', $this->_fmt_rp($header['MutasiHandoverTotalValue'])),
      );

      $cW1     = 50;
      $cW2     = 40;
      $offsetX = 15 + $this->_pageW - $cW1 - $cW2;

      foreach ($summary as $s) {
         $pdf->SetX($offsetX);
         $pdf->SetFont('Arial_Narrow', '', 8);
         $pdf->Cell($cW1, 5, $s[0], 0, 0, 'L');
         $pdf->SetFont('Arial_Narrow', 'B', 8);
         $pdf->Cell($cW2, 5, $s[1], 0, 1, 'R');
      }

      $pdf->Ln(4);
   }

   // =========================================================================
   // PDF SECTION: Syarat & Ketentuan
   // =========================================================================
   private function _pdf_terms()
   {
      $pdf   = $this->_pdf;
      $pageW = $this->_pageW;

      $terms = array(
         'Penerimaan mutasi ini dilakukan berdasarkan dokumen handover (penyerahan) yang telah dikirim oleh cabang asal.',
         'Penerima wajib memeriksa kesesuaian jumlah, jenis, dan kondisi barang dengan dokumen handover.',
         'Setelah diterima, barang menjadi tanggung jawab cabang tujuan dan akan dicatat dalam stok tujuan.',
         'Dokumen ini bersifat internal dan hanya digunakan untuk keperluan proses mutasi barang.',
      );

      $pdf->SetFont('Arial_Narrow', 'B', 9);
      $pdf->Cell($pageW, 5, 'Syarat & Ketentuan:', 0, 1, 'L');

      $pdf->SetFont('Arial_Narrow', '', 8);
      foreach ($terms as $i => $t) {
         $pdf->Cell(6,            5, ($i + 1) . '.', 0, 0, 'R');
         $pdf->Cell($pageW - 6,   5, $t,             0, 1, 'L');
      }
   }

   // =========================================================================
   // HELPER: Format tampilan
   // =========================================================================
   private function _fmt_date($d)
   {
      if (!$d || $d === '0000-00-00') return '-';
      return date('d-m-Y', strtotime($d));
   }

   private function _fmt_datetime($d)
   {
      if (!$d || $d === '0000-00-00 00:00:00') return '-';
      return date('d-m-Y H:i', strtotime($d));
   }

   private function _fmt_num($n)
   {
      return number_format(floatval($n), 2, ',', '.');
   }

   private function _fmt_qty($n)
   {
      return number_format(floatval($n), 0, ',', '.');
   }

   private function _fmt_rp($n)
   {
      return 'Rp ' . number_format(floatval($n), 2, ',', '.');
   }
}