feat: build study load PDF

2026-08-18 15:38:37 +08:00
parent 544d4aab1a
commit cefad72416
2 changed files with 170 additions and 0 deletions
@@ -0,0 +1,140 @@
+(function (root, factory) {
+  if (typeof module === 'object' && module.exports) {
+    module.exports = factory();
+  } else {
+    root.ISMIStools = Object.assign(root.ISMIStools || {}, factory());
+  }
+})(typeof self !== 'undefined' ? self : this, function () {
+  'use strict';
+
+  function getPDFLib() {
+    return (typeof self !== 'undefined' && self.PDFLib) ||
+           (typeof globalThis !== 'undefined' && globalThis.PDFLib);
+  }
+
+  function wrapText(text, font, size, maxWidth) {
+    const words = String(text).split(/\s+/).filter(Boolean);
+    const lines = [];
+    let line = '';
+    for (const word of words) {
+      const candidate = line ? line + ' ' + word : word;
+      if (font.widthOfTextAtSize(candidate, size) <= maxWidth) {
+        line = candidate;
+      } else {
+        if (line) lines.push(line);
+        line = word;
+      }
+    }
+    if (line) lines.push(line);
+    return lines.length ? lines : [''];
+  }
+
+  async function buildStudyLoadPdf(data) {
+    const PDFLib = getPDFLib();
+    const { PDFDocument, StandardFonts, rgb } = PDFLib;
+    const header = data.header || {};
+    const courses = data.courses || [];
+
+    const doc = await PDFDocument.create();
+    const page = doc.addPage([612, 792]); // Letter
+    const font = doc.embedStandardFont(StandardFonts.Helvetica);
+    const bold = doc.embedStandardFont(StandardFonts.HelveticaBold);
+    const margin = 50;
+    const contentWidth = 612 - margin * 2;
+    let y = 792 - 50;
+
+    const black = rgb(0, 0, 0);
+    const gray = rgb(0.3, 0.3, 0.3);
+
+    function center(text, size, fontToUse, dy) {
+      const w = fontToUse.widthOfTextAtSize(text, size);
+      page.drawText(text, { x: (612 - w) / 2, y: y, size, font: fontToUse, color: black });
+      y -= dy;
+    }
+    function left(text, size, fontToUse, x, dy) {
+      page.drawText(text, { x, y, size, font: fontToUse, color: black });
+      y -= dy;
+    }
+
+    // Header
+    center(header.semester || '', 14, bold, 20);
+    center("STUDENT'S STUDY LOAD", 16, bold, 24);
+    center(header.dateRange || '', 11, font, 18);
+    if (header.dateEnrolled) left('Date Enrolled: ' + header.dateEnrolled, 10, font, margin, 16);
+    y -= 6;
+    if (header.studentId) left('Student ID: ' + header.studentId, 10, font, margin, 14);
+    if (header.fullName) left('Name: ' + header.fullName, 10, font, margin, 14);
+    if (header.program) left('Program: ' + header.program, 10, font, margin, 14);
+    if (header.yearLevel) left('Year Level: ' + header.yearLevel, 10, font, margin, 14);
+    y -= 10;
+
+    // Table columns: NOTE, UNITS, TEACHER, COURSE DESCRIPTION, COURSE, GROUP
+    const cols = [
+      { key: 'status', label: 'NOTE', x: margin, w: 40 },
+      { key: 'units', label: 'UNITS', x: margin + 40, w: 45 },
+      { key: 'teacher', label: 'TEACHER', x: margin + 85, w: 110 },
+      { key: 'description', label: 'COURSE DESCRIPTION', x: margin + 195, w: 150 },
+      { key: 'courseCode', label: 'COURSE', x: margin + 345, w: 70 },
+      { key: 'groupSchedule', label: 'GROUP', x: margin + 415, w: 97 }
+    ];
+    const cellSize = 9;
+    const headerSize = 9;
+
+    function drawRow(cells, isHeader) {
+      const f = isHeader ? bold : font;
+      const size = isHeader ? headerSize : cellSize;
+      const linesPerCol = cols.map((c) => wrapText(cells[c.key] || '', f, size, c.w - 6));
+      const rowHeight = Math.max.apply(null, linesPerCol.map((l) => l.length)) * 11 + 8;
+      if (y - rowHeight < 50) {
+        page.drawText('', { x: margin, y: y, size: 1, font, color: black });
+        return false;
+      }
+      if (isHeader) {
+        page.drawRectangle({ x: margin, y: y - rowHeight, width: contentWidth, height: rowHeight, color: rgb(0.85, 0.9, 0.95) });
+      }
+      page.drawRectangle({ x: margin, y: y - rowHeight, width: contentWidth, height: rowHeight, borderColor: black, borderWidth: 0.5 });
+      for (const c of cols) {
+        page.drawRectangle({ x: c.x, y: y - rowHeight, width: c.w, height: rowHeight, borderColor: black, borderWidth: 0.5 });
+      }
+      for (let i = 0; i < cols.length; i++) {
+        const c = cols[i];
+        const lines = linesPerCol[i];
+        let ty = y - 10;
+        for (const line of lines) {
+          page.drawText(line, { x: c.x + 3, y: ty, size, font: f, color: black });
+          ty -= 11;
+        }
+      }
+      y -= rowHeight;
+      return true;
+    }
+
+    const headerCells = {};
+    cols.forEach((c) => { headerCells[c.key] = c.label; });
+    drawRow(headerCells, true);
+
+    for (const course of courses) {
+      const cells = {
+        status: course.status,
+        units: course.units,
+        teacher: course.teacher,
+        description: course.description,
+        courseCode: course.courseCode,
+        groupSchedule: (course.group ? course.group + ' ' : '') + (course.schedule || '')
+      };
+      if (!drawRow(cells, false)) break;
+    }
+
+    y -= 12;
+    if (data.totalUnits) {
+      page.drawText('Total Units: ' + data.totalUnits, { x: margin, y: y, size: 11, font: bold, color: black });
+      y -= 16;
+    }
+    const printedBy = 'Printed by: ' + (header.studentId || '') + ' on ' + new Date().toLocaleDateString();
+    page.drawText(printedBy, { x: margin, y: y, size: 9, font, color: gray });
+
+    return doc.save(); // returns Promise<Uint8Array>
+  }
+
+  return { buildStudyLoadPdf };
+});
@@ -0,0 +1,30 @@
+const { test } = require('node:test');
+const assert = require('node:assert');
+global.PDFLib = require('pdf-lib');
+const { buildStudyLoadPdf } = require('../pdf.js');
+
+const sampleData = {
+  header: {
+    fullName: 'ADRIAN ALFRED CHIONG BONPIN',
+    studentId: '22103625',
+    program: 'BACHELOR OF SCIENCE IN INFORMATION TECHNOLOGY',
+    yearLevel: '4',
+    semester: '1ST Semester 2026',
+    dateEnrolled: '8/5/2024',
+    dateRange: 'AUGUST - JANUARY'
+  },
+  courses: [
+    { group: '7', courseCode: 'CIS 2101', description: 'DATA STRUCTURES AND ALGORITHMS', units: '3.00', teacher: 'CHRISTIAN MADERAZO', schedule: 'M,W 03:00 PM - 05:30 PM LB443TC', status: 'REGULAR' },
+    { group: '2', courseCode: 'IT 3103N', description: 'SYSTEMS INTEGRATION AND ARCHITECTURE', units: '3.00', teacher: 'KHENT DELA PAZ', schedule: 'T,Th 01:30 PM - 03:00 PM DCISMVR3TC', status: 'REGULAR' }
+  ],
+  totalUnits: '6.00'
+};
+
+test('buildStudyLoadPdf returns valid PDF bytes', async () => {
+  const bytes = await buildStudyLoadPdf(sampleData);
+  assert.ok(bytes instanceof Uint8Array);
+  const head = Buffer.from(bytes.slice(0, 5)).toString('latin1');
+  assert.strictEqual(head, '%PDF-');
+  const doc = await PDFLib.PDFDocument.load(bytes);
+  assert.strictEqual(doc.getPageCount(), 1);
+});