const {
  Document, Packer, Paragraph, TextRun, Table, TableRow, TableCell,
  AlignmentType, HeadingLevel, LevelFormat, BorderStyle, WidthType,
  VerticalAlign, ShadingType, Header, Footer, PageNumber, NumberFormat,
  UnderlineType
} = require('docx');
const fs = require('fs');

// ── Colour palette ──────────────────────────────────────────────────────────
const NAVY  = "1B3A6B";  // section headings & header bar
const GOLD  = "C8A84B";  // accent / divider
const WHITE = "FFFFFF";
const DARK  = "1A1A1A";  // body text
const MID   = "444444";  // secondary text
const LIGHT = "F0F4FA";  // shaded rows

// ── Helpers ──────────────────────────────────────────────────────────────────
const noBorder = { style: BorderStyle.NONE, size: 0, color: "auto" };
const noBorders = { top: noBorder, bottom: noBorder, left: noBorder, right: noBorder, insideHorizontal: noBorder, insideVertical: noBorder };

function sectionHeading(text) {
  return new Paragraph({
    spacing: { before: 280, after: 80 },
    border: { bottom: { style: BorderStyle.SINGLE, size: 8, color: GOLD } },
    children: [
      new TextRun({
        text: text.toUpperCase(),
        bold: true,
        size: 26,
        font: "Arial",
        color: NAVY,
        characterSpacing: 60
      })
    ]
  });
}

function bodyText(text, opts = {}) {
  return new Paragraph({
    spacing: { before: opts.spaceBefore || 40, after: opts.spaceAfter || 40 },
    alignment: opts.align || AlignmentType.LEFT,
    indent: opts.indent ? { left: 360 } : undefined,
    children: [
      new TextRun({
        text,
        size: opts.size || 22,
        font: "Arial",
        bold: opts.bold || false,
        italics: opts.italic || false,
        color: opts.color || DARK
      })
    ]
  });
}

function twoColRow(left, right, shade) {
  const shade_val = shade ? { type: ShadingType.SOLID, color: LIGHT, fill: LIGHT } : undefined;
  return new TableRow({
    children: [
      new TableCell({
        width: { size: 3200, type: WidthType.DXA },
        shading: shade_val,
        borders: noBorders,
        verticalAlign: VerticalAlign.CENTER,
        margins: { top: 60, bottom: 60, left: 100, right: 100 },
        children: [
          new Paragraph({
            children: [new TextRun({ text: left, bold: true, size: 20, font: "Arial", color: NAVY })]
          })
        ]
      }),
      new TableCell({
        width: { size: 6200, type: WidthType.DXA },
        shading: shade_val,
        borders: noBorders,
        verticalAlign: VerticalAlign.CENTER,
        margins: { top: 60, bottom: 60, left: 100, right: 100 },
        children: [
          new Paragraph({
            children: [new TextRun({ text: right, size: 20, font: "Arial", color: DARK })]
          })
        ]
      })
    ]
  });
}

function expBlock(role, org, period, bullets) {
  const items = [];
  items.push(new Paragraph({
    spacing: { before: 120, after: 20 },
    children: [new TextRun({ text: role, bold: true, size: 23, font: "Arial", color: NAVY })]
  }));
  items.push(new Paragraph({
    spacing: { before: 0, after: 20 },
    children: [
      new TextRun({ text: org, size: 21, font: "Arial", color: MID, italics: true }),
      new TextRun({ text: "   |   ", size: 20, font: "Arial", color: GOLD }),
      new TextRun({ text: period, size: 20, font: "Arial", color: MID })
    ]
  }));
  for (const b of bullets) {
    items.push(new Paragraph({
      indent: { left: 360, hanging: 180 },
      spacing: { before: 30, after: 30 },
      children: [
        new TextRun({ text: "\u2022  " + b, size: 20, font: "Arial", color: DARK })
      ]
    }));
  }
  return items;
}

function eduBlock(degree, institution, location, year, detail) {
  const items = [];
  items.push(new Paragraph({
    spacing: { before: 120, after: 20 },
    children: [new TextRun({ text: degree, bold: true, size: 22, font: "Arial", color: NAVY })]
  }));
  items.push(new Paragraph({
    spacing: { before: 0, after: 20 },
    children: [
      new TextRun({ text: institution, size: 21, font: "Arial", color: MID, italics: true }),
      new TextRun({ text: "   |   ", size: 20, font: "Arial", color: GOLD }),
      new TextRun({ text: location + "   " + year, size: 20, font: "Arial", color: MID })
    ]
  }));
  if (detail) {
    items.push(new Paragraph({
      indent: { left: 360 },
      spacing: { before: 20, after: 30 },
      children: [new TextRun({ text: detail, size: 20, font: "Arial", color: DARK, italics: true })]
    }));
  }
  return items;
}

function smallGap() {
  return new Paragraph({ spacing: { before: 60, after: 60 }, children: [new TextRun("")] });
}

// ── Name / Header Banner ────────────────────────────────────────────────────
const headerBanner = new Table({
  width: { size: 9360, type: WidthType.DXA },
  borders: noBorders,
  rows: [
    new TableRow({
      children: [
        new TableCell({
          shading: { type: ShadingType.SOLID, color: NAVY, fill: NAVY },
          borders: noBorders,
          margins: { top: 300, bottom: 200, left: 400, right: 400 },
          children: [
            new Paragraph({
              alignment: AlignmentType.CENTER,
              children: [new TextRun({ text: "DR RICHARD MADALITSO BANDA", bold: true, size: 52, font: "Arial", color: WHITE })]
            }),
            new Paragraph({
              alignment: AlignmentType.CENTER,
              spacing: { before: 60, after: 60 },
              children: [new TextRun({ text: "MBChB  |  MPH  |  Internal Medicine Registrar (Candidate)", size: 24, font: "Arial", color: GOLD })]
            }),
          ]
        })
      ]
    })
  ]
});

// ── Contact strip ───────────────────────────────────────────────────────────
const contactStrip = new Table({
  width: { size: 9360, type: WidthType.DXA },
  borders: noBorders,
  rows: [
    new TableRow({
      children: [
        new TableCell({
          shading: { type: ShadingType.SOLID, color: "E8EDF5", fill: "E8EDF5" },
          borders: noBorders,
          margins: { top: 120, bottom: 120, left: 400, right: 200 },
          children: [
            new Paragraph({
              alignment: AlignmentType.CENTER,
              children: [
                new TextRun({ text: "Lusaka, Zambia", size: 19, font: "Arial", color: MID }),
                new TextRun({ text: "   \u2022   ", size: 19, font: "Arial", color: GOLD }),
                new TextRun({ text: "Ministry of Health, Zambia", size: 19, font: "Arial", color: MID }),
                new TextRun({ text: "   \u2022   ", size: 19, font: "Arial", color: GOLD }),
                new TextRun({ text: "Levy Mwanawasa University Teaching Hospital", size: 19, font: "Arial", color: MID }),
              ]
            })
          ]
        })
      ]
    })
  ]
});

// ── Profile ─────────────────────────────────────────────────────────────────
const profilePara = new Paragraph({
  spacing: { before: 60, after: 80 },
  alignment: AlignmentType.JUSTIFIED,
  children: [
    new TextRun({
      text: "A dedicated and motivated medical doctor with over seven years of post-graduate clinical experience. Currently serving as an Internal Medicine Registrar at Levy Mwanawasa University Teaching Hospital - the second largest referral hospital in Zambia - while pursuing a second Master's degree in Internal Medicine. Holds a Bachelor of Medicine and Bachelor of Surgery (MBChB) and a Master of Public Health (MPH). Committed to delivering high-quality patient care, advancing medical education, and contributing to public health outcomes in Zambia and beyond.",
      size: 20,
      font: "Arial",
      color: DARK
    })
  ]
});

// ── Personal Details Table ──────────────────────────────────────────────────
const personalTable = new Table({
  width: { size: 9360, type: WidthType.DXA },
  borders: noBorders,
  rows: [
    twoColRow("Nationality",       "Zambian",                        true),
    twoColRow("City of Birth",     "Lusaka, Zambia",                 false),
    twoColRow("Languages",         "English, Chewa, Tumbuka, Chinese (Mandarin)", true),
    twoColRow("Current Employer",  "Ministry of Health, Zambia",     false),
    twoColRow("Current Post",      "Internal Medicine Registrar, Levy Mwanawasa University Teaching Hospital", true),
  ]
});

// ── Employment ──────────────────────────────────────────────────────────────
const empBlocks = [
  ...expBlock(
    "Internal Medicine Registrar",
    "Levy Mwanawasa University Teaching Hospital, Ministry of Health",
    "2019 - Present",
    [
      "Manage complex inpatient cases under supervision of consultants in internal medicine.",
      "Participate in ward rounds, clinical teaching, and multidisciplinary team meetings.",
      "Assist in the training and supervision of junior medical officers and interns.",
      "Conduct patient assessments and formulate evidence-based management plans.",
      "Actively engaged in continuing professional development and academic study towards a second Master's degree in Internal Medicine.",
    ]
  ),
];

// ── Education ───────────────────────────────────────────────────────────────
const eduBlocks = [
  ...eduBlock(
    "Master of Science in Internal Medicine (Candidate)",
    "Texila American University",
    "Zambia",
    "2022 - Present",
    "Ongoing postgraduate specialist training programme in Internal Medicine."
  ),
  ...eduBlock(
    "Master of Public Health (MPH)",
    "Texila American University",
    "Zambia",
    "2022",
    "Focused on epidemiology, health systems, research methods, and health policy."
  ),
  ...eduBlock(
    "Bachelor of Medicine & Bachelor of Surgery (MBChB)",
    "Jiangxi University of Traditional Chinese Medicine",
    "Nanchang, China",
    "2017",
    "Six-year integrated programme combining biomedical sciences with clinical training."
  ),
  ...eduBlock(
    "Senior High School Certificate",
    "Rephidim Institute",
    "Lusaka, Zambia",
    "Completed",
    null
  ),
  ...eduBlock(
    "Junior High School Certificate",
    "Rephidim Institute",
    "Lusaka, Zambia",
    "Completed",
    null
  ),
  ...eduBlock(
    "Junior Primary School",
    "Mango Groove School, Kasupe Road",
    "Lusaka, Zambia",
    "Completed",
    null
  ),
];

// ── Skills Table ─────────────────────────────────────────────────────────────
const skillsTable = new Table({
  width: { size: 9360, type: WidthType.DXA },
  borders: noBorders,
  rows: [
    twoColRow("Clinical Skills",     "Internal medicine, history-taking, physical examination, clinical diagnosis, patient management, procedures", true),
    twoColRow("Research & Public Health", "Epidemiology, biostatistics, health policy, research design, report writing", false),
    twoColRow("Communication",       "Patient counselling, team leadership, clinical teaching, public speaking", true),
    twoColRow("Languages",           "English (Fluent), Chewa (Fluent), Tumbuka (Fluent), Chinese/Mandarin (Fluent)", false),
    twoColRow("IT & Tools",          "Microsoft Office Suite, medical information systems, electronic health records", true),
  ]
});

// ── Professional Affiliations ────────────────────────────────────────────────
const affiliations = [
  "Health Professions Council of Zambia (HPCZ) - Registered Medical Practitioner",
  "Ministry of Health, Zambia - Employed Medical Officer (2019 - Present)",
];

// ── References ───────────────────────────────────────────────────────────────
const refPara = bodyText("Available upon request.", { italic: true, color: MID });

// ── Assemble Document ────────────────────────────────────────────────────────
const doc = new Document({
  styles: {
    default: {
      document: { run: { font: "Arial", size: 22, color: DARK } }
    }
  },
  sections: [{
    properties: {
      page: {
        size: { width: 11906, height: 16838 }, // A4
        margin: { top: 720, right: 1080, bottom: 1080, left: 1080 }
      }
    },
    children: [
      // Header banner
      headerBanner,
      contactStrip,
      smallGap(),

      // Profile
      sectionHeading("Professional Profile"),
      profilePara,

      // Personal Details
      sectionHeading("Personal Details"),
      personalTable,

      // Employment
      sectionHeading("Employment History"),
      ...empBlocks,

      // Education
      sectionHeading("Education"),
      ...eduBlocks,

      // Skills
      sectionHeading("Core Competencies & Skills"),
      skillsTable,

      // Professional Affiliations
      sectionHeading("Professional Affiliations & Registration"),
      ...affiliations.map((a, i) =>
        new Paragraph({
          indent: { left: 360, hanging: 180 },
          spacing: { before: 40, after: 40 },
          children: [new TextRun({ text: "\u2022  " + a, size: 20, font: "Arial", color: DARK })]
        })
      ),

      smallGap(),

      // References
      sectionHeading("References"),
      refPara,
    ]
  }]
});

Packer.toBuffer(doc).then(buffer => {
  fs.writeFileSync("/home/daytona/workspace/cv-banda/Dr_Richard_Madalitso_Banda_CV.docx", buffer);
  console.log("CV written successfully.");
}).catch(err => {
  console.error("Error:", err);
  process.exit(1);
});

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/cv-banda/build_cv.js'