// Commure India Feedback Matrix — Google Apps Script
// Paste this into Extensions > Apps Script in your Google Sheet
// Then: Deploy > New deployment > Web app
// Execute as: Me  |  Who has access: Anyone

const SHEET_NAME = 'Feedback';

function doGet(e) {
  const action = e.parameter.action || '';

  if (action === 'ping') {
    return json({ status: 'ok' });
  }
  if (action === 'append') {
    try {
      const data = JSON.parse(e.parameter.data || '{}');
      appendRow(data);
      return json({ success: true });
    } catch (err) {
      return json({ error: err.toString() });
    }
  }
  if (action === 'read') {
    const callback = e.parameter.callback || '';
    const result = json({ entries: readRows() });
    if (callback) {
      return ContentService.createTextOutput(callback + '(' + JSON.stringify({ entries: readRows() }) + ')')
        .setMimeType(ContentService.MimeType.JAVASCRIPT);
    }
    return result;
  }
  if (action === 'updateStatus') {
    try {
      const id = e.parameter.id || '';
      const status = e.parameter.status || 'Open';
      updateRowStatus(id, status);
      return json({ success: true });
    } catch (err) {
      return json({ error: err.toString() });
    }
  }
  return json({ error: 'Unknown action' });
}

function doPost(e) { return doGet(e); }

function json(obj) {
  return ContentService
    .createTextOutput(JSON.stringify(obj))
    .setMimeType(ContentService.MimeType.JSON);
}

function ensureHeaders(sheet) {
  if (sheet.getLastRow() === 0) {
    const headers = [
      'ID', 'Timestamp', 'Name', 'Role', 'Department',
      'Employee', 'Type', 'Rating', 'Feedback',
      'Action Required', 'Deadline', 'Status', 'ISO Date'
    ];
    sheet.appendRow(headers);
    const hRange = sheet.getRange(1, 1, 1, headers.length);
    hRange.setFontWeight('bold')
          .setBackground('#1A2E52')
          .setFontColor('#FFFFFF');
    sheet.setFrozenRows(1);
    sheet.setColumnWidth(9, 420);
  }
}

function appendRow(data) {
  const ss = SpreadsheetApp.getActiveSpreadsheet();
  let sheet = ss.getSheetByName(SHEET_NAME);
  if (!sheet) sheet = ss.insertSheet(SHEET_NAME);
  ensureHeaders(sheet);

  sheet.appendRow([
    data.id        || '',
    data.timestamp || new Date().toLocaleString(),
    data.name      || '',
    data.role      || '',
    data.dept      || '',
    data.employee  || '',
    data.type      || '',
    data.rating    || '',
    data.feedback  || '',
    data.action    || '',
    data.deadline  || '',
    data.status    || 'Open',
    data.isoDate   || new Date().toISOString()
  ]);

  // Colour-code rows by feedback type
  const row = sheet.getLastRow();
  const colours = {
    critical:    '#FEE2E2',
    high:        '#FEF3C7',
    development: '#ECFEFF',
    positive:    '#D1FAE5'
  };
  const bg = colours[data.type] || '#FFFFFF';
  sheet.getRange(row, 1, 1, 13).setBackground(bg);
}

function updateRowStatus(id, status) {
  const ss = SpreadsheetApp.getActiveSpreadsheet();
  const sheet = ss.getSheetByName(SHEET_NAME);
  if (!sheet || sheet.getLastRow() < 2) return;
  const data = sheet.getRange(2, 1, sheet.getLastRow() - 1, 1).getValues();
  for (var i = 0; i < data.length; i++) {
    if (String(data[i][0]) === String(id)) {
      sheet.getRange(i + 2, 12).setValue(status); // Column 12 = Status
      // Update row background for resolved
      if (status === 'Resolved') {
        sheet.getRange(i + 2, 1, 1, 13).setBackground('#F0F0F0');
      }
      return;
    }
  }
}

function readRows() {
  const ss = SpreadsheetApp.getActiveSpreadsheet();
  const sheet = ss.getSheetByName(SHEET_NAME);
  if (!sheet || sheet.getLastRow() < 2) return [];

  const data = sheet.getRange(2, 1, sheet.getLastRow() - 1, 13).getValues();
  const keys = [
    'id', 'timestamp', 'name', 'role', 'dept', 'employee',
    'type', 'rating', 'feedback', 'action', 'deadline', 'status', 'isoDate'
  ];
  return data
    .map(row => {
      const obj = {};
      keys.forEach((k, i) => { obj[k] = String(row[i] || ''); });
      return obj;
    })
    .filter(r => r.id);
}