CRM Pro

const SHEET = 'CRM_Data';

function doGet(e) {
  try {
    const ss = SpreadsheetApp.getActiveSpreadsheet();
    let sh = ss.getSheetByName(SHEET);
    if (!sh || sh.getLastRow() <= 1) return out({crm:{}});
    const vals = sh.getDataRange().getValues();
    const heads = vals[0];
    const crm = {};
    for (let i = 1; i < vals.length; i++) {
      const row = {};
      heads.forEach((h,j) => row[h] = vals[i][j]);
      const idx = String(row.idx);
      try { row.requirementType = JSON.parse(row.requirementType||'[]'); } catch(e){ row.requirementType=[]; }
      delete row.idx; delete row.updatedAt;
      crm[idx] = row;
    }
    return out({crm, ts: new Date().toISOString()});
  } catch(e) { return out({error: e.message}); }
}

function doPost(e) {
  try {
    const crm = JSON.parse(e.postData.contents).crm || {};
    const ss = SpreadsheetApp.getActiveSpreadsheet();
    let sh = ss.getSheetByName(SHEET);
    if (!sh) sh = ss.insertSheet(SHEET);
    const heads = ['idx','companyName','notes','category','callStatus','callAttempts',
      'interestLevel','requirementType','lastContactDate','nextFollowUpDate',
      'nextFollowUpTime','followUpStatus','dealProbability','updatedAt'];
    const rows = [heads];
    for (const idx in crm) {
      const c = crm[idx];
      rows.push([idx, c.companyName||'', c.notes||'', c.category||'',
        c.callStatus||'', c.callAttempts||0, c.interestLevel||0,
        JSON.stringify(c.requirementType||[]), c.lastContactDate||'',
        c.nextFollowUpDate||'', c.nextFollowUpTime||'',
        c.followUpStatus||'', c.dealProbability||0, new Date().toISOString()]);
    }
    sh.clearContents();
    sh.getRange(1,1,rows.length,heads.length).setValues(rows);
    return out({status:'ok', rows: rows.length-1});
  } catch(e) { return out({error: e.message}); }
}

function out(d) {
  return ContentService.createTextOutput(JSON.stringify(d))
    .setMimeType(ContentService.MimeType.JSON);
}