Greasemonkey script to convert wise.com account to https://github.com/ledger/ledger/ format file.

wise_to_ledger.js

// ==UserScript==
// @name     Wise.com to ledger
// @version  1
// @grant    GM.setClipboard
// @require  https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js
// @require  https://gist.github.com/raw/2625891/waitForKeyElements.js
// @match    https://wise.com/user/account/*
// ==/UserScript==

function getPayee(node) {
  return node.parents('.css-1t84jn').find('h5.css-7fnyde').text();
}

function handleDetailsView(node) {
  var r= $('<input type="button" value="new button"/>');
  node.prepend(r);
  r.on('click', function() {
    let typeText = node.find('.css-1d1duka h5').last().text();
    var result;
    if (typeText == 'お客様の銀行口座情報') {
      result = runTransfer(node);
    } else if (typeText == '支払い方法') {
      result = runDebit(node);
    } else if (typeText == '取引詳細') {
      result = runExchange(node);
    }
    if (result) {
	    GM.setClipboard(result);
    }
  });
}

function runExchange(node) {
  var code;
  var srcCurrency;
  var srcAmount;
  var comission;
  var rate;
  var dstCurrency;
  var dstAmount;
  node.find('.css-1d1duka').each(function(i, detail) {
    $(detail).find('dl').css('background-color', 'yellow');
    $(detail).find('dt').each(function(i, dt) {
      let dttext = $(dt).text();
      let ddtext = $(dt).next().text();
      if (dttext == '受取額') {
        srcCurrency = getCurrency(ddtext);
        srcAmount = prettyAmount(ddtext);
      } else if (dttext == '当社の手数料') {
        comission = prettyAmount(ddtext);
      } else if (dttext == '為替レート') {
        rate = ddtext;
      } else if (dttext == '両替された通貨') {
        dstCurrency = getCurrency(ddtext);
        dstAmount = prettyAmount(ddtext);
      } else if (dttext == '取引番号') {
        code = ddtext;
      }
    });
  });
  return [
    '',
    '* (' + code + ') Wise.com',
    '    Assets:Wire:Wise                       -' + srcAmount,
    '    Expenses:Commissions                        ' + comission,
    '    Assets:Wire:Wise                        ' + dstAmount + ' @ (1/' + rate + ' ' + srcCurrency + ')',
  ].join('\n');
}

function runTransfer(node) {
  var code;
  var iban;
  var swift;
  var srcCurrency;
  var srcAmount;
  var comission;
  var rate;
  var dstCurrency;
  var dstAmount;
  let payee = getPayee(node).replace(/^受取人: /, '');
  node.find('.css-1d1duka').each(function(i, detail) {
    $(detail).find('dl').css('background-color', 'blue');
    $(detail).find('dt').each(function(i, dt) {
      let dttext = $(dt).text();
      let ddtext = $(dt).next().text();
      if (dttext == 'IBAN') {
        iban = ddtext;
      } else if (dttext == 'Bank code (BIC/SWIFT)') {
        swift = ddtext;
      } else if (dttext == '送金額:') {
        srcCurrency = getCurrency(ddtext);
        srcAmount = prettyAmount(ddtext);
      } else if (dttext == '当社の手数料') {
        comission = prettyAmount(ddtext);
      } else if (dttext == '為替レート') {
        rate = ddtext;
      } else if (dttext == '受取額') {
        dstCurrency = getCurrency(ddtext);
        dstAmount = prettyAmount(ddtext);
      } else if (dttext == '取引番号') {
        code = ddtext;
      }
    });
  });
  return [
    '',
    '* (' + code + ') ' + payee,
    '    Assets:Wire:Wise                       -' + srcAmount,
    '    Expenses:Commissions                        ' + comission + ' ; Payee: Wise.com',
    '    Assets:Wire:BCGE                        ' + dstAmount + ' @ (1/' + rate + ' ' + srcCurrency + ')',
  ].join('\n');
}

class Post {
  constructor(account, amount, converted=null) {
    this.account = account;
    this.amount = amount;
    this.converted = converted;
  }
  
  print() {
    var res = "    " + this.account + "        " + this.amount;
    if (this.converted != null) {
      res += " @@ " + this.converted;
    }
    return res;
  }
}

function runDebit(node) {
  var date;
  var code;
  var posts = [];
  var comments = [];
  let payee = getPayee(node).replace(/^場所: /, '');
  node.find('.css-1d1duka').each(function(i, detail) {
    $(detail).find('dl').each(function(i, dl) {
      $(dl).css('background-color', 'red');
        var amount = null;
        var commission = null;
        var converted = null;
        $(dl).find('dt').each(function(i, dt) {
        let dttext = $(dt).text();
        let ddtext = $(dt).next().text();
        if (dttext == "取引日") {
          let match = /(\d+)年(\d+)月(\d+)日/.exec(ddtext);
          if (match) {
            var m = match[2];
            var d = match[3];
            if (m.length == 1) {
              m = '0' + m;
            }
            if (d.length == 1) {
              d = '0' + d;
            }
            date = match[1] + '/' + m + '/' + d;
          } else {
            console.warning('unexpected date format: ' + ddtext);
          }
        } else if (dttext == '取引場所') {
          comments.push('place: ' + ddtext);
        } else if (dttext == '支払額') {
          posts.push(new Post('Expenses:???', prettyAmount(ddtext)));
        } else if (dttext == '支払い額') {
          amount = prettyAmount(ddtext);
        } else if (dttext == '当社の手数料') {
          commission = prettyAmount(ddtext);
        } else if (dttext == '両替された通貨') {
          converted = prettyAmount(ddtext);
        } else if (dttext == '為替レート') {
          comments.push('rate: ' + ddtext);
        }
      });
      if (amount != null) {
        if (commission == null) {
          posts.push(new Post('Assets:Banks:Wise', '-'+amount));
        } else {
          posts.push(new Post('Assets:Banks:Wise', '-'+amount));
          posts.push(new Post('Expenses:Commissions', commission));
        }
      }
    });
    let codeBox = $(detail).find('dl + span');
    if (codeBox && codeBox.length >= 1) {
      code = codeBox.text().replace(/^取引番号 /, '');
    }
  });
  var lines = ['', date + ' * (' + code + ') ' + payee];
  posts.forEach(post => lines.push(post.print()));
  comments.forEach(comment => lines.push('    ; ' + comment));
  lines.push('');
  return lines.join('\n');
}

function getCurrency(x) {
  let match = /[0-9,]+(?:\.[0-9]+)? ([A-Z]+)/.exec(x);
  return match[1];
}

function prettyAmount(x) {
  let match = /([0-9,]+)(\.[0-9]+)? ([A-Z]+)/.exec(x);
  if (match[3] == "JPY") {
    return x;
  }
  if (match[2]) {
    return x;
  }
  return match[1]+ ".00 " + match[3];
}

window.addEventListener('load', init, false);

function init() {
  waitForKeyElements("#activity-details-view-panel-0", handleDetailsView);
  waitForKeyElements("#activity-details-view-panel-1", handleDetailsView);
};