Bitcoin Forum

// ==UserScript==
// @name        bitcointalk merit
// @version     1.3
// @author      grue, minifrij, EcuaMobi, ETFbitcoin
// @source      https://github.com/grue0/bitcointalk-scripts/
// @source      https://bitcointalk.org/index.php?topic=2833350.0;0
// @description A very simple userscript that allows you to add merit without leaving the page
// @include     https://bitcointalk.org/index.php?topic=*
// @require     https://code.jquery.com/jquery-3.4.1.min.js
// @grant none
// ==/UserScript==

(() => {
  var sMerit, source_sMerit, check_onClick = false, oneClick_amount = [1, 2, 5, 10, 50]

  function check_sMerit(msgId){
    // Added by EcuaMobi
    $.post(
      "https://bitcointalk.org/index.php?action=merit;msg=29048068"
    ).then((data) => {
      sMerit = /You have <b>([0-9]+)<\/b> sendable/.exec(data)[1]
      source_sMerit = /The next ([0-9]+) merit you spend will come from your source/.exec(data)[1]
      show_popup(msgId)
    }).catch(() => sMerit = null)
  }

  function show_popup(msgId){
    if(sMerit!=null && source_sMerit==null) {
      $("#em-smerit-count" + msgId).html('<a href="https://bitcointalk.org/index.php?action=merit;msg='+msgId+'" target="_blank">Available:</a> <b>'+sMerit+'</b> &nbsp;&nbsp;&nbsp;')
    } else if (sMerit!=null && source_sMerit!=null) {
      $("#em-smerit-count" + msgId).html('<a href="https://bitcointalk.org/index.php?action=merit;msg='+msgId+'" target="_blank">Available (yours | source):</a> <b>'+sMerit+' | '+source_sMerit+'</b> &nbsp;&nbsp;&nbsp;')
    }else{
      $("#em-smerit-count" + msgId).html('<a href="https://bitcointalk.org/index.php?action=merit;msg='+msgId+'" target="_blank">Getting sMerit amount...</b> &nbsp;&nbsp;&nbsp;')
    }
    $("#grue-merit-popup" + msgId).toggle()
  }

  // get csrf token from the logout link
  let sc = $('td.maintab_back a[href*="index.php?action=logout;sesc="').attr("href");
  sc = /;sesc=(.*)/.exec(sc)[1];

  // Get remaining sMerit
  check_sMerit()

  // selector for the "+Merit" link
  $('td.td_headerandpost div[id^=ignmsgbttns] a[href*="index.php?action=merit;msg="]').each((i, e) => {
    const msgId = /msg=([0-9]+)/.exec(e.href)[1]

    let oneClick_html = `
      <div style="display:inline-block;">
        One-click send :
      </div>
    `
    oneClick_amount.forEach((amount) => {
      oneClick_html += `
        <form style="display:inline-block;">
          <input name="merits" value="` + amount + `" type="hidden"/>
          <input style="padding:0" class="oneClick" value="` + amount + `" type="submit">
        </form>
      `
    })

    const $popup = $(['<div id="grue-merit-popup' + msgId +'" class="grue-merit-popup" style="position: absolute; right: 40px; background-color: #ddd; font-size: 13px; padding: 8px;border-width: 1px;border-color: black;border-style: solid;">',
      oneClick_html,
      '  <hr>',
      '  <form>',
      '    <div>',
      '      Merit points: <input style="height:1em" size="6" name="merits" value="1" type="number" min="1" max="50"/>',
      '    </div>',
      '    <div style="margin-top: 6px; "><span id="em-smerit-count' + msgId +'" style="font-size:11px;" /> <input class="sendButton" value="Send" type="submit"></div>',
      '  </form>',
      '</div>'
    ].join("\n"))
    $popup.find("form").submit( (e) => {
      e.preventDefault()
      $popup.find('.sendButton')
        .prop("disabled", true)
        .val("Sending...")
      $popup.find('.oneClick')
        .prop("disabled", true)
      const merits = e.target.elements["merits"].value;

      $.post(
        "https://bitcointalk.org/index.php?action=merit",
        {merits, msgID: msgId, sc}
      ).then((data) => {
        //Error pages usually have this (rough heuristic)
        if(data.includes("<title>An Error Has Occurred!</title")) {
          throw "error"
        }
        //double check and see whether the post we merited was added to the list. Its msgId should be visible in the page source.
        if(data.includes("#msg" + msgId)) {
          alert("Merit added.")
          $("#grue-merit-popup" + msgId).toggle(false)
          if(!check_onClick){
            if(source_sMerit!=null && source_sMerit-merits>=0){
              source_sMerit -= merits
            }else if(source_sMerit!=null && source_sMerit>0){
              sMerit -= merits-source_sMerit
              source_sMerit = 0
            }else if(sMerit!=null){
              sMerit -= merits
            }
          }
          return
        }
        alert("Server response indeterminate.")
      })
      .catch(() => alert("Failed to add merit."))
      .always(() => {
        $popup.find('.sendButton')
          .prop("disabled", false)
          .val("Send")
        $popup.find('.oneClick')
          .prop("disabled", true)
      })
    })
    $popup.insertAfter(e)

    $(e).click((e) => {
      e.preventDefault()
      if(check_onClick){
        check_sMerit(msgId)
      }else{
        show_popup(msgId)
      }
    })
  })
  $(".grue-merit-popup").toggle(false)
})()