// ===============================
// 3W Daily Production Report
// Shortcode: [daily_production_3w]
// ===============================
function daily_production_3w_shortcode() {

    ob_start();
    ?>

<div class="container" style="max-width:840px;margin:auto;background:#fff;border-radius:14px;padding:20px;box-shadow:0 10px 25px rgba(0,0,0,.08);font-family:Arial,Helvetica,sans-serif">
  <h2>Daily Production Report (3W – Topcoat / PTCED)</h2>

  <div style="font-size:12px;color:#777">
    First time: system starts from last data. Reset clears Today & MTD only — YTD stays.
  </div>

  <div style="margin:10px 0">
    <label>Date</label>
    <input type="date" id="date" style="width:100%;padding:8px;border-radius:8px;border:1px solid #ccc;margin-top:4px">
  </div>

  <!-- PTCED -->
  <div style="background:#f0f3ff;border-radius:12px;padding:14px">
    <strong>PTCED</strong>

    <div style="display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px">
      <div>
        <label>Today (CNG)</label>
        <input type="number" id="pt_cng" value="0">
      </div>
      <div>
        <label>Today (LPG)</label>
        <input type="number" id="pt_lpg" value="0">
      </div>
      <div>
        <label>MTD</label>
        <input type="number" id="pt_mtd" value="0">
      </div>
      <div>
        <label>YTD</label>
        <input type="number" id="pt_ytd" value="0">
      </div>
    </div>
  </div>

  <!-- TOPCOAT -->
  <div style="background:#f0f3ff;border-radius:12px;padding:14px;margin-top:14px">
    <strong>TOPCOAT</strong>

    <div style="display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px">
      <div>
        <label>Today (CNG)</label>
        <input type="number" id="tc_cng" value="0">
      </div>
      <div>
        <label>Today (LPG)</label>
        <input type="number" id="tc_lpg" value="0">
      </div>
      <div>
        <label>MTD</label>
        <input type="number" id="tc_mtd" value="0">
      </div>
      <div>
        <label>YTD</label>
        <input type="number" id="tc_ytd" value="0">
      </div>
    </div>

    <div style="margin:10px 0">
      <label>Delivered to Assembly</label>
      <input type="number" id="delivered" value="0">
    </div>
  </div>

  <!-- Buttons -->
  <div style="margin:14px 0">
    <button onclick="generate()" style="padding:10px 18px;border-radius:10px;border:0;background:#2e6bff;color:#fff;font-weight:700;cursor:pointer">
      Generate Report
    </button>

    <button onclick="resetData()" style="padding:10px 18px;border-radius:10px;border:0;background:#555;color:#fff;font-weight:700;cursor:pointer">
      Reset Saved Data
    </button>
  </div>

  <div id="report" style="background:#0f172a;color:#e5e7eb;border-radius:12px;padding:14px;white-space:pre-wrap;margin-top:14px"></div>
</div>

<script>
// ---------- Cookies ----------
function setCookie(name, value, days=365){
  const d = new Date();
  d.setTime(d.getTime() + (days*24*60*60*1000));
  document.cookie = name + "=" + encodeURIComponent(JSON.stringify(value)) + ";expires=" + d.toUTCString() + ";path=/";
}

function getCookie(name){
  const cookies = document.cookie.split(";").map(c => c.trim());
  for(const c of cookies){
    if(c.startsWith(name+"=")){
      try { return JSON.parse(decodeURIComponent(c.substring(name.length+1))); }
      catch(e){ return {}; }
    }
  }
  return {};
}

const KEY = "3w_topcoat_balances";

// ---------- Default previous day values ----------
const DEFAULTS = {
  pt_mtd: 61,
  pt_ytd: 21671,
  tc_mtd: 0,
  tc_ytd: 21610,
  delivered: 0
};

// ---------- Init ----------
document.getElementById("date").value = new Date().toISOString().split("T")[0];

(function preload(){
  const saved = getCookie(KEY);

  document.getElementById("pt_mtd").value = saved.pt_mtd ?? DEFAULTS.pt_mtd;
  document.getElementById("pt_ytd").value = saved.pt_ytd ?? DEFAULTS.pt_ytd;

  document.getElementById("tc_mtd").value = saved.tc_mtd ?? DEFAULTS.tc_mtd;
  document.getElementById("tc_ytd").value = saved.tc_ytd ?? DEFAULTS.tc_ytd;

  document.getElementById("delivered").value = saved.delivered ?? DEFAULTS.delivered;
})();

// ---------- Generate ----------
function generate(){
  const date = document.getElementById("date").value;

  const pt_cng = +document.getElementById("pt_cng").value;
  const pt_lpg = +document.getElementById("pt_lpg").value;

  const tc_cng = +document.getElementById("tc_cng").value;
  const tc_lpg = +document.getElementById("tc_lpg").value;

  let pt_mtd = +document.getElementById("pt_mtd").value;
  let pt_ytd = +document.getElementById("pt_ytd").value;

  let tc_mtd = +document.getElementById("tc_mtd").value;
  let tc_ytd = +document.getElementById("tc_ytd").value;

  const delivered = +document.getElementById("delivered").value;

  const new_pt_mtd = pt_mtd + pt_cng + pt_lpg;
  const new_pt_ytd = pt_ytd + pt_cng + pt_lpg;

  const new_tc_mtd = tc_mtd + tc_cng + tc_lpg;
  const new_tc_ytd = tc_ytd + tc_cng + tc_lpg;

  const text =
`${date}
PTCED
Today: ${pt_cng + pt_lpg} (CNG: ${pt_cng}, LPG: ${pt_lpg})
MTD: ${new_pt_mtd}
YTD: ${new_pt_ytd}

TOPCOAT
Today: ${tc_cng + tc_lpg} (CNG: ${tc_cng}, LPG: ${tc_lpg})
MTD: ${new_tc_mtd}
YTD: ${new_tc_ytd}

Delivered to Assembly: ${delivered}`;

  document.getElementById("report").textContent = text;

  setCookie(KEY, {
    pt_mtd: new_pt_mtd,
    pt_ytd: new_pt_ytd,
    tc_mtd: new_tc_mtd,
    tc_ytd: new_tc_ytd,
    delivered
  });
}

// ---------- Reset (Today + MTD only) ----------
function resetData(){
  if(!confirm("Reset today + MTD? (YTD will remain)")) return;

  const saved = getCookie(KEY);

  setCookie(KEY, {
    pt_mtd: DEFAULTS.pt_mtd,
    pt_ytd: saved.pt_ytd ?? DEFAULTS.pt_ytd,
    tc_mtd: DEFAULTS.tc_mtd,
    tc_ytd: saved.tc_ytd ?? DEFAULTS.tc_ytd,
    delivered: DEFAULTS.delivered
  });

  location.reload();
}
</script>

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