// Public status page client JS:
//   Bar tooltips - hover any heartbeat bar to see the bucket time range and uptime breakdown.
// Expand/collapse is pure CSS (hidden checkbox + :checked sibling selector), no JS needed.
// Reads its config from window.PINGQL_PAGE.
(function () {
  var cfg = window.PINGQL_PAGE || {};
  var barFrequency = cfg.bar_frequency || "daily";

  // ── Bar tooltips ──────────────────────────────────────────────────────
  var tooltip = document.getElementById("bar-tooltip");
  if (!tooltip) return;

  var bucketSpanMs = (barFrequency === "hourly") ? 3600 * 1000 : 86400 * 1000;
  function fmtBucketRange(startIso) {
    var start = new Date(startIso);
    var end   = new Date(start.getTime() + bucketSpanMs);
    var dateOpts = { month: "short", day: "numeric" };
    var timeOpts = { hour: "2-digit", minute: "2-digit" };
    if (barFrequency === "hourly") {
      return start.toLocaleDateString(undefined, dateOpts) + ", " +
             start.toLocaleTimeString(undefined, timeOpts) + " - " +
             end.toLocaleTimeString(undefined, timeOpts);
    }
    return start.toLocaleDateString(undefined, { weekday: "short", month: "short", day: "numeric" });
  }
  function uptimeBand(p) {
    if (p == null) return "";
    if (p >= 99.9) return "good";
    if (p >= 99.0) return "warn";
    return "bad";
  }

  function showTooltipForBar(bar) {
    var total = parseInt(bar.getAttribute("data-total")   || "0", 10);
    var up    = parseInt(bar.getAttribute("data-up")      || "0", 10);
    var start = bar.getAttribute("data-start");
    var latRaw = bar.getAttribute("data-latency");
    var lat   = latRaw == null ? null : parseInt(latRaw, 10);
    if (!start) return;
    // Full precision pct so the formatter can decide. Anything below 100% gets
    // 2 truncated (not rounded) decimals - same rule as the page-level uptime
    // numbers, so a bucket with one failed check never displays as "100%".
    var pct = total > 0 ? (100 * up / total) : null;
    var pctText;
    if (pct == null)        pctText = "-";
    else if (pct >= 100)    pctText = "100%";
    else                    pctText = (Math.floor(pct * 100) / 100).toFixed(2) + "%";
    var html = '<div class="head">' + fmtBucketRange(start) + "</div>";
    if (total > 0) {
      html += '<div class="row"><span>Checks</span><span>' + total + "</span></div>";
      html += '<div class="row"><span>Successful</span><span>' + up + "</span></div>";
      html += '<div class="row"><span>Uptime</span><span class="pct ' + uptimeBand(pct) + '">' + pctText + "</span></div>";
      if (lat != null) {
        html += '<div class="row"><span>Avg ping</span><span>' + lat + "ms</span></div>";
      }
    } else {
      html += '<div class="row"><span>No data</span><span>-</span></div>';
    }
    tooltip.innerHTML = html;
    tooltip.style.display = "block";
    var rect = bar.getBoundingClientRect();
    tooltip.style.left = (rect.left + rect.width / 2) + "px";
    tooltip.style.top  = rect.top + "px";
  }
  function hideTooltip() {
    tooltip.style.display = "none";
  }

  document.addEventListener("mouseover", function (e) {
    var bar = e.target && e.target.closest && e.target.closest(".bar");
    if (bar && bar.parentElement && bar.parentElement.classList.contains("bars")) {
      showTooltipForBar(bar);
    }
  });
  document.addEventListener("mouseout", function (e) {
    var bar = e.target && e.target.closest && e.target.closest(".bar");
    if (bar) hideTooltip();
  });
  window.addEventListener("scroll", hideTooltip, { passive: true });
})();