Initial commit

app/ui-natal.js

@@ -0,0 +1,185 @@
+(function () {
+  const DAY_IN_MS = 24 * 60 * 60 * 1000;
+
+  let referenceDataCache = null;
+  let natalSummaryEl = null;
+
+  function getNatalSummaryEl() {
+    if (!natalSummaryEl) {
+      natalSummaryEl = document.getElementById("natal-chart-summary")
+        || document.getElementById("now-natal-summary");
+    }
+    return natalSummaryEl;
+  }
+
+  function parseMonthDay(monthDay) {
+    const [month, day] = String(monthDay || "").split("-").map(Number);
+    if (!Number.isFinite(month) || !Number.isFinite(day)) {
+      return null;
+    }
+    return { month, day };
+  }
+
+  function parseBirthDateAsLocalNoon(isoDate) {
+    const [year, month, day] = String(isoDate || "").split("-").map(Number);
+    if (!year || !month || !day) {
+      return null;
+    }
+    return new Date(year, month - 1, day, 12, 0, 0, 0);
+  }
+
+  function isDateInSign(date, sign) {
+    const start = parseMonthDay(sign?.start);
+    const end = parseMonthDay(sign?.end);
+    if (!start || !end) {
+      return false;
+    }
+
+    const month = date.getMonth() + 1;
+    const day = date.getDate();
+    const wrapsYear = start.month > end.month;
+
+    if (!wrapsYear) {
+      const afterStart = month > start.month || (month === start.month && day >= start.day);
+      const beforeEnd = month < end.month || (month === end.month && day <= end.day);
+      return afterStart && beforeEnd;
+    }
+
+    const afterStart = month > start.month || (month === start.month && day >= start.day);
+    const beforeEnd = month < end.month || (month === end.month && day <= end.day);
+    return afterStart || beforeEnd;
+  }
+
+  function getSignStartDate(date, sign) {
+    const start = parseMonthDay(sign?.start);
+    const end = parseMonthDay(sign?.end);
+    if (!start || !end) {
+      return null;
+    }
+
+    const wrapsYear = start.month > end.month;
+    const month = date.getMonth() + 1;
+    const day = date.getDate();
+    let year = date.getFullYear();
+
+    if (wrapsYear && (month < start.month || (month === start.month && day < start.day))) {
+      year -= 1;
+    }
+
+    return new Date(year, start.month - 1, start.day, 12, 0, 0, 0);
+  }
+
+  function getSunSignAnchor(referenceData, birthDate) {
+    const signs = Array.isArray(referenceData?.signs) ? referenceData.signs : [];
+    if (!signs.length || !birthDate) {
+      return null;
+    }
+
+    const sign = signs.find((candidate) => isDateInSign(birthDate, candidate)) || null;
+    if (!sign) {
+      return null;
+    }
+
+    return {
+      id: sign.id,
+      name: sign.name,
+      symbol: sign.symbol || "",
+      tarotMajorArcana: sign?.tarot?.majorArcana || ""
+    };
+  }
+
+  function getSunDecanAnchor(referenceData, signId, birthDate) {
+    if (!signId || !birthDate) {
+      return null;
+    }
+
+    const sign = (referenceData?.signs || []).find((entry) => entry.id === signId) || null;
+    if (!sign) {
+      return null;
+    }
+
+    const signStartDate = getSignStartDate(birthDate, sign);
+    if (!signStartDate) {
+      return null;
+    }
+
+    const daysSinceSignStart = Math.max(0, Math.floor((birthDate.getTime() - signStartDate.getTime()) / DAY_IN_MS));
+    const decanIndex = Math.max(1, Math.min(3, Math.floor(daysSinceSignStart / 10) + 1));
+
+    const decans = referenceData?.decansBySign?.[signId] || [];
+    const decan = decans.find((entry) => Number(entry.index) === decanIndex) || null;
+
+    return {
+      index: decanIndex,
+      tarotMinorArcana: decan?.tarotMinorArcana || ""
+    };
+  }
+
+  function buildNatalScaffoldSummary() {
+    const context = window.TarotNatal?.getContext?.() || null;
+    if (!context) {
+      return "Natal Chart Scaffold: unavailable";
+    }
+
+    const birthDate = context.birthDateParts?.isoDate
+      ? parseBirthDateAsLocalNoon(context.birthDateParts.isoDate)
+      : null;
+
+    if (!birthDate) {
+      return [
+        "Natal Chart Scaffold",
+        "Birth Date: --",
+        `Geo Anchor: ${context.latitude.toFixed(4)}, ${context.longitude.toFixed(4)}`,
+        "Sun Sign Anchor: --",
+        "Sun Decan Anchor: --",
+        "House Scaffold: 12 houses ready (Equal House placeholder), Ascendant/cusps pending birth time"
+      ].join("\n");
+    }
+
+    const sunSign = getSunSignAnchor(referenceDataCache, birthDate);
+    const sunDecan = getSunDecanAnchor(referenceDataCache, sunSign?.id, birthDate);
+
+    const signLabel = sunSign
+      ? `${sunSign.symbol} ${sunSign.name}${sunSign.tarotMajorArcana ? ` · ${sunSign.tarotMajorArcana}` : ""}`
+      : "--";
+
+    const decanLabel = sunDecan
+      ? `Decan ${sunDecan.index}${sunDecan.tarotMinorArcana ? ` · ${sunDecan.tarotMinorArcana}` : ""}`
+      : "--";
+
+    return [
+      "Natal Chart Scaffold",
+      `Birth Date: ${context.birthDateParts.isoDate} (${context.timeZone})`,
+      `Geo Anchor: ${context.latitude.toFixed(4)}, ${context.longitude.toFixed(4)}`,
+      `Sun Sign Anchor: ${signLabel}`,
+      `Sun Decan Anchor: ${decanLabel}`,
+      "House Scaffold: 12 houses ready (Equal House placeholder), Ascendant/cusps pending birth time"
+    ].join("\n");
+  }
+
+  function renderNatalSummary() {
+    const outputEl = getNatalSummaryEl();
+    if (!outputEl) {
+      return;
+    }
+
+    outputEl.textContent = buildNatalScaffoldSummary();
+  }
+
+  function ensureNatalPanel(referenceData) {
+    if (referenceData && typeof referenceData === "object") {
+      referenceDataCache = referenceData;
+    }
+
+    renderNatalSummary();
+  }
+
+  document.addEventListener("settings:updated", () => {
+    renderNatalSummary();
+  });
+
+  window.TarotNatalUi = {
+    ensureNatalPanel,
+    renderNatalSummary
+  };
+})();