/* Grindscale web designer. © 2026 CyberMax. All rights reserved. */
(function () {
  "use strict";
  var CHECKOUT = "https://buy.polar.sh/polar_cl_Tp16Od5fWQJCW5rH0vizEbmv7rJYVD8swONwY0oJrLJ"; // Polar checkout link (revenue/packs/polar/grindscale/polar.json)
  var BUNDLE = "https://buy.polar.sh/polar_cl_0VZrsUmgkJkVTDpll5E0TTHLI9eloGE5pmDyS4D9P8L"; // Grindscale + Tintmoor + Nature Pack + Blipwren
  var CLASSROOM = "https://buy.polar.sh/polar_cl_PXmHmjrUz9SvLbg64KuHujuaLY00P3E87dP6b2dkMul";
  var B = window.Grindscale;
  var $ = function (s) { return document.querySelector(s); };
  var $$ = function (s) { return Array.prototype.slice.call(document.querySelectorAll(s)); };
  var KEYS = Object.keys(B.DEFAULTS);
  var CUSTOM = "Custom";
  var state = Object.assign({}, B.DEFAULTS);
  var chartKind = "xp";
  var fmt = new Intl.NumberFormat("en-US");
  function n1(v) { return v >= 100 ? fmt.format(Math.round(v)) : v.toFixed(1); }

  function fill() {
    var ps = $("#preset");
    [CUSTOM].concat(Object.keys(B.PRESETS)).forEach(function (p) { ps.add(new Option(p === CUSTOM ? "Custom (my values)" : p, p)); });
    B.CURVES.forEach(function (c) { $("#curve").add(new Option(c, c)); });
  }

  function readHash() {
    var h = location.hash.replace(/^#/, "");
    if (!/=/.test(h)) return false;
    var q = new URLSearchParams(h), any = false;
    KEYS.forEach(function (k) {
      if (!q.has(k)) return;
      var v = q.get(k);
      if (k === "curve") { if (B.CURVES.indexOf(v) >= 0) { state.curve = v; any = true; } }
      else if (isFinite(+v) && v !== "") { state[k] = +v; any = true; }
    });
    return any;
  }

  function toForm() {
    KEYS.forEach(function (k) { $("#" + k).value = state[k]; });
    $$("[data-for]").forEach(function (el) { el.hidden = el.getAttribute("data-for").split(" ").indexOf(state.curve) < 0; });
  }

  function clamp(v, lo, hi) { return Math.min(hi, Math.max(lo, v)); }
  function fromForm() {
    KEYS.forEach(function (k) {
      var v = $("#" + k).value;
      if (k === "curve") state.curve = v;
      else if (v !== "" && isFinite(+v)) state[k] = +v;
    });
    state.max_level = clamp(Math.round(state.max_level), 10, 100);
    state.round_to = Math.max(1, state.round_to);
    state.base_xp = Math.max(1, state.base_xp);
    state.xph_l1 = Math.max(1, state.xph_l1);
    state.target_hours = Math.max(0.1, state.target_hours);
    state.sessions_per_day = Math.max(0.1, state.sessions_per_day);
    state.minutes_per_session = Math.max(1, state.minutes_per_session);
  }

  function formulaText() {
    var s = state;
    return {
      Linear: "XP(L) = " + s.base_xp + " + " + s.linear_step + " × (L − 1)",
      Power: "XP(L) = " + s.base_xp + " × L^" + s.power_exp,
      Exponential: "XP(L) = " + s.base_xp + " × " + s.exp_growth + "^(L − 1)",
      Blend: "XP(L) = " + (1 - s.blend_weight).toFixed(2) + " × " + s.base_xp + " × L^" + s.power_exp + " + " + s.blend_weight + " × " + s.base_xp + " × " + s.exp_growth + "^(L − 1)"
    }[s.curve] + ", rounded to " + s.round_to + ".";
  }

  var rows = [];
  function render() {
    rows = B.xpTable(state);
    var sm = B.summary(state);
    $("#t-xp").textContent = fmt.format(sm.total_xp);
    $("#t-hours").textContent = n1(sm.total_hours);
    $("#t-ratio").textContent = Math.round(sm.ratio * 100) + "%";
    $("#t-days").textContent = n1(sm.days_to_max);
    var v = $("#verdict");
    v.textContent = sm.verdict + ". Level 10 after " + n1(sm.hours_to_10) + " h; halfway after " + n1(sm.hours_to_half) + " h.";
    v.className = "verdict " + (sm.ratio > 1.15 || sm.ratio < 0.85 ? "off" : "ok");
    $("#formula").textContent = formulaText();
    var tb = $("#levels tbody");
    tb.innerHTML = rows.map(function (r) {
      return "<tr><td>" + r.level + "</td><td>" + fmt.format(r.xp_to_next) + "</td><td>" + fmt.format(r.total_xp) + "</td><td>" +
        fmt.format(Math.round(r.xp_per_hour)) + "</td><td>" + r.hours.toFixed(2) + "</td><td>" + r.total_hours.toFixed(1) + "</td></tr>";
    }).join("");
    draw();
  }

  function css(name) { return getComputedStyle(document.documentElement).getPropertyValue(name).trim(); }
  function draw() {
    var c = $("#chart"), dpr = window.devicePixelRatio || 1;
    var w = c.clientWidth, h = c.clientHeight;
    c.width = Math.round(w * dpr); c.height = Math.round(h * dpr);
    var g = c.getContext("2d");
    g.setTransform(dpr, 0, 0, dpr, 0, 0);
    g.clearRect(0, 0, w, h);
    var data = rows.map(function (r) { return chartKind === "xp" ? r.xp_to_next : chartKind === "hours" ? r.total_hours : r.hours; });
    if (chartKind !== "hours") data = data.slice(0, -1);
    var maxV = Math.max.apply(null, data.concat([1e-9]));
    var L = 52, R = 10, T = 12, Bm = 26, pw = w - L - R, ph = h - T - Bm;
    g.font = "11px system-ui, sans-serif";
    g.fillStyle = css("--muted"); g.strokeStyle = css("--line"); g.lineWidth = 1;
    for (var i = 0; i <= 4; i++) {
      var y = T + ph - ph * i / 4;
      g.beginPath(); g.moveTo(L, y); g.lineTo(w - R, y); g.stroke();
      var val = maxV * i / 4;
      g.textAlign = "right"; g.fillText(val >= 1000 ? fmt.format(Math.round(val / 100) / 10) + "k" : (val >= 10 ? Math.round(val) : val.toFixed(1)), L - 6, y + 4);
    }
    var nPts = data.length, step = Math.max(1, Math.ceil(state.max_level / 10));
    g.textAlign = "center";
    for (var lv = 1; lv <= nPts; lv += step) g.fillText(lv, L + (nPts > 1 ? pw * (lv - 1) / (nPts - 1) : 0), h - 8);
    if (target() && chartKind === "hours") {
      var ty = T + ph - ph * Math.min(1, state.target_hours / maxV);
      g.setLineDash([4, 4]); g.strokeStyle = css("--warn"); g.beginPath(); g.moveTo(L, ty); g.lineTo(w - R, ty); g.stroke(); g.setLineDash([]);
      g.fillStyle = css("--warn"); g.textAlign = "left"; g.fillText("target " + state.target_hours + " h", L + 4, ty - 4);
    }
    g.strokeStyle = css("--accent"); g.lineWidth = 2.5; g.beginPath();
    data.forEach(function (v, i) {
      var x = L + (nPts > 1 ? pw * i / (nPts - 1) : 0), y = T + ph - ph * v / maxV;
      if (i) g.lineTo(x, y); else g.moveTo(x, y);
    });
    g.stroke();
  }
  function target() { return state.target_hours > 0; }

  function update() { fromForm(); $("#preset").value = matchPreset(); toForm(); render(); }
  function matchPreset() {
    var names = Object.keys(B.PRESETS);
    for (var i = 0; i < names.length; i++) {
      var p = B.PRESETS[names[i]];
      if (KEYS.every(function (k) { return p[k] === state[k]; })) return names[i];
    }
    return CUSTOM;
  }

  function download(name, text, type) {
    var a = document.createElement("a");
    a.href = URL.createObjectURL(new Blob([text], { type: type }));
    a.download = name;
    document.body.appendChild(a); a.click(); a.remove();
    setTimeout(function () { URL.revokeObjectURL(a.href); }, 2000);
  }
  function copy(text, what) {
    var done = function () { toast(what + " copied"); };
    if (navigator.clipboard && window.isSecureContext) navigator.clipboard.writeText(text).then(done, function () { fallback(text); done(); });
    else { fallback(text); done(); }
  }
  function fallback(text) {
    var t = document.createElement("textarea"); t.value = text; t.style.position = "fixed"; t.style.opacity = "0";
    document.body.appendChild(t); t.select(); try { document.execCommand("copy"); } catch (e) { /* ignore */ } t.remove();
  }
  var toastTimer;
  function toast(msg) {
    var t = $("#toast"); t.textContent = msg; t.classList.add("show");
    clearTimeout(toastTimer); toastTimer = setTimeout(function () { t.classList.remove("show"); }, 2400);
  }
  function arr() { return rows.map(function (r) { return r.xp_to_next; }).join(", "); }
  function json() {
    return JSON.stringify({ generator: "Grindscale by CyberMax", settings: state, levels: rows.map(function (r) {
      return { level: r.level, xp_to_next: r.xp_to_next, total_xp: r.total_xp, xp_per_hour: B.xround(r.xp_per_hour, 2) };
    }) }, null, 1);
  }
  function gd() {
    return "# XP needed to go from level i+1 to i+2 (index 0 = level 1). Made with Grindscale by CyberMax.\n" +
      "const XP_TO_NEXT: Array[int] = [" + arr() + "]\n\n" +
      "static func level_for_xp(total_xp: int) -> int:\n\tvar lv := 1\n\tfor need in XP_TO_NEXT:\n\t\tif need <= 0 or total_xp < need:\n\t\t\tbreak\n\t\ttotal_xp -= need\n\t\tlv += 1\n\treturn lv\n";
  }
  function cs() {
    return "// XP needed to go from level i+1 to i+2 (index 0 = level 1). Made with Grindscale by CyberMax.\n" +
      "public static class XpTable\n{\n    public static readonly long[] XpToNext = { " + arr() + " };\n\n" +
      "    public static int LevelForXp(long totalXp)\n    {\n        int level = 1;\n        foreach (var need in XpToNext)\n        {\n            if (need <= 0 || totalXp < need) break;\n            totalXp -= need;\n            level++;\n        }\n        return level;\n    }\n}\n";
  }
  function link() {
    var q = new URLSearchParams();
    KEYS.forEach(function (k) { q.set(k, state[k]); });
    return location.origin + location.pathname + "#" + q.toString();
  }

  // ----- drops -----
  var syncing = false;
  function drops(src) {
    if (syncing) return;
    syncing = true;
    var pct = +$("#d-chance").value, onein = +$("#d-onein").value;
    if (src === "onein" && onein >= 1) { pct = 100 / onein; $("#d-chance").value = +pct.toPrecision(6); }
    else if (pct > 0) $("#d-onein").value = +(100 / pct).toPrecision(6);
    syncing = false;
    var p = Math.min(1, Math.max(1e-7, pct / 100));
    var pity = Math.round(+$("#d-pity").value) || 0, rate = +$("#d-rate").value || 0, n = Math.max(1, Math.round(+$("#d-n").value || 1));
    var d = B.drop(p, pity > 0 ? pity : 0, rate);
    function cap(t) { return pity > 0 ? Math.min(t, pity) : t; }
    $("#d-50").textContent = fmt.format(cap(d.tries50));
    $("#d-90").textContent = fmt.format(cap(d.tries90));
    $("#d-99").textContent = fmt.format(cap(d.tries99));
    $("#d-exp").textContent = d.expected >= 100 ? fmt.format(Math.round(d.expected)) : d.expected.toFixed(1);
    $("#d-h90").textContent = rate > 0 ? n1(cap(d.tries90) / rate) : "–";
    $("#d-within").textContent = (d.within(n) * 100).toFixed(d.within(n) > 0.999 && d.within(n) < 1 ? 2 : 1) + "%";
  }

  function init() {
    fill();
    if (!readHash()) state = Object.assign({}, B.DEFAULTS);
    $("#preset").value = matchPreset();
    toForm();
    render();
    $("#preset").addEventListener("change", function () {
      var p = B.PRESETS[this.value];
      if (p) { state = Object.assign({}, p); toForm(); render(); }
    });
    KEYS.forEach(function (k) { $("#" + k).addEventListener(k === "curve" ? "change" : "input", update); });
    $$("[data-chart]").forEach(function (b) {
      b.addEventListener("click", function () {
        chartKind = b.getAttribute("data-chart");
        $$("[data-chart]").forEach(function (x) { x.classList.toggle("on", x === b); });
        draw();
      });
    });
    window.addEventListener("resize", draw);
    $("#dl-csv").addEventListener("click", function () { download("grindscale-xp-curve.csv", B.csv(state), "text/csv"); });
    $("#cp-json").addEventListener("click", function () { copy(json(), "JSON"); });
    $("#cp-gd").addEventListener("click", function () { copy(gd(), "GDScript"); });
    $("#cp-cs").addEventListener("click", function () { copy(cs(), "C#"); });
    $("#cp-link").addEventListener("click", function () { history.replaceState(null, "", link()); copy(link(), "Link"); });
    ["d-chance", "d-onein", "d-pity", "d-rate", "d-n"].forEach(function (id) {
      $("#" + id).addEventListener("input", function () { drops(id === "d-onein" ? "onein" : "chance"); });
    });
    drops("chance");
    var buy = $("#buy");
    $("#buy-bundle").href = BUNDLE; $("#buy-class").href = CLASSROOM;
    if (/^https:\/\//.test(CHECKOUT)) buy.href = CHECKOUT;
    else { buy.textContent = "Coming soon"; buy.removeAttribute("href"); buy.classList.add("ghost"); }
    if (/[?&]thanks=1/.test(location.search)) setTimeout(function () { toast("Thanks for your order! Your download link is in the Polar receipt email."); }, 800);
    window.__bb = { state: function () { return state; }, rows: function () { return rows; }, gd: gd, cs: cs, json: json };
  }
  init();
})();