"use strict";

(function (global) {
  function hashString(value = "") {
    const str = String(value || "");
    let h = 2166136261;
    for (let i = 0; i < str.length; i++) {
      h ^= str.charCodeAt(i);
      h = Math.imul(h, 16777619);
    }
    return (h >>> 0).toString(36);
  }

  function createWorldSeed() {
    const cryptoObj = global.crypto;
    if (cryptoObj?.getRandomValues) {
      const buf = new Uint32Array(2);
      cryptoObj.getRandomValues(buf);
      return `w${buf[0].toString(36)}${buf[1].toString(36)}`;
    }
    return `w${Date.now().toString(36)}${Math.floor(Math.random() * 0xffffffff).toString(36)}`;
  }

  function ensureWorldSeed(worldRef = null) {
    if (!worldRef) return createWorldSeed();
    if (!worldRef.worldSeed) worldRef.worldSeed = createWorldSeed();
    if (!Number.isFinite(worldRef.birthSerial)) worldRef.birthSerial = 0;
    return worldRef.worldSeed;
  }

  function childSeed(worldSeed = "", serial = 0, parentSeeds = []) {
    const safeSerial = Math.max(0, Math.floor(Number(serial) || 0));
    const parents = (parentSeeds || []).filter(Boolean).join("+");
    // \u533a\u5207\u308a\u3092\u5165\u308c\u3066\u304a\u304f\u3068\u3001\u5c06\u6765 birthSeed \u81ea\u4f53\u3092\u4fdd\u5b58\u3057\u306a\u3044\u5f62\u5f0f\u3078\u79fb\u308b\u6642\u306b
    // birthSerial \u3092\u5b89\u5168\u306b\u53d6\u308a\u51fa\u305b\u308b\u3002
    return `b${safeSerial.toString(36)}_${hashString(`${worldSeed}|${safeSerial}|${parents}`)}`;
  }

  function serialFromBirthSeed(seed = "") {
    const match = /^b([0-9a-z]+)_/i.exec(String(seed || ""));
    if (!match) return 0;
    const n = parseInt(match[1], 36);
    return Number.isFinite(n) && n > 0 ? n : 0;
  }

  function prepareAddOptions(worldRef, opts = {}) {
    const next = { ...(opts || {}) };
    ensureWorldSeed(worldRef);
    if (!next.birthSeed) {
      worldRef.birthSerial = Math.max(0, Number(worldRef.birthSerial) || 0) + 1;
      next.birthSerial = worldRef.birthSerial;
      const parentSeeds = Array.isArray(next.seedParents)
        ? next.seedParents.map(p => typeof p === "string" ? p : (p?.birthSeed || p?.familyKey || p?.id || ""))
        : [];
      next.birthSeed = childSeed(worldRef.worldSeed, next.birthSerial, parentSeeds);
    } else {
      if (!Number.isFinite(next.birthSerial)) {
        const parsedSerial = serialFromBirthSeed(next.birthSeed);
        if (parsedSerial > 0) next.birthSerial = parsedSerial;
      }
      if (Number.isFinite(next.birthSerial)) {
        worldRef.birthSerial = Math.max(Number(worldRef.birthSerial) || 0, Number(next.birthSerial) || 0);
      }
    }
    if (!next.familyKey) next.familyKey = next.birthSeed;
    return next;
  }

  function seedUnit(seed = "", key = "") {
    return stableUnit(seed, key);
  }

  function seedPick(seed = "", key = "", list = []) {
    if (!list?.length) return null;
    const i = Math.min(list.length - 1, Math.floor(seedUnit(seed, key) * list.length));
    return list[i];
  }

  function seededName(seed = "") {
    const len = 2 + Math.floor(seedUnit(seed, "name.len") * 6); // 2..7
    const hasStop = len >= 2 && seedUnit(seed, "name.stop") < 0.30;
    const middleLen = Math.max(0, len - 1 - (hasStop ? 1 : 0));
    let name = "\u306f";
    for (let i = 0; i < middleLen; i++) name += seedUnit(seed, `name.u.${i}`) < 0.64 ? "\u3046" : "\u3045";
    if (hasStop) name += "\u3063";
    return name;
  }

  function seededType(seed = "") {
    const list = typeof spawnableSprites === "function" ? spawnableSprites().map(s => s.id).filter(Boolean) : ["smile"];
    return seedPick(seed, "sprite.base", list) || "smile";
  }

  function seededGoodMode(seed = "") {
    const list = typeof displayNormalSprites === "function" ? displayNormalSprites() : ["smile", "jito", "normal_smirk"];
    return seedPick(seed, "sprite.good", list) || "smile";
  }

  function seededPersonality(seed = "") {
    if (typeof randomBirthPersonality === "function") return randomBirthPersonality(seed);
    return { aggression: 0, openness: 0, sociability: 0, neuroticism: 0 };
  }

  function seededGenetics(seed = "") {
    if (typeof normalizeGenetics === "function") return normalizeGenetics(null, seed);
    return { lifeSpanMul: 1, attackMul: 1, speedMul: 1, sizeMul: 1, temperatureOffset: 0 };
  }

  function seededAdultScale(seed = "", genetics = null) {
    if (typeof adultScaleFromGenetics === "function") return adultScaleFromGenetics(seed, genetics);
    return 0.28;
  }

  function seededLifeSpan(seed = "", genetics = null) {
    const g = genetics || seededGenetics(seed);
    const base = 1400 + seedUnit(seed, "life.span") * 800;
    let span = base * (g.lifeSpanMul || 1);
    if (span < 900) span = (1200 + seedUnit(seed, "life.span.low") * 600) * (g.lifeSpanMul || 1);
    return span;
  }

  function birthProfile(seed = "", opts = {}) {
    const zunchiSlave = Boolean(opts.isZunchiSlave || opts.zunchiSlaveLocked);
    const genetics = opts.genetics && typeof normalizeGenetics === "function" ? normalizeGenetics(opts.genetics, seed) : seededGenetics(seed);
    const personality = zunchiSlave && typeof zunchiSlavePersonalityValue === "function" ? zunchiSlavePersonalityValue() : seededPersonality(seed);
    return {
      birthSeed: seed,
      name: zunchiSlave ? "\u305a\u3093\u3061\u3069\u308c\u3044" : seededName(seed),
      type: zunchiSlave ? "zunchi_slave" : seededType(seed),
      goodMode: zunchiSlave ? "zunchi_slave" : seededGoodMode(seed),
      birthPersonality: personality,
      genetics,
      adultScale: seededAdultScale(seed, genetics),
      lifeSpan: seededLifeSpan(seed, genetics),
    };
  }

  function personalityArray(seed = "") {
    const p = birthProfile(seed).birthPersonality || {};
    return ["aggression", "openness", "sociability", "neuroticism"].map(k => Math.round(((Number(p[k]) || 0) + 1) * 100));
  }

  global.TarinaiSeedFactory = Object.freeze({
    createWorldSeed,
    ensureWorldSeed,
    childSeed,
    serialFromBirthSeed,
    prepareAddOptions,
    birthProfile,
    personalityArray,
  });
})(typeof window !== "undefined" ? window : globalThis);