"use strict";

// Layer: entity-runtime/tarinai/update-system
// Owns local family/friend/grass/nest comfort environment effects.
(function (global) {
  function parasolFootprint(item = null) {
    if (!item || item.dead || item.type !== "rain_shelter") return null;
    const r = Math.max(30, Number(item.r || 50) || 50);
    // The pole foot is the visual and physical center of the shade.
    return {
      centerX: Number(item.x || 0),
      centerY: Number(item.y || 0) + r * 0.84,
      radiusX: r * 1.58,
      radiusY: r * 0.68,
    };
  }

  function parasolRange(item = null) {
    return parasolFootprint(item)?.radiusX || 0;
  }

  function parasolContains(item = null, x = 0, y = 0) {
    const footprint = parasolFootprint(item);
    if (!footprint) return false;
    const nx = (Number(x || 0) - footprint.centerX) / Math.max(1, footprint.radiusX);
    const ny = (Number(y || 0) - footprint.centerY) / Math.max(1, footprint.radiusY);
    return nx * nx + ny * ny <= 1;
  }

  function parasolAt(worldRef, x, y) {
    if (!worldRef) return null;
    const candidates = typeof worldRef.itemsOfType === "function"
      ? worldRef.itemsOfType("rain_shelter")
      : (worldRef.nearbyItems?.(x, y, 240) || []);
    let best = null;
    let bestRatio = Infinity;
    for (const item of candidates || []) {
      const footprint = parasolFootprint(item);
      if (!footprint) continue;
      const nx = (Number(x || 0) - footprint.centerX) / Math.max(1, footprint.radiusX);
      const ny = (Number(y || 0) - footprint.centerY) / Math.max(1, footprint.radiusY);
      const ratio = Math.sqrt(nx * nx + ny * ny);
      if (ratio <= 1 && ratio < bestRatio) { best = item; bestRatio = ratio; }
    }
    return best;
  }

  function enclosedShelterFor(worldRef, target = null) {
    if (!worldRef || !target?.insideNestBoxId) return null;
    const holder = worldRef.nestBoxById?.(target.insideNestBoxId)
      || (worldRef.items || []).find(item => item && !item.dead && item.id === target.insideNestBoxId)
      || null;
    return holder && (holder.type === "nest_box" || holder.type === "pipe") ? holder : null;
  }
  function shelterRange(item = null) { return parasolRange(item); }
  function shelterAt(worldRef, x, y, target = null) { return parasolAt(worldRef, x, y) || enclosedShelterFor(worldRef, target); }
  function isSheltered(worldRef, x, y, target = null) { return Boolean(shelterAt(worldRef, x, y, target)); }
  function blocksWeatherAt(worldRef, x, y, target = null) { return isSheltered(worldRef, x, y, target); }

  function updateBody(dt) {
    const parent = this.parentToFollow ? this.parentToFollow() : null;
    if (parent && dist(this, parent) < 96) {
      applyNeedRelief(this, { social: -dt * 4, safety: -dt * 2 });
      this.loneliness = clamp(this.loneliness - dt * 0.32, 0, 110);
      this.adjustPersonality("sociability", dt * 0.004 * this.sociabilityFriendScale(), "after staying near family.");
    }
    const friend = this.bestFriendLive ? this.bestFriendLive(FRIEND_AFFINITY_THRESHOLD, 92) : null;
    const friendCount = this.currentFriendCount ? this.currentFriendCount(FRIEND_AFFINITY_THRESHOLD, true) : 0;
    if (friend) {
      applyNeedRelief(this, { social: -dt * 3, fulfill: -dt * 1 });
      this.adjustPersonality("sociability", dt * 0.004 * this.sociabilityFriendScale(), "after staying near friends.");
    } else if (friendCount <= 0 && this.loneliness > 72 && this.age > 8) {
      this.adjustPersonality("sociability", -dt * 0.0018, "after having no friends.");
    }
    let grassComfort = 0;
    for (const it of this.world.nearbyItems(this.x, this.y, 105)) {
      if (it.type !== "grass" || it.dead) continue;
      const d = distXY(this.x, this.y, it.x, it.y);
      const lush = clamp((it.growth ?? it.amount / 120) * (it.health ?? 1), 0, 1.2);
      grassComfort += clamp(1 - d / 105, 0, 1) * lush;
    }
    let nestComfort = 0;
    for (const it of this.world.nearbyItems(this.x, this.y, 120)) {
      if (!it || it.dead || it.type !== "nest_box") continue;
      nestComfort += clamp(1 - distXY(this.x, this.y, it.x, it.y) / 120, 0, 1);
    }
    let rainShelterComfort = 0;
    const rainShelter = parasolAt(this.world, this.x, this.y);
    if (rainShelter && (this.world?.weather || "") === "light_rain") {
      const range = parasolRange(rainShelter);
      rainShelterComfort = clamp(1 - distXY(this.x, this.y, rainShelter.x, rainShelter.y) / range, 0.25, 1);
    }
    if (nestComfort > 0) applyNeedRelief(this, { sleep: -dt * Math.min(4, nestComfort * 3), safety: -dt * Math.min(5, nestComfort * 4) });
    if (rainShelterComfort > 0) {
      applyNeedRelief(this, { safety: -dt * Math.min(6, rainShelterComfort * 5), health: -dt * Math.min(3, rainShelterComfort * 2), fulfill: -dt * Math.min(2, rainShelterComfort * 1.2) });
      if (this.state === "panic") this.fearTimer = Math.max(0, this.fearTimer - dt * Math.min(0.35, rainShelterComfort * 0.08));
    }
    if (grassComfort > 0) {
      applyNeedRelief(this, { fulfill: -dt * Math.min(2, grassComfort * 0.5), safety: -dt * Math.min(1.5, grassComfort * 0.4) });
      if (this.state === "panic") this.fearTimer = Math.max(0, this.fearTimer - dt * Math.min(0.22, grassComfort * 0.06));
      if (this.shouldApplyPersonalityBehavior("neuroticism", 1)) this.affection += dt * Math.min(0.06, grassComfort * 0.012);
    }
  
  }

  function updateOne(tarinai, dt) {
    if (!tarinai || tarinai.dead) return false;
    updateBody.call(tarinai, dt);
    return true;
  }

  const parasolSystem = Object.freeze({ parasolFootprint, parasolRange, parasolContains, parasolAt, enclosedShelterFor, shelterRange, shelterAt, isSheltered, blocksWeatherAt });
  global.TarinaiParasolSystem = parasolSystem;
  global.TarinaiRainShelterSystem = parasolSystem;
  global.TarinaiLocalEnvironmentSystem = Object.freeze({
    updateOne,
  });
})(typeof window !== "undefined" ? window : globalThis);