"use strict";

// Layer: persistence/schema
// Owns stable save identifiers shared by snapshot_system.js and save_codec.js.
// Current-format save identifiers only.
(function (global) {
  const SNAPSHOT_VERSION = 18;
  const BINARY_SCHEMA_VERSION = 23;

  const FIELD_IDS = Object.freeze(["garden", "cage", "park"]);
  const GROUND_IDS = Object.freeze(["soil", "dirt", "concrete", "blanket", "foot_massage", "ice", "laboratory"]);
  const WEATHER_IDS = Object.freeze(["sunny", "cloudy", "light_rain"]);
  const MOOD_IDS = Object.freeze(["relaxed", "devastation", "crisis", "confusion", "fearful", "disease_spread", "weakened", "breeding", "happy", "overcrowded", "isolated"]);
  const STATE_IDS = Object.freeze(["idle", "sleep"]);
  const POWER_MODE_IDS = Object.freeze(["", "protein", "niteropu"]);
  const SIZE_MODE_IDS = Object.freeze(["", "giant_drug", "dwarf_drug"]);
  const LIFE_MODE_IDS = Object.freeze(["", "mercury"]);
  const PIN_STATE_IDS = Object.freeze(["loose", "lodged", "falling", "stuck"]);
  const STAGE_IDS = Object.freeze(["fresh", "aging", "old", "dry"]);
  const ITEM_TYPE_IDS = Object.freeze([
    "grass", "zunchi", "water", "grass_bed", "plushie", "nest_box", "duplicator", "sweet", "love_mochi", "fight_mochi",
    "sleep_drug", "laxative", "protein", "niteropu", "ammo", "mystery_drug", "mercury", "giant_drug", "dwarf_drug", "zunda_juice",
    "stone", "ball", "signboard", "ant_nest", "ant_corpse", "firecracker", "pushpin", "oshibyo", "fence_v", "fence_h",
    "splat", "food", "bed", "genkotsu", "bounce_fence", "bounce_fence_v", "gate_fence", "rotator", "reciprocator", "rope", "rod", "poison_block", "robot_cleaner", "dry_ice", "stove", "glass_wall", "slave_chain", "golden_crown", "fire", "flame_firecracker"
  ]);

  function typeIds(names) {
    return Object.freeze(new Set((names || []).map(name => ITEM_TYPE_IDS.indexOf(name)).filter(id => id >= 0)));
  }

  const STRUCTURE_TYPE_IDS = typeIds(["grass_bed", "plushie"]);
  const SERVING_FOOD_TYPE_IDS = typeIds(["sweet", "love_mochi", "fight_mochi", "sleep_drug", "laxative", "protein", "niteropu", "mystery_drug", "mercury", "giant_drug", "dwarf_drug", "zunda_juice", "food"]);
  const PIN_TYPE_IDS = typeIds(["pushpin", "oshibyo"]);
  const JSON_EXTRA_ITEM_TYPE_IDS = typeIds(["rotator", "poison_block", "reciprocator", "rope", "rod"]);
  const ROTATABLE_ITEM_TYPE_IDS = typeIds(["fence_v", "fence_h", "glass_wall", "bounce_fence", "bounce_fence_v", "gate_fence", "rotator", "poison_block", "reciprocator"]);

  function enumIndex(list, value, fallback = 0) {
    const i = list.indexOf(String(value ?? ""));
    return i >= 0 ? i : fallback;
  }

  function canonicalMoodId(value = "relaxed") {
    const id = String(value || "relaxed");
    return MOOD_IDS.includes(id) ? id : "relaxed";
  }

  function enumValue(list, index, fallback = "") {
    const i = Number(index) | 0;
    return list[i] ?? fallback ?? list[0] ?? "";
  }

  function moodValue(index, fallback = "relaxed") {
    const i = Number(index) | 0;
    return canonicalMoodId(MOOD_IDS[i] ?? fallback);
  }

  global.TarinaiSaveSchema = Object.freeze({
    SNAPSHOT_VERSION,
    BINARY_SCHEMA_VERSION,
    FIELD_IDS,
    GROUND_IDS,
    WEATHER_IDS,
    MOOD_IDS,
    canonicalMoodId,
    moodValue,
    STATE_IDS,
    POWER_MODE_IDS,
    SIZE_MODE_IDS,
    LIFE_MODE_IDS,
    PIN_STATE_IDS,
    STAGE_IDS,
    ITEM_TYPE_IDS,
    STRUCTURE_TYPE_IDS,
    SERVING_FOOD_TYPE_IDS,
    PIN_TYPE_IDS,
    JSON_EXTRA_ITEM_TYPE_IDS,
    ROTATABLE_ITEM_TYPE_IDS,
    enumIndex,
    enumValue,
  });
})(typeof window !== "undefined" ? window : globalThis);