/**
 * System-agnostic map population.
 *
 * Works in ANY Foundry world: never assumes a game system, actors, or
 * compendia. Labelled rooms/features become GM map Notes; optional ambient
 * lights add atmosphere. Lightweight by design.
 */

const MODULE_ID = "mapwright";
const BOOK_ICON = "icons/svg/book.svg";

function note(x, y, text, gs, kind) {
  return {
    x: Math.round(x * gs),
    y: Math.round(y * gs),
    text,
    texture: { src: BOOK_ICON },
    iconSize: Math.max(32, Math.round(gs * 0.5)),
    fontSize: Math.max(16, Math.round(gs * 0.24)),
    global: false,
    flags: { [MODULE_ID]: { generated: true, kind } }
  };
}

/** Notes for each labelled building room. */
export function buildRoomNotes(layout, gs) {
  const out = [];
  for (const room of layout.rooms) {
    if (!room.label) continue;
    out.push(note(room.cx, room.cy, room.locked ? `${room.label} (locked)` : room.label, gs, "room-note"));
  }
  return out;
}

/** Notes for cave/outdoor feature points ({x,y,label}). */
export function buildFeatureNotes(features, gs) {
  return (features ?? []).map((f) => note(f.x, f.y, f.label, gs, "feature-note"));
}

/** Soft ambient light per building room. */
export function buildRoomLights(layout, gs, subtype) {
  return layout.rooms.map((room) => ({
    x: Math.round(room.cx * gs),
    y: Math.round(room.cy * gs),
    walls: true,
    vision: false,
    config: {
      dim: Math.round(Math.max(room.w, room.h) * gs * 0.9),
      bright: Math.round(Math.max(room.w, room.h) * gs * 0.35),
      color: subtype === "fantasy" ? "#ffb46b" : "#fdf6e3",
      luminosity: 0.35,
      alpha: 0.35
    },
    flags: { [MODULE_ID]: { generated: true } }
  }));
}

/** A warm torch light at each cave feature point. */
export function buildFeatureLights(features, gs, animate = true) {
  return (features ?? []).map((f) => ({
    x: Math.round(f.x * gs),
    y: Math.round(f.y * gs),
    walls: true,
    vision: false,
    config: {
      dim: Math.round(gs * 4),
      bright: Math.round(gs * 1.6),
      color: "#ff9d4a",
      luminosity: 0.4,
      alpha: 0.3,
      animation: animate ? { type: "torch", speed: 3, intensity: 4 } : {}
    },
    flags: { [MODULE_ID]: { generated: true } }
  }));
}