frontend/src/lib/settings.ts

import type { BubbleStyle, SpriteForm } from "../ui/Sprite";
import { DEFAULT_KOKORO_VOICE, type VoiceEngine, type VoiceMode } from "./voice";

export type Theme = "terrarium" | "candlelight" | "nocturne";
export type NotifyStyle = "adaptive" | "bubble" | "toast" | "interrupt";
// off: never. ondemand: only the "Look around" button. ambient: auto, on a slow
// timer, paused when idle/hidden so the cloud GPU scales to zero (cost-safe).
export type VisionMode = "off" | "ondemand" | "ambient";

/** Ambient capture interval. Doesn't change cloud cost much (GPU stays warm
 *  while active regardless) — idle-off is the real saving — but a slower cadence
 *  is gentler and plenty for a screen that changes on human timescales. */
export const AMBIENT_INTERVAL_MS = 45_000;

export interface Settings {
  theme: Theme;
  accent: string;
  form: SpriteForm;
  /** 0..100 — how often Puck wanders and how dense events are. */
  presence: number;
  mischief: number;
  /** Comment typography: fairy serif, plain UI, or handwriting. */
  voice: BubbleStyle;
  voiceSound: VoiceMode;
  /** Which TTS engine: local neural (Kokoro) or the OS voices. */
  voiceEngine: VoiceEngine;
  /** Chosen OS (speechSynthesis) voice name; "" = auto-pick a soft english voice. */
  voiceName: string;
  /** Chosen Kokoro voice id (e.g. "af_heart", "am_puck"). */
  kokoroVoice: string;
  /** Chosen macOS `say` voice name (e.g. "Samantha"); "" = system default. */
  sayVoice: string;
  /** Speak the short reaction shouts ("NANI?!", "shipped!") aloud too. */
  speakShouts: boolean;
  notify: NotifyStyle;
  /** Mirror surfaced comments to OS notifications when the tab is hidden. */
  osNotify: boolean;
  /** How Puck uses his eyes (vision). Default on-demand: nothing runs unattended. */
  visionMode: VisionMode;
}

export const ACCENTS = ["#e7b85c", "#8fcf86", "#e58fa6", "#b89be6", "#6fc6d6"] as const;

export const defaultSettings = (): Settings => ({
  theme: "terrarium",
  accent: "#e7b85c",
  form: "mossling",
  presence: 62,
  mischief: 45,
  voice: "voice",
  voiceSound: "full", // audible by default (browser autoplay may need one click first)
  voiceEngine: "say", // Mac-native voice — works in the overlay and the browser demo alike
  voiceName: "",
  kokoroVoice: DEFAULT_KOKORO_VOICE,
  sayVoice: "Samantha",
  speakShouts: true,
  notify: "adaptive",
  osNotify: false,
  visionMode: "ondemand",
});

/** Readable ink color for text on top of the accent. */
export function inkFor(hex: string): string {
  const h = hex.replace("#", "");
  const n = parseInt(h.length === 3 ? h.replace(/./g, (c) => c + c) : h, 16);
  const r = (n >> 16) & 255;
  const g = (n >> 8) & 255;
  const b = n & 255;
  return r * 299 + g * 587 + b * 114 > 150000 ? "#22180a" : "#fff7e8";
}