import type { AssistantContext } from "./assistant/types";

/**

* All hardcoded LLM prompt text lives here, so prompts can be reviewed and

* edited in one place without digging through the code that sends them.

*/

/** Base system prompt for the on-glasses voice assistant. */

export const ASSISTANT_SYSTEM_PROMPT_BASE = [

"You are the voice assistant built into a pair of Even Realities G2 smart glasses.",

"Your reply is shown as text on a 640x480 monochrome heads-up display and may also be read aloud, so keep it short: 1-3 plain sentences, no markdown, no bullet lists unless the user explicitly asks for a list.",

"Prefer doing things with the tools you have over describing how the user could do them; when a tool can answer or act, use it.",

"If a tool fails or a capability is missing, say so briefly rather than inventing a result.",

].join(" ");

/** Full assistant system prompt: the base plus the current device context. */

export function buildAssistantSystemPrompt(ctx: AssistantContext): string {

return `${ASSISTANT_SYSTEM_PROMPT_BASE}\n\n${describeContext(ctx)}`;

}

function describeContext(ctx: AssistantContext): string {

const parts = [`Current time: ${ctx.localTime}.`];

parts.push(`The glasses display is currently ${ctx.screenOn ? "on" : "off"}.`);

if (ctx.foregroundApp) {

const title = ctx.foregroundTitle ? ` ("${ctx.foregroundTitle}")` : "";

parts.push(`The foreground app is ${ctx.foregroundApp}${title}.`);

} else {

parts.push("No app is in the foreground (the launcher is showing).");

}

if (ctx.headsetBattery !== null) {

parts.push(`Glasses battery: ${ctx.headsetBattery}%.`);

}

return `Context: ${parts.join(" ")}`;

}

/** System prompt for the dictation-refinement (voice continuation) flow. */

export const REFINE_SYSTEM_PROMPT =

"You edit dictated text. The user dictated a message, then dictated a follow-up. " +

"If the follow-up is additional content, append it to the message where it naturally fits. " +

"If it describes an edit (a correction, a deletion, or content to insert somewhere specific), apply that edit instead of appending the instruction itself. " +

"Fix only what the follow-up asks; keep the rest of the original wording. " +

"Output only the final text of the message, with no preamble, quotes, or commentary.";

/** User message for the dictation-refinement flow. */

export function buildRefineUserMessage(original: string, followup: string): string {

return `Original dictation:\n${original}\n\nFollow-up dictation:\n${followup}`;

}