// src/mood.ts
/**
* Duck mood state machine.
* The duck gets progressively more annoyed the longer you talk to it.
*/
import type { DuckMood } from './types.js';
import { MOOD_EMOJI, MOOD_DESCRIPTIONS } from './types.js';
/** Mood progression order */
const MOOD_ORDER: DuckMood[] = [
'zen',
'interested',
'skeptical',
'annoyed',
'exasperated',
'rage',
];
/** How many messages before mood escalates */
const ESCALATION_THRESHOLDS = {
zen: 3, // After 3 messages, move to interested
interested: 5, // After 5 more, move to skeptical
skeptical: 4, // After 4 more, move to annoyed
annoyed: 3, // After 3 more, move to exasperated
exasperated: 2, // After 2 more, RAGE
rage: Infinity, // Can't escalate further
};
/** Mood state manager */
export class MoodEngine {
private currentMood: DuckMood = 'zen';
private messagesSinceMoodChange: number = 0;
private totalMessages: number = 0;
/**
* Get current mood.
*/
getMood(): DuckMood {
return this.currentMood;
}
/**
* Get current mood index (0-5) for annoyance calculations.
*/
getMoodIndex(): number {
return MOOD_ORDER.indexOf(this.currentMood);
}
/**
* Get mood display string with emoji.
*/
getMoodDisplay(): string {
return `${MOOD_EMOJI[this.currentMood]} ${MOOD_DESCRIPTIONS[this.currentMood]}`;
}
/**
* Process a user message and potentially escalate mood.
* Returns whether the mood changed.
*/
processMessage(message: string): boolean {
this.totalMessages++;
this.messagesSinceMoodChange++;
// Certain keywords immediately escalate mood
if (this.containsTriggerWords(message)) {
return this.escalateMood();
}
// Check if we've hit the threshold
const threshold = ESCALATION_THRESHOLDS[this.currentMood];
if (this.messagesSinceMoodChange >= threshold) {
return this.escalateMood();
}
return false;
}
/**
* Check for words that immediately annoy the duck.
*/
private containsTriggerWords(message: string): boolean {
const triggers = [
'it worked before',
'it was working',
'i didn\'t change anything',
'works on my machine',
'just works',
'should be easy',
'simple fix',
'quick question',
'works in production',
'works locally',
];
const lower = message.toLowerCase();
return triggers.some(t => lower.includes(t));
}
/**
* Escalate to next mood level.
*/
private escalateMood(): boolean {
const currentIndex = MOOD_ORDER.indexOf(this.currentMood);
if (currentIndex < MOOD_ORDER.length - 1) {
this.currentMood = MOOD_ORDER[currentIndex + 1];
this.messagesSinceMoodChange = 0;
return true;
}
return false;
}
/**
* Calm the duck down one level (rare, for nice messages).
*/
calmDown(): boolean {
const currentIndex = MOOD_ORDER.indexOf(this.currentMood);
if (currentIndex > 0) {
this.currentMood = MOOD_ORDER[currentIndex - 1];
this.messagesSinceMoodChange = 0;
return true;
}
return false;
}
/**
* Reset mood to zen (for new sessions).
*/
reset(): void {
this.currentMood = 'zen';
this.messagesSinceMoodChange = 0;
this.totalMessages = 0;
}
/**
* Get statistics for summary.
*/
getStats(): { totalMessages: number; finalMood: DuckMood; moodIndex: number } {
return {
totalMessages: this.totalMessages,
finalMood: this.currentMood,
moodIndex: this.getMoodIndex(),
};
}
}
// Singleton instance for convenience
export const duckMood = new MoodEngine();
