import { toZonedTime } from 'date-fns-tz';
import logger from '../utils/logger.js';

class TimeBehavior {
  constructor(config) {
    this.config = config;
    this.timezone = config.schedule.timezone;

    this._activityPatterns = {
      earlyMorning: { intensity: 0.6 },
      morning: { intensity: 0.8 },
      midday: { intensity: 0.9 },
      afternoon: { intensity: 0.7 },
      evening: { intensity: 0.6 },
      night: { intensity: 0.4 },
      lateNight: { intensity: 0.3 },
    };

    this._moodPatterns = {
      earlyMorning: ['sleepy', 'slow-start', 'focused'],
      morning: ['energetic', 'productive', 'motivated'],
      midday: ['peak-performance', 'focused', 'creative'],
      afternoon: ['steady', 'methodical', 'collaborative'],
      evening: ['relaxed', 'exploring', 'experimenting'],
      night: ['deep-focus', 'creative', 'quiet'],
      lateNight: ['tired', 'wrapping-up', 'reflective'],
    };

    this._dayOfWeekEnergy = {
      0: 0.7,
      1: 0.85,
      2: 0.95,
      3: 0.9,
      4: 0.8,
      5: 0.6,
      6: 0.5,
    };
  }

  getCurrentPeriod(date = new Date()) {
    const hour = this._getLocalHour(date);

    if (hour >= 4 && hour < 7) return 'earlyMorning';
    if (hour >= 7 && hour < 11) return 'morning';
    if (hour >= 11 && hour < 14) return 'midday';
    if (hour >= 14 && hour < 17) return 'afternoon';
    if (hour >= 17 && hour < 20) return 'evening';
    if (hour >= 20 && hour < 23) return 'night';
    return 'lateNight';
  }

  getIntensity(date = new Date()) {
    const period = this.getCurrentPeriod(date);
    const pattern = this._activityPatterns[period];

    if (!pattern) return 0.5;

    const baseIntensity = pattern.intensity;
    const dayOfWeek = this._getLocalDay(date);
    const dayEnergy = this._dayOfWeekEnergy[dayOfWeek] || 0.7;

    const randomVariation = (Math.random() - 0.5) * 0.3;

    return Math.max(0.1, Math.min(1, baseIntensity * dayEnergy + randomVariation));
  }

  shouldAct(date = new Date()) {
    const intensity = this.getIntensity(date);
    return Math.random() < intensity;
  }

  getNextActionDelay(date = new Date()) {
    const intensity = this.getIntensity(date);
    const baseDelay = this.config.activity.minIntervalMinutes * 60 * 1000;
    const maxDelay = this.config.activity.maxIntervalMinutes * 60 * 1000;

    const delay = baseDelay + (maxDelay - baseDelay) * (1 - intensity) * Math.random();

    const humanVariation = 1 + (Math.random() - 0.5) * 0.6;
    return Math.floor(delay * humanVariation);
  }

  isWorkHours(date = new Date()) {
    return true;
  }

  isLunchTime(date = new Date()) {
    return false;
  }

  isWeekend(date = new Date()) {
    return false;
  }

  getNextWorkTime(date = new Date()) {
    return date;
  }

  getDayOfWeekName(date = new Date()) {
    const localTime = toZonedTime(date, this.timezone);
    const days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
    return days[localTime.getDay()];
  }

  getMood(date = new Date()) {
    const period = this.getCurrentPeriod(date);
    const periodMoods = this._moodPatterns[period] || ['neutral'];
    return periodMoods[Math.floor(Math.random() * periodMoods.length)];
  }

  getDayEnergy(date = new Date()) {
    const dayOfWeek = this._getLocalDay(date);
    return this._dayOfWeekEnergy[dayOfWeek] || 0.7;
  }

  _getLocalHour(date) {
    const localTime = toZonedTime(date, this.timezone);
    return localTime.getHours();
  }

  _getLocalDay(date) {
    const localTime = toZonedTime(date, this.timezone);
    return localTime.getDay();
  }
}

export default TimeBehavior;