#!/usr/bin/env bun
/**
 * Optimal Days Finder
 *
 * Find the best days in a month (or year) for specific activities based on
 * Personal Day cycles. Perfect for scheduling launches, meetings, creative work, etc.
 *
 * Usage:
 *   bun optimal-days.ts --birthdate "5/13/1982" --month 11 --year 2025 --day 1
 *   bun optimal-days.ts --birthdate "5/13/1982" --month 11 --year 2025 --day 8 --activity "business"
 *   bun optimal-days.ts --birthdate "5/13/1982" --year 2025 --day 3  (find all Day 3s in the year)
 */

import { calculateCycles } from './cycles';
import { loadProfile } from './profile-manager';

// Parse command line arguments
const args = process.argv.slice(2);
let birthdate = '';
let profileId = '';
let month: number | null = null;
let year: number = new Date().getFullYear();
let targetDay: number | null = null;
let activity = '';

for (let i = 0; i < args.length; i++) {
  if ((args[i] === '--profile' || args[i] === '-p') && args[i + 1]) {
    profileId = args[i + 1];
    i++;
  } else if ((args[i] === '--birthdate' || args[i] === '-b') && args[i + 1]) {
    birthdate = args[i + 1];
    i++;
  } else if ((args[i] === '--month' || args[i] === '-m') && args[i + 1]) {
    month = parseInt(args[i + 1]);
    i++;
  } else if ((args[i] === '--year' || args[i] === '-y') && args[i + 1]) {
    year = parseInt(args[i + 1]);
    i++;
  } else if ((args[i] === '--day' || args[i] === '-d') && args[i + 1]) {
    targetDay = parseInt(args[i + 1]);
    i++;
  } else if ((args[i] === '--activity' || args[i] === '-a') && args[i + 1]) {
    activity = args[i + 1].toLowerCase();
    i++;
  } else if (args[i] === '--help' || args[i] === '-h') {
    console.log(`
Optimal Days Finder

Find the best days for specific activities based on Personal Day cycles.

USAGE:
  bun optimal-days.ts --profile <id> [OPTIONS]
  bun optimal-days.ts --birthdate "mm/dd/yyyy" [OPTIONS]

OPTIONS:
  -p, --profile ID        Use saved profile
  -b, --birthdate DATE    Your birthdate (mm/dd/yyyy) [required if no profile]
  -m, --month NUMBER      Month to search (1-12) [optional - searches whole year if omitted]
  -y, --year NUMBER       Year to search [default: current year]
  -d, --day NUMBER        Target Personal Day number (1-9, 11, 22, 33)
  -a, --activity NAME     Activity type (new, creative, business, study, etc.) [optional]
  -h, --help              Show this help message

EXAMPLES:
  # With profile
  bun optimal-days.ts --profile rob -m 11 -y 2025 -d 1
  bun optimal-days.ts --profile rob -y 2025 -d 8

  # With birthdate
  bun optimal-days.ts -b "5/13/1982" -m 11 -y 2025 -d 1
  bun optimal-days.ts -b "5/13/1982" -y 2025 -d 8
  bun optimal-days.ts -b "5/13/1982" -m 12 -y 2025 -a new
  bun optimal-days.ts -b "5/13/1982" -d 3

PERSONAL DAY MEANINGS:
  1 - New beginnings, initiatives, independence
  2 - Cooperation, partnerships, details
  3 - Creative expression, communication, social
  4 - Hard work, organization, foundation building
  5 - Change, freedom, marketing, variety
  6 - Service, responsibility, teaching, family
  7 - Introspection, study, spirituality, rest
  8 - Achievement, business, power, success
  9 - Completion, endings, release, letting go
  11 - Inspiration, intuition, spiritual leadership
  22 - Master building, manifestation
  33 - Master teaching, healing, service

ACTIVITY KEYWORDS:
  new, begin, start, launch   → Day 1
  creative, write, content    → Day 3
  business, money, scale      → Day 8
  study, learn, research      → Day 7
  complete, finish, publish   → Day 9
  teach, serve, help          → Day 6
    `);
    process.exit(0);
  }
}

// Load profile if specified
if (profileId) {
  const profile = loadProfile(profileId);

  if (!profile) {
    console.error(`Error: Profile '${profileId}' not found`);
    console.error('List profiles with: bun profile.ts list');
    process.exit(1);
  }

  birthdate = profile.birthdate;
}

if (!birthdate) {
  console.error('Error: --birthdate is required (or use --profile)');
  console.error('Try: bun optimal-days.ts --help');
  process.exit(1);
}

// Activity to Personal Day mapping
const activityMap: Record<string, number[]> = {
  'new': [1],
  'begin': [1],
  'start': [1],
  'launch': [1, 8],
  'creative': [3],
  'write': [3],
  'content': [3],
  'communicate': [3],
  'business': [8],
  'money': [8],
  'financial': [8],
  'scale': [8],
  'study': [7],
  'learn': [7],
  'research': [7],
  'certification': [7],
  'complete': [9],
  'finish': [9],
  'publish': [9],
  'release': [9],
  'teach': [6, 33],
  'serve': [6, 33],
  'help': [6],
  'organize': [4],
  'build': [4, 22],
  'system': [4],
  'change': [5],
  'market': [5],
  'promote': [5],
  'partner': [2],
  'collaborate': [2],
  'spiritual': [7, 11],
  'inspire': [11],
};

// Determine target day from activity if not specified
if (!targetDay && activity) {
  const matchedDays = activityMap[activity];
  if (matchedDays && matchedDays.length > 0) {
    targetDay = matchedDays[0]; // Use first match
    console.log(`\n🎯 Searching for Personal Day ${targetDay} days (best for "${activity}" activities)\n`);
  } else {
    console.error(`Error: Unknown activity "${activity}"`);
    console.error('Try: new, creative, business, study, complete, teach, etc.');
    process.exit(1);
  }
}

if (!targetDay) {
  console.error('Error: Either --day or --activity is required');
  console.error('Try: bun optimal-days.ts --help');
  process.exit(1);
}

// Day meanings
const dayMeanings: Record<number, { name: string; energy: string; bestFor: string[] }> = {
  1: {
    name: 'New Beginnings',
    energy: 'Initiative, Independence, Leadership',
    bestFor: [
      'Starting new projects or ventures',
      'First client meetings',
      'Launching products/services',
      'Making bold decisions',
      'Taking independent action',
      'Breaking new ground'
    ]
  },
  2: {
    name: 'Cooperation',
    energy: 'Partnership, Patience, Details',
    bestFor: [
      'Building partnerships',
      'Collaborative meetings',
      'Detail-oriented work',
      'Diplomatic negotiations',
      'Relationship building',
      'Refining and perfecting'
    ]
  },
  3: {
    name: 'Creative Expression',
    energy: 'Communication, Creativity, Social',
    bestFor: [
      'Writing and content creation',
      'Public speaking',
      'Social media and networking',
      'Creative projects',
      'Presentations',
      'Joyful collaboration'
    ]
  },
  4: {
    name: 'Foundation Building',
    energy: 'Hard Work, Organization, Structure',
    bestFor: [
      'Building systems and processes',
      'Organizing and planning',
      'Infrastructure work',
      'Physical projects',
      'Financial planning',
      'Detail implementation'
    ]
  },
  5: {
    name: 'Change & Freedom',
    energy: 'Variety, Adventure, Marketing',
    bestFor: [
      'Marketing and promotion',
      'Trying new approaches',
      'Embracing change',
      'Travel and exploration',
      'Experimenting',
      'Pivoting strategies'
    ]
  },
  6: {
    name: 'Service & Responsibility',
    energy: 'Teaching, Helping, Family',
    bestFor: [
      'Client service work',
      'Teaching and training',
      'Taking on responsibility',
      'Family matters',
      'Home projects',
      'Community service'
    ]
  },
  7: {
    name: 'Introspection',
    energy: 'Study, Spirituality, Analysis',
    bestFor: [
      'Deep study and learning',
      'Research and analysis',
      'Spiritual practice',
      'Private development',
      'Rest and rejuvenation',
      'Strategic thinking'
    ]
  },
  8: {
    name: 'Achievement',
    energy: 'Power, Business, Success',
    bestFor: [
      'Business deals and negotiations',
      'Financial decisions',
      'Scaling operations',
      'Authority building',
      'Major launches',
      'Leadership actions'
    ]
  },
  9: {
    name: 'Completion',
    energy: 'Release, Endings, Letting Go',
    bestFor: [
      'Completing projects',
      'Publishing finished work',
      'Releasing products',
      'Ending what no longer serves',
      'Wrapping up loose ends',
      'Clearing space'
    ]
  },
  11: {
    name: 'Inspiration',
    energy: 'Intuition, Illumination, Spiritual Leadership',
    bestFor: [
      'Inspiring others',
      'Channeling intuition',
      'Spiritual teaching',
      'Visionary work',
      'Illuminating insights',
      'Master-level guidance'
    ]
  },
  22: {
    name: 'Master Building',
    energy: 'Manifestation, Large-Scale Vision',
    bestFor: [
      'Building lasting legacies',
      'Large-scale projects',
      'Master-level manifestation',
      'Visionary implementation',
      'Foundation for decades',
      'Ambitious launches'
    ]
  },
  33: {
    name: 'Master Teaching',
    energy: 'Healing, Compassionate Service',
    bestFor: [
      'Master teaching moments',
      'Healing and service work',
      'Compassionate leadership',
      'Educational initiatives',
      'Serving at highest level',
      'Impact-focused action'
    ]
  }
};

// Avoid activities
const avoidActivities: Record<number, string[]> = {
  1: ['Waiting for others', 'Being passive', 'Following only'],
  2: ['Solo ventures', 'Rushing', 'Being impatient'],
  3: ['Heavy analytical work', 'Isolation', 'Serious only mode'],
  4: ['Starting completely new things', 'Taking shortcuts', 'Scattered work'],
  5: ['Rigid routines', 'Being stuck', 'Resisting change'],
  6: ['Selfish pursuits', 'Avoiding responsibility', 'Neglecting others'],
  7: ['Major public launches', 'Excessive socializing', 'Surface-level work'],
  8: ['Spiritual retreats', 'Passive waiting', 'Small thinking'],
  9: ['Starting new ventures', 'Beginning fresh', 'Initiating'],
  11: ['Ignoring intuition', 'Playing small', 'Logical-only thinking'],
  22: ['Small projects', 'Short-term thinking', 'Doubting vision'],
  33: ['Selfish profit focus', 'Burnout', 'Saving everyone without boundaries']
};

interface OptimalDay {
  date: Date;
  dateString: string;
  dayOfWeek: string;
  personalDay: number;
  personalMonth: number;
  monthName: string;
}

// Find optimal days
function findOptimalDays(
  birthdate: string,
  targetDay: number,
  month: number | null,
  year: number
): OptimalDay[] {
  const results: OptimalDay[] = [];

  const startMonth = month || 1;
  const endMonth = month || 12;

  for (let m = startMonth; m <= endMonth; m++) {
    const daysInMonth = new Date(year, m, 0).getDate();

    for (let d = 1; d <= daysInMonth; d++) {
      const dateStr = `${m}/${d}/${year}`;
      const cycles = calculateCycles(birthdate, dateStr);

      if (cycles.personal.day === targetDay) {
        const date = new Date(year, m - 1, d);
        results.push({
          date,
          dateString: dateStr,
          dayOfWeek: date.toLocaleDateString('en-US', { weekday: 'long' }),
          personalDay: cycles.personal.day,
          personalMonth: cycles.personal.month,
          monthName: date.toLocaleDateString('en-US', { month: 'long' })
        });
      }
    }
  }

  return results;
}

// Main execution
console.log(`\n═══════════════════════════════════════════════════════════════`);
console.log(`🎯 OPTIMAL DAYS FINDER`);
console.log(`═══════════════════════════════════════════════════════════════\n`);

const searchPeriod = month
  ? `${new Date(year, month - 1).toLocaleDateString('en-US', { month: 'long' })} ${year}`
  : `All of ${year}`;

console.log(`Searching: ${searchPeriod}`);
console.log(`Personal Day: ${targetDay} (${dayMeanings[targetDay]?.name || 'Unknown'})\n`);

const optimalDays = findOptimalDays(birthdate, targetDay, month, year);

if (optimalDays.length === 0) {
  console.log(`❌ No Personal Day ${targetDay} days found in ${searchPeriod}\n`);
  process.exit(0);
}

console.log(`Found ${optimalDays.length} optimal day${optimalDays.length > 1 ? 's' : ''}:\n`);

// Display results grouped by month
const byMonth: Record<string, OptimalDay[]> = {};
optimalDays.forEach(day => {
  if (!byMonth[day.monthName]) byMonth[day.monthName] = [];
  byMonth[day.monthName].push(day);
});

for (const [monthName, days] of Object.entries(byMonth)) {
  console.log(`📅 ${monthName.toUpperCase()} ${year}:`);
  days.forEach(day => {
    const date = day.date;
    const dateFormatted = `${monthName} ${date.getDate()}, ${year}`;
    console.log(`   • ${day.dayOfWeek}, ${dateFormatted}`);
  });
  console.log('');
}

// Display day meaning and guidance
const meaning = dayMeanings[targetDay];
if (meaning) {
  console.log(`═══════════════════════════════════════════════════════════════`);
  console.log(`PERSONAL DAY ${targetDay}: ${meaning.name.toUpperCase()}`);
  console.log(`═══════════════════════════════════════════════════════════════\n`);

  console.log(`🌟 ENERGY: ${meaning.energy}\n`);

  console.log(`✅ BEST FOR:`);
  meaning.bestFor.forEach(item => console.log(`   • ${item}`));
  console.log('');

  if (avoidActivities[targetDay]) {
    console.log(`⚠️  AVOID ON THESE DAYS:`);
    avoidActivities[targetDay].forEach(item => console.log(`   • ${item}`));
    console.log('');
  }
}

// Practical scheduling tips
console.log(`═══════════════════════════════════════════════════════════════`);
console.log(`💡 SCHEDULING TIPS`);
console.log(`═══════════════════════════════════════════════════════════════\n`);

if (targetDay === 1) {
  console.log(`→ Schedule important launches and "first steps" on these days`);
  console.log(`→ Use for kickoff meetings and bold initiatives`);
  console.log(`→ These are YOUR days to lead and take charge\n`);
} else if (targetDay === 3) {
  console.log(`→ Perfect days for content creation and publishing`);
  console.log(`→ Schedule presentations and networking events`);
  console.log(`→ Social media campaigns work great on Day 3\n`);
} else if (targetDay === 7) {
  console.log(`→ Block these days for deep work and study`);
  console.log(`→ Avoid scheduling external meetings if possible`);
  console.log(`→ Use for strategy, analysis, and preparation\n`);
} else if (targetDay === 8) {
  console.log(`→ Schedule major business deals and negotiations`);
  console.log(`→ Perfect for product launches and promotions`);
  console.log(`→ Make big financial decisions on these days\n`);
} else if (targetDay === 9) {
  console.log(`→ Ideal days to ship completed projects`);
  console.log(`→ Schedule "wrapping up" and "final release" work`);
  console.log(`→ Good for ending contracts or relationships\n`);
}

// Show first 3 as "upcoming opportunities" if searching future
const today = new Date();
const futureDays = optimalDays.filter(d => d.date >= today).slice(0, 3);

if (futureDays.length > 0) {
  console.log(`═══════════════════════════════════════════════════════════════`);
  console.log(`🚀 UPCOMING OPPORTUNITIES`);
  console.log(`═══════════════════════════════════════════════════════════════\n`);

  futureDays.forEach((day, i) => {
    const daysUntil = Math.ceil((day.date.getTime() - today.getTime()) / (1000 * 60 * 60 * 24));
    const urgent = daysUntil <= 7 ? '⚡' : '';
    console.log(`${i + 1}. ${urgent} ${day.dayOfWeek}, ${day.monthName} ${day.date.getDate()}`);
    console.log(`   (${daysUntil} days from now - Personal Month ${day.personalMonth})\n`);
  });
}

console.log(`✨ Use these optimal days to align your actions with natural energy cycles\n`);