#!/usr/bin/env bun
/**
 * Name Change Analyzer
 *
 * Compare how your numerology numbers change with different name variations.
 * Perfect for testing nicknames, stage names, married names, or professional brands.
 *
 * Usage:
 *   bun name-change.ts --birthdate "5/13/1982" --current "John Smith" --alternative "John Smith"
 *   bun name-change.ts -b "5/13/1982" -c "Jane Smith" -a "Jane Doe" -a "J Smith"
 */

import { calculateCoreNumbers, calculateAdditionalNumbers } from './core-calculator';
import { expression, soulUrge } from './meanings';
import { personalityMeanings } from './additional-meanings';

// Parse command line arguments
const args = process.argv.slice(2);
let birthdate = '';
let currentName = '';
let alternativeNames: string[] = [];

for (let i = 0; i < args.length; i++) {
  if ((args[i] === '--birthdate' || args[i] === '-b') && args[i + 1]) {
    birthdate = args[i + 1];
    i++;
  } else if ((args[i] === '--current' || args[i] === '-c') && args[i + 1]) {
    currentName = args[i + 1];
    i++;
  } else if ((args[i] === '--alternative' || args[i] === '-a') && args[i + 1]) {
    alternativeNames.push(args[i + 1]);
    i++;
  } else if (args[i] === '--help' || args[i] === '-h') {
    console.log(`
Name Change Analyzer

Compare how your numerology changes with different name variations.
Test nicknames, stage names, married names, or professional brands.

USAGE:
  bun name-change.ts --birthdate "mm/dd/yyyy" --current "Current Name" --alternative "Alt Name" [OPTIONS]

OPTIONS:
  -b, --birthdate DATE      Your birthdate (mm/dd/yyyy) [required]
  -c, --current NAME        Your current/legal name [required]
  -a, --alternative NAME    Alternative name to compare [can use multiple times]
  -h, --help                Show this help message

EXAMPLES:
  # Compare two name variations
  bun name-change.ts -b "5/13/1982" -c "John Smith" -a "John Smith"

  # Compare multiple alternatives
  bun name-change.ts -b "11/22/1990" -c "Jane Smith" -a "Jane Doe" -a "J Smith"

  # Test stage name vs real name
  bun name-change.ts -b "3/14/1985" -c "Robert Johnson" -a "Rob J" -a "RJ"

WHAT IT SHOWS:
  - Expression Number changes (your talents/abilities)
  - Soul Urge changes (your inner desires)
  - Personality Number changes (how others see you)
  - Maturity Number shifts
  - Hidden Passion changes
  - Karmic Lessons differences
  - Energy shift analysis
  - Recommendations for which contexts to use each name

NOTE: Life Path and Birthday don't change (they're from your birthdate).
      Only name-based numbers are compared.
    `);
    process.exit(0);
  }
}

if (!birthdate || !currentName || alternativeNames.length === 0) {
  console.error('Error: --birthdate, --current, and at least one --alternative are required');
  console.error('Try: bun name-change.ts --help');
  process.exit(1);
}

interface NameAnalysis {
  name: string;
  expression: number;
  soulUrge: number;
  personality: number;
  maturity: number;
  hiddenPassion: number | null;
  karmicLessons: number[];
  balance: number;
}

function analyzeName(name: string, birthdate: string): NameAnalysis {
  const coreNumbers = calculateCoreNumbers(name, birthdate);
  const additionalNumbers = calculateAdditionalNumbers(name, coreNumbers);

  return {
    name,
    expression: coreNumbers.expression,
    soulUrge: coreNumbers.soulUrge,
    personality: additionalNumbers.personality,
    maturity: additionalNumbers.maturity,
    hiddenPassion: additionalNumbers.hiddenPassion,
    karmicLessons: additionalNumbers.karmicLessons,
    balance: additionalNumbers.balance
  };
}

function getNumberDifference(num1: number, num2: number): string {
  const diff = num2 - num1;
  if (diff === 0) return '';
  if (diff > 0) return `⬆️ +${diff}`;
  return `⬇️ ${diff}`;
}

function getEnergyShift(fromNum: number, toNum: number, type: 'expression' | 'soulUrge'): string[] {
  if (fromNum === toNum) return ['No change in energy'];

  const shifts: string[] = [];

  // Energy level descriptors
  const energyLevels: Record<number, string> = {
    1: 'Independent/Leadership',
    2: 'Cooperative/Diplomatic',
    3: 'Creative/Expressive',
    4: 'Stable/Practical',
    5: 'Dynamic/Freedom-seeking',
    6: 'Nurturing/Responsible',
    7: 'Analytical/Spiritual',
    8: 'Powerful/Material Success',
    9: 'Humanitarian/Universal',
    11: 'Inspirational/Intuitive',
    22: 'Master Builder/Visionary',
    33: 'Master Teacher/Healer'
  };

  shifts.push(`${energyLevels[fromNum]} → ${energyLevels[toNum]}`);

  // Specific shift interpretations
  if (toNum === 8 && fromNum !== 8) {
    shifts.push('• Stronger business/leadership energy');
    shifts.push('• Better for professional success and authority');
  }

  if (toNum === 3 && fromNum !== 3) {
    shifts.push('• More creative and expressive energy');
    shifts.push('• Better for communication and social presence');
  }

  if (toNum === 7 && fromNum !== 7) {
    shifts.push('• More introspective and analytical');
    shifts.push('• Better for deep work and spiritual pursuits');
  }

  if (toNum === 1 && fromNum !== 1) {
    shifts.push('• Stronger independent/pioneering energy');
    shifts.push('• Better for solo ventures and leadership');
  }

  if ([11, 22, 33].includes(toNum) && ![11, 22, 33].includes(fromNum)) {
    shifts.push('• ✨ Activates master number energy!');
    shifts.push('• Higher spiritual potential and responsibility');
  }

  return shifts;
}

// Analyze all names
console.log(`\n═══════════════════════════════════════════════════════════════`);
console.log(`📝 NAME CHANGE ANALYSIS`);
console.log(`═══════════════════════════════════════════════════════════════\n`);

console.log(`Birthdate: ${birthdate}`);
console.log(`Life Path: ${calculateCoreNumbers(currentName, birthdate).lifePath} (unchanging)\n`);

const currentAnalysis = analyzeName(currentName, birthdate);

console.log(`═══════════════════════════════════════════════════════════════`);
console.log(`CURRENT NAME: ${currentName}`);
console.log(`───────────────────────────────────────────────────────────────`);
console.log(`Expression:   ${currentAnalysis.expression}  (${expression[currentAnalysis.expression].keywords.slice(0, 3).join(', ')})`);
console.log(`Soul Urge:    ${currentAnalysis.soulUrge}  (${soulUrge[currentAnalysis.soulUrge].keywords.slice(0, 3).join(', ')})`);
console.log(`Personality:  ${currentAnalysis.personality}  (${personalityMeanings[currentAnalysis.personality].keywords.slice(0, 3).join(', ')})`);
console.log(`Maturity:     ${currentAnalysis.maturity}`);
console.log(`Hidden Passion: ${currentAnalysis.hiddenPassion || 'None'}`);
console.log(`Karmic Lessons: ${currentAnalysis.karmicLessons.length > 0 ? currentAnalysis.karmicLessons.join(', ') : 'None'}`);
console.log(`Balance:      ${currentAnalysis.balance}\n`);

// Compare each alternative
alternativeNames.forEach((altName, index) => {
  const altAnalysis = analyzeName(altName, birthdate);

  console.log(`═══════════════════════════════════════════════════════════════`);
  console.log(`ALTERNATIVE ${index + 1}: ${altName}`);
  console.log(`───────────────────────────────────────────────────────────────`);

  console.log(`Expression:   ${altAnalysis.expression}  (${expression[altAnalysis.expression].keywords.slice(0, 3).join(', ')}) ${getNumberDifference(currentAnalysis.expression, altAnalysis.expression)}`);
  console.log(`Soul Urge:    ${altAnalysis.soulUrge}  (${soulUrge[altAnalysis.soulUrge].keywords.slice(0, 3).join(', ')}) ${getNumberDifference(currentAnalysis.soulUrge, altAnalysis.soulUrge)}`);
  console.log(`Personality:  ${altAnalysis.personality}  (${personalityMeanings[altAnalysis.personality].keywords.slice(0, 3).join(', ')}) ${getNumberDifference(currentAnalysis.personality, altAnalysis.personality)}`);
  console.log(`Maturity:     ${altAnalysis.maturity} ${getNumberDifference(currentAnalysis.maturity, altAnalysis.maturity)}`);
  console.log(`Hidden Passion: ${altAnalysis.hiddenPassion || 'None'}`);
  console.log(`Karmic Lessons: ${altAnalysis.karmicLessons.length > 0 ? altAnalysis.karmicLessons.join(', ') : 'None'}`);
  console.log(`Balance:      ${altAnalysis.balance} ${getNumberDifference(currentAnalysis.balance, altAnalysis.balance)}\n`);

  // Key differences
  console.log(`📊 KEY DIFFERENCES:`);

  if (altAnalysis.expression !== currentAnalysis.expression) {
    const shifts = getEnergyShift(currentAnalysis.expression, altAnalysis.expression, 'expression');
    console.log(`\n🎯 Expression shift (talents/abilities):`);
    shifts.forEach(s => console.log(`   ${s}`));
  }

  if (altAnalysis.soulUrge !== currentAnalysis.soulUrge) {
    const shifts = getEnergyShift(currentAnalysis.soulUrge, altAnalysis.soulUrge, 'soulUrge');
    console.log(`\n💫 Soul Urge shift (inner desires):`);
    shifts.forEach(s => console.log(`   ${s}`));
  }

  if (altAnalysis.personality !== currentAnalysis.personality) {
    console.log(`\n👤 Personality shift (how others see you):`);
    console.log(`   From: ${personalityMeanings[currentAnalysis.personality].description}`);
    console.log(`   To:   ${personalityMeanings[altAnalysis.personality].description}`);
  }

  // Karmic Lessons comparison
  const gainedLessons = altAnalysis.karmicLessons.filter(l => !currentAnalysis.karmicLessons.includes(l));
  const resolvedLessons = currentAnalysis.karmicLessons.filter(l => !altAnalysis.karmicLessons.includes(l));

  if (resolvedLessons.length > 0) {
    console.log(`\n✅ Karmic Lessons resolved: ${resolvedLessons.join(', ')}`);
  }
  if (gainedLessons.length > 0) {
    console.log(`\n⚠️  New Karmic Lessons: ${gainedLessons.join(', ')}`);
  }

  // Recommendations
  console.log(`\n💡 RECOMMENDATIONS:`);

  const expressionHigher = altAnalysis.expression > currentAnalysis.expression;
  const soulUrgeHigher = altAnalysis.soulUrge > currentAnalysis.soulUrge;
  const hasMaturity8 = altAnalysis.maturity === 8;
  const hasMasterNumber = [11, 22, 33].includes(altAnalysis.expression) || [11, 22, 33].includes(altAnalysis.soulUrge);

  if (altAnalysis.expression === 8 || altAnalysis.expression === 1) {
    console.log(`   → Use "${altName}" for: Business, leadership, professional contexts`);
  }
  if (altAnalysis.expression === 3 || altAnalysis.expression === 5) {
    console.log(`   → Use "${altName}" for: Creative work, social media, public speaking`);
  }
  if (altAnalysis.expression === 7) {
    console.log(`   → Use "${altName}" for: Writing, research, spiritual work`);
  }
  if (altAnalysis.expression === 6) {
    console.log(`   → Use "${altName}" for: Teaching, counseling, service work`);
  }
  if (hasMasterNumber) {
    console.log(`   → "${altName}" activates master number potential - use for your highest calling`);
  }

  if (resolvedLessons.length > 0 && gainedLessons.length === 0) {
    console.log(`   → "${altName}" resolves karmic lessons - energetically cleaner`);
  }

  if (altAnalysis.expression === currentAnalysis.expression &&
      altAnalysis.soulUrge === currentAnalysis.soulUrge &&
      altAnalysis.personality === currentAnalysis.personality) {
    console.log(`   → No significant energy difference - use whichever feels right`);
  }

  console.log('');
});

// Overall summary
console.log(`═══════════════════════════════════════════════════════════════`);
console.log(`📋 SUMMARY`);
console.log(`═══════════════════════════════════════════════════════════════\n`);

console.log(`Compared "${currentName}" with ${alternativeNames.length} alternative(s).\n`);

console.log(`Remember:`);
console.log(`• Legal name for official documents`);
console.log(`• Professional name for career/public presence`);
console.log(`• Personal nicknames for close relationships`);
console.log(`• Different contexts can use different name energies\n`);

console.log(`✨ Your core Life Path never changes - names only affect your expression\n`);