#!/usr/bin/env node
/**
 * Smart database initialization script
 * - Fresh DB (no tables) -> prisma db push (fast, applies full schema)
 * - Existing DB with data -> prisma migrate deploy (safe, incremental)
 */

const { execSync } = require('child_process');
const fs = require('fs');
const path = require('path');

function exec(command) {
  try {
    return execSync(command, { encoding: 'utf-8', stdio: 'pipe' });
  } catch (error) {
    return null;
  }
}

function getDatabasePath() {
  const dbUrl = process.env.DATABASE_URL || 'file:./data/prod.db';
  // Extract path from SQLite URL (file:./path or file:/absolute/path)
  return dbUrl.replace(/^file:/, '');
}

function isDatabaseEmpty() {
  const dbPath = getDatabasePath();
  const absolutePath = path.resolve(dbPath);
  
  console.log(`🔍 Checking database at: ${absolutePath}`);
  
  // Si le fichier DB n'existe pas, c'est vide
  if (!fs.existsSync(absolutePath)) {
    console.log('📦 Database file does not exist - fresh install');
    return true;
  }
  
  // Vérifier si des tables existent
  const result = exec('pnpm prisma db execute --stdin <<< ".tables"');
  if (!result || result.trim() === '') {
    console.log('📦 Database exists but has no tables - fresh install');
    return true;
  }
  
  console.log('🔄 Database has existing tables');
  return false;
}

function main() {
  console.log('🚀 Starting database initialization...\n');
  
  if (isDatabaseEmpty()) {
    console.log('✨ Applying full schema with prisma db push...');
    execSync('pnpm prisma db push --skip-generate', { stdio: 'inherit' });
  } else {
    console.log('📝 Applying migrations with prisma migrate deploy...');
    execSync('pnpm prisma migrate deploy', { stdio: 'inherit' });
  }
  
  console.log('\n✅ Database ready!');
}

main();