#!/usr/bin/env node
/**
 * Bootstrap Directus schema by creating PostgreSQL tables.
 * Directus will auto-discover these tables on startup and create the field metadata automatically.
 */

import pkg from 'pg';
const { Pool } = pkg;

const pgConfig = {
  host: process.env.POSTGRES_HOST || 'db',
  port: parseInt(process.env.POSTGRES_PORT || '5432'),
  user: process.env.POSTGRES_USER || 'directus',
  password: process.env.POSTGRES_PASSWORD || 'change-me',
  database: process.env.POSTGRES_DB || 'directus',
};

const pool = new Pool(pgConfig);

console.log('========================================');
console.log('Directus Schema Bootstrap');
console.log('========================================');
console.log('');

// Define collections and fields
const schema = {
  tags: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'name', type: 'varchar(255)', nullable: false, default: null },
    { field: 'slug', type: 'varchar(255)', nullable: false, default: null },
  ],
  news: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'title', type: 'varchar(255)', nullable: false, default: null },
    { field: 'slug', type: 'varchar(255)', nullable: false, default: null },
    { field: 'body', type: 'text', nullable: true, default: null },
    { field: 'summary', type: 'text', nullable: true, default: null },
    { field: 'featured_image', type: 'uuid', nullable: true, default: null },
    { field: 'status', type: 'varchar(255)', nullable: true, default: null },
    { field: 'publish_date', type: 'timestamp with time zone', nullable: true, default: null },
    { field: 'author', type: 'varchar(255)', nullable: true, default: null },
  ],
  events: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'title', type: 'varchar(255)', nullable: false, default: null },
    { field: 'slug', type: 'varchar(255)', nullable: false, default: null },
    { field: 'description', type: 'text', nullable: true, default: null },
    { field: 'start_datetime', type: 'timestamp with time zone', nullable: false, default: null },
    { field: 'end_datetime', type: 'timestamp with time zone', nullable: true, default: null },
    { field: 'location_text', type: 'varchar(255)', nullable: true, default: null },
    { field: 'image', type: 'uuid', nullable: true, default: null },
    { field: 'registration_link', type: 'varchar(500)', nullable: true, default: null },
    { field: 'status', type: 'varchar(255)', nullable: true, default: null },
    { field: 'is_featured', type: 'boolean', nullable: true, default: 'false' },
  ],
  notices: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'title', type: 'varchar(255)', nullable: false, default: null },
    { field: 'message', type: 'text', nullable: false, default: null },
    { field: 'severity', type: 'varchar(20)', nullable: true, default: "'info'" },
    { field: 'start_date', type: 'date', nullable: true, default: null },
    { field: 'end_date', type: 'date', nullable: true, default: null },
    { field: 'active', type: 'boolean', nullable: true, default: 'true' },
    { field: 'priority', type: 'integer', nullable: true, default: '0' },
  ],
  fuel_prices: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'fuel_type', type: 'varchar(255)', nullable: false, default: null },
    { field: 'price_per_litre', type: 'numeric(10,2)', nullable: false, default: null },
    { field: 'currency', type: 'varchar(3)', nullable: true, default: "'GBP'" },
    { field: 'last_updated', type: 'timestamp with time zone', nullable: true, default: null },
    { field: 'notes', type: 'text', nullable: true, default: null },
  ],
  documents: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'title', type: 'varchar(255)', nullable: false, default: null },
    { field: 'file', type: 'uuid', nullable: true, default: null },
    { field: 'category', type: 'varchar(255)', nullable: true, default: null },
    { field: 'description', type: 'text', nullable: true, default: null },
    { field: 'uploaded_at', type: 'timestamp with time zone', nullable: true, default: null },
  ],
  contacts: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'name', type: 'varchar(255)', nullable: false, default: null },
    { field: 'role', type: 'varchar(255)', nullable: true, default: null },
    { field: 'email', type: 'varchar(255)', nullable: false, default: null },
    { field: 'phone', type: 'varchar(20)', nullable: true, default: null },
    { field: 'is_public', type: 'boolean', nullable: true, default: 'true' },
    { field: 'order', type: 'integer', nullable: true, default: '0' },
  ],
  news_tags: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'news_id', type: 'integer', nullable: false, default: null },
    { field: 'tag_id', type: 'integer', nullable: false, default: null },
  ],
  events_tags: [
    { field: 'id', type: 'integer', nullable: false, default: null },
    { field: 'event_id', type: 'integer', nullable: false, default: null },
    { field: 'tag_id', type: 'integer', nullable: false, default: null },
  ],
};

async function main() {
  const client = await pool.connect();

  try {
    console.log('🔐 Connecting to PostgreSQL...');
    await client.query('SELECT 1');
    console.log('✓ Connected successfully');
    console.log('');
    console.log('📋 Creating tables...');
    console.log('');

    // Create all tables
    const created = [];
    for (const [collectionName, fields] of Object.entries(schema)) {
      const wasCreated = await createTable(client, collectionName, fields);
      if (wasCreated) created.push(collectionName);
    }

    console.log('');
    if (created.length > 0) {
      console.log('✅ Schema bootstrap completed successfully!');
      console.log('');
      console.log(`Created ${created.length} tables:`);
      created.forEach(name => console.log(`  - ${name}`));
      console.log('');
      console.log('Directus will discover these tables automatically.');
    } else {
      console.log('ℹ️  All tables already exist. Schema is up to date.');
    }
  } catch (error) {
    console.error('❌ Bootstrap failed:', error.message);
    console.error(error);
    process.exit(1);
  } finally {
    client.release();
    await pool.end();
  }
}

async function createTable(client, collectionName, fields) {
  // Check if table already exists
  const checkResult = await client.query(
    `SELECT to_regclass($1)`,
    [`public.${collectionName}`]
  );

  if (checkResult.rows[0].to_regclass) {
    console.log(`  ℹ Table exists: ${collectionName}`);
    return false;
  }

  // Build CREATE TABLE statement
  const columnDefs = fields.map(f => {
    let def = `"${f.field}" ${f.type}`;
    if (!f.nullable) {
      def += ' NOT NULL';
    }
    if (f.default) {
      def += ` DEFAULT ${f.default}`;
    }
    return def;
  });

  // Add primary key if not already in fields
  if (!fields.some(f => f.field === 'id')) {
    columnDefs.unshift('"id" integer PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY');
  }

  const createTableSQL = `CREATE TABLE "public"."${collectionName}" (${columnDefs.join(', ')})`;

  try {
    await client.query(createTableSQL);
    console.log(`  ✓ Created table: ${collectionName}`);
    return true;
  } catch (error) {
    if (error.code === '42P07') {
      // Table already exists
      console.log(`  ℹ Table exists: ${collectionName}`);
      return false;
    }
    throw error;
  }
}

main();