// db/init.js
const db = require('./knex');

async function init() {
  // -------------------------------
  // 1) Tabella PHOTOS
  // -------------------------------
  const existsPhotos = await db.schema.hasTable('photos');

  if (!existsPhotos) {
    await db.schema.createTable('photos', (t) => {
      t.string('id').primary();
      t.string('user');
      t.string('cartella');
      t.string('name');
      t.string('path');
      t.string('thub1');
      t.string('thub2');
      t.string('mime_type');
      t.integer('width');
      t.integer('height');
      t.integer('rotation');
      t.integer('size_bytes');
      t.integer('mtimeMs');
      t.integer('duration_ms');
      t.string('taken_at');
      t.string('data');
      t.float('lat');
      t.float('lon');
      t.float('alt');
      t.text('location'); // JSON string

      // Hash lento (metadati)
      t.string('_indexHash');

      // Hash veloce (size-mtime)
      t.string('fast_hash');
    });

    console.log("✔ Tabella 'photos' creata correttamente (con _indexHash + fast_hash)");

  } else {
    console.log("✔ Tabella 'photos' già esistente");

    // Controllo colonna _indexHash
    const hasIndexHash = await db.schema.hasColumn('photos', '_indexHash');
    if (!hasIndexHash) {
      await db.schema.alterTable('photos', (t) => {
        t.string('_indexHash');
      });
      console.log("✔ Colonna '_indexHash' aggiunta");
    }

    // Controllo colonna fast_hash
    const hasFastHash = await db.schema.hasColumn('photos', 'fast_hash');
    if (!hasFastHash) {
      await db.schema.alterTable('photos', (t) => {
        t.string('fast_hash');
      });
      console.log("✔ Colonna 'fast_hash' aggiunta");
    }
  }

  // -------------------------------
  // 2) Tabella PHOTO_CHANGES
  // -------------------------------
  const existsChanges = await db.schema.hasTable('photo_changes');

  if (!existsChanges) {
    await db.schema.createTable('photo_changes', (t) => {
      t.increments('id').primary();
      t.string('photo_id');
      t.string('user');
      t.string('change_type'); // added | updated | removed
      t.string('timestamp');   // ISO string
    });

    console.log("✔ Tabella 'photo_changes' creata correttamente");
  } else {
    console.log("✔ Tabella 'photo_changes' già esistente");
  }

  process.exit();
}

init();