import { Database } from "./database.mjs";
import { wrapAdapter } from "./adapter_wrapper.mjs";
import { PawSQLiteError } from "./pawsqlite_error.mjs";
import { enableDebug, log } from "./log.mjs";


const adapters = [];


export default {
  open: async function(dbName, options = {}) {
    const adapter = getAdapter(options.adapter);

    let db = new Database(dbName, adapter);
    await db.open();
    return db;
  },
  delete: function(dbName, options = {}) {
    const adapter = getAdapter(options.adapter);

    return adapter.delete(dbName);
  },
  registerAdapter: function(adapter) {
    if (!adapter) {
      throw new PawSQLiteError("Invalid adapter");
    }

    const wrapped = wrapAdapter(adapter);

    if (getAdapter(wrapped.name, true)) {
      throw new PawSQLiteError(`An adapter with the name: ${ wrapped.name } ` +
        `Already exists`);
    }

    log(`Registered adapter: ${ wrapped.name }`);

    adapters.push(wrapped);
  },
  debug: enableDebug,
  Error: PawSQLiteError
};



function getAdapter(adapterName, silent=false) {
  const adapter = adapters.find((a) => a.name === adapterName);

  if (!(silent || adapter)) {
    throw new PawSQLiteError(`Unknown Adapter: ${adapterName}`);
  }

  return adapter;
}