import { DatabaseDriver } from './driver';
import { DatabaseEnv } from '../config';
import { DataDefinitionBuilder, DataDefinitionRepository } from '../ddl';
import { DatabaseConnectionOptions } from './connection-options';
import { DatabaseRecord } from '../record';
import { DatabaseQueryBuilder, QueryRepository, QueryRepositoryOptions } from '../dml';
import { SchemaQueryRepository } from '../schema/schema-query-repository';
import { Schema } from '../schema';
import { Transaction } from './transaction';
/**
 * Represents a single database instance, including a driver,
 * 	configuration, connection, etc.
 */
export declare abstract class Database {
    /**
     * Reconstructors will be used to re-initialize repositories
     * 	after the database has been initialized.
     *
     * This allows repositories to be created in global scope
     * 	before the database is init()'d
     */
    protected queryRepoInitQueue: QueryRepository[];
    protected ddlRepoInitQueue: DataDefinitionRepository[];
    protected schemaRepoInitQueue: SchemaQueryRepository[];
    isLoaded: boolean;
    /**
     * Database driver class
     */
    driverType: typeof DatabaseDriver;
    /**
     * Database driver intance
     */
    driver: DatabaseDriver;
    /**
     * Database configuration class
     */
    envType: typeof DatabaseEnv;
    /**
     * Database configuration
     */
    env: DatabaseEnv;
    /**
     * Parent path (database path)
     */
    databasePath: string;
    /**
     * Database name (must match folder name!)
     */
    name: string;
    /**
     * Migrations directory, relative to this database
     * 	e.g. If the migrations are in `database/main/migrations`,
     * 	set this to `migrations`
     */
    migrations: string;
    /**
     * Seeds directory, relative to this database
     * 	e.g. If the seeds are in `database/main/seeds`,
     * 	set this to `seeds`
     */
    seeds: string;
    /**
     * Schema storage directory, relative to this database
     * 	e.g. If the schema is in `database/main/.schema`,
     * 	set this to `.schema`
     */
    schemaDirectory: string;
    /**
     * Query builder class type used to create new query builders
     */
    queryBuilderType: typeof DatabaseQueryBuilder;
    /**
     * Query repository class type used to create new repos
     */
    queryRepositoryType: typeof QueryRepository;
    /**
     * Query repository
     */
    query: QueryRepository;
    /**
     * DDL builder class type used to create new builders
     */
    ddlBuilderType: typeof DataDefinitionBuilder;
    /**
     * DDL repository class type used to create new repos
     */
    ddlRepositoryType: typeof DataDefinitionRepository;
    /**
     * Data definition repository
     */
    ddl: DataDefinitionRepository;
    /**
     * Schema Query repository class type used to create new repos
     */
    schemaQueryRepositoryType: typeof SchemaQueryRepository;
    /**
     * Schema query repository
     */
    schemaQuery: SchemaQueryRepository;
    /**
     * Database schema
     */
    protected schema: Schema;
    /**
     * Initialize the database
     *
     * @param options Database options
     */
    init(options?: {
        connectionOptions?: DatabaseConnectionOptions;
    }): Promise<void>;
    /**
     * Load the configuration .env
     */
    configureFromEnv(): void;
    /**
     * Connect to the database
     */
    connect(): Promise<void>;
    /**
     * Disconnect from the database
     */
    disconnect(): Promise<void>;
    /**
     * Get the full relative path to this database's migrations folder
     *
     * @returns Returns the relative file path
     */
    getMigrationsDirectory(): string;
    /**
     * Get the full relative path to this database's seeds folder
     *
     * @returns Returns the relative file path
     */
    getSeedsDirectory(): string;
    /**
     * Get the full relative path to this database's schema folder
     *
     * @returns Returns the relative file path
     */
    getSchemaDirectory(): string;
    /**
     * Get a new DDL builder
     *
     * @returns DDL builder
     */
    getDataDefinitionBuilder(): DataDefinitionBuilder;
    /**
     * Get a new DDL repository
     *
     * @param options Repository options
     * @returns Returns the DDL repository
     */
    getDataDefinitionRepository(): DataDefinitionRepository;
    /**
     * Get a new query builder
     *
     * @returns Query builder
     */
    getQueryBuilder(): DatabaseQueryBuilder;
    /**
     * Get a new query repository
     *
     * @param options Repository options
     * @returns Returns the query repository
     */
    getQueryRepository<T extends DatabaseRecord = DatabaseRecord>(options?: Omit<QueryRepositoryOptions, 'driver' | 'queryBuilderType' | 'functions'>): QueryRepository<T>;
    /**
     * Get a new schema query repository
     *
     * @returns Schema Query Repository
     */
    getSchemaQueryRepository(): SchemaQueryRepository;
    /**
     * Build & save the database schema
     */
    buildSchema(): Promise<void>;
    /**
     * Save the database schema
     */
    saveSchema(): Promise<void>;
    /**
     * Load the database schema
     */
    loadSchema(): Promise<void>;
    /**
     * Get schema metadata
     *
     * @returns Schema
     */
    getSchema(): Promise<Schema>;
    /**
     * Run a transaction
     *
     * @param fn Transaction callback
     * @returns Passes the return from the transaction callback
     */
    transaction<T>(fn: (transaction: Transaction) => Promise<T>): Promise<T>;
}