import { BaseDataSourceOptions } from "../../data-source/BaseDataSourceOptions"
import { SapConnectionCredentialsOptions } from "./SapConnectionCredentialsOptions"

/**
 * SAP Hana specific connection options.
 */
export interface SapConnectionOptions
    extends BaseDataSourceOptions,
        SapConnectionCredentialsOptions {
    /**
     * Database type.
     */
    readonly type: "sap"

    /**
     * Database schema.
     */
    readonly schema?: string

    /**
     * The driver objects
     * This defaults to require("hdb-pool")
     */
    readonly driver?: any

    /**
     * The driver objects
     * This defaults to require("@sap/hana-client")
     */
    readonly hanaClientDriver?: any

    /**
     * Pool options.
     */
    readonly pool?: {
        /**
         * Max number of connections.
         */
        readonly max?: number

        /**
         * Minimum number of connections.
         */
        readonly min?: number

        /**
         * Maximum number of waiting requests allowed. (default=0, no limit).
         */
        readonly maxWaitingRequests?: number
        /**
         * Max milliseconds a request will wait for a resource before timing out. (default=5000)
         */
        readonly requestTimeout?: number
        /**
         * How often to run resource timeout checks. (default=0, disabled)
         */
        readonly checkInterval?: number
        /**
         * Idle timeout
         */
        readonly idleTimeout?: number

        /**
         * Function handling errors thrown by drivers pool.
         * Defaults to logging error with `warn` level.
         */
        readonly poolErrorHandler?: (err: any) => any
    }

    readonly poolSize?: never
}