declare namespace OIPF {
    /**
     * The `Configuration` object allows configuration items within the system to be read and modified. This includes
     * settings such as audio and subtitle languages, display aspect ratios and other similar settings. Unlike the `LocalSystem`
     * object, this is concerned with software- and application-related settings rather than hardware configuration and control.
     * 
     * The property `isPINEntryLocked` and the methods `setParentalControlPIN`,
     * `unlockWithParentalControlPIN`, `verifyParentalControlPIN`, `setBlockUnrated` and
     * `getBlockUnrated` formerly found in this class are now found in the
     * `application/oipfParentalControlManager` embedded object - see section 7.9.1.
     * 
     * The methods `setParentalControlPINEnable` and `getParentalControlPINEnable` formerly found in this
     * class have been removed. 
     */
    export class Configuration {

        /**
         * A comma-separated set of languages to be used for audio playback, in order of preference.
         * Each language SHALL be indicated by its ISO 639.2 language code as defined in [ISO 639.2]. 
         */
        preferredAudioLanguage: string;
        
        /**
         * A comma-separated set of languages to be used for subtitle playback, in order of preference.
         * Each language SHALL be indicated by its ISO 639.2 language code as defined in [ISO 639.2]. 
         */
        preferredSubtitleLanguage: string;  
        
        /**
         * A comma-separated set of languages to be used for the user interface of a service, in order of
         * preference.
         * 
         * Each language SHALL be indicated by its ISO 639.2 language code as defined in [ISO 639.2].
         * If present, the HTTP `Accept-language` header shall contain the same languages as the
         * preferredUILanguage property with the same order of preference. NOTE: The order of preference in
         * the `Accept-language` header is indicated using the quality factor. 
         */
        preferredUILanguage: string;
        
        /**
         * An ISO-3166 three character country code identifying the country in which the receiver is deployed. 
         */
        countryId: string; 
        
        /**
         * An integer indicating the time zone within a country in which the receiver is deployed. A value of 0
         * SHALL represent the eastern-most time zone in the country, a value of 1 SHALL represent the next
         * time zone to the west, and so on.
         * Valid values are in the range 0 – 60. 
         */
        regionId: number;
        
        /**
         * The policy dictates what mechanism the system should use when storage space is exceeded.
         * Valid values are shown in the table below. 
         * Value Description
         * - `0` Indicates a recording management policy where no recordings are to
         *   be deleted.
         * - `1` Indicates a recording management policy where only watched
         *   recordings MAY be deleted.
         * - `2` Indicates a recording management policy where only recordings
         *   older than the specified threshold (given by the `pvrSaveDays` and
         *   `pvrSaveEpisodes` properties) MAY be deleted. 
         */
        pvrPolicy: 0 | 1 | 2;
        
        /**
         * When the `pvrPolicy` property is set to the value 2, this property indicates the minimum number of
         * episodes that SHALL be saved for series-link recordings.
         */
        pvrSaveEpisodes: number;
        
        /**
         * When the `pvrPolicy` property is set to the value 2, this property indicates the minimum save time (in
         * days) for individual recordings. Only recordings older than the save time MAY be deleted.
         */
        pvrSaveDays: number;

        /**
         * The default padding (measured in seconds) to be added at the start of a recording.
         */
        pvrStartPadding: number;
        
        /**
         * The default padding (measured in seconds) to be added at the end of a recording.
         */
        pvrEndPadding: number;

        /**
         * Get the system text string that has been set for the specified key. 
         * 
         * @param key A key identifying the system text string to be retrieved.
         */
        getText( key: string ): string;

        /**
         * Set the system text string that has been set for the specified key. System text strings
         * are used for automatically-generated messages in certain cases, e.g. parental control
         * messages.
         * 
         * @param key The key for the text string to be set. Valid keys are:
         *   - `'no_title'` Text string used as the title for
         *     programmes and channels where no
         *     guide information is available.
         *     Defaults to “No information”
         * - `'no_synopsis'` Text string used as the synopsis for
         *     programmes where no guide information
         *     is available.
         *     Defaults to “No further information available”
         * - `'manual_recording'` Text string used to identify a manual
         *     recording.
         *     Defaults to “Manual Recording” 
         * @param value The new value for the system text string. 
         */
        setText( key: 'no_title' | 'no_synopsis' | 'manual_recording', value?: string ): void;

    }
}