import type * as Whop from "../index.js";
/**
 * An individual learning unit within a chapter, which can contain text, video, PDF, or assessment content.
 */
export interface CourseLesson {
    /** The list of questions for quiz or knowledge check lessons. Empty for non-assessment lesson types. */
    assessment_questions: CourseLesson.AssessmentQuestions.Item[];
    /** All supplementary files attached to this lesson returned as a flat array rather than a paginated connection. */
    attachments: CourseLesson.Attachments.Item[];
    /** The Markdown content body of the lesson. Null if the lesson has no text content. */
    content: string | null;
    /** The datetime the lesson was created. */
    created_at: string;
    /** The number of days after a student starts the course before this lesson becomes accessible. Null if the lesson is available immediately. */
    days_from_course_start_until_unlock: number | null;
    /** The external video identifier for embedded video lessons, such as a YouTube video ID or Loom share ID. Null if the lesson has no embed. */
    embed_id: string | null;
    /** The platform type for the embedded video. One of: youtube, loom. Null if the lesson has no embed. */
    embed_type: Whop.EmbedTypes | null;
    /** The unique identifier for the lesson. */
    id: string;
    /** The content format of this lesson. One of: text, video, pdf, multi, quiz, knowledge_check. */
    lesson_type: Whop.LessonTypes;
    /** The primary PDF document for PDF-type lessons. Null if this lesson is not a PDF lesson or no PDF has been uploaded. */
    main_pdf: CourseLesson.MainPdf | null;
    /** The sort position of this lesson within its parent chapter, starting from zero. */
    order: number;
    /** The thumbnail image displayed on lesson cards and previews. Null if no thumbnail has been uploaded. */
    thumbnail: CourseLesson.Thumbnail | null;
    /** The display name of the lesson shown to students. Maximum 120 characters. */
    title: string;
    /** The Mux video asset for video-type lessons, used for streaming playback. Null if this lesson has no hosted video. */
    video_asset: CourseLesson.VideoAsset | null;
    /** The visibility setting that controls whether this lesson appears to students. One of: visible, hidden. */
    visibility: Whop.LessonVisibilities;
}
export declare namespace CourseLesson {
    type AssessmentQuestions = AssessmentQuestions.Item[];
    namespace AssessmentQuestions {
        /**
         * An assessment question in a course quiz or knowledge check
         */
        interface Item {
            /** The correct answer for the question. Used for short answer questions. Only visible to admins (users with courses:update permission) */
            correct_answer: string | null;
            /** The datetime the assessment question was created. */
            created_at: string;
            /** The unique identifier for the assessment question. */
            id: string;
            /** Optional image attachment for the question */
            image: Item.Image | null;
            /** The answer options for multiple choice/select questions */
            options: Item.Options.Item[];
            /** The order of the question within its lesson */
            order: number;
            /** The text of the question */
            question_text: string;
            /** The type of the question */
            question_type: Whop.CoursesAssessmentQuestionTypes;
        }
        namespace Item {
            /**
             * Optional image attachment for the question
             */
            interface Image {
                /** Uploaded file MIME type, such as image/jpeg, video/mp4, or audio/mpeg. */
                content_type: string | null;
                /** The original filename of the uploaded attachment, including its file extension. */
                filename: string | null;
                /** Represents a unique identifier that is Base64 obfuscated. It is often used to refetch an object or as key for a cache. The ID type appears in a JSON response as a String; however, it is not intended to be human-readable. When expected as an input type, any string (such as `"VXNlci0xMA=="`) or integer (such as `4`) input value will be accepted as an ID. */
                id: string;
                /** A pre-optimized URL for rendering this attachment on the client. This should be used for displaying attachments in apps. */
                url: string | null;
            }
            type Options = Options.Item[];
            namespace Options {
                /**
                 * An answer option for a multiple choice or multiple select assessment question
                 */
                interface Item {
                    /** The unique identifier for the assessment question option. */
                    id: string;
                    /** Whether this option is a correct answer. Only visible to admins (users with courses:update permission) */
                    is_correct: boolean | null;
                    /** The text of the answer option */
                    option_text: string;
                    /** The order of this option within the question */
                    order: number;
                }
            }
        }
    }
    type Attachments = Attachments.Item[];
    namespace Attachments {
        /**
         * Represents an image attachment
         */
        interface Item {
            /** Uploaded file MIME type, such as image/jpeg, video/mp4, or audio/mpeg. */
            content_type: string | null;
            /** The original filename of the uploaded attachment, including its file extension. */
            filename: string | null;
            /** Represents a unique identifier that is Base64 obfuscated. It is often used to refetch an object or as key for a cache. The ID type appears in a JSON response as a String; however, it is not intended to be human-readable. When expected as an input type, any string (such as `"VXNlci0xMA=="`) or integer (such as `4`) input value will be accepted as an ID. */
            id: string;
            /** A pre-optimized URL for rendering this attachment on the client. This should be used for displaying attachments in apps. */
            url: string | null;
        }
    }
    /**
     * The primary PDF document for PDF-type lessons. Null if this lesson is not a PDF lesson or no PDF has been uploaded.
     */
    interface MainPdf {
        /** Uploaded file MIME type, such as image/jpeg, video/mp4, or audio/mpeg. */
        content_type: string | null;
        /** The original filename of the uploaded attachment, including its file extension. */
        filename: string | null;
        /** Represents a unique identifier that is Base64 obfuscated. It is often used to refetch an object or as key for a cache. The ID type appears in a JSON response as a String; however, it is not intended to be human-readable. When expected as an input type, any string (such as `"VXNlci0xMA=="`) or integer (such as `4`) input value will be accepted as an ID. */
        id: string;
        /** A pre-optimized URL for rendering this attachment on the client. This should be used for displaying attachments in apps. */
        url: string | null;
    }
    /**
     * The thumbnail image displayed on lesson cards and previews. Null if no thumbnail has been uploaded.
     */
    interface Thumbnail {
        /** A pre-optimized URL for rendering this attachment on the client. This should be used for displaying attachments in apps. */
        url: string | null;
    }
    /**
     * The Mux video asset for video-type lessons, used for streaming playback. Null if this lesson has no hosted video.
     */
    interface VideoAsset {
        /** The Mux-provided ID of the asset */
        asset_id: string | null;
        /** Whether this asset contains only audio */
        audio_only: boolean;
        /** The datetime the mux asset was created. */
        created_at: string;
        /** The duration of the video in seconds */
        duration_seconds: number | null;
        /** The time at which the video finished uploading */
        finished_uploading_at: string | null;
        /** The unique identifier for the mux asset. */
        id: string;
        /** The public playback ID of the Mux asset */
        playback_id: string | null;
        /** The signed playback ID of the Mux asset */
        signed_playback_id: string | null;
        /** The signed storyboard playback token of the Mux asset */
        signed_storyboard_playback_token: string | null;
        /** The signed thumbnail playback token of the Mux asset */
        signed_thumbnail_playback_token: string | null;
        /** The signed video playback token of the Mux asset */
        signed_video_playback_token: string | null;
        /** The status of the Mux asset */
        status: Whop.MuxAssetStatuses;
        /** The datetime the mux asset was last updated. */
        updated_at: string;
    }
}