import {ObjectId} from 'mongodb';

export enum AuditCategory {
  COURSE = 'COURSE',
  COURSE_VERSION = 'COURSE_VERSION',
  MODULE = 'MODULE',
  SECTION = 'SECTION',
  ITEM = 'ITEM',
  QUIZ = 'QUIZ',
  QUESTION = 'QUESTION',
  QUESTION_BANK = 'QUESTION_BANK',
  FLAGS = 'FLAGS',
  ENROLLMENT = 'ENROLLMENT',
  REGISTRATION = 'REGISTRATION',
  INVITE = 'INVITE',
  COURSE_SETTINGS = 'COURSE_SETTINGS',
  PROGRESS = 'PROGRESS',
  ANNOUNCEMENT = 'ANNOUNCEMENT',
  COHORT = 'COHORT',
  EJECTION_POLICY = 'EJECTION_POLICY',
}

export enum AuditAction {
  // Course
  COURSE_CREATE = 'COURSE_CREATE',
  COURSE_UPDATE = 'COURSE_UPDATE',
  COURSE_DELETE = 'COURSE_DELETE',

  // Course Version
  COURSE_VERSION_CREATE = 'COURSE_VERSION_CREATE',
  COURSE_VERSION_UPDATE = 'COURSE_VERSION_UPDATE',
  COURSE_VERSION_DELETE = 'COURSE_VERSION_DELETE',
  COURSE_VERSION_CLONE = 'COURSE_VERSION_CLONE',
  COURSE_VERSION_STATUS_UPDATE = 'COURSE_VERSION_STATUS_UPDATE',

  // Module
  MODULE_ADD = 'MODULE_ADD',
  MODULE_UPDATE = 'MODULE_UPDATE',
  MODULE_DELETE = 'MODULE_DELETE',
  MODULE_HIDE = 'MODULE_HIDE',
  MODULE_REORDER = 'MODULE_REORDER',

  // Section
  SECTION_ADD = 'SECTION_ADD',
  SECTION_UPDATE = 'SECTION_UPDATE',
  SECTION_DELETE = 'SECTION_DELETE',
  SECTION_HIDE = 'SECTION_HIDE',
  SECTION_REORDER = 'SECTION_REORDER',

  // Item
  ITEM_ADD = 'ITEM_ADD',
  ITEM_UPDATE = 'ITEM_UPDATE',
  ITEM_DELETE = 'ITEM_DELETE',
  ITEM_HIDE = 'ITEM_HIDE',
  ITEM_REORDER = 'ITEM_REORDER',
  ITEM_MAKE_OPTIONAL = 'ITEM_MAKE_OPTIONAL',
  ITEM_BULK_PROCESS = 'ITEM_BULK_PROCESS',

  // Question / Bank
  QUESTION_ADD = 'QUESTION_ADD',
  QUESTION_UPDATE = 'QUESTION_UPDATE',
  QUESTION_DELETE = 'QUESTION_DELETE',
  QUESTION_BANK_CREATE = 'QUESTION_BANK_CREATE',
  QUESTION_BANK_UPDATE = 'QUESTION_BANK_UPDATE',
  QUESTION_BANK_DELETE = 'QUESTION_BANK_DELETE',

  // Flags
  FLAG_STATUS_UPDATE = 'FLAG_STATUS_UPDATE',

  // Enrollment / Progress
  ENROLLMENT_ADD = 'ENROLLMENT_ADD',
  ENROLLMENT_REMOVE = 'ENROLLMENT_REMOVE',
  BULK_ENROLLMENT_REMOVE = 'BULK_ENROLLMENT_REMOVE',
  ENROLLMENT_REMOVE_INSTRUCTOR = 'ENROLLMENT_REMOVE_INSTRUCTOR',
  ENROLLMENT_REMOVE_STUDENT = 'ENROLLMENT_REMOVE_STUDENT',
  ENROLLMENT_DISABLE = 'ENROLLMENT_DISABLE',
  ENROLLMENT_ENABLE = 'ENROLLMENT_ENABLE',
  BULK_ENROLLMENT_DISABLE = 'BULK_ENROLLMENT_DISABLE',
  BULK_ENROLLMENT_ENABLE = 'BULK_ENROLLMENT_ENABLE',
  PROGRESS_RESET = 'PROGRESS_RESET',
  PROGRESS_RECALCULATE = 'PROGRESS_RECALCULATE',

  // Registration

  REGISTRATION_APPROVE = 'REGISTRATION_APPROVE',
  REGISTRATION_REJECT = 'REGISTRATION_REJECT',
  REGISTRATION_FORM_UPDATE = 'REGISTRATION_FORM_UPDATE',

  // Invite
  INVITE_SEND_SINGLE = 'INVITE_SEND_SINGLE',
  INVITE_SEND_BULK = 'INVITE_SEND_BULK',
  INVITE_RESEND = 'INVITE_RESEND',
  INVITE_REMOVE = 'INVITE_REMOVE',

  // Settings
  COURSE_SETTINGS_UPDATE = 'COURSE_SETTINGS_UPDATE',

  // Announcements
  ANNOUNCEMENT_CREATE = 'ANNOUNCEMENT_CREATE',
  ANNOUNCEMENT_UPDATE = 'ANNOUNCEMENT_UPDATE',
  ANNOUNCEMENT_DELETE = 'ANNOUNCEMENT_DELETE',
  ANNOUNCEMENT_HIDE = 'ANNOUNCEMENT_HIDE',
  ANNOUNCEMENT_UNHIDE = 'ANNOUNCEMENT_UNHIDE',

  // Reports / Downloads
  // DOWNLOAD_PROJECT_SUBMISSIONS = "DOWNLOAD_PROJECT_SUBMISSIONS",
  // DOWNLOAD_QUIZ_SUBMISSIONS = "DOWNLOAD_QUIZ_SUBMISSIONS",
  // DOWNLOAD_QUIZ_REPORT = "DOWNLOAD_QUIZ_REPORT",

  COHORT_ADD = 'COHORT_ADD',
  COHORT_UPDATE = 'COHORT_UPDATE',
  COHORT_DELETE = 'COHORT_DELETE',

  EJECTION_POLICY_CREATE = 'EJECTION_POLICY_CREATE',
  EJECTION_POLICY_UPDATE = 'EJECTION_POLICY_UPDATE',
  EJECTION_POLICY_TOGGLE = 'EJECTION_POLICY_TOGGLE',
  EJECTION_POLICY_DELETE = 'EJECTION_POLICY_DELETE',
  COHORT_MOVE = 'COHORT_MOVE',
}

export enum OutComeStatus {
  SUCCESS = 'SUCCESS',
  FAILED = 'FAILED',
  PARTIAL = 'PARTIAL',
}

export interface InstructorAuditTrail {
  category: AuditCategory;
  action: AuditAction;
  actor: {
    id: string | ObjectId;
    name: string;
    email: string;
    role?: string;
  };

  context: {
    courseId?: string | ObjectId;
    courseVersionId?: string | ObjectId;
    moduleId?: string | ObjectId;
    sectionId?: string | ObjectId;
    itemId?: string | ObjectId;
    itemType?: string;
    quizId?: string | ObjectId;
    questionId?: string | ObjectId;
    questionBankId?: string | ObjectId;
    flagId?: string | ObjectId;
    enrollmentId?: string | ObjectId;
    registrationId?: string | ObjectId;
    inviteId?: string | ObjectId;
    announcementId?: string | ObjectId;
    relatedIds?: Record<string, ObjectId | string>;
    userId?: string | ObjectId;
    cohortId?: string | ObjectId;
    policyId?: string | ObjectId;
  };

  changes?: {
    before?: Record<string, any>;
    after?: Record<string, any>;
  };

  outcome: {
    status: OutComeStatus;
    errorCode?: string;
    errorMessage?: string;
  };

  createdAt: Date;
}