/**
 * Session model for Stack.Gallery Registry
 */

import * as plugins from '../plugins.ts';
import type { ISession } from '../interfaces/auth.interfaces.ts';
import { db } from './db.ts';

@plugins.smartdata.Collection(() => db)
export class Session extends plugins.smartdata.SmartDataDbDoc<Session, Session> implements ISession {
  @plugins.smartdata.unI()
  public id: string = '';

  @plugins.smartdata.svDb()
  @plugins.smartdata.index()
  public userId: string = '';

  @plugins.smartdata.svDb()
  public userAgent: string = '';

  @plugins.smartdata.svDb()
  public ipAddress: string = '';

  @plugins.smartdata.svDb()
  @plugins.smartdata.index()
  public isValid: boolean = true;

  @plugins.smartdata.svDb()
  public invalidatedAt?: Date;

  @plugins.smartdata.svDb()
  public invalidatedReason?: string;

  @plugins.smartdata.svDb()
  public lastActivityAt: Date = new Date();

  @plugins.smartdata.svDb()
  @plugins.smartdata.index()
  public createdAt: Date = new Date();

  /**
   * Create a new session
   */
  public static async createSession(data: {
    userId: string;
    userAgent: string;
    ipAddress: string;
  }): Promise<Session> {
    const session = new Session();
    session.id = await Session.getNewId();
    session.userId = data.userId;
    session.userAgent = data.userAgent;
    session.ipAddress = data.ipAddress;
    session.isValid = true;
    session.lastActivityAt = new Date();
    session.createdAt = new Date();
    await session.save();
    return session;
  }

  /**
   * Find valid session by ID
   */
  public static async findValidSession(sessionId: string): Promise<Session | null> {
    const session = await Session.getInstance({
      id: sessionId,
      isValid: true,
    });

    if (!session) return null;

    // Check if session is expired (7 days)
    const maxAge = 7 * 24 * 60 * 60 * 1000;
    if (Date.now() - session.createdAt.getTime() > maxAge) {
      await session.invalidate('expired');
      return null;
    }

    return session;
  }

  /**
   * Get all valid sessions for a user
   */
  public static async getUserSessions(userId: string): Promise<Session[]> {
    return await Session.getInstances({
      userId,
      isValid: true,
    });
  }

  /**
   * Invalidate all sessions for a user
   */
  public static async invalidateAllUserSessions(
    userId: string,
    reason: string = 'logout_all'
  ): Promise<number> {
    const sessions = await Session.getUserSessions(userId);
    for (const session of sessions) {
      await session.invalidate(reason);
    }
    return sessions.length;
  }

  /**
   * Invalidate this session
   */
  public async invalidate(reason: string): Promise<void> {
    this.isValid = false;
    this.invalidatedAt = new Date();
    this.invalidatedReason = reason;
    await this.save();
  }

  /**
   * Update last activity
   */
  public async touchActivity(): Promise<void> {
    this.lastActivityAt = new Date();
    await this.save();
  }

  /**
   * Lifecycle hook
   */
  public async beforeSave(): Promise<void> {
    if (!this.id) {
      this.id = await Session.getNewId();
    }
  }
}