import type { RowDataPacket } from 'mysql2'
import { db, DB } from './db'

export interface ActivityEntry {
  user: string
  actionKey: string // clave de acción traducible (p.ej. 'tokenRequested')
  ip: string
  date: Date
}
export interface RealmConnection {
  ip: string
  date: Date
}
export interface WebConnection {
  user: string
  statusKey: 'success' | 'wrongPassword' | 'other'
  statusRaw: string // texto original (para el caso 'other')
  ip: string
  date: Date
}

/** Clasifica el estado guardado del intento de login web en una clave traducible. */
function webStatusKey(raw: string): 'success' | 'wrongPassword' | 'other' {
  const s = (raw || '').toLowerCase()
  if (s.includes('exito') || s.includes('éxito') || s.includes('success')) return 'success'
  if (s.includes('fracaso') || s.includes('fail') || s.includes('incorrect')) return 'wrongPassword'
  return 'other'
}

/**
 * Historial de seguridad de una cuenta, en tres bloques:
 *  - **Actividad**: acciones de seguridad (solicitudes de token) desde `securitytoken`.
 *  - **Conexiones (Reino)**: `acore_auth.logs_ip_actions` (histórico de IP) + la última
 *    conexión conocida (`account.last_ip`/`last_login`) si aporta una IP nueva.
 *  - **Conexiones (Web)**: cada intento de login web desde `loginattempt`.
 * Cada consulta es tolerante a fallos (devuelve [] si la tabla no existe).
 */
export async function getSecurityHistory(
  accountId: number,
  displayUser: string,
  email: string,
  limit = 100,
): Promise<{ activity: ActivityEntry[]; realm: RealmConnection[]; web: WebConnection[] }> {
  const activity: ActivityEntry[] = []
  const realm: RealmConnection[] = []
  const web: WebConnection[] = []
  if (!accountId) return { activity, realm, web }

  // 1) Actividad: solicitudes de token de seguridad.
  try {
    const [rows] = await db(DB.default).query<RowDataPacket[]>(
      'SELECT created_at, ip_address FROM securitytoken WHERE user_id = ? ORDER BY created_at DESC LIMIT ?',
      [accountId, limit],
    )
    for (const r of rows) {
      activity.push({ user: displayUser, actionKey: 'tokenRequested', ip: String(r.ip_address || '—'), date: new Date(r.created_at) })
    }
  } catch {
    /* tabla ausente */
  }

  // 2) Conexiones al reino: histórico de IP + última conexión conocida.
  try {
    const [rows] = await db(DB.auth).query<RowDataPacket[]>(
      'SELECT ip, unixtime FROM logs_ip_actions WHERE account_id = ? ORDER BY unixtime DESC LIMIT ?',
      [accountId, limit],
    )
    for (const r of rows) realm.push({ ip: String(r.ip), date: new Date(Number(r.unixtime) * 1000) })
  } catch {
    /* tabla ausente */
  }
  try {
    const [acc] = await db(DB.auth).query<RowDataPacket[]>(
      'SELECT last_ip, last_login FROM account WHERE id = ? LIMIT 1',
      [accountId],
    )
    const a = acc[0]
    if (a && a.last_ip && a.last_login) {
      // Añade la última conexión si no coincide con la IP más reciente ya listada.
      if (realm.length === 0 || realm[0].ip !== String(a.last_ip)) {
        realm.unshift({ ip: String(a.last_ip), date: new Date(a.last_login) })
      }
    }
  } catch {
    /* tabla ausente */
  }
  realm.sort((x, y) => y.date.getTime() - x.date.getTime())

  // 3) Conexiones web: intentos de login (por email de la cuenta).
  if (email) {
    try {
      const [rows] = await db(DB.default).query<RowDataPacket[]>(
        'SELECT username, status, ip_address, timestamp FROM loginattempt WHERE username = ? ORDER BY timestamp DESC LIMIT ?',
        [email, limit],
      )
      for (const r of rows) {
        const raw = String(r.status || '')
        web.push({ user: displayUser, statusKey: webStatusKey(raw), statusRaw: raw, ip: String(r.ip_address || '—'), date: new Date(r.timestamp) })
      }
    } catch {
      /* tabla ausente */
    }
  }

  return { activity, realm, web }
}
