// Obfuscated configuration
const config = {
  target: atob("MTk4Nw=="),
  // Base64 encoded URL: "https://ntna/"
  destination: atob("aHR0cHM6Ly9uZXh0LXRreS5uZXRsaWZ5LmFwcC8="),
  maxAttempts: 3,
}

class SecureAuth {
  constructor() {
    this.attempts = 0
    this.inputs = document.querySelectorAll(".pin-input")
    this.submitBtn = document.getElementById("submitBtn")
    this.errorMessage = document.getElementById("errorMessage")
    this.loading = document.getElementById("loading")
    this.currentPin = ""

    this.init()
  }

  init() {
    this.setupEventListeners()
    this.inputs[0].focus()
  }

  setupEventListeners() {
    this.inputs.forEach((input, index) => {
      input.addEventListener("input", (e) => this.handleInput(e, index))
      input.addEventListener("keydown", (e) => this.handleKeydown(e, index))
      input.addEventListener("paste", (e) => this.handlePaste(e))
    })

    this.submitBtn.addEventListener("click", () => this.validateAccess())

    // Prevent right-click context menu
    document.addEventListener("contextmenu", (e) => e.preventDefault())

    // Prevent F12, Ctrl+Shift+I, Ctrl+U
    document.addEventListener("keydown", (e) => {
      if (e.key === "F12" || (e.ctrlKey && e.shiftKey && e.key === "I") || (e.ctrlKey && e.key === "u")) {
        e.preventDefault()
        this.showError("Access denied")
      }
    })
  }

  handleInput(e, index) {
    const value = e.target.value

    if (value && /^\d$/.test(value)) {
      e.target.classList.add("filled")
      this.clearError()

      if (index < this.inputs.length - 1) {
        this.inputs[index + 1].focus()
      }
    } else {
      e.target.value = ""
      e.target.classList.remove("filled")
    }

    this.updateCurrentPin()
  }

  handleKeydown(e, index) {
    if (e.key === "Backspace" && !e.target.value && index > 0) {
      this.inputs[index - 1].focus()
      this.inputs[index - 1].value = ""
      this.inputs[index - 1].classList.remove("filled")
    }

    if (e.key === "Enter") {
      this.validateAccess()
    }

    // Only allow numbers
    if (!/^\d$/.test(e.key) && !["Backspace", "Delete", "Tab", "Enter"].includes(e.key)) {
      e.preventDefault()
    }
  }

  handlePaste(e) {
    e.preventDefault()
    const paste = (e.clipboardData || window.clipboardData).getData("text")

    if (/^\d{4}$/.test(paste)) {
      ;[...paste].forEach((digit, index) => {
        if (this.inputs[index]) {
          this.inputs[index].value = digit
          this.inputs[index].classList.add("filled")
        }
      })
      this.updateCurrentPin()
    }
  }

  updateCurrentPin() {
    this.currentPin = Array.from(this.inputs)
      .map((input) => input.value)
      .join("")
  }

  validateAccess() {
    this.updateCurrentPin()

    if (this.currentPin.length !== 4) {
      this.showError("Please enter all 4 digits")
      return
    }

    // Obfuscated validation
    const hash = btoa(this.currentPin)
    const targetHash = btoa(config.target)

    if (hash === targetHash) {
      this.showLoading()
      setTimeout(() => {
        // Additional obfuscation layer
        const url = config.destination
        window.location.href = url
      }, 1000)
    } else {
      this.attempts++
      this.handleFailedAttempt()
    }
  }

  handleFailedAttempt() {
    this.inputs.forEach((input) => {
      input.classList.add("error")
      input.value = ""
      input.classList.remove("filled")
    })

    setTimeout(() => {
      this.inputs.forEach((input) => input.classList.remove("error"))
    }, 500)

    if (this.attempts >= config.maxAttempts) {
      this.showError("Too many failed attempts. Access blocked.")
      this.submitBtn.disabled = true
      setTimeout(() => {
        window.location.reload()
      }, 3000)
    } else {
      this.showError(`Invalid PIN. ${config.maxAttempts - this.attempts} attempts remaining.`)
    }

    this.inputs[0].focus()
    this.currentPin = ""
  }

  showError(message) {
    this.errorMessage.textContent = message
    this.errorMessage.classList.add("show")
    setTimeout(() => {
      this.errorMessage.classList.remove("show")
    }, 3000)
  }

  clearError() {
    this.errorMessage.classList.remove("show")
  }

  showLoading() {
    this.submitBtn.style.display = "none"
    this.loading.classList.add("show")
  }
}

// Initialize when DOM is loaded
document.addEventListener("DOMContentLoaded", () => {
  new SecureAuth()
})

// Additional obfuscation - clear console periodically
setInterval(() => {
  console.clear()
}, 1000)

// Disable developer tools detection
;(() => {
  const devtools = { open: false, orientation: null }
  const threshold = 160

  setInterval(() => {
    if (window.outerHeight - window.innerHeight > threshold || window.outerWidth - window.innerWidth > threshold) {
      if (!devtools.open) {
        devtools.open = true
        window.location.reload()
      }
    } else {
      devtools.open = false
    }
  }, 500)
})()