package farm.hobbs.kioskbrowser

import android.os.Bundle
import android.widget.Toast
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatActivity
import androidx.datastore.preferences.core.edit
import androidx.datastore.preferences.core.stringPreferencesKey
import farm.hobbs.kioskbrowser.databinding.ActivityAdminBinding
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.runBlocking
import android.text.InputType
import android.widget.EditText

class AdminActivity : AppCompatActivity() {

    private lateinit var binding: ActivityAdminBinding
    private val adminPin = "1234" // Default PIN - should be configurable

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        
        // Require PIN before showing settings
        showPinDialog()
    }

    private fun showPinDialog() {
        val input = EditText(this).apply {
            inputType = InputType.TYPE_CLASS_NUMBER or InputType.TYPE_NUMBER_VARIATION_PASSWORD
            hint = "Enter Admin PIN"
        }

        AlertDialog.Builder(this)
            .setTitle("Admin Access")
            .setMessage("Enter PIN to access settings")
            .setView(input)
            .setPositiveButton("OK") { _, _ ->
                if (input.text.toString() == getStoredPin()) {
                    setupUI()
                } else {
                    Toast.makeText(this, "Invalid PIN", Toast.LENGTH_SHORT).show()
                    finish()
                }
            }
            .setNegativeButton("Cancel") { _, _ -> finish() }
            .setCancelable(false)
            .show()
    }

    private fun getStoredPin(): String {
        return runBlocking {
            dataStore.data.first()[stringPreferencesKey("admin_pin")] ?: adminPin
        }
    }

    private fun setupUI() {
        binding = ActivityAdminBinding.inflate(layoutInflater)
        setContentView(binding.root)

        loadCurrentSettings()

        binding.btnSave.setOnClickListener {
            saveSettings()
        }

        binding.btnExit.setOnClickListener {
            finish()
        }

        binding.btnExitKiosk.setOnClickListener {
            // Exit kiosk mode completely
            finishAffinity()
        }
    }

    private fun loadCurrentSettings() {
        runBlocking {
            dataStore.data.first().let { prefs ->
                binding.etHomepage.setText(
                    prefs[stringPreferencesKey("homepage")] ?: "https://hobbs.farm"
                )
                binding.etWhitelist.setText(
                    prefs[stringPreferencesKey("whitelist")] ?: "hobbs.farm"
                )
                binding.etIdleTimeout.setText(
                    prefs[stringPreferencesKey("idle_timeout")] ?: "300"
                )
                binding.etAdminPin.setText(
                    prefs[stringPreferencesKey("admin_pin")] ?: "1234"
                )
            }
        }
    }

    private fun saveSettings() {
        runBlocking {
            dataStore.edit { prefs ->
                prefs[stringPreferencesKey("homepage")] = binding.etHomepage.text.toString()
                prefs[stringPreferencesKey("whitelist")] = binding.etWhitelist.text.toString()
                prefs[stringPreferencesKey("idle_timeout")] = binding.etIdleTimeout.text.toString()
                prefs[stringPreferencesKey("admin_pin")] = binding.etAdminPin.text.toString()
            }
        }
        Toast.makeText(this, "Settings saved", Toast.LENGTH_SHORT).show()
    }
}