package uk.beads.manager

import android.content.Intent
import android.os.Bundle
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import com.google.firebase.messaging.FirebaseMessaging
import uk.beads.manager.databinding.ActivityLoginBinding

class LoginActivity : AppCompatActivity() {
    private lateinit var binding: ActivityLoginBinding
    private var sessionReady = false

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityLoginBinding.inflate(layoutInflater)
        setContentView(binding.root)

        if (SessionManager.getToken(this) != null) {
            openOrders()
            return
        }

        binding.btnLogin.isEnabled = false
        binding.btnLogin.text = "Initializing..."

        SessionInitializer.init(this) {
            runOnUiThread {
                sessionReady = true
                binding.btnLogin.isEnabled = true
                binding.btnLogin.text = "Sign In"
            }
        }

        binding.btnLogin.setOnClickListener {
            if (!sessionReady) {
                Toast.makeText(this, "Still initializing...", Toast.LENGTH_SHORT).show()
                return@setOnClickListener
            }
            val username = binding.inputUsername.text.toString().trim()
            val password = binding.inputPassword.text.toString()
            if (username.isEmpty() || password.isEmpty()) {
                Toast.makeText(this, "Enter username and password", Toast.LENGTH_SHORT).show()
                return@setOnClickListener
            }

            Thread {
                try {
                    val response = ApiClient.login(username, password)
                    if (response.success && response.token != null) {
                        SessionManager.save(this, response.token, username)
                        FirebaseMessaging.getInstance().token.addOnCompleteListener { task ->
                            task.result?.let { ApiClient.registerDevice(this, it) }
                        }
                        runOnUiThread { openOrders() }
                    } else {
                        runOnUiThread {
                            Toast.makeText(this, response.message ?: "Login failed", Toast.LENGTH_SHORT).show()
                        }
                    }
                } catch (e: Exception) {
                    val msg = "${e.javaClass.simpleName}: ${e.message}"
                    e.printStackTrace()
                    runOnUiThread {
                        Toast.makeText(this, msg, Toast.LENGTH_LONG).show()
                    }
                }
            }.start()
        }
    }

    private fun openOrders() {
        startActivity(Intent(this, OrdersActivity::class.java))
        finish()
    }
}