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path: root/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/UserInformationActivity.kt
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package mx.trackermap.TrackerMap.android.session

import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Bundle
import android.view.View
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.preference.PreferenceManager
import com.zhuinden.liveevent.observe
import kotlinx.coroutines.DelicateCoroutinesApi
import mx.trackermap.TrackerMap.android.R
import mx.trackermap.TrackerMap.android.databinding.UserInformationActivityBinding
import mx.trackermap.TrackerMap.controllers.SessionController
import org.koin.androidx.viewmodel.ext.android.viewModel
import kotlin.time.ExperimentalTime

@DelicateCoroutinesApi
@ExperimentalTime
class UserInformationActivity : AppCompatActivity() {

    private var _binding: UserInformationActivityBinding? = null
    private val binding get() = _binding!!
    private val userInformationViewModel: UserInformationViewModel by viewModel()

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

        initialize()
    }

    private fun initialize() {
        setupObservers()
        setupEvents()

        userInformationViewModel.fetchUserInfo()

        // Show version number
        val pm = applicationContext.packageManager
        val pkgName = applicationContext.packageName
        try {
            val pkgInfo = pm.getPackageInfo(pkgName, 0)
            binding.appVersion.text = pkgInfo.versionName
        } catch (e: PackageManager.NameNotFoundException) {
            e.printStackTrace()
        }
    }

    private fun setupObservers() {
        userInformationViewModel.loginState.observe(this) { userInformation ->
            when (userInformation) {
                SessionController.LoginState.Loading -> setLoading(true)
                SessionController.LoginState.Failure -> failure()
                SessionController.LoginState.SignOut -> signOut()
                else -> {}
            }
        }
        userInformationViewModel.user.observe(this) { user ->
            setLoading(false)
            binding.apply {
                usernameInfo.text = user.name ?: ""
                emailInfo.text = user.email ?: ""
                idInfo.text = "${user.id ?: "--"}"
                adminInfo.text = "${user.administrator}"
                serverInfo.text = "${
                    PreferenceManager
                        .getDefaultSharedPreferences(this@UserInformationActivity)
                        .getString(LoginFragment.PREFERENCE_SERVER_URL, getString(R.string.default_server_url))
                }"
                user.deviceLimit?.let {
                    deviceLimitInfo.text = "${user.deviceLimit ?: "--"}"
                    if (it > 0) {
                        deviceLimitInfo.visibility = View.VISIBLE
                        deviceLimitInfo.visibility = View.VISIBLE
                    }
                }
            }
        }
    }

    private fun setupEvents() {
        binding.closeButton.setOnClickListener { onBackPressed() }
        binding.signoutButton.setOnClickListener {
            userInformationViewModel.signOut(PreferenceManager
                .getDefaultSharedPreferences(this)
                .getString(LoginFragment.PREFERENCE_TOKEN, null))
        }
        binding.sourceCodeButton.setOnClickListener {
            openURL(getString(R.string.app_source_code_url))
        }
        binding.websiteButton.setOnClickListener {
            openURL(getString(R.string.app_website_url))
        }
    }

    private fun setLoading(isLoading: Boolean) {
        binding.infoLoading.root.visibility = if (isLoading) View.VISIBLE else View.GONE
        binding.userInfoCard.visibility = if (isLoading) View.GONE else View.VISIBLE
    }

    private fun failure() {
        setLoading(false)

        Toast.makeText(this, "Something went wrong...", Toast.LENGTH_LONG).show()
    }

    private fun openURL(url: String) {
        val uri = Uri.parse(url)
        val intent = Intent(Intent.ACTION_VIEW, uri)
        startActivity(intent)
    }

    private fun signOut() {
        val intent = Intent(applicationContext, LoginActivity::class.java)
        intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
        startActivity(intent)
        finish()
    }

}