package org.pacien.tincapp.activities

import android.content.Intent
import android.os.Bundle
import android.support.v4.widget.SwipeRefreshLayout
import android.view.Menu
import android.view.MenuItem
import android.view.View
import android.widget.AdapterView
import android.widget.ArrayAdapter
import android.widget.TextView
import kotlinx.android.synthetic.main.base.*
import kotlinx.android.synthetic.main.fragment_list_view.*
import kotlinx.android.synthetic.main.fragment_network_list_header.*
import org.pacien.tincapp.R
import org.pacien.tincapp.context.AppPaths
import org.pacien.tincapp.extensions.Android.setElements
import org.pacien.tincapp.service.TincVpnService

/**
 * @author pacien
 */
class StartActivity : BaseActivity(), AdapterView.OnItemClickListener, SwipeRefreshLayout.OnRefreshListener {

    private var networkListAdapter: ArrayAdapter<String>? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        networkListAdapter = ArrayAdapter(this, R.layout.fragment_list_item)
        layoutInflater.inflate(R.layout.fragment_list_view, main_content)
        list_wrapper.setOnRefreshListener(this)
        list.addHeaderView(layoutInflater.inflate(R.layout.fragment_network_list_header, list, false), null, false)
        list.addFooterView(View(this), null, false)
        list.adapter = networkListAdapter
        list.onItemClickListener = this
    }

    override fun onCreateOptionsMenu(m: Menu): Boolean {
        menuInflater.inflate(R.menu.menu_start, m)
        return super.onCreateOptionsMenu(m)
    }

    override fun onDestroy() {
        networkListAdapter = null
        super.onDestroy()
    }

    override fun onStart() {
        super.onStart()
        onRefresh()
    }

    override fun onResume() {
        super.onResume()
        if (TincVpnService.isConnected()) openStatusActivity()
    }

    override fun onRefresh() {
        val networks = AppPaths.confDir()?.list()?.toList() ?: emptyList()
        runOnUiThread {
            networkListAdapter?.setElements(networks)
            setPlaceholderVisibility()
            list_wrapper.isRefreshing = false
        }
    }

    override fun onItemClick(parent: AdapterView<*>?, view: View?, position: Int, id: Long) =
            LaunchActivity.connect((view as TextView).text.toString())

    fun openConfigureActivity(@Suppress("UNUSED_PARAMETER") i: MenuItem) =
            startActivity(Intent(this, ConfigureActivity::class.java))

    fun openStatusActivity() =
            startActivity(Intent(this, StatusActivity::class.java)
                    .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK))

    private fun setPlaceholderVisibility() = if (networkListAdapter?.isEmpty != false) {
        network_list_placeholder.text = getListPlaceholderText()
        network_list_placeholder.visibility = View.VISIBLE
    } else {
        network_list_placeholder.visibility = View.GONE
    }

    private fun getListPlaceholderText() =
            if (!AppPaths.storageAvailable()) getText(R.string.message_storage_unavailable)
            else getText(R.string.message_no_network_configuration_found)

}