package com.casic.br.view

import android.view.KeyEvent
import android.view.MenuItem
import androidx.fragment.app.Fragment
import androidx.viewpager.widget.ViewPager
import com.casic.br.R
import com.casic.br.adapter.ViewPagerAdapter
import com.casic.br.fragment.*
import com.gyf.immersionbar.ImmersionBar
import com.pengxh.kt.lite.base.KotlinBaseActivity
import com.pengxh.kt.lite.extensions.show
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : KotlinBaseActivity() {

    private var menuItem: MenuItem? = null
    private var fragmentPages: ArrayList<Fragment> = ArrayList()
    private var clickTime: Long = 0

    init {
        fragmentPages.add(HomePageFragment())
        fragmentPages.add(DevicePageFragment())
        fragmentPages.add(ShopPageFragment())
        fragmentPages.add(MessagePageFragment())
        fragmentPages.add(MinePageFragment())
    }

    override fun initLayoutView(): Int = R.layout.activity_main

    override fun setupTopBarLayout() {
        ImmersionBar.with(this).statusBarDarkFont(true).init()
    }

    override fun initData() {

    }

    override fun observeRequestState() {

    }

    override fun initEvent() {
        bottomNavigation.itemIconTintList = null
        bottomNavigation.setOnItemSelectedListener { menuItem ->
            when (menuItem.itemId) {
                R.id.nav_home -> {
                    mainViewPager.currentItem = 0
                }
                R.id.nav_device -> {
                    mainViewPager.currentItem = 1
                }
                R.id.nav_shop -> {
                    mainViewPager.currentItem = 2
                }
                R.id.nav_message -> {
                    mainViewPager.currentItem = 3
                }
                R.id.nav_mine -> {
                    mainViewPager.currentItem = 4
                }
            }
            false
        }
        mainViewPager.adapter = ViewPagerAdapter(fragmentPages, supportFragmentManager)
        mainViewPager.offscreenPageLimit = fragmentPages.size //缓存页数
        mainViewPager.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
            override fun onPageScrollStateChanged(state: Int) {

            }

            override fun onPageScrolled(
                position: Int,
                positionOffset: Float,
                positionOffsetPixels: Int
            ) {

            }

            override fun onPageSelected(position: Int) {
                if (menuItem != null) {
                    menuItem!!.isChecked = false
                } else {
                    bottomNavigation.menu.getItem(0).isChecked = false
                }
                menuItem = bottomNavigation.menu.getItem(position)
                menuItem!!.isChecked = true
            }
        })
    }

    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
        return if (keyCode == KeyEvent.KEYCODE_BACK) {
            if (System.currentTimeMillis() - clickTime > 2000) {
                "再按一次退出程序".show(this)
                clickTime = System.currentTimeMillis()
                true
            } else {
                super.onKeyDown(keyCode, event)
            }
        } else super.onKeyDown(keyCode, event)
    }
}