smartvod/app/src/main/java/com/jld/vod/view/OrderActivity.kt

package com.jld.vod.view

import android.widget.Button
import android.widget.ImageView
import android.widget.TextView
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.lifecycleScope
import androidx.lifecycle.observe
import androidx.recyclerview.widget.GridLayoutManager
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.jld.kotilntest.room.adapter.OrderFoodAllAdapter
import com.jld.kotilntest.room.adapter.OrderFoodItemAdapter
import com.jld.vod.R
import com.jld.vod.base.BaseActivity
import com.jld.vod.model.bean.OrderFoodAllBean
import com.jld.vod.model.bean.OrderFoodItemBean
import com.jld.vod.utils.AppUtil
import com.jld.vod.utils.LogUtils
import com.jld.vod.utils.SharedPrefUtils
import com.jld.vod.viewmodel.OrderFoodAllViewModel
import kotlinx.coroutines.flow.collectLatest

class OrderActivity : BaseActivity() {
    private lateinit var orderFoodAllViewModel: OrderFoodAllViewModel
    private lateinit var mGridRecyclerView: RecyclerView
    private lateinit var mListRecyclerView: RecyclerView
    private lateinit var iv_order_back:ImageView
    private lateinit var totalprice:TextView
    private lateinit var bt_sure_shopping:Button
    private lateinit var bt_my_order:Button
    private var mOrderFoodAllBean:OrderFoodAllBean?= null

    override fun getLayoutId(): Int {
        return R.layout.activity_order
    }

    override fun initView() {
        super.initView()
        mGridRecyclerView = findViewById(R.id.rl_order_grid)
        mListRecyclerView = findViewById(R.id.rl_order_list)
        iv_order_back = findViewById(R.id.iv_order_back)
        bt_sure_shopping = findViewById(R.id.bt_sure_shopping)
        totalprice = findViewById(R.id.totalprice)
        bt_my_order = findViewById(R.id.bt_my_order)

        //初始化viewmodel
        orderFoodAllViewModel = ViewModelProvider.AndroidViewModelFactory(application).create(OrderFoodAllViewModel::class.java)
        //商品列表
        val gridlayoutManager = GridLayoutManager(this, 3)
        mGridRecyclerView!!.layoutManager = gridlayoutManager
        val gridAdapter = OrderFoodAllAdapter()
        mGridRecyclerView!!.adapter = gridAdapter


        //购物车列表
        val listAdapter = OrderFoodItemAdapter()
        mListRecyclerView.setLayoutManager(LinearLayoutManager(this));
        mListRecyclerView!!.adapter = listAdapter

        lifecycleScope.launchWhenCreated {
            orderFoodAllViewModel.orderfooditemList
                    .collectLatest { pagingData ->
                        listAdapter.submitData(pagingData)
                    }
        }

        //获取所有商品列表
        val lid = SharedPrefUtils.getString(this,"language_lid")
        val mid = SharedPrefUtils.getString(this,"RES_ORDER")
        LogUtils.logD("lid"+lid+"mid"+mid)
        if (lid != "" && mid !="") {
            lifecycleScope.launchWhenCreated {
                orderFoodAllViewModel.findOrderFoodAll(mid.toLong(), lid.toLong())
                        .collectLatest { pagingData ->
                            gridAdapter.submitData(pagingData)
                        }
            }
        }
        orderFoodAllViewModel.sumPrice()//总价
        /**
         * 选择商品
         */
        gridAdapter.setOnOrderClickListener(object :OrderFoodAllAdapter.IOrderItemClickListener{
            override fun onItemClickListener(food: OrderFoodAllBean?) {
                if (food != null)
                {
                    orderFoodAllViewModel.isAddShopping(food.oid)
                    mOrderFoodAllBean = food
                }
            }
        })

        /**
         * 添加商品至购物车
         */
        orderFoodAllViewModel.isAdd.observe(this@OrderActivity){res->
            if (res!= null)
            {
                if (res == true)
                {
                    orderFoodAllViewModel.updateAddoNum(mOrderFoodAllBean!!.oid,mOrderFoodAllBean!!.price.toFloat()!!)
                }else if(res == false)
                {
                    val item = OrderFoodItemBean(0,mOrderFoodAllBean!!.createTime, mOrderFoodAllBean!!.createUser, mOrderFoodAllBean!!.delState, mOrderFoodAllBean!!.imgUrl,
                                        mOrderFoodAllBean!!.mid, mOrderFoodAllBean!!.oName, mOrderFoodAllBean!!.oid, mOrderFoodAllBean!!.price, mOrderFoodAllBean!!.updateTime,
                                        mOrderFoodAllBean!!.updateUser, mOrderFoodAllBean!!.userId,1,mOrderFoodAllBean!!.price)

                    orderFoodAllViewModel.insertAll(item)
                }
            }
        }

        /**
         * 增加
         */
        listAdapter.setOnAddClickListener(object :OrderFoodItemAdapter.IAddItemClickListener{

            override fun onItemClickListener(oid: Long, price: String) {
                orderFoodAllViewModel.updateAddoNum(oid,price.toFloat())
            }
        })

        /**
         * 减少
         */
        listAdapter.setOnMinusClickListener(object :OrderFoodItemAdapter.IMinusItemClickListener{

            override fun onItemClickListener(oid: Long, price: String) {
                orderFoodAllViewModel.updateoMinusNum(oid,price.toFloat())
            }
        })

        /**
         * 总价展示
         */
        orderFoodAllViewModel.sumTotalPrice.observe(this@OrderActivity){res->
            totalprice.setText(getString(R.string.totalprice)+": $"+res)
        }

        /**
         * 确认购买
         */
        bt_sure_shopping.setOnClickListener {
            orderFoodAllViewModel.getAllOrderFood()//获取全部订单
        }

        /**
         * 开始下单
         */
        orderFoodAllViewModel.allOrderFood.observe(this){res->

            if (res != null)
            {
                val sb = StringBuilder()
                for ((index,e) in res.withIndex())
                {
                    if (index == 0)
                    {
                        sb.append("${e.oid}:"+"${e.price}:"+"${e.oNum}")
                    }else{
                        sb.append(",${e.oid}:"+"${e.price}:"+"${e.oNum}")
                    }
                }
                orderFoodAllViewModel.orderFoodShop(sb.toString(), AppUtil.getDeviceSN())
            }
        }
        /**
         * 返回状态
         */
        orderFoodAllViewModel.ordersListliveData.observe(this){res->
            //下单成功
            if (res)
            {
                orderFoodAllViewModel.delShopping()//清空购物车
                totalprice.setText(getString(R.string.totalprice)+": $ 0")
                go<MyOrderActivity>()
            }
        }

        bt_my_order.setOnClickListener {
            go<MyOrderActivity>()
        }
    }

    override fun initEvent() {
        super.initEvent()
        iv_order_back.setOnClickListener {
            this.onBackPressed()
        }
    }
}