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package com.flightfeather.uav.lightshare.service.impl
 
import com.flightfeather.uav.common.utils.DateUtil
import com.flightfeather.uav.common.utils.ExcelUtil
import com.flightfeather.uav.common.utils.FileExchange
import com.flightfeather.uav.common.utils.GsonUtils
import com.flightfeather.uav.domain.entity.*
import com.flightfeather.uav.domain.mapper.RealTimeDataGridMapper
import com.flightfeather.uav.domain.mapper.RealTimeDataMapper
import com.flightfeather.uav.domain.mapper.RealTimeDataUavMapper
import com.flightfeather.uav.domain.mapper.RealTimeDataVehicleMapper
import com.flightfeather.uav.lightshare.bean.*
import com.flightfeather.uav.lightshare.service.RealTimeDataService
import com.flightfeather.uav.model.epw.EPWDataPrep
import com.flightfeather.uav.repository.AirDataRepository
import com.flightfeather.uav.socket.bean.AirData
import com.flightfeather.uav.socket.eunm.UWDeviceType
import com.github.pagehelper.PageHelper
import org.apache.poi.xssf.streaming.SXSSFWorkbook
import org.springframework.stereotype.Service
import org.springframework.web.multipart.MultipartFile
import tk.mybatis.mapper.entity.Example
import java.io.ByteArrayInputStream
import java.text.SimpleDateFormat
import java.util.*
import javax.servlet.http.HttpServletResponse
 
@Service
class RealTimeDataServiceImpl(
    private val realTimeDataMapper: RealTimeDataMapper,
    private val airDataRepository: AirDataRepository,
    private val realTimeDataVehicleMapper: RealTimeDataVehicleMapper,
    private val realTimeDataUavMapper: RealTimeDataUavMapper,
    private val realTimeDataGridMapper: RealTimeDataGridMapper
) : RealTimeDataService {
 
    private var dateFormatter = SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
    private val fileExchange = FileExchange()
 
    override fun getSecondData(deviceCode: String?, startTime: String?, endTime: String?, page: Int?, perPage: Int?): BaseResponse<List<DataVo>> {
        val _perPage = perPage ?: 60
        val _page = page ?: 1
        val sTime = startTime?.let { dateFormatter.parse(it) }
        val eTime = endTime?.let { dateFormatter.parse(it) }
        val pageInfo = PageHelper.startPage<RealTimeData>(_page, _perPage)
        val result = mutableListOf<DataVo>()
 
        when (UWDeviceType.getType(deviceCode)) {
            UWDeviceType.VEHICLE -> {
                realTimeDataVehicleMapper.selectByExample(Example(RealTimeDataVehicle::class.java).apply {
                    getSecondDataExample(this, deviceCode, sTime, eTime)
                }).forEach { result.add(it.toDataVo()) }
            }
            UWDeviceType.UAV -> {
                realTimeDataUavMapper.selectByExample(Example(RealTimeDataUav::class.java).apply {
                    getSecondDataExample(this, deviceCode, sTime, eTime)
                }).forEach { result.add(it.toDataVo()) }
            }
            UWDeviceType.GRID -> {
                realTimeDataGridMapper.selectByExample(Example(RealTimeDataGrid::class.java).apply {
                    getSecondDataExample(this, deviceCode, sTime, eTime)
                }).forEach { result.add(it.toDataVo()) }
            }
            else -> {
                // 从原始数据表中获取数据
                realTimeDataMapper.selectByExample(Example(RealTimeData::class.java).apply {
                    getSecondDataExample(this, deviceCode, sTime, eTime)
                }).forEach {
                    if (it.longitude == null || it.latitude == null) {
                        return@forEach
                    }
                    result.add(it.toDataVo())
                }
            }
        }
 
        if (startTime == null && endTime == null) {
            result.reverse()
        }
        return BaseResponse(true, head = DataHead(pageInfo.pageNum, pageInfo.pages), data = result)
    }
 
    private fun getSecondDataExample(example: Example, deviceCode: String?, sTime: Date?, eTime: Date?) {
        example.createCriteria().apply {
            deviceCode?.let { andEqualTo("deviceCode", it) }
            sTime?.let { andGreaterThanOrEqualTo("dataTime", it) }
            eTime?.let { andLessThanOrEqualTo("dataTime", it) }
        }
        example.orderBy("dataTime").apply {
            // 当请求接口不传递起始时间,默认获取最新的数据
            if (sTime == null && eTime == null) {
                desc()
            }
        }
    }
 
    override fun getNextData(deviceCode: String, updateTime: String, page: Int?, perPage: Int?): BaseResponse<List<DataVo>> {
        val _perPage = perPage ?: 60
        val _page = page ?: 1
        val pageInfo = PageHelper.startPage<RealTimeData>(_page, _perPage)
        val result = mutableListOf<DataVo>()
 
        when (UWDeviceType.getType(deviceCode)) {
            UWDeviceType.VEHICLE -> {
                realTimeDataVehicleMapper.selectByExample(Example(RealTimeDataVehicle::class.java).apply {
                    getNextDataExample(this, deviceCode, updateTime)
                }).forEach { result.add(it.toDataVo()) }
            }
            UWDeviceType.UAV -> {
                realTimeDataUavMapper.selectByExample(Example(RealTimeDataUav::class.java).apply {
                    getNextDataExample(this, deviceCode, updateTime)
                }).forEach { result.add(it.toDataVo()) }
            }
            UWDeviceType.GRID -> {
                realTimeDataGridMapper.selectByExample(Example(RealTimeDataGrid::class.java).apply {
                    getNextDataExample(this, deviceCode, updateTime)
                }).forEach { result.add(it.toDataVo()) }
            }
            else -> {
                realTimeDataMapper.selectByExample(Example(RealTimeData::class.java).apply {
                    getNextDataExample(this, deviceCode, updateTime)
                }).forEach { result.add(it.toDataVo()) }
            }
        }
        return BaseResponse(true, head = DataHead(pageInfo.pageNum, pageInfo.pages), data = result)
    }
 
    private fun getNextDataExample(example: Example, deviceCode: String, updateTime: String) {
        example.createCriteria().andEqualTo("deviceCode", deviceCode)
            .andGreaterThan("dataTime", updateTime)
        example.orderBy("dataTime")
    }
 
    override fun importData(file: MultipartFile): BaseResponse<DataImportResult> {
        val f = ByteArrayInputStream(file.bytes)
        fileExchange.exchangeBoatData("0c0000000001", f).forEach {
            realTimeDataMapper.insert(it)
        }
        return BaseResponse(true, data = DataImportResult(""))
    }
 
    override fun outToWorkbook(deviceCode: String, startTime: String, endTime: String): SXSSFWorkbook {
        val sTime = dateFormatter.parse(startTime)
        val eTime = dateFormatter.parse(endTime)
        var page = 1
        var totalPage = 1
        val pageSize = 10000
        val workbook = SXSSFWorkbook()
        var rowIndex = 0
        while (page <= totalPage) {
            val pageInfo = PageHelper.startPage<RealTimeData>(page, pageSize)
            val r = realTimeDataMapper.selectByExample(Example(RealTimeData::class.java).apply {
                createCriteria().andEqualTo("deviceCode", deviceCode)
                    .apply {
                        sTime?.let { andGreaterThanOrEqualTo("dataTime", it) }
                        eTime?.let { andLessThanOrEqualTo("dataTime", it) }
                    }
            })
            if (r.isNotEmpty()) {
                val heads = if (page == 1) {
                    println("[${DateUtil.instance.dateToString(Date(), DateUtil.DateStyle.YYYY_MM_DD_HH_MM_SS)}] totalPage: ${pageInfo.pages}")
                    getTableTitle(r[0])
                } else {
                    emptyList()
                }
                val contents = getTableContents(r)
                print("[${DateUtil.instance.dateToString(Date(), DateUtil.DateStyle.YYYY_MM_DD_HH_MM_SS)}] currentPage: ${pageInfo.pageNum}......")
                rowIndex = ExcelUtil.write(heads, contents, workbook, row = rowIndex)
                println("output done")
            }
            totalPage = pageInfo.pages
            page++
        }
        return workbook
    }
 
    override fun outToExcel(deviceCode: String, startTime: String, endTime: String, response: HttpServletResponse): HttpServletResponse {
        val workbook = outToWorkbook(deviceCode, startTime, endTime)
 
        val out = response.outputStream
        workbook.write(out)
        workbook.close()
        out.flush()
        out.close()
 
        return response
    }
 
    fun getTableTitle(d: RealTimeData): List<Array<String>> {
        return listOf(d.toRowTitle())
    }
 
    fun getTableContents(list: List<RealTimeData>): List<Array<Any>> {
        val contents = mutableListOf<Array<Any>>()
        list.forEach {
            contents.add(it.toRowContent())
        }
        return contents
    }
 
    override fun dataPreprocessing(): BaseResponse<String> {
        val epwDataPrep = EPWDataPrep()
        val res = getSecondData("0b0000000002", "2021-10-23 19:00:00", "2021-10-23 20:00:00", 1, 5000)
        val dataList = res.data ?: emptyList()
        var count = 0
        dataList.forEach {
            val result = epwDataPrep.mDataPrep2(listOf(it))
            count += airDataRepository.savePrepData2(result)
            println("[${it.deviceCode}]: [${it.time}]")
            Thread.sleep(4000)
        }
        return BaseResponse(count > 0, data = "插入数据: ${count}条")
    }
}