package cn.flightfeather.supervision.business.report
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import cn.flightfeather.supervision.common.utils.ExcelUtil
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import cn.flightfeather.supervision.business.report.bean.BaseTemplateResult
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import org.apache.poi.hssf.usermodel.HSSFWorkbook
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import java.io.FileOutputStream
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import java.io.OutputStream
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import java.util.*
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import kotlin.reflect.full.createInstance
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/**
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* excel报告模板基类
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* 单个数据源
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*/
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// FIXME: 2022/7/15 模板简化：只有表头会涉及单元格合并，默认表内容中没有合并
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abstract class BaseTemplate(val dataSource: DataSource) : BaseOutputInterface {
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//列组合
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abstract val cols: List<BaseCols>
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//模板名称
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abstract val templateName: String
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// 中间结果对象 by hc 2024.12.5
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abstract var resultObjects: MutableList<BaseTemplateResult>
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// 执行状态 by hc 2024.12.5
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var isExecuted: Boolean = false
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//表头
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val head = mutableListOf<MutableList<ExcelUtil.MyCell>>()
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//内容
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val contents = mutableListOf<MutableList<Any>>()
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// 生成Template相关数据 by hc 2024.12.9
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open fun genData() {
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//数据源重置
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dataSource.reset()
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//合成表头
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cols.forEach {
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it.combineHead(head, dataSource)
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}
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//合成数据
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dataSource.loop { index, rowData ->
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cols.forEach { col ->
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val r = col.getOneRow(rowData)
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if (index >= contents.size) {
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contents.add(mutableListOf())
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}
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contents[index].addAll(r)
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}
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}
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}
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open fun execute() {
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try {
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genData()
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// 没有错误正常运行结束
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isExecuted = true
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} catch (e: Exception) {
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// TODO: handle exception
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}
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}
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override fun toWorkBook(wb: HSSFWorkbook) {
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val f = tableFormat()
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ExcelUtil.write(f.first, f.second, wb, templateName)
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}
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override fun toOutputStream(out: OutputStream, sheetName: String?) {
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val f = tableFormat()
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ExcelUtil.write2(out, f.first, f.second, sheetName ?: templateName)
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}
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/**
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* 输出到对象
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* hc 2024.12.06
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*/
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fun toObject(): MutableList<BaseTemplateResult> {
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if (!isExecuted) {
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execute()
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}
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// 获得和template对应的中间结果数据对象KCLASS对象
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val classType = resultObjects.first()::class
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try {
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// 清空数组
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resultObjects.clear()
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contents.forEach {
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// 创建对应的中间结果数据对象
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val resultObj = classType.createInstance()
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resultObj.setProperties(it)
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resultObjects.add(resultObj)
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}
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}catch (e: Exception) {
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// 如果出现异常恢复到初始状态 避免下次调用toObject数据重复
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resultObjects.clear()
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resultObjects.add(classType.createInstance())
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}
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return resultObjects
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}
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/**
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* 输出为文档
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*/
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override fun toFile(path: String) {
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val fileName = "${dataSource.areaName()}-${templateName}-${Date().time}.xls"
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val out = FileOutputStream(path + fileName)
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toOutputStream(out)
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}
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/**
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* 表头和表内容格式转化
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*/
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fun tableFormat(): Pair<MutableList<Array<Any>>, MutableList<Array<Any>>> {
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val h = mutableListOf<Array<Any>>()
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val c = mutableListOf<Array<Any>>()
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head.forEach { h.add(it.toTypedArray()) }
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contents.forEach { c.add(it.toTypedArray()) }
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val index = c[0][0]
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//按照第一列进行排序
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if (index is Int) {
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c.sortBy {
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if (it[0] is Int) {
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it[0] as Int
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} else {
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0
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}
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}
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} else {
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c.sortBy {
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it[0].toString()
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}
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}
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return Pair(h, c)
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}
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}
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