FirstApp2.git - Gitblit

			@@ -1,38 +1,553 @@
			package com.example.firstapp.ui.dashboard

			import com.example.firstapp.R
			import android.os.Bundle
			import android.view.LayoutInflater
			import android.view.View
			import android.view.ViewGroup
			import android.widget.TextView
			import androidx.fragment.app.Fragment
			import androidx.lifecycle.ViewModelProvider
			import androidx.fragment.app.viewModels
			import com.example.firstapp.databinding.FragmentDashboardBinding
			import com.google.android.material.tabs.TabLayout
			import androidx.recyclerview.widget.LinearLayoutManager
			import com.example.firstapp.adapter.PackageAdapter
			import com.github.mikephil.charting.charts.BarChart
			import com.github.mikephil.charting.charts.PieChart
			import com.github.mikephil.charting.components.Legend
			import com.github.mikephil.charting.components.XAxis
			import com.github.mikephil.charting.data.*
			import com.github.mikephil.charting.formatter.ValueFormatter
			import java.util.*
			import java.text.SimpleDateFormat
			import android.graphics.Color
			import android.widget.GridLayout
			import com.example.firstapp.model.DailyStat
			import com.github.mikephil.charting.components.YAxis

			class DashboardFragment : Fragment() {

			private var _binding: FragmentDashboardBinding? = null

			// This property is only valid between onCreateView and
			// onDestroyView.
			private val binding get() = _binding!!
			private val packageAdapter = PackageAdapter()
			private var currentDate = Calendar.getInstance()
			private var currentDateType = DateType.DAY
			private lateinit var barChart: BarChart
			private lateinit var pieChart: PieChart
			private lateinit var heatmapView: View
			enum class DateType {
			DAY, WEEK, MONTH, YEAR
			}
			private val viewModel: DashboardViewModel by viewModels()

			override fun onCreateView(
			inflater: LayoutInflater,
			container: ViewGroup?,
			savedInstanceState: Bundle?
			): View {
			val dashboardViewModel =
			ViewModelProvider(this).get(DashboardViewModel::class.java)

			_binding = FragmentDashboardBinding.inflate(inflater, container, false)
			val root: View = binding.root
			return binding.root
			}

			val textView: TextView = binding.textDashboard
			dashboardViewModel.text.observe(viewLifecycleOwner) {
			textView.text = it
			override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
			super.onViewCreated(view, savedInstanceState)

			//渲染包裹列表
			setupRecyclerView()
			//初始化tab内容和数据
			setupTabLayout()
			//日期调整
			setupDatePicker()
			setupView(view)
			updateDateDisplay()
			loadPackages()
			}

			private fun setupRecyclerView() {
			binding.recyclerPackages.apply {
			layoutManager = LinearLayoutManager(context)
			adapter = packageAdapter
			}
			return root
			}

			private fun setupTabLayout() {
			binding.tabDateRange.addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
			override fun onTabSelected(tab: TabLayout.Tab?) {
			currentDateType = when(tab?.position) {
			0 -> DateType.DAY
			1 -> DateType.WEEK
			2 -> DateType.MONTH
			3 -> DateType.YEAR
			else -> DateType.DAY
			}
			updateDateDisplay()
			updateCharts()
			loadPackages()
			}
			override fun onTabUnselected(tab: TabLayout.Tab?) {}
			override fun onTabReselected(tab: TabLayout.Tab?) {}
			})
			}

			private fun setupDatePicker() {
			binding.btnPreviousDate.setOnClickListener {
			adjustDate(-1)
			}
			binding.btnNextDate.setOnClickListener {
			adjustDate(1)
			}
			}

			private fun adjustDate(amount: Int) {
			when (currentDateType) {
			DateType.DAY -> currentDate.add(Calendar.DAY_OF_MONTH, amount)
			DateType.WEEK -> currentDate.add(Calendar.WEEK_OF_YEAR, amount)
			DateType.MONTH -> currentDate.add(Calendar.MONTH, amount)
			DateType.YEAR -> currentDate.add(Calendar.YEAR, amount)
			}
			updateDateDisplay()
			updateCharts()
			loadPackages()
			}

			private fun updateDateDisplay() {
			val dateFormat = when (currentDateType) {
			DateType.DAY -> "yyyy年MM月dd日"
			DateType.WEEK -> {
			// 获取本周的起始和结束日期
			val calendar = currentDate.clone() as Calendar
			calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY)
			val startDate = SimpleDateFormat("MM月dd日", Locale.getDefault()).format(calendar.time)

			calendar.add(Calendar.DAY_OF_WEEK, 6)
			val endDate = SimpleDateFormat("MM月dd日", Locale.getDefault()).format(calendar.time)

			"$startDate-$endDate"
			}
			DateType.MONTH -> "yyyy年MM月"
			DateType.YEAR -> "yyyy年"
			}

			if (currentDateType == DateType.WEEK) {
			binding.textCurrentDate.text = dateFormat
			} else {
			binding.textCurrentDate.text = SimpleDateFormat(dateFormat, Locale.getDefault())
			.format(currentDate.time)
			}
			}
			private fun setupView(view: View) {
			val weekStatsView = binding.layoutWeekStats.root
			barChart = weekStatsView.findViewById(R.id.chart_daily_packages)
			pieChart = weekStatsView.findViewById(R.id.chart_courier_distribution)
			heatmapView = weekStatsView.findViewById(R.id.heatmap_yearly)

			// 初始化时隐藏统计视图
			weekStatsView.visibility = View.GONE

			setupBarChart()
			setupPieChart()
			setupHeatmap()
			updateCharts()
			}
			private fun setupBarChart() {
			barChart.apply {
			description.isEnabled = false
			setDrawGridBackground(false)
			legend.isEnabled = false

			// 增大图表高度
			minimumHeight = (resources.displayMetrics.density * 300).toInt()

			// X轴设置
			xAxis.apply {
			position = XAxis.XAxisPosition.BOTTOM
			setDrawGridLines(false)
			granularity = 1f
			labelRotationAngle = 0f
			textSize = 10f //标签字体
			setExtraLeftOffset(5f) // 减少左侧留白
			setExtraBottomOffset(15f)
			}

			// Y轴设置
			axisLeft.apply {
			setDrawGridLines(true)
			axisMinimum = 0f
			granularity = 1f
			valueFormatter = object : ValueFormatter() {
			override fun getFormattedValue(value: Float): String {
			return if (value > 0) value.toInt().toString() else ""
			}
			}
			}
			axisRight.isEnabled = false

			// 设置图表交互
			setTouchEnabled(true)
			isDragEnabled = true
			setScaleEnabled(true)

			// 设置边距
			setExtraOffsets(10f, 10f, 10f, 20f)
			}



			updateBarChartData()
			}
			private fun updateBarChartData() {
			val statsFlow = when (currentDateType) {
			DateType.WEEK -> {
			viewModel.getWeeklyStats(currentDate.timeInMillis, 6)
			}
			DateType.MONTH -> {
			viewModel.getYearMonthlyStats(currentDate.timeInMillis)
			}
			else -> return
			}

			statsFlow.observe(viewLifecycleOwner) { stats ->
			if (stats.isEmpty()) return@observe

			val entries = stats.mapIndexed { index, stat ->
			val entry = BarEntry(index.toFloat(), stat.count.toFloat())
			if (stat.count == 0) {
			entry.data = "hide_label"
			}
			entry
			}

			val dataSet = BarDataSet(entries, "包裹数量")
			dataSet.apply {
			color = resources.getColor(R.color.purple_500)
			valueTextSize = 12f
			valueFormatter = object : ValueFormatter() {
			override fun getFormattedValue(value: Float): String {
			return if (value > 0) value.toInt().toString() else ""
			}
			}
			}

			val barData = BarData(dataSet)
			barChart.data = barData

			// 修改X轴标签显示
			barChart.xAxis.apply {
			valueFormatter = object : ValueFormatter() {
			override fun getFormattedValue(value: Float): String {
			val position = value.toInt()
			if (position >= 0 && position < stats.size) {
			return when(currentDateType) {
			DateType.WEEK -> {
			val weekStat = stats[position]
			try {
			// 解析日期字符串
			val sdf = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
			val date = sdf.parse(weekStat.date)
			val calendar = Calendar.getInstance()
			calendar.time = date

			// 获取年份和周数
			val weekOfYear = calendar.get(Calendar.WEEK_OF_YEAR)
			val year = calendar.get(Calendar.YEAR)

			// 显示格式：第X周
			// "第${weekOfYear}周"
			"${weekOfYear}"
			} catch (e: Exception) {
			weekStat.date
			}
			}
			// DateType.MONTH -> "${stats[position].date}月"
			DateType.MONTH -> {
			stats[position].date.replaceFirst("^0+".toRegex(), "")
			}
			else -> ""
			}
			}
			return ""
			}
			}
			labelCount = stats.size
			setAvoidFirstLastClipping(true)
			labelRotationAngle = 0f

			// 增加标签间距
			// setExtraBottomOffset(20f)
			textSize = 11f // 稍微调小字体
			}

			// 高亮显示
			if (currentDateType == DateType.MONTH) {
			val currentMonth = currentDate.get(Calendar.MONTH)
			dataSet.setColors(List(stats.size) { index ->
			if (index == currentMonth) resources.getColor(R.color.purple_500)
			else resources.getColor(R.color.purple_200)
			})
			} else if (currentDateType == DateType.WEEK) {
			val highlightIndex = 3 // 当前周在第4个位置
			dataSet.setColors(List(stats.size) { index ->
			if (index == highlightIndex) resources.getColor(R.color.purple_500)
			else resources.getColor(R.color.purple_200)
			})
			}

			// 刷新图表
			barChart.notifyDataSetChanged()
			barChart.invalidate()
			}
			}
			private fun setupPieChart() {
			pieChart.apply {
			// 隐藏图表描述（右下角默认文字）
			description.isEnabled = false
			// 显示实际值而非百分比
			setUsePercentValues(false)
			// 隐藏饼图区块上的标签（如数值或名称）
			setDrawEntryLabels(false)

			// 设置饼图与容器的边距，参数顺序：左、上、右、下
			// 右侧留出 80f 空间，可能为图例腾出位置
			setExtraOffsets(20f, 20f, 20f, 20f)



			// 配置图例
			legend.apply {
			isEnabled = true // 启用图例
			verticalAlignment = Legend.LegendVerticalAlignment.CENTER // 垂直居中
			horizontalAlignment = Legend.LegendHorizontalAlignment.RIGHT // 水平靠右对齐
			orientation = Legend.LegendOrientation.VERTICAL // 图例项垂直排列
			setDrawInside(false) // 图例绘制在图表外部（而非覆盖在图上）
			xEntrySpace = 10f // 图例项水平间距
			yEntrySpace = 5f // 图例项垂直间距
			yOffset = 0f // 图例整体 Y 轴无偏移
			textSize = 12f // 图例文字大小
			}

			// 调整中心空白区域大小
			holeRadius = 20f // 中间空心圆的半径（占饼图比例）
			transparentCircleRadius = 25f // 透明圆圈的半径（可能用于边框效果）

			}

			updatePieChartData()
			}
			private fun updatePieChartData() {
			viewModel.getCourierStats(
			currentDate.timeInMillis,
			currentDateType.name
			).observe(viewLifecycleOwner) { stats ->
			val entries = stats.map { stat ->
			PieEntry(stat.count.toFloat(), "${stat.courierName}(${stat.count})")
			}

			val dataSet = PieDataSet(entries, "快递公司分布")
			dataSet.colors = listOf(
			resources.getColor(R.color.purple_500),
			resources.getColor(R.color.teal_200),
			resources.getColor(R.color.purple_200),
			resources.getColor(R.color.teal_700)
			)
			dataSet.valueTextSize = 14f // 增大数值文字大小

			val pieData = PieData(dataSet)
			pieData.setValueFormatter(object : ValueFormatter() {
			override fun getFormattedValue(value: Float): String {
			return value.toInt().toString()
			}
			})

			pieChart.data = pieData
			pieChart.invalidate()
			}
			}
			private fun getDayLabels(): Array<String> {
			return arrayOf("周一", "周二", "周三", "周四", "周五", "周六", "周日")
			}

			private fun loadPackages() {
			viewModel.getPackages(
			currentDate.timeInMillis,
			currentDateType.name
			).observe(viewLifecycleOwner) { packages ->
			when (currentDateType) {
			DateType.DAY -> {
			binding.textPackageCount.text = "${packages.size}个"
			}
			DateType.WEEK -> {
			// 获取本周统计
			viewModel.getCurrentWeekStats(currentDate.timeInMillis)
			.observe(viewLifecycleOwner) { stats ->
			val weekTotal = stats.sumOf { it.count }
			binding.textPackageCount.text = "${weekTotal}个"
			}
			}
			DateType.MONTH -> {
			// 获取本月统计
			viewModel.getMonthlyStats(currentDate.timeInMillis)
			.observe(viewLifecycleOwner) { stats ->
			val monthTotal = stats.sumOf { it.count }
			binding.textPackageCount.text = "${monthTotal}个"
			}
			}
			DateType.YEAR -> {
			// 获取本年统计
			viewModel.getCurrentYearStats(currentDate.timeInMillis)
			.observe(viewLifecycleOwner) { stats ->
			val yearTotal = stats.sumOf { it.count }
			binding.textPackageCount.text = "${yearTotal}个"
			}
			}
			}
			packageAdapter.updatePackages(packages)
			packageAdapter.updatePackages(packages)
			// binding.textPackageCount.text = "${packages.size}个"
			}
			}
			private fun setupHeatmap() {
			heatmapView.visibility = View.GONE
			}

			private fun updateHeatmapData() {
			viewModel.getYearlyHeatmap(currentDate.timeInMillis).observe(viewLifecycleOwner) { stats ->
			if (stats.isEmpty()) return@observe

			// 创建52周x7天的数据矩阵
			val heatmapMatrix = Array(7) { IntArray(52) }

			// 填充数据
			stats.forEach { stat ->
			val week = stat.weekOfYear - 1 // 0-51
			val dayOfWeek = stat.dayOfWeek - 1 // 0-6
			if (week in 0..51 && dayOfWeek in 0..6) {
			heatmapMatrix[dayOfWeek][week] = stat.count
			}
			}

			// 更新UI
			binding.layoutWeekStats.heatmapYearly.apply {
			removeAllViews()

			val gridLayout = GridLayout(context).apply {
			rowCount = 8 // 增加一行用于显示月份
			columnCount = 53 // 增加一列用于显示星期标签
			}

			// 添加月份标签
			val months = arrayOf("1月", "2月", "3月", "4月", "5月", "6月",
			"7月", "8月", "9月", "10月", "11月", "12月")
			months.forEachIndexed { index, month ->
			val label = TextView(context).apply {
			text = month
			textSize = 10f
			setPadding(0, 0, 8, 4)
			// 计算每个月份标签的位置
			val weekPosition = (index * 4.3).toInt()
			val params = GridLayout.LayoutParams()
			params.columnSpec = GridLayout.spec(weekPosition + 1)
			params.rowSpec = GridLayout.spec(0)
			layoutParams = params
			}
			gridLayout.addView(label)
			}

			// 添加星期标签
			val dayLabels = arrayOf("周一", "周二", "周三", "周四", "周五", "周六", "周日")
			dayLabels.forEachIndexed { index, label ->
			val textView = TextView(context).apply {
			text = label
			textSize = 10f
			setPadding(4, 0, 8, 0)
			val params = GridLayout.LayoutParams()
			params.columnSpec = GridLayout.spec(0)
			params.rowSpec = GridLayout.spec(index + 1)
			layoutParams = params
			}
			gridLayout.addView(textView)
			}

			// 添加热力图单元格
			for (day in 0..6) {
			for (week in 0..51) {
			val count = heatmapMatrix[day][week]
			val cell = View(context).apply {
			val params = GridLayout.LayoutParams().apply {
			width = resources.getDimensionPixelSize(R.dimen.heatmap_cell_size)
			height = resources.getDimensionPixelSize(R.dimen.heatmap_cell_size)
			columnSpec = GridLayout.spec(week + 1)
			rowSpec = GridLayout.spec(day + 1)
			setMargins(1, 1, 1, 1)
			}
			layoutParams = params
			setBackgroundColor(getHeatmapColor(count))
			}
			gridLayout.addView(cell)
			}
			}

			addView(gridLayout)
			}
			}
			}

			private fun getHeatmapColor(count: Int): Int {
			return when {
			count == 0 -> Color.parseColor("#EBEDF0")
			count == 1 -> Color.parseColor("#9BE9A8")
			count == 2 -> Color.parseColor("#40C463")
			count <= 4 -> Color.parseColor("#30A14E")
			else -> Color.parseColor("#216E39")
			}
			}

			private fun updateCharts() {
			when (currentDateType) {
			DateType.DAY -> {
			// 日视图显示包裹列表，隐藏统计图表
			binding.recyclerPackages.visibility = View.VISIBLE
			binding.layoutWeekStats.root.visibility = View.GONE
			binding.layoutYearStats.root.visibility = View.GONE
			binding.cardPackageStats.visibility = View.VISIBLE
			}
			DateType.WEEK, DateType.MONTH -> {
			// 周和月视图显示柱状图和饼图，隐藏包裹列表
			binding.recyclerPackages.visibility = View.GONE
			binding.layoutWeekStats.root.visibility = View.VISIBLE
			binding.layoutYearStats.root.visibility = View.GONE
			binding.layoutWeekStats.chartDailyPackages.visibility = View.VISIBLE
			(binding.layoutWeekStats.chartDailyPackages.parent as? View)?.visibility = View.VISIBLE
			binding.layoutWeekStats.heatmapYearly.visibility = View.GONE
			binding.cardPackageStats.visibility = View.VISIBLE
			updateBarChartData()
			updatePieChartData()
			}
			DateType.YEAR -> {
			// 年视图显示热力图和饼图，隐藏包裹列表和柱状图
			binding.recyclerPackages.visibility = View.GONE
			binding.layoutWeekStats.root.visibility = View.VISIBLE
			binding.layoutYearStats.root.visibility = View.VISIBLE
			(binding.layoutWeekStats.chartDailyPackages.parent as? View)?.visibility = View.GONE
			binding.layoutWeekStats.heatmapYearly.visibility = View.VISIBLE
			binding.cardPackageStats.visibility = View.GONE
			updateHeatmapData()
			updatePieChartData()
			updateYearlyStats()
			}
			}
			}

			private fun updateYearlyStats() {
			viewModel.getYearlyStats(currentDate.timeInMillis).observe(viewLifecycleOwner) { stats: List<DailyStat> ->
			if (stats.isEmpty()) return@observe

			// 更新年度包裹总数
			binding.layoutYearStats.textTotalPackages.text = "${stats.sumOf { it.count }}个"

			// 更新平均每天包裹数
			val avgDaily = stats.sumOf { it.count }.toFloat() / 365
			binding.layoutYearStats.textDailyAverage.text = String.format("%.2f", avgDaily)
			}
			}

			override fun onDestroyView() {