import 'package:fl_chart/fl_chart.dart';
import 'package:flutter/material.dart';
import '../../../utils/extensions/constants.dart';
import '../graph_controller.dart';

class BarChartWidget extends StatelessWidget {
  final GraphController graphCtrl;
  const BarChartWidget({super.key, required this.graphCtrl});

  @override
  Widget build(BuildContext context) {
    return AspectRatio(
      aspectRatio: 2,
      child: BarChart(
        BarChartData(
          //alignment: BarChartAlignment.center,
          maxY: 50,
          baselineY: 0,
          barTouchData: barTouchData,
          titlesData: titlesData,
          borderData: borderData,
          barGroups: barGroups,
          gridData: const FlGridData(show: false),
        ),
      ),
    );
  }

  BarTouchData get barTouchData => BarTouchData(
    enabled: false,
    touchTooltipData: BarTouchTooltipData(
      //tooltipBgColor: Colors.transparent,
      tooltipPadding: EdgeInsets.zero,
      tooltipMargin: 8,
      getTooltipItem:
          (
            BarChartGroupData group,
            int groupIndex,
            BarChartRodData rod,
            int rodIndex,
          ) {
            return BarTooltipItem(
              rod.toY.round().toString(),
              const TextStyle(color: Colors.cyan, fontWeight: FontWeight.bold),
            );
          },
    ),
  );

  Widget getTitles(double value, TitleMeta meta) {
    List<String> dayMonListString = graphCtrl.getHeadDescription();
    for (var i = 0; i < dayMonListString.length; i++) {
      if (i == value.toInt()) {
        graphCtrl.szBarTitle.value = dayMonListString[i];
      }
    }
    return SideTitleWidget(
      fitInside: SideTitleFitInsideData.fromTitleMeta(meta),
      space: 4,
      meta: meta,
      child: Text(graphCtrl.szBarTitle.value, style: kBarTitleStyle),
    );
  }

  FlTitlesData get titlesData => FlTitlesData(
    show: true,
    bottomTitles: AxisTitles(
      sideTitles: SideTitles(
        showTitles: true,
        reservedSize: 30,
        getTitlesWidget: getTitles,
      ),
    ),
    leftTitles: const AxisTitles(sideTitles: SideTitles(showTitles: false)),
    topTitles: const AxisTitles(sideTitles: SideTitles(showTitles: false)),
    rightTitles: const AxisTitles(sideTitles: SideTitles(showTitles: false)),
  );

  FlBorderData get borderData => FlBorderData(show: false);

  LinearGradient get _barsGradient => LinearGradient(
    colors: [Colors.blue.shade400, Colors.red.shade300],
    begin: Alignment.bottomCenter,
    end: Alignment.topCenter,
  );

  List<BarChartGroupData> get barGroups => [
    BarChartGroupData(
      x: 0,
      barRods: [BarChartRodData(toY: 8, gradient: _barsGradient)],
      showingTooltipIndicators: [0],
    ),
    BarChartGroupData(
      x: 1,
      barRods: [BarChartRodData(toY: 10, gradient: _barsGradient)],
      showingTooltipIndicators: [0],
    ),
    BarChartGroupData(
      x: 2,
      barRods: [BarChartRodData(toY: 14, gradient: _barsGradient)],
      showingTooltipIndicators: [0],
    ),
    BarChartGroupData(
      x: 3,
      barRods: [BarChartRodData(toY: 15, gradient: _barsGradient)],
      showingTooltipIndicators: [0],
    ),
    BarChartGroupData(
      x: 4,
      barRods: [BarChartRodData(toY: 13, gradient: _barsGradient)],
      showingTooltipIndicators: [0],
    ),
    BarChartGroupData(
      x: 5,
      barRods: [BarChartRodData(toY: 10, gradient: _barsGradient)],
      showingTooltipIndicators: [0],
    ),
    BarChartGroupData(
      x: 6,
      barRods: [BarChartRodData(toY: 16, gradient: _barsGradient)],
      showingTooltipIndicators: [0],
    ),
  ];
}