import 'package:flutter/material.dart';
import 'package:flutter/material.dart' as material;
import 'package:flutter/services.dart';
import 'package:fmassive/database.dart';
import 'package:fmassive/edit_plan.dart';
import 'package:fmassive/main.dart';
import 'package:moor_flutter/moor_flutter.dart';

class StartPlan extends StatefulWidget {
  final PlansCompanion plan;

  const StartPlan({required this.plan, super.key});

  @override
  createState() => _StartPlanState();
}

class _StartPlanState extends State<StartPlan> {
  late List<String> exercises;
  List<int> counts = [];
  List<int> totals = [];
  int selectedExercise = 0;
  final repsController = TextEditingController();
  final repsNode = FocusNode();
  final weightController = TextEditingController();
  final weightNode = FocusNode();

  Future<void> getTotals() async {
    final query = await (db.selectOnly(db.gymSets)
          ..addColumns([db.gymSets.name, db.gymSets.sets])
          ..where(db.gymSets.name.isIn(exercises))
          ..groupBy([db.gymSets.name, db.gymSets.sets]))
        .map((row) =>
            MapEntry(row.read(db.gymSets.name), row.read(db.gymSets.sets)),)
        .get();
    final map = Map.fromIterables(
        query.map((entry) => entry.key), query.map((entry) => entry.value),);
    setState(() {
      totals = [];
      for (var exercise in exercises) {
        totals.add(map[exercise] ?? 0);
      }
    });
    print("totals=$totals");
  }

  Future<void> getCounts() async {
    var countExp = db.gymSets.name.count();
    final today = DateTime.now().toIso8601String().split('T')[0];
    final query = await (db.selectOnly(db.gymSets)
          ..addColumns([countExp, db.gymSets.name])
          ..where(db.gymSets.created.contains(today))
          ..groupBy([db.gymSets.name]))
        .map((row) => MapEntry(row.read(db.gymSets.name), row.read(countExp)))
        .get();
    final map = Map.fromIterables(
        query.map((entry) => entry.key), query.map((entry) => entry.value),);
    setState(() {
      counts = [];
      for (var exercise in exercises) {
        counts.add(map[exercise] ?? 0);
      }
    });
    print("counts=$counts");
  }

  Future<void> focus(int index) async {
    final name = exercises[index];
    final sets = await (db.gymSets.select()
          ..where((gymSet) => gymSet.name.contains(name))
          ..orderBy([
            (u) => OrderingTerm(expression: u.created, mode: OrderingMode.desc),
          ])
          ..limit(1))
        .get();
    final firstSet = sets.first;
    repsController.text = firstSet.reps.toString();
    repsController.selection = TextSelection(
        baseOffset: 0, extentOffset: firstSet.reps.toString().length,);
    weightController.text = firstSet.weight.toString();
  }

  @override
  void initState() {
    super.initState();
    exercises = widget.plan.exercises.value.split(',');
    repsNode.requestFocus();

    getCounts();
    getTotals();

    focus(selectedExercise);
  }

  @override
  dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    List<Widget> actions = [];
    if (widget.plan.id.present)
      actions.add(IconButton(
          onPressed: () async {
            await Navigator.push(
              context,
              MaterialPageRoute(
                builder: (context) => EditPlanPage(plan: widget.plan),
              ),
            );
          },
          icon: const Icon(Icons.edit),),);

    if (totals.isEmpty || counts.isEmpty) return Container();

    return SafeArea(
        child: Scaffold(
      appBar: AppBar(title: const Text('Start plan'), actions: actions),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: material.Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Expanded(
              child: ListView.builder(
                itemBuilder: ((context, index) {
                  return ListTile(
                    title: Text(exercises[index]),
                    subtitle: Text("${counts[index]}/${totals[index]}"),
                    onTap: () {
                      setState(() {
                        selectedExercise = index;
                        focus(index);
                      });
                    },
                    leading: Radio<int>(
                      value: index,
                      groupValue: selectedExercise,
                      onChanged: (value) {
                        print("onChanged $value");
                        if (value == null) return;
                        setState(() {
                          selectedExercise = value;
                          focus(index);
                        });
                      },
                    ),
                  );
                }),
                itemCount: exercises.length,
              ),
            ),
            TextFormField(
              decoration: const InputDecoration(labelText: 'Reps'),
              controller: repsController,
              focusNode: repsNode,
              onTap: () {
                repsController.selection = TextSelection(
                    baseOffset: 0, extentOffset: repsController.text.length,);
              },
            ),
            TextFormField(
              decoration: const InputDecoration(labelText: 'Weight'),
              controller: weightController,
              focusNode: weightNode,
              onTap: () {
                weightController.selection = TextSelection(
                    baseOffset: 0, extentOffset: weightController.text.length,);
              },
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () async {
          final gymSet = GymSetsCompanion(
              created: Value(DateTime.now().toIso8601String()),
              name: Value(exercises[selectedExercise]),
              reps: Value(int.tryParse(repsController.text) ?? 0),
              weight: Value(double.tryParse(weightController.text) ?? 0),);
          await db.into(db.gymSets).insert(gymSet);
          const platform = MethodChannel('com.massive/android');
          platform.invokeMethod('timer', [180000]);
          await getCounts();
        },
        child: const Icon(Icons.check),
      ),
    ),);
  }
}