import 'dart:convert';
import 'dart:io';

import 'package:eatvio_app/features/insights/models/insights_payload_model.dart';
import 'package:flutter_test/flutter_test.dart';

Map<String, dynamic> _fixture(String name) {
  return jsonDecode(File('test/fixtures/insights/$name').readAsStringSync())
      as Map<String, dynamic>;
}

void main() {
  group('InsightsPayloadModel', () {
    test('парсит полный payload (weight/bmi/measure/daily/intra)', () {
      final model = InsightsPayloadModel.fromJson(
        _fixture('insights_payload.json'),
      );

      expect(model.weight.values, [74.5, 73.9, 73.2]);
      expect(model.weight.last, 73.2);
      expect(model.weight.delta, -1.3);
      expect(model.weight.unit, 'кг');

      expect(model.measure.waist, [82.0, 80.5]);
      expect(model.measure.chest, [96.0, 96.0]);

      expect(model.daily, isNotNull);
      expect(model.daily!.kcal, [1850.0, 2010.0, 1930.0]);
      expect(model.daily!.average, 1930);

      expect(model.intra, isNotNull);
      expect(model.intra!.bars, hasLength(2));
      expect(model.intra!.bars.first.x, 8.5);
      expect(model.intra!.bars.first.c, 240);
      expect(model.intra!.satiety.last.y, 4);
      expect(model.intra!.wake, 7.5);
      expect(model.intra!.isToday, isTrue);
    });

    test('bmi.values пустой и last/delta/category = null', () {
      final model = InsightsPayloadModel.fromJson(
        _fixture('insights_payload.json'),
      );

      expect(model.bmi.values, isEmpty);
      expect(model.bmi.last, isNull);
      expect(model.bmi.delta, isNull);
      expect(model.bmi.category, isNull);
      expect(model.bmi.deltaText, contains('рост'));
    });

    test('пустой intra без wake/sleep; daily == null', () {
      final model = InsightsPayloadModel.fromJson(
        _fixture('insights_payload_minimal.json'),
      );

      expect(model.intra!.wake, isNull);
      expect(model.intra!.sleep, isNull);
      expect(model.intra!.bars, isEmpty);
      expect(model.daily, isNull);
      expect(model.weight.last, isNull);
    });

    test('daily и intra необязательны', () {
      final json = _fixture('insights_payload_minimal.json')
        ..remove('daily')
        ..remove('intra');

      final model = InsightsPayloadModel.fromJson(json);

      expect(model.daily, isNull);
      expect(model.intra, isNull);
    });
  });
}