flutter-sport/lib/bean/sport_index.dart

import 'dart:math';
import 'dart:ui';

import 'package:sport/application.dart';
import 'package:sport/bean/sport_detail.dart';
import 'package:sport/bean/sport_target.dart';
import 'package:sport/bean/user.dart';
//import 'package:sport/bean/user.dart';

import 'game.dart' as game;

class SportIndex {
  int? duration;
  int? durationTarget;
  int? consume;
  int? beyond;
  String? inspire;
  game.GameInfoData? lastGame;
  List<game.GameInfoData>? games;
  RankInfo? rank;
  List<Achievement>? achievement;

  Today? today;
  SportTarget? target;
  List<RecordsToday>? records;

  SportIndex({this.duration, this.durationTarget, this.consume, this.beyond, this.inspire, this.lastGame, this.achievement});

  SportIndex.fromJson(Map<String, dynamic> json) {
    duration = json['duration'];
    durationTarget = json['duration_target'];
    consume = json['consume'];
    beyond = json['beyond'];
    inspire = json['inspire'];
    lastGame = json['last_game'] != null ? new game.GameInfoData.fromJson(json['last_game']) : null;
    rank = json['rank'] != null ? new RankInfo.fromJson(json['rank']) : null;
    if (json['games'] != null) {
      games = [];
      json['games'].forEach((v) {
        games!.add(new game.GameInfoData.fromJson(v));
      });
    }

    if (json['new_achievements'] != null) {
      achievement = [];
      json['new_achievements'].forEach((v) {
        achievement!.add(new Achievement.fromJson(v));
      });
    }

    today = json['today'] != null ? new Today.fromJson(json['today']) : null;

    target = json['target'] != null ? new SportTarget.fromJson(json['target']) : null;

    if (json['records'] != null) {
      records = [];
      json['records'].forEach((v) {
        records!.add(new RecordsToday.fromJson(v));
      });
    }
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['duration'] = this.duration;
    data['duration_target'] = this.durationTarget;
    data['consume'] = this.consume;
    data['beyond'] = this.beyond;
    data['inspire'] = this.inspire;
    if (this.lastGame != null) {
      data['last_game'] = this.lastGame!.toJson();
    }
    data["new_achievements"] = this.achievement;
    return data;
  }
}

class RankInfo {
  Rank? rank;
  User? user;
  List<User>? records;

  RankInfo({this.rank, this.user, this.records});

  RankInfo.fromJson(Map<String, dynamic> json) {
    rank = json['rank'] != null
        ? json['rank'] is bool
            ? null
            : new Rank.fromJson(json['rank'])
        : null;
    user = json['user'] != null ? new User.fromJson(json['user']) : null;
    if (json['records'] != null) {
      records = [];
      json['records'].forEach((v) {
        records!.add(new User.fromJson(v));
      });
    }
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    if (this.rank != null) {
      data['rank'] = this.rank!.toJson();
    }
    if (this.user != null) {
      data['user'] = this.user!.toJson();
    }
    if (this.records != null) {
      data['records'] = this.records!.map((v) => v.toJson()).toList();
    }
    return data;
  }
}

class Rank {
  int? id;
  String? name;
  int? isGame;
  int? isSport;
  int? gameId;
  String? introduce;
  int? userCountMax;
  String? rateBegin;
  String? rateEnd;

  Rank({this.id, this.name, this.isGame, this.isSport, this.gameId, this.introduce, this.userCountMax, this.rateBegin, this.rateEnd});

  Rank.fromJson(Map<String, dynamic> json) {
    id = json['id'];
    name = json['name'];
    isGame = json['is_game'];
    isSport = json['is_sport'];
    gameId = json['game_id'];
    introduce = json['introduce'];
    userCountMax = json['user_count_max'];
    rateBegin = json['rate_begin'];
    rateEnd = json['rate_end'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = this.id;
    data['name'] = this.name;
    data['is_game'] = this.isGame;
    data['is_sport'] = this.isSport;
    data['game_id'] = this.gameId;
    data['introduce'] = this.introduce;
    data['user_count_max'] = this.userCountMax;
    data['rate_begin'] = this.rateBegin;
    data['rate_end'] = this.rateEnd;
    return data;
  }
}

class Today {
  int? step, consume, duration;

  Today({this.step, this.consume, this.duration});

  Today.fromJson(Map<String, dynamic> json) {
    step = json['step'];
    consume = json['consume'];
    duration = json['duration_minute'];
  }

  double get strength => strengthToValue(consume, duration);

  String strengthLabel() {
    return strengthToLabel(consume, duration);
  }

  int? value(String? type) => type == "consume" ? consume : duration;
}

const strengthArr = ["低强度", "中等", "高强度", "剧烈", "高负荷"];
const strengthDetails = ["该级别适用于恢复和基础心血功能训练，可以提高心脏的泵血能力和肌肉使用氧气的能力", "可以适当增强心肺功能，获得更强耐力", "可以增强力量和肌肉耐力，提高厌氧能力和乳酸阈值", "有利于增强机体内肌肉的含量，加快代谢，使肌肉骨骼更加强壮", "可以增加个人机体的极限，对人体素质有很大提高；此时强度过大，心肺对全身的肌肉、细胞供氧不足，可能会出现无力、虚脱等症状"];
const strengthColors = [const Color(0xffFFBFA8), const Color(0xffFF9D77), const Color(0xffFF5B1D), const Color(0xffD93D01), const Color(0xff9C2B00)];

double strengthToValue(int? consume, int? duration) {
  if (duration == null || consume == null) return 0.0;
  if (duration == 0 || consume == 0) return 0.0;
  double result = consume / duration * 60.0;
  return result;
}

String strengthToLabel(int? consume, int? duration) {
  double v = metNum(consume, (duration ?? 0) ~/ 60);
  return strengthMetToLabel(v);
}

String metToLabel(double met) {
  return strengthMetToLabel(met);
}

String metToDetail(double met) {
  var label = metToLabel(met);
  return strengthDetails[strengthArr.indexOf(label)];
}

Color metToColor(double met) {
  var label = metToLabel(met);
  return strengthColors[strengthArr.indexOf(label)];
}

String strengthMetToLabel(double met) {
  double v = met;
  if (v == 0) return strengthArr[0];
  if (gender == 1) {
    if (v < 4.0) {
      return strengthArr[0];
    } else if (v < 6.0) {
      return strengthArr[1];
    } else if (v < 8.0) {
      return strengthArr[2];
    } else if (v < 10.0) {
      return strengthArr[3];
    } else {
      return strengthArr[4];
    }
  } else {
    if (v < 2.8) {
      return strengthArr[0];
    } else if (v < 4.4) {
      return strengthArr[1];
    } else if (v < 6.0) {
      return strengthArr[2];
    } else if (v < 7.6) {
      return strengthArr[3];
    } else {
      return strengthArr[4];
    }
  }
}

String met(int? consume, int? duration) {
  return metNum(consume, duration).toStringAsFixed(1);
}

double metNum(int? consume, int? duration) {
  // print("met $consume $duration");
  if (duration == null || consume == null) return 0;
  if (duration == 0 || consume == 0) return 0;
  // 卡路里消耗（大卡）=MET值× 0.0167 ×时间h（min）×体重（kg）
  return min(30.0, (consume / (0.0167 * duration * weight)));
}