import 'dart:collection';

import 'package:flutter/widgets.dart';
import 'package:json_annotation/json_annotation.dart';

part 'warband_roster.g.dart';

//  flutter packages pub run build_runner build --delete-conflicting-outputs

abstract class Unit {
  static List<String> _splitListFromJson(String list) {
    if (list == null) {
      return [];
    }
    return list.split(new RegExp(r" *, *"));
  }

  static Stats _statsFromJson(String stats) {
    RegExp re = new RegExp(
        r"\s*M([0-9]+[dD]*[6]*)\s*,\s*WS([0-9]+)\s*,\s*BS([0-9]+)\s*,\s*S([0-9]+)\s*,\s*T([0-9]+)\s*,\s*W([0-9]+)\s*,\s*I([0-9]+)\s*,\s*A([0-9]+)\s*,\s*Ld([0-9]+)\s*,\s*Sv([0-9\-]+)\s*");
    var matchList = re.allMatches(stats).toList();

    if (matchList.isEmpty) {
      throw FormatException(
          'The stats "' + stats + '" are not in the right format.');
    }

    var matches = matchList.first;
    return Stats(
        int.tryParse(matches.group(1)) ?? 0,
        int.tryParse(matches.group(2)) ?? 0,
        int.tryParse(matches.group(3)) ?? 0,
        int.tryParse(matches.group(4)) ?? 0,
        int.tryParse(matches.group(5)) ?? 0,
        int.tryParse(matches.group(6)) ?? 0,
        int.tryParse(matches.group(7)) ?? 0,
        int.tryParse(matches.group(8)) ?? 0,
        int.tryParse(matches.group(9)) ?? 0,
        int.tryParse(matches.group(10)) ?? 0);
  }
}

@JsonSerializable(nullable: true, anyMap: true, createToJson: false)
class HenchmenGroup extends Unit {
  @JsonKey(name: 'group', fromJson: _henchmenHeaderFromJson, required: true)
  final HashMap<String, String> header;
  @JsonKey(ignore: true)
  String name;
  @JsonKey(ignore: true)
  String type;
  @JsonKey(ignore: true)
  int number;
  @JsonKey(ignore: true)
  int experience;

  @JsonKey(fromJson: Unit._statsFromJson, required: true)
  final Stats stats;

  @JsonKey(fromJson: Unit._splitListFromJson)
  final List<String> weapons;

  @JsonKey(fromJson: Unit._splitListFromJson)
  final List<String> armour;

  HenchmenGroup(this.header, this.stats, this.weapons, this.armour) {
    this.name = this.header['name'];
    this.type = this.header['type'];
    this.number = int.tryParse(this.header['number']) ?? 1;
    this.experience = int.tryParse(this.header['experience']) ?? 0;
  }

  static HashMap<String, String> _henchmenHeaderFromJson(String header) {
    HashMap<String, String> h = new HashMap();
    RegExp re =
        new RegExp(r"([^\(]+)\(([0-9]+)x?\s+([^\)]+)\)\s*\[([0-9]+)XP\]\s*");
    var matchList = re.allMatches(header).toList();

    if (matchList.isEmpty) {
      throw FormatException('The henchmen group header "' +
          header +
          '" is not in the right format.');
    }

    var matches = matchList.first;

    h['name'] = matches.group(1);
    h['number'] = matches.group(2);
    h['type'] = matches.group(3);
    h['experience'] = matches.group(4);

    return h;
  }

  factory HenchmenGroup.fromJson(yaml) => _$HenchmenGroupFromJson(yaml);
}

@JsonSerializable(nullable: true, anyMap: true, createToJson: false)
class Hero extends Unit {
  @JsonKey(name: 'hero', fromJson: _heroHeaderFromJson, required: true)
  final HashMap<String, String> header;
  @JsonKey(ignore: true)
  String name;
  @JsonKey(ignore: true)
  String type;
  @JsonKey(ignore: true)
  int experience;

  @JsonKey(fromJson: Unit._statsFromJson, required: true)
  final Stats stats;

  @JsonKey(fromJson: Unit._splitListFromJson)
  final List<String> skilllists;

  @JsonKey(fromJson: Unit._splitListFromJson)
  final List<String> weapons;

  @JsonKey(fromJson: Unit._splitListFromJson)
  final List<String> armour;

  @JsonKey(fromJson: Unit._splitListFromJson)
  final List<String> rules;

  @JsonKey(defaultValue: 0)
  final int warbandaddition;

  Hero(this.stats, this.skilllists, this.weapons, this.armour, this.rules,
      this.warbandaddition, this.header) {
    this.name = this.header['name'];
    this.type = this.header['type'];
    this.experience = int.tryParse(this.header['experience']) ?? 0;
  }

  factory Hero.fromJson(yaml) => _$HeroFromJson(yaml);

  static HashMap<String, String> _heroHeaderFromJson(String header) {
    HashMap<String, String> h = new HashMap();
    RegExp re = new RegExp(r"([^\(]+)\(([^\)]+)\)\s*\[([0-9]+)XP\]\s*");
    var matchList = re.allMatches(header).toList();

    if (matchList.isEmpty) {
      throw FormatException(
          'The hero header "' + header + '" is not in the right format.');
    }

    var matches = matchList.first;

    h['name'] = matches.group(1);
    h['type'] = matches.group(2);
    h['experience'] = matches.group(3);

    return h;
  }
}

@immutable
class Stats {
  final int movement;
  final int weaponSkill;
  final int ballisticSkill;
  final int strength;
  final int toughtness;
  final int wounds;
  final int initiative;
  final int attacks;
  final int leadership;
  final int save;

  Stats(
      this.movement,
      this.weaponSkill,
      this.ballisticSkill,
      this.strength,
      this.toughtness,
      this.wounds,
      this.initiative,
      this.attacks,
      this.leadership,
      this.save);
}

class Version {
  String gitHash;
  String date;

  String author;
  String message;

  Version(this.gitHash, this.date, this.author, this.message);
}

@JsonSerializable(nullable: true, anyMap: true, createToJson: false)
class WarbandRoster {
  /// Store the complete string of name and race. This will split up into the
  /// fields name and race.
  @JsonKey(name: 'warband', fromJson: _warbandNameAndRace, required: true)
  final HashMap<String, String> nameAndRace;
  @JsonKey(ignore: true)
  String name;
  @JsonKey(ignore: true)
  String race;

  @JsonKey(name: 'active', defaultValue: true)
  bool active;

  @JsonKey(name: 'campaign', defaultValue: 0)
  final int campaignPoints;

  @JsonKey(required: true)
  final String objective;

  @JsonKey(required: true)
  final String alignment;

  @JsonKey(defaultValue: '')
  final String achievments;

  @JsonKey(defaultValue: 0)
  final int gc;

  @JsonKey(defaultValue: 0)
  final int shards;

  @JsonKey(defaultValue: '')
  final String equipment;

  @JsonKey(required: true)
  final List<Hero> heros;

  @JsonKey(name: 'henchmen', required: true)
  final List<HenchmenGroup> henchmenGroups;

  /// The players name is not defined in the yml file. This will be added later
  /// from the GitHubAdapter. Same goes for the lastSyncVersion and currentVersion.
  @JsonKey(ignore: true)
  String playerName = 'Lonely Recluse';

  @JsonKey(ignore: true)
  String filePath;

  @JsonKey(ignore: true)
  Version version;

  @JsonKey(ignore: true)
  bool unseen = true;

  WarbandRoster(
      this.nameAndRace,
      this.campaignPoints,
      this.objective,
      this.alignment,
      this.gc,
      this.shards,
      this.equipment,
      this.achievments,
      this.heros,
      this.henchmenGroups) {
    this.name = this.nameAndRace['name'];
    this.race = this.nameAndRace['race'];
  }

  int experience() {
    // TODO: Calculate
    return 1337;
  }

  static HashMap<String, String> _warbandNameAndRace(String nameAndRace) {
    HashMap<String, String> nr = new HashMap();
    RegExp re = new RegExp(r"(.*) \((.*)\)");

    var matchList = re.allMatches(nameAndRace).toList();

    if (matchList.isEmpty) {
      throw FormatException(
          'Name and race "' + nameAndRace + '" are not in the right format.');
    }

    var matches = matchList.first;
    nr['name'] = matches.group(1).toString();
    nr['race'] = matches.group(2).toString();

    return nr;
  }

  factory WarbandRoster.fromJson(yaml) => _$WarbandRosterFromJson(yaml);
}