import 'package:flutter/material.dart';
import 'package:localstore/localstore.dart';
import 'package:outbag_app/tools/assets.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';

class RoomVisibility {
  final int type;
  const RoomVisibility(this.type);

  static RoomVisibility get private {
    return const RoomVisibility(0);
  }

  static RoomVisibility get local {
    return const RoomVisibility(1);
  }

  static RoomVisibility get public {
    return const RoomVisibility(2);
  }

  IconData get icon {
    if (type == 2) {
      return Icons.public;
    } else if (type == 1) {
      return Icons.home;
    }

    return Icons.lock;
  }

  String text(BuildContext context) {
    final trans = AppLocalizations.of(context);

    if (type == 2) {
      return trans!.roomVisibilityGlobal;
    } else if (type == 1) {
      return trans!.roomVisibilityLocal;
    }

    return trans!.roomVisibilityPrivate;
  }

  static List<RoomVisibility> list() {
    return [
      RoomVisibility.private,
      RoomVisibility.local,
      RoomVisibility.public,
    ];
  }
}

class RoomIcon {
  final String type;
  RoomIcon({required this.type});

  static RoomIcon get love {
    return RoomIcon(type: "Love");
  }

  static RoomIcon get sports {
    return RoomIcon(type: "Sports");
  }

  static RoomIcon get pets {
    return RoomIcon(type: "Pets");
  }

  static RoomIcon get vacation {
    return RoomIcon(type: "Vacation");
  }

  static RoomIcon get gifts {
    return RoomIcon(type: "Gifts");
  }

  static RoomIcon get groceries {
    return RoomIcon(type: "Groceries");
  }

  static RoomIcon get fashion {
    return RoomIcon(type: "Fashion");
  }

  static RoomIcon get art {
    return RoomIcon(type: "Art");
  }

  static RoomIcon get tech {
    return RoomIcon(type: "Tech");
  }

  static RoomIcon get home {
    return RoomIcon(type: "Home");
  }

  static RoomIcon get family {
    return RoomIcon(type: "Family");
  }

  static RoomIcon get social {
    return RoomIcon(type: "Social");
  }

  static RoomIcon get other {
    return RoomIcon(type: "Other");
  }

  static List<RoomIcon> list() {
    return [
      RoomIcon.love,
      RoomIcon.sports,
      RoomIcon.pets,
      RoomIcon.vacation,
      RoomIcon.gifts,
      RoomIcon.groceries,
      RoomIcon.fashion,
      RoomIcon.art,
      RoomIcon.tech,
      RoomIcon.home,
      RoomIcon.family,
      RoomIcon.social,
      RoomIcon.other,
    ];
  }

  String get text {
    switch (type.toLowerCase()) {
      case 'love':
        return 'Friends';
      case 'sports':
        return 'Sports';
      case 'pets':
        return 'Pets';
      case 'vacation':
        return 'Vacation';
      case 'gifts':
        return 'Gifts';
      case 'groceries':
        return 'Groceries';
      case 'fashion':
        return 'Clothing';
      case 'art':
        return 'Arts & Crafts';
      case 'tech':
        return 'Electronics';
      case 'home':
        return 'Home supplies';
      case 'family':
        return 'Family';
      case 'social':
        return 'Social';
      case 'other':
      default:
        return 'Other';
    }
  }

  // return image name
  String get img {
    String path = "";
    switch (type.toLowerCase()) {
      case 'love':
        path = 'undraw/undraw_couple.svg';
        break;
      case 'sports':
        path = 'undraw/undraw_greek_freak.svg';
        break;
      case 'pets':
        path = 'undraw/undraw_dog.svg';
        break;
      case 'vacation':
        path = 'undraw/undraw_trip.svg';
        break;
      case 'gifts':
        path = 'undraw/undraw_gifts.svg';
        break;
      case 'groceries':
        path = 'undraw/undraw_gone_shopping.svg';
        break;
      case 'fashion':
        path = 'undraw/undraw_jewelry.svg';
        break;
      case 'art':
        path = 'undraw/undraw_sculpting.svg';
        break;
      case 'tech':
        path = 'undraw/undraw_progressive_app.svg';
        break;
      case 'home':
        path = 'undraw/undraw_under_construction.svg';
        break;
      case 'family':
        path = 'undraw/undraw_family.svg';
        break;
      case 'social':
        path = 'undraw/undraw_pizza_sharing.svg';
        break;
      case 'other':
      default:
        path = 'undraw/undraw_file_manager.svg';
    }

    return asset(path);
  }
}

class Room {
  String id;
  String serverTag;
  String name;
  String description;
  RoomIcon? icon = RoomIcon.other;
  RoomVisibility? visibility = RoomVisibility.private;

  Room(
      {required this.id,
      required this.serverTag,
      this.name = "",
      this.description = "",
      this.icon,
      this.visibility});

  @override
  bool operator ==(Object r) {
    if (r.runtimeType != runtimeType) {
      return false;
    }
    final me = humanReadable;
    final other = (r as Room).humanReadable;

    return me == other;
  }

  String get humanReadable {
    return '$id@$serverTag';
  }

  // get list of all known rooms
  static Future<List<Room>> listRooms() async {
    final db = Localstore.instance;
    final rooms = (await db.collection('rooms').get())!;
    List<Room> builder = [];
    for (MapEntry entry in rooms.entries) {
      try {
        builder.add(Room.fromMap(entry.value));
      } catch (e) {
        // skip invalid rooms
        // NOTE: might want to autodelete them in the future
        // although keeping them might be ok,
        // in case we ever get a new dataset to fix the current state
      }
    }
    return builder;
  }

  // listen to room change
  static listen(Function(Map<String, dynamic>) cb) async {
    final db = Localstore.instance;
    final stream = db.collection('rooms').stream;
    stream.listen(cb);
  }

  factory Room.fromMap(Map<String, dynamic> map) {
    return Room(
        id: map['id'],
        serverTag: map['server'],
        name: map['name'],
        description: map['description'] ?? '',
        icon: RoomIcon(type: map['icon'] ?? 'Other'),
        visibility: RoomVisibility(map['visibility'] ?? 0));
  }

  Map<String, dynamic> toMap() {
    return {
      'id': id,
      'server': serverTag,
      'description': description,
      'name': name,
      'icon': icon?.type,
      'visibility': visibility?.type
    };
  }

  factory Room.fromJSON(dynamic json) {
    return Room(
        id: json['name'],
        serverTag: json['server'],
        name: json['title'],
        description: json['description'],
        icon: RoomIcon(type: json['icon']),
        visibility: RoomVisibility(json['visibility']));
  }

  Future<void> toDisk() async {
    final db = Localstore.instance;
    await db.collection('rooms').doc('$id@$serverTag').set(toMap());
  }

  Future<void> removeDisk() async {
    final db = Localstore.instance;
    // NOTE: Because categories, products and entries
    // are supposed to be stored in the room object
    // (they are just not read by Room.fromDisk)
    // deleting the document from the collection
    // should also get rid of affiliated collections
    await db.collection('rooms').doc('$id@$serverTag').delete();
  }

  static Future<Room> fromDisk(
      {required String id, required String serverTag}) async {
    final db = Localstore.instance;
    final raw = await db.collection('rooms').doc('$id@$serverTag').get();
    return Room.fromMap(raw!);
  }
}

class RoomMember {
  final String id;
  final String serverTag;
  final bool isAdmin;
  final bool isInvitePending;

  const RoomMember(
      {required this.id,
      required this.serverTag,
      required this.isAdmin,
      this.isInvitePending = false});

  factory RoomMember.fromJSON(dynamic json) {
    return RoomMember(
        id: json['name'],
        serverTag: json['server'],
        isAdmin: json['admin'],
        isInvitePending: json['confirmed']);
  }

  String get humanReadableName {
    return '$id@$serverTag';
  }
}

class RoomInfo {
  final String owner;
  final bool isAdmin;
  final bool isOwner;
  final int permissions;

  const RoomInfo(
      {required this.permissions,
      required this.owner,
      required this.isAdmin,
      required this.isOwner});

  factory RoomInfo.fromJSON(dynamic json) {
    return RoomInfo(
        permissions: json['rights'],
        owner: json['owner'],
        isAdmin: json['isAdmin'],
        isOwner: json['isOwner']);
  }
}

class RoomCategory {
  final int? id;
  String name;
  ColorSwatch<int> color;
  final String room;
  final String server;

  RoomCategory(
      {required this.id,
      required this.name,
      required this.color,
      required this.server,
      required this.room});

  factory RoomCategory.fromJSON(String server, String room, dynamic json) {
    return RoomCategory(
        server: server,
        room: room,
        id: json['id'],
        name: json['title'],
        color: colorFromString(json['color']));
  }
  factory RoomCategory.other(String server, String room, BuildContext context) {
    return RoomCategory(
        server: server,
        room: room,
        id: null,
        name: AppLocalizations.of(context)!.categoryNameOther,
        color: Colors.grey);
  }

  static List<ColorSwatch<int>> listColors() {
    return [
      "red",
      "green",
      "yellow",
      "blue",
      "aqua",
      "purple",
      "red-acc",
      "green-acc",
      "yellow-acc",
      "blue-acc",
      "aqua-acc",
      "purple-acc",
    ].map((txt) => colorFromString(txt)).toList();
  }

  // get list of all categories in a given room
  static Future<List<RoomCategory>> list(String server, String room) async {
    final db = Localstore.instance;
    final rooms = (await db.collection('categories:$room@$server').get()) ?? {};
    List<RoomCategory> builder = [];
    for (MapEntry entry in rooms.entries) {
      try {
        builder.add(RoomCategory.fromMap(entry.value));
      } catch (e) {
        // skip invalid entries
        // NOTE: might want to autodelete them in the future
        // although keeping them might be ok,
        // in case we ever get a new dataset to fix the current state
      }
    }
    return builder;
  }

  // listen to room change
  static listen(
      String server, String room, Function(Map<String, dynamic>) cb) async {
    final db = Localstore.instance;
    final stream = db.collection('categories:$room@$server').stream;
    stream.listen(cb);
  }

  factory RoomCategory.fromMap(Map<String, dynamic> map) {
    return RoomCategory(
        server: map['server'],
        room: map['room'],
        id: map['id'],
        name: map['name'],
        color: colorFromString(map['color']));
  }

  Map<String, dynamic> toMap() {
    return {
      'server': server,
      'room': room,
      'id': id,
      'name': name,
      'color': colorIdFromColor(color)
    };
  }

  Future<void> toDisk() async {
    final db = Localstore.instance;
    await db.collection('categories:$room@$server').doc('$id').set(toMap());
  }

  Future<void> removeDisk() async {
    final db = Localstore.instance;
    await db.collection('categories:$room@$server').doc('$id').delete();
  }

  static Future<RoomCategory> fromDisk(
      {required int id, required String server, required String room}) async {
    final db = Localstore.instance;
    final raw =
        await db.collection('categories:$room@$server').doc('$id').get();
    return RoomCategory.fromMap(raw!);
  }
}

ColorSwatch<int> colorFromString(String text) {
  switch (text.toLowerCase()) {
    case 'red-acc':
      return Colors.redAccent;
    case 'green-acc':
      return Colors.greenAccent;
    case 'yellow-acc':
      return Colors.yellowAccent;
    case 'blue-acc':
      return Colors.blueAccent;
    case 'aqua-acc':
      return Colors.tealAccent;
    case 'purple-acc':
      return Colors.purpleAccent;

    case 'red':
      return Colors.red;
    case 'green':
      return Colors.green;
    case 'yellow':
      return Colors.yellow;
    case 'blue':
      return Colors.blue;
    case 'aqua':
      return Colors.teal;
    case 'purple':
    default:
      return Colors.purple;
  }
}

String colorIdFromColor(ColorSwatch<int> color) {
  if (color == Colors.redAccent) {
    return 'red-acc';
  }
  if (color == Colors.greenAccent) {
    return 'green-acc';
  }
  if (color == Colors.yellowAccent) {
    return 'yellow-acc';
  }
  if (color == Colors.blueAccent) {
    return 'blue-acc';
  }
  if (color == Colors.tealAccent) {
    return 'teal-acc';
  }
  if (color == Colors.purpleAccent) {
    return 'purple-acc';
  }

  if (color == Colors.red) {
    return 'red';
  }
  if (color == Colors.green) {
    return 'green';
  }
  if (color == Colors.yellow) {
    return 'yellow';
  }
  if (color == Colors.blue) {
    return 'blue';
  }
  if (color == Colors.teal) {
    return 'teal';
  }
  if (color == Colors.purple) {
    return 'purple';
  }

  return 'purple';
}

class RoomProduct {
  final int id;
  String name;
  String description;
  // category ID
  // or null for category: "other"
  int? category;
  // unitID
  int defaultUnit;
  // NOTE: has to be string,
  // as it may hold plain text,
  // integers or doubles
  String defaultValue;
  String? ean;
  // parent product ID
  int? parent;

  final String server;
  final String room;

  RoomProduct(
      {required this.id,
      required this.name,
      required this.server,
      required this.room,
      this.description = '',
      this.category = -1,
      this.defaultUnit = 0,
      this.defaultValue = '',
      this.ean,
      this.parent});

  factory RoomProduct.fromJSON(String server, String room, dynamic json) {
    return RoomProduct(
        server: server,
        room: room,
        id: json['listProdID'],
        name: json['title'],
        description: json['description'],
        category: json['category'],
        defaultUnit: json['defUnit'],
        defaultValue: json['defValue'],
        ean: json['ean'],
        parent: json['parent']);
  }

  // get list of all categories in a given room
  static Future<List<RoomProduct>> list(String server, String room) async {
    final db = Localstore.instance;
    final rooms = (await db.collection('products:$room@$server').get()) ?? {};
    List<RoomProduct> builder = [];
    for (MapEntry entry in rooms.entries) {
      try {
        builder.add(RoomProduct.fromMap(entry.value));
      } catch (e) {
        // skip invalid entries
        // NOTE: might want to autodelete them in the future
        // although keeping them might be ok,
        // in case we ever get a new dataset to fix the current state
      }
    }
    return builder;
  }

  // listen to room change
  static listen(
      String server, String room, Function(Map<String, dynamic>) cb) async {
    final db = Localstore.instance;
    final stream = db.collection('products:$room@$server').stream;
    stream.listen(cb);
  }

  factory RoomProduct.fromMap(Map<String, dynamic> map) {
    return RoomProduct(
        server: map['server'],
        room: map['room'],
        id: map['id'],
        name: map['name'],
        description: map['description'],
        category: map['category'],
        defaultUnit: map['default_unit'],
        defaultValue: map['default_value'],
        ean: map['ean'],
        parent: map['parent']);
  }

  Map<String, dynamic> toMap() {
    return {
      'server': server,
      'room': room,
      'id': id,
      'name': name,
      'description': description,
      'category': category,
      'default_unit': defaultUnit,
      'default_value': defaultValue,
      'ean': ean,
      'parent': parent
    };
  }

  Future<void> toDisk() async {
    final db = Localstore.instance;
    await db.collection('products:$room@$server').doc('$id').set(toMap());
  }

  Future<void> removeDisk() async {
    final db = Localstore.instance;
    await db.collection('products:$room@$server').doc('$id').delete();
  }

  static Future<RoomProduct> fromDisk(
      {required int id, required String server, required String room}) async {
    final db = Localstore.instance;
    final raw = await db.collection('products:$room@$server').doc('$id').get();
    return RoomProduct.fromMap(raw!);
  }
}

class RoomItem {
  int id;
  int state;
  String name;
  String description;
  // may link to a category
  // null  for other
  int? category;

  int unit;
  String value;
  // may link to a product
  int? link;

  RoomItem(
      {required this.id,
      required this.name,
      this.description = '',
      this.state = 0,
      this.category = -1,
      this.unit = 0,
      this.value = '',
      this.link});

  factory RoomItem.fromJSON(dynamic json) {
    return RoomItem(
        id: json['listItemID'],
        name: json['title'],
        description: json['description'],
        category: json['listCatID'],
        state: json['state'],
        unit: json['unit'],
        value: json['value'],
        link: json['listProdID']);
  }

  RoomItem clone() {
    return RoomItem(
        id: id,
        name: name,
        description: description,
        category: category,
        unit: unit,
        value: value,
        link: link);
  }
}