comunicmobile/lib/models/server_config.dart

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

/// Server static configuration
///
/// @author Pierre Hubert

class PasswordPolicy {
  final bool allowMailInPassword;
  final bool allowNameInPassword;
  final int minPasswordLength;
  final int minNumberUpperCaseLetters;
  final int minNumberLowerCaseLetters;
  final int minNumberDigits;
  final int minNumberSpecialCharacters;
  final int minCategoriesPresence;

  const PasswordPolicy({
    @required this.allowMailInPassword,
    @required this.allowNameInPassword,
    @required this.minPasswordLength,
    @required this.minNumberUpperCaseLetters,
    @required this.minNumberLowerCaseLetters,
    @required this.minNumberDigits,
    @required this.minNumberSpecialCharacters,
    @required this.minCategoriesPresence,
  })  : assert(allowMailInPassword != null),
        assert(allowNameInPassword != null),
        assert(minPasswordLength != null),
        assert(minNumberUpperCaseLetters != null),
        assert(minNumberLowerCaseLetters != null),
        assert(minNumberDigits != null),
        assert(minNumberSpecialCharacters != null),
        assert(minCategoriesPresence != null);
}

class ServerDataConservationPolicy {
  final int minInactiveAccountLifetime;
  final int minNotificationLifetime;
  final int minCommentsLifetime;
  final int minPostsLifetime;
  final int minConversationMessagesLifetime;
  final int minLikesLifetime;

  const ServerDataConservationPolicy({
    @required this.minInactiveAccountLifetime,
    @required this.minNotificationLifetime,
    @required this.minCommentsLifetime,
    @required this.minPostsLifetime,
    @required this.minConversationMessagesLifetime,
    @required this.minLikesLifetime,
  })  : assert(minInactiveAccountLifetime != null),
        assert(minNotificationLifetime != null),
        assert(minCommentsLifetime != null),
        assert(minPostsLifetime != null),
        assert(minConversationMessagesLifetime != null),
        assert(minLikesLifetime != null);
}

class ConversationsPolicy {
  final int minMessageLen;
  final int maxMessageLen;
  final List<String> allowedFilesType;
  final int filesMaxSize;
  final int writingEventInterval;
  final int writingEventLifetime;
  final int maxMessageImageWidth;
  final int maxMessageImageHeight;
  final int maxThumbnailWidth;
  final int maxThumbnailHeight;

  const ConversationsPolicy({
    @required this.minMessageLen,
    @required this.maxMessageLen,
    @required this.allowedFilesType,
    @required this.filesMaxSize,
    @required this.writingEventInterval,
    @required this.writingEventLifetime,
    @required this.maxMessageImageWidth,
    @required this.maxMessageImageHeight,
    @required this.maxThumbnailWidth,
    @required this.maxThumbnailHeight,
  })  : assert(minMessageLen != null),
        assert(maxMessageLen != null),
        assert(allowedFilesType != null),
        assert(filesMaxSize != null),
        assert(writingEventInterval != null),
        assert(writingEventLifetime != null),
        assert(maxMessageImageWidth != null),
        assert(maxMessageImageHeight != null),
        assert(maxThumbnailWidth != null),
        assert(maxThumbnailHeight != null);
}

class ServerConfig {
  final Version minSupportedMobileVersion;
  final String termsURL;
  final String playStoreURL;
  final String androidDirectDownloadURL;
  final PasswordPolicy passwordPolicy;
  final ServerDataConservationPolicy dataConservationPolicy;
  final ConversationsPolicy conversationsPolicy;

  const ServerConfig({
    @required this.minSupportedMobileVersion,
    @required this.termsURL,
    @required this.playStoreURL,
    @required this.androidDirectDownloadURL,
    @required this.passwordPolicy,
    @required this.dataConservationPolicy,
    @required this.conversationsPolicy,
  })  : assert(minSupportedMobileVersion != null),
        assert(termsURL != null),
        assert(playStoreURL != null),
        assert(androidDirectDownloadURL != null),
        assert(passwordPolicy != null),
        assert(dataConservationPolicy != null),
        assert(conversationsPolicy != null);
}