// assistance state is, user has not typed a message, user has typed a message and IGC has not run,
// IGC is running, IGC has run and there are remaining steps (either IT or IGC), or all steps are done
// Or user does not have a subscription

import 'package:flutter/material.dart';

import 'package:fluffychat/config/app_config.dart';

enum AssistanceStateEnum {
  noSub,
  noMessage,
  notFetched,
  fetching,
  fetched,
  complete,
  error;

  Color stateColor(context) {
    switch (this) {
      case AssistanceStateEnum.noSub:
      case AssistanceStateEnum.noMessage:
      case AssistanceStateEnum.fetched:
      case AssistanceStateEnum.error:
        return Theme.of(context).disabledColor;
      case AssistanceStateEnum.notFetched:
      case AssistanceStateEnum.fetching:
        return Theme.of(context).colorScheme.primary;
      case AssistanceStateEnum.complete:
        return AppConfig.success;
    }
  }

  Color sendButtonColor(context) {
    switch (this) {
      case AssistanceStateEnum.noMessage:
      case AssistanceStateEnum.fetched:
        return Theme.of(context).disabledColor;
      case AssistanceStateEnum.noSub:
      case AssistanceStateEnum.error:
      case AssistanceStateEnum.notFetched:
      case AssistanceStateEnum.fetching:
        return Theme.of(context).colorScheme.primary;
      case AssistanceStateEnum.complete:
        return AppConfig.success;
    }
  }

  bool get allowsFeedback => switch (this) {
        AssistanceStateEnum.notFetched => true,
        _ => false,
      };

  Color backgroundColor(BuildContext context) => switch (this) {
        AssistanceStateEnum.noSub ||
        AssistanceStateEnum.noMessage ||
        AssistanceStateEnum.fetched ||
        AssistanceStateEnum.complete ||
        AssistanceStateEnum.error =>
          Theme.of(context).colorScheme.surfaceContainerHighest,
        _ => Theme.of(context).colorScheme.primaryContainer,
      };
}