dart-app-core/lib/utils/slack/slack_data.dart

import 'dart:async';
import 'dart:convert';
import 'dart:io';

import 'package:json_annotation/json_annotation.dart';
import 'package:http/http.dart';
// ignore: depend_on_referenced_packages, implementation_imports
import 'package:http_parser/src/media_type.dart';
part 'slack_data.g.dart';

enum SlackBlockType { header, section }

enum SlackTextType { mrkdwn, plain_text }

enum SlackActionType { button, select }

enum SlackActionStyle { danger, primary }

@JsonSerializable()
class DataSlack {
  String? message;
  List<SlackBlock> blocks = [];
  List<SlackAttachment> attachments = [];

  String getBlocks() {
    var list = [];
    for (var item in blocks) {
      list.add(item.toJson());
    }
    return jsonEncode(list);
  }

  String getAttachments() {
    var list = [];
    for (var item in attachments) {
      list.add(item.toJson());
    }
    return jsonEncode(list);
  }

  DataSlack();

  factory DataSlack.fromJson(Map<String, dynamic> json) =>
      _$DataSlackFromJson(json);
  Map<String, dynamic> toJson() => _$DataSlackToJson(this);
}

@JsonSerializable()
class SlackBlock {
  late SlackBlockType type;

  SlackBlock();

  factory SlackBlock.fromJson(Map<String, dynamic> json) =>
      _$SlackBlockFromJson(json);
  Map<String, dynamic> toJson() => _$SlackBlockToJson(this);
}

@JsonSerializable()
class SlackBlockHeader extends SlackBlock {
  late SlackBlockText text;

  SlackBlockHeader() {
    super.type = SlackBlockType.header;
    text = SlackBlockText();
    text.type = SlackTextType.plain_text;
  }

  factory SlackBlockHeader.fromJson(Map<String, dynamic> json) =>
      _$SlackBlockHeaderFromJson(json);
  @override
  Map<String, dynamic> toJson() => _$SlackBlockHeaderToJson(this);
}

@JsonSerializable()
class SlackBlockSection extends SlackBlock {
  List<SlackBlockSectionField> fields = [];

  SlackBlockSection() {
    super.type = SlackBlockType.section;
  }

  factory SlackBlockSection.fromJson(Map<String, dynamic> json) =>
      _$SlackBlockSectionFromJson(json);
  @override
  Map<String, dynamic> toJson() => _$SlackBlockSectionToJson(this);
}

@JsonSerializable()
class SlackBlockSectionField {
  SlackTextType type = SlackTextType.mrkdwn;
  String? text;

  SlackBlockSectionField();

  factory SlackBlockSectionField.fromJson(Map<String, dynamic> json) =>
      _$SlackBlockSectionFieldFromJson(json);
  Map<String, dynamic> toJson() => _$SlackBlockSectionFieldToJson(this);
}

@JsonSerializable()
class SlackBlockText {
  SlackTextType type = SlackTextType.mrkdwn;
  String? text;

  SlackBlockText();

  factory SlackBlockText.fromJson(Map<String, dynamic> json) =>
      _$SlackBlockTextFromJson(json);
  Map<String, dynamic> toJson() => _$SlackBlockTextToJson(this);
}

@JsonSerializable()
class SlackAttachment {
  String? fallback;
  String? color;
  String? author_name;
  String? author_link;
  String? author_icon;
  String? title;
  String? title_link;
  String? pretext;
  String? text;
  String? image_url;
  String? thumb_url;
  String? footer;
  String? footer_icon;
  String? ts;

  List<SlackField>? fields;
  List<SlackAction>? actions;

  SlackAttachment();

  factory SlackAttachment.fromJson(Map<String, dynamic> json) =>
      _$SlackAttachmentFromJson(json);
  Map<String, dynamic> toJson() => _$SlackAttachmentToJson(this);
}

@JsonSerializable()
class SlackField {
  String? title;
  String? value;

  SlackField();
  SlackField.withParam(this.title, this.value);

  factory SlackField.fromJson(Map<String, dynamic> json) =>
      _$SlackFieldFromJson(json);
  Map<String, dynamic> toJson() => _$SlackFieldToJson(this);
}

@JsonSerializable()
class SlackAction {
  SlackActionType? type;
  String? name;
  String? text;
  String? url;
  String? value;
  SlackActionStyle? style;
  /*SlackField options;
	SlackConfirm confirm;*/

  SlackAction();
  SlackAction.withParam(
      this.name, this.text, this.url, this.value, this.type, this.style);

  factory SlackAction.fromJson(Map<String, dynamic> json) =>
      _$SlackActionFromJson(json);
  Map<String, dynamic> toJson() => _$SlackActionToJson(this);
}

@JsonSerializable()
class SlackConfirm {
  String? title;
  String? text;
  // ignore: non_constant_identifier_names
  String? ok_text;
  // ignore: non_constant_identifier_names
  String? dismiss_text;
}

class SlackFile {
  String? title;
  // ignore: non_constant_identifier_names
  String? initial_comment;
  String? fileName;
  String? mimeType;
  late File file;

  Future<MultipartRequest> setFileData(MultipartRequest form) async {
    // var bytes = await readFileByte(filePath!);
    if (title != null) {
      form.fields['title'] = title!;
    }
    if (initial_comment != null) {
      form.fields['initial_comment'] = initial_comment!;
    }
    form.fields['filetype'] =
        "auto"; //참조 - https://api.slack.com/types/file#file_types
    if (fileName != null && mimeType != null) {
      form.files.add(await MultipartFile.fromPath('file', file.path,
          contentType: MediaType(HttpHeaders.contentTypeHeader, mimeType!)));
    }
    var c = Completer<MultipartRequest>();
    c.complete(form);
    return c.future;
  }
}