import 'dart:convert';
import 'package:hiddingsel_app/appflow/model/represented_organisations.dart';

import '../../../services/network.dart';
import '../../model/articles.dart';
import 'package:http/http.dart';

class WordpressController {

  static const String _baseUrl = 'www.hiddingsel.de';
  static const String _path = 'wp-json/wp/v2/posts';
  static const String _parameterPage = 'page';
  static const String _parameterPerPage = 'per_page';
  static const String _parameterSearch = 'search';
  static const String _parameterCategories = 'categories';
  static const String _parameterEmbed = '_embed';
  static const int _httpCodeKeineWeiterenArticel = 400;

  static Future<List<ArticleModel>> getArticles(int page, int itemCount) =>
      BaseService.getSaveFromServer(
              () => _getArticles(page, itemCount),
              List<ArticleModel>.empty()
      );

  static Future<List<ArticleModel>> searchArticles(int page, int itemCount, String searchWord) =>
      BaseService.getSaveFromServer(
              () => _getArticles(page, itemCount, searchWord: searchWord),
          List<ArticleModel>.empty()
      );

  static Future<List<ArticleModel>> getArticlesFromOrganisations(int page, int itemCount, List<RepresentedOrganisationModel> organisations) =>
      BaseService.getSaveFromServer(
              () => _getArticles(page, itemCount, organisations: organisations),
          List<ArticleModel>.empty()
      );

  static Future<List<ArticleModel>> _getArticles(int page, int itemCount, {String? searchWord, List<RepresentedOrganisationModel>? organisations}) async {

    final parameters = <String, dynamic> {
      _parameterPage: (page + 1).toString(),
      _parameterPerPage: itemCount.toString(),
      _parameterSearch: searchWord,
      _parameterCategories: organisations?.map((e) => e.wordpressId).join(','),
      _parameterEmbed: null,
    };

    if(searchWord?.isEmpty ?? true) {
      parameters.remove(_parameterSearch);
    }
    if(organisations?.isEmpty ?? true) {
      parameters.remove(_parameterCategories);
    }

    final uri = Uri.https(_baseUrl, _path, parameters);
    final response = await get(uri);

    if (response.statusCode == _httpCodeKeineWeiterenArticel) {
      return [];
    }

    final jsonData = json.decode(response.body);
    return jsonData.map((article) => ArticleModel.fromWordpressJson(article)).cast<ArticleModel>().toList();
  }
}