import 'package:isekai_wiki/api/mw/mw_api.dart';
import 'package:isekai_wiki/api/response/page_info.dart';
import 'package:isekai_wiki/api/response/recent_changes.dart';

class MWApiList {
  /// 获取最近更改列表
  static Future<MWResponse<List<RecentChangesItem>>> getRecentChanges(String type,
      {int? limit, Map<String, String>? continueInfo}) async {
    var query = {
      "list": "recentchanges",
      "rctype": type,
      "rcnamespace": 0,
      "rclimit": limit,
    };
    if (continueInfo != null && continueInfo.containsKey("rccontinue")) {
      query["rccontinue"] = continueInfo["rccontinue"];
    }

    var mwRes = await MWApi.get("query", params: query);
    var rcRes = RecentChangesResponse.fromJson(mwRes.data);

    return mwRes.replaceData(rcRes.recentchanges);
  }

  /// 获取合并的最近更改列表（包括新页面和最近更新）
  static Future<MWResponse<List<RecentChangesItem>>> getMixedRecentChanges(
      {int? limit, Map<String, String>? continueInfo}) async {
    Map<String, String> continueInfoNew = {};
    Map<String, String> continueInfoEdit = {};

    bool ignoreRcNew = false;
    bool ignoreRcEdit = false;

    if (continueInfo != null) {
      ignoreRcNew = true;
      ignoreRcEdit = true;

      if (continueInfo.containsKey("rcnewcontinue")) {
        continueInfoNew["rccontinue"] = continueInfo["rcnewcontinue"]!;
        ignoreRcNew = false;
      }
      if (continueInfo.containsKey("rceditcontinue")) {
        continueInfoEdit["rccontinue"] = continueInfo["rceditcontinue"]!;
        ignoreRcEdit = false;
      }
    }

    var rcResList = await Future.wait([
      ignoreRcNew
          ? Future.value(MWResponse<List<RecentChangesItem>>([]))
          : getRecentChanges("new", limit: limit, continueInfo: continueInfoNew),
      ignoreRcEdit
          ? Future.value(MWResponse<List<RecentChangesItem>>([]))
          : getRecentChanges("edit", limit: limit, continueInfo: continueInfoEdit),
    ]);

    var rcNewRes = rcResList[0];
    var rcEditRes = rcResList[1];

    List<RecentChangesItem> mergedList = [...rcNewRes.data, ...rcEditRes.data];

    mergedList.sort((a, b) {
      // 为新页面添加7天的保护期
      var timeA = a.type == "new" ? a.timestamp.add(const Duration(days: 7)) : a.timestamp;
      var timeB = b.type == "new" ? b.timestamp.add(const Duration(days: 7)) : b.timestamp;

      return timeB.compareTo(timeA);
    });

    List<RecentChangesItem> uniqueMergedList = [];
    for (var page in mergedList) {
      if (uniqueMergedList.indexWhere((element) => element.pageid == page.pageid) == -1) {
        uniqueMergedList.add(page);
      }
    }

    Map<String, String> mergedContinueInfo = {};
    if (rcNewRes.continueInfo != null && rcNewRes.continueInfo!.containsKey("rccontinue")) {
      mergedContinueInfo["rcnewcontinue"] = rcNewRes.continueInfo!["rccontinue"]!;
    }
    if (rcEditRes.continueInfo != null && rcEditRes.continueInfo!.containsKey("rccontinue")) {
      mergedContinueInfo["rceditcontinue"] = rcEditRes.continueInfo!["rccontinue"]!;
    }

    return MWResponse(
      uniqueMergedList,
      continueInfo: mergedContinueInfo.isNotEmpty ? mergedContinueInfo : null,
    );
  }

  static Future<MWResponse<List<PageInfo>>> getPageInfoList(
      {List<int>? pageids,
      List<String>? titles,
      List<String>? prop,
      Map<String, dynamic>? extraParams,
      bool getInWatchlist = false,
      int extractChars = 200}) async {
    prop ??= ["extracts", "info", "pageimages"];

    Map<String, dynamic> query = {
      "redirects": 1,
      "converttitles": 1,
      "exintro": 1,
      "explaintext": 1,
      "exchars": extractChars,
      "inprop": "url",
      "piprop": "thumbnail",
      "pithumbsize": 640,
      "pilicense": "any"
    };

    if (getInWatchlist) {
      prop.add("inwatchlist");
    }
    query["prop"] = prop.join("|");

    if (pageids != null) {
      query["pageids"] = pageids.join("|");
    }
    if (titles != null) {
      query["titles"] = titles.join("|");
    }

    if (extraParams != null) {
      query.addAll(extraParams);
    }

    var mwRes = await MWApi.get("query", params: query);

    var pagesRes = PagesResponse.fromJson(mwRes.data);

    var pageList = pagesRes.pages.map((pageInfo) {
      if (pageInfo.description != null) {
        pageInfo.description = pageInfo.description!.replaceAll(RegExp(r"\n\n"), "\n");
      }
      if (pageInfo.title.contains("/")) {
        var splitPos = pageInfo.title.lastIndexOf("/");
        pageInfo.displayTitle = pageInfo.title.substring(splitPos + 1);
        pageInfo.subtitle = pageInfo.title.substring(0, splitPos);
      } else {
        pageInfo.displayTitle = pageInfo.title;
      }
      return pageInfo;
    }).toList();
    // 按照传入顺序对页面进行排序
    List<PageInfo> sortedPages = [];

    if (pageids != null) {
      for (var pageid in pageids) {
        var index = pageList.indexWhere((element) => element.pageid == pageid);
        if (index != -1) {
          sortedPages.add(pageList[index]);
        }
      }
    }

    if (titles != null) {
      for (var title in titles) {
        var index = pagesRes.pages.indexWhere((element) => element.title == title);
        if (index != -1) {
          sortedPages.add(pagesRes.pages[index]);
        }
      }
    }

    return mwRes.replaceData(sortedPages);
  }
}