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matarillo/Fold_Immutable.cs

Last active September 6, 2020 12:39
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Fold_Immutable.cs
using System;
using System.Collections.Generic;
using System.Linq;
class Program
{
static void Main(string[] args)
{
var rawItems = GetRawitems();
var organizations = ToOrganizations(rawItems);
Console.WriteLine(organizations.First());
}
static IReadOnlyList<Organization> ToOrganizations(IEnumerable<RawItem> organizations)
{
IReadOnlyList<Organization> Concat(IReadOnlyList<Organization> orgs, Organization org)
{
var vector = new List<Organization>(orgs.Count + 1);
if (orgs.Count > 0 && orgs[orgs.Count - 1].Name == org.Name)
{
var last = orgs[orgs.Count - 1];
vector.AddRange(orgs.Take(orgs.Count - 1));
vector.Add(new Organization(last.Id, last.Name, org.Children.Aggregate(last.Children, Concat)));
}
else
{
vector.AddRange(orgs);
vector.Add(org);
}
return vector.AsReadOnly();
}
var empty = new Organization[0];
Organization[] single(Organization org) => new Organization[1] { org };
return organizations.Aggregate(empty as IReadOnlyList<Organization>, (orgs, r) =>
{
var lv4 = r.OrganizationLv4 != null ? single(new Organization(r.Id, r.OrganizationLv4)) : empty;
var lv3 = r.OrganizationLv3 != null ? single(new Organization(r.Id, r.OrganizationLv3, lv4)) : empty;
var lv2 = r.OrganizationLv2 != null ? single(new Organization(r.Id, r.OrganizationLv2, lv3)) : empty;
var lv1 = new Organization(r.Id, r.OrganizationLv1, lv2);
return Concat(orgs, lv1);
});
}
static RawItem[] GetRawitems()
{
return new[]
{
new RawItem { Id="Z0000", OrganizationLv1="座間市" },
new RawItem { Id="Z0100", OrganizationLv1="座間市", OrganizationLv2="市長室" },
new RawItem { Id="Z0110", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="市政戦略課" },
new RawItem { Id="Z0111", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="市政戦略課", OrganizationLv4="市政戦略係" },
new RawItem { Id="Z0112", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="市政戦略課", OrganizationLv4="広報戦略係" },
new RawItem { Id="Z0120", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="渉外課" },
new RawItem { Id="Z0121", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="渉外課", OrganizationLv4="交流・基地対策係" },
new RawItem { Id="Z0130", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="危機管理課" },
new RawItem { Id="Z0131", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="危機管理課", OrganizationLv4="危機管理・防災係" },
new RawItem { Id="Z0140", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="秘書課" },
new RawItem { Id="Z0141", OrganizationLv1="座間市", OrganizationLv2="市長室", OrganizationLv3="秘書課", OrganizationLv4="秘書係" },
new RawItem { Id="Z0200", OrganizationLv1="座間市", OrganizationLv2="企画財政部" },
new RawItem { Id="Z0210", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="企画政策課" },
new RawItem { Id="Z0211", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="企画政策課", OrganizationLv4="企画政策係" },
new RawItem { Id="Z0212", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="企画政策課", OrganizationLv4="事務管理係" },
new RawItem { Id="Z0213", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="企画政策課", OrganizationLv4="特別定額給付金担当" },
new RawItem { Id="Z0220", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="財政課" },
new RawItem { Id="Z0221", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="財政課", OrganizationLv4="財政係" },
new RawItem { Id="Z0230", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="市民税課" },
new RawItem { Id="Z0231", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="市民税課", OrganizationLv4="諸税係" },
new RawItem { Id="Z0232", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="市民税課", OrganizationLv4="市民税係" },
new RawItem { Id="Z0240", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="固定資産税課" },
new RawItem { Id="Z0241", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="固定資産税課", OrganizationLv4="土地係" },
new RawItem { Id="Z0242", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="固定資産税課", OrganizationLv4="家屋係" },
new RawItem { Id="Z0250", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="収納課" },
new RawItem { Id="Z0251", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="収納課", OrganizationLv4="収納対策係" },
new RawItem { Id="Z0252", OrganizationLv1="座間市", OrganizationLv2="企画財政部", OrganizationLv3="収納課", OrganizationLv4="整理係" },
new RawItem { Id="Z0300", OrganizationLv1="座間市", OrganizationLv2="総務部" },
new RawItem { Id="Z0310", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="文書法制課" },
new RawItem { Id="Z0311", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="文書法制課", OrganizationLv4="情報公開係" },
new RawItem { Id="Z0312", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="文書法制課", OrganizationLv4="法制係" },
new RawItem { Id="Z0320", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="職員課" },
new RawItem { Id="Z0321", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="職員課", OrganizationLv4="人事研修係" },
new RawItem { Id="Z0322", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="職員課", OrganizationLv4="給与厚生係" },
new RawItem { Id="Z0330", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="財産管理課" },
new RawItem { Id="Z0331", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="財産管理課", OrganizationLv4="財産管理係" },
new RawItem { Id="Z0332", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="財産管理課", OrganizationLv4="用地係" },
new RawItem { Id="Z0340", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="契約検査課" },
new RawItem { Id="Z0341", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="契約検査課", OrganizationLv4="契約係" },
new RawItem { Id="Z0342", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="契約検査課", OrganizationLv4="検査担当" },
new RawItem { Id="Z0350", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="情報システム課" },
new RawItem { Id="Z0351", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="情報システム課", OrganizationLv4="情報システム係" },
new RawItem { Id="Z0352", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="情報システム課", OrganizationLv4="情報企画係" },
new RawItem { Id="Z0353", OrganizationLv1="座間市", OrganizationLv2="総務部", OrganizationLv3="情報システム課", OrganizationLv4="統計担当" },
new RawItem { Id="Z0400", OrganizationLv1="座間市", OrganizationLv2="市民部" },
new RawItem { Id="Z0410", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="市民協働課" },
new RawItem { Id="Z0411", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="市民協働課", OrganizationLv4="市民活動係" },
new RawItem { Id="Z0412", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="市民協働課", OrganizationLv4="交通防犯係" },
new RawItem { Id="Z0420", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="戸籍住民課" },
new RawItem { Id="Z0421", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="戸籍住民課", OrganizationLv4="窓口係" },
new RawItem { Id="Z0422", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="戸籍住民課", OrganizationLv4="戸籍係" },
new RawItem { Id="Z0430", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="広聴人権課" },
new RawItem { Id="Z0431", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="広聴人権課", OrganizationLv4="広聴相談係" },
new RawItem { Id="Z0432", OrganizationLv1="座間市", OrganizationLv2="市民部", OrganizationLv3="広聴人権課", OrganizationLv4="人権・男女共同参画係" },
new RawItem { Id="Z0500", OrganizationLv1="座間市", OrganizationLv2="環境経済部" },
new RawItem { Id="Z0510", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="環境政策課" },
new RawItem { Id="Z0511", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="環境政策課", OrganizationLv4="環境政策係" },
new RawItem { Id="Z0512", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="環境政策課", OrganizationLv4="環境保全係" },
new RawItem { Id="Z0520", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="資源対策課" },
new RawItem { Id="Z0521", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="資源対策課", OrganizationLv4="資源対策係" },
new RawItem { Id="Z0522", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="資源対策課", OrganizationLv4="業務係" },
new RawItem { Id="Z0530", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="商工観光課" },
new RawItem { Id="Z0531", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="商工観光課", OrganizationLv4="商工観光係" },
new RawItem { Id="Z0540", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="農政課" },
new RawItem { Id="Z0541", OrganizationLv1="座間市", OrganizationLv2="環境経済部", OrganizationLv3="農政課", OrganizationLv4="農政係" },
new RawItem { Id="Z0600", OrganizationLv1="座間市", OrganizationLv2="健康部" },
new RawItem { Id="Z0610", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="健康づくり課" },
new RawItem { Id="Z0611", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="健康づくり課", OrganizationLv4="健康づくり係" },
new RawItem { Id="Z0612", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="健康づくり課", OrganizationLv4="保健予防係" },
new RawItem { Id="Z0620", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="スポーツ課" },
new RawItem { Id="Z0621", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="スポーツ課", OrganizationLv4="振興係" },
new RawItem { Id="Z0622", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="スポーツ課", OrganizationLv4="施設係" },
new RawItem { Id="Z0630", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="医療課" },
new RawItem { Id="Z0631", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="医療課", OrganizationLv4="医療対策係" },
new RawItem { Id="Z0632", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="医療課", OrganizationLv4="医療給付係" },
new RawItem { Id="Z0640", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="国保年金課" },
new RawItem { Id="Z0641", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="国保年金課", OrganizationLv4="国保係" },
new RawItem { Id="Z0642", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="国保年金課", OrganizationLv4="給付係" },
new RawItem { Id="Z0643", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="国保年金課", OrganizationLv4="年金係" },
new RawItem { Id="Z0650", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="介護保険課" },
new RawItem { Id="Z0651", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="介護保険課", OrganizationLv4="保険係" },
new RawItem { Id="Z0652", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="介護保険課", OrganizationLv4="認定係" },
new RawItem { Id="Z0653", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="介護保険課", OrganizationLv4="事業者支援係" },
new RawItem { Id="Z0654", OrganizationLv1="座間市", OrganizationLv2="健康部", OrganizationLv3="介護保険課", OrganizationLv4="地域支援係" },
new RawItem { Id="Z0600", OrganizationLv1="座間市", OrganizationLv2="福祉部" },
new RawItem { Id="Z0610", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="福祉長寿課" },
new RawItem { Id="Z0611", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="福祉長寿課", OrganizationLv4="福祉総務係" },
new RawItem { Id="Z0612", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="福祉長寿課", OrganizationLv4="長寿係" },
new RawItem { Id="Z0620", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="障がい福祉課" },
new RawItem { Id="Z0621", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="障がい福祉課", OrganizationLv4="障がい福祉係" },
new RawItem { Id="Z0622", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="障がい福祉課", OrganizationLv4="障がい者支援係" },
new RawItem { Id="Z0630", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="生活援護課" },
new RawItem { Id="Z0631", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="生活援護課", OrganizationLv4="経理係" },
new RawItem { Id="Z0632", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="生活援護課", OrganizationLv4="生活援護第１係" },
new RawItem { Id="Z0633", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="生活援護課", OrganizationLv4="生活援護第２係" },
new RawItem { Id="Z0634", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="生活援護課", OrganizationLv4="生活援護第３係" },
new RawItem { Id="Z0635", OrganizationLv1="座間市", OrganizationLv2="福祉部", OrganizationLv3="生活援護課", OrganizationLv4="自立サポート担当" },
new RawItem { Id="Z0700", OrganizationLv1="座間市", OrganizationLv2="子ども未来部" },
new RawItem { Id="Z0710", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="子ども政策課" },
new RawItem { Id="Z0711", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="子ども政策課", OrganizationLv4="子ども政策係" },
new RawItem { Id="Z0712", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="子ども政策課", OrganizationLv4="児童相談係" },
new RawItem { Id="Z0720", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="子ども育成課" },
new RawItem { Id="Z0721", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="子ども育成課", OrganizationLv4="子ども育成係" },
new RawItem { Id="Z0722", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="子ども育成課", OrganizationLv4="児童支援係" },
new RawItem { Id="Z0730", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="保育課" },
new RawItem { Id="Z0731", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="保育課", OrganizationLv4="庶務施設係" },
new RawItem { Id="Z0732", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="保育課", OrganizationLv4="保育係" },
new RawItem { Id="Z0740", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="青少年課" },
new RawItem { Id="Z0741", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="青少年課", OrganizationLv4="青少年係" },
new RawItem { Id="Z0742", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="青少年課", OrganizationLv4="青少年相談室" },
new RawItem { Id="Z0743", OrganizationLv1="座間市", OrganizationLv2="子ども未来部", OrganizationLv3="青少年課", OrganizationLv4="青少年センター" },
new RawItem { Id="Z0800", OrganizationLv1="座間市", OrganizationLv2="都市部" },
new RawItem { Id="Z0810", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="都市計画課" },
new RawItem { Id="Z0811", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="都市計画課", OrganizationLv4="都市計画係" },
new RawItem { Id="Z0812", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="都市計画課", OrganizationLv4="市街地整備係" },
new RawItem { Id="Z0820", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="公園緑政課" },
new RawItem { Id="Z0821", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="公園緑政課", OrganizationLv4="緑政係" },
new RawItem { Id="Z0822", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="公園緑政課", OrganizationLv4="施設係" },
new RawItem { Id="Z0830", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="建築住宅課" },
new RawItem { Id="Z0831", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="建築住宅課", OrganizationLv4="建築係" },
new RawItem { Id="Z0832", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="建築住宅課", OrganizationLv4="指導係" },
new RawItem { Id="Z0833", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="建築住宅課", OrganizationLv4="市営住宅係" },
new RawItem { Id="Z0840", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="道路課" },
new RawItem { Id="Z0841", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="道路課", OrganizationLv4="管理係" },
new RawItem { Id="Z0842", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="道路課", OrganizationLv4="整備係" },
new RawItem { Id="Z0843", OrganizationLv1="座間市", OrganizationLv2="都市部", OrganizationLv3="道路課", OrganizationLv4="維持補修係" },
new RawItem { Id="Z0900", OrganizationLv1="座間市", OrganizationLv2="会計管理者" },
new RawItem { Id="Z0910", OrganizationLv1="座間市", OrganizationLv2="会計管理者", OrganizationLv3="会計課" },
new RawItem { Id="Z0911", OrganizationLv1="座間市", OrganizationLv2="会計管理者", OrganizationLv3="会計課", OrganizationLv4="会計係" }
};
}
}
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