public async Task GiveTownAsync(
[FromRoute] uint townId,
[FromRoute] uint countryId)
{
ErrorCode.NotSupportedError.Throw();
using (var repo = MainRepository.WithReadAndWrite())
{
var system = await repo.System.GetAsync();
if (system.RuleSet == GameRuleSet.SimpleBattle)
{
ErrorCode.RuleSetError.Throw();
}
var chara = await repo.Character.GetByIdAsync(this.AuthData.CharacterId).GetOrErrorAsync(ErrorCode.LoginCharacterNotFoundError);
var myPosts = await repo.Country.GetCharacterPostsAsync(chara.Id);
if (!myPosts.Any(p => p.Type.CanDiplomacy()))
{
ErrorCode.NotPermissionError.Throw();
}
var country = await repo.Country.GetAliveByIdAsync(chara.CountryId).GetOrErrorAsync(ErrorCode.CountryNotFoundError);
var targetTown = await repo.Town.GetByIdAsync(townId).GetOrErrorAsync(ErrorCode.TownNotFoundError);
var targetCountry = await repo.Country.GetAliveByIdAsync(countryId).GetOrErrorAsync(ErrorCode.CountryNotFoundError);
if (targetTown.CountryId != chara.CountryId)
{
// 自分以外の国の都市を割譲できない
ErrorCode.InvalidOperationError.Throw();
}
if (targetCountry.AiType != CountryAiType.Human)
{
// AI国家に割譲できない
ErrorCode.InvalidOperationError.Throw();
}
var allTowns = await repo.Town.GetAllAsync();
if (!allTowns.GetAroundCountries(targetTown).Contains(countryId))
{
// 割譲で飛び地は作れない
ErrorCode.InvalidOperationError.Throw();
}
var isSurrender = allTowns.Count(t => t.CountryId == chara.CountryId) == 1;
// 割譲
var defenders = (await repo.Town.GetAllDefendersAsync()).Where(d => d.TownId == townId);
foreach (var d in defenders)
{
repo.Town.RemoveDefender(d.CharacterId);
await StatusStreaming.Default.SendTownToAllAsync(ApiData.From(d), repo, targetTown);
}
targetTown.CountryId = targetCountry.Id;
var townCharacters = await repo.Town.GetCharactersAsync(townId);
foreach (var character in townCharacters)
{
await CharacterService.StreamCharacterAsync(repo, character);
}
await StatusStreaming.Default.SendTownToAllAsync(ApiData.From(targetTown), repo);
await AnonymousStreaming.Default.SendAllAsync(ApiData.From(new TownForAnonymous(targetTown)));
await LogService.AddMapLogAsync(repo, true, EventType.Concession, $"<country>{country.Name}</country> は、<country>{targetCountry.Name}</country> に <town>{targetTown.Name}</town> を割譲しました");
if (isSurrender)
{
// 降伏
await CountryService.OverThrowAsync(repo, country, targetCountry);
await LogService.AddMapLogAsync(repo, true, EventType.Surrender, $"<country>{country.Name}</country> は、<country>{targetCountry.Name}</country> に降伏しました");
}
}
}