BirthdayBot/TextCommands/ListingCommands.cs

313 lines
13 KiB
C#

#pragma warning disable CS0618
using BirthdayBot.Data;
using System.Text;
namespace BirthdayBot.TextCommands;
/// <summary>
/// Commands for listing upcoming and all birthdays.
/// </summary>
internal class ListingCommands : CommandsCommon {
public ListingCommands(Configuration db) : base(db) { }
public override IEnumerable<(string, CommandHandler)> Commands
=> new List<(string, CommandHandler)>()
{
("list", CmdList),
("upcoming", CmdUpcoming),
("recent", CmdUpcoming),
("when", CmdWhen)
};
#region Documentation
public static readonly CommandDocumentation DocList =
new(new string[] { "list" }, "Exports all birthdays to a file."
+ " Accepts `csv` as an optional parameter.", null);
public static readonly CommandDocumentation DocUpcoming =
new(new string[] { "recent", "upcoming" }, "Lists recent and upcoming birthdays.", null);
public static readonly CommandDocumentation DocWhen =
new(new string[] { "when" }, "Displays the given user's birthday information.", null);
#endregion
private async Task CmdWhen(ShardInstance instance, GuildConfiguration gconf,
string[] param, SocketTextChannel reqChannel, SocketGuildUser reqUser) {
if (!await HasMemberCacheAsync(reqChannel.Guild)) {
await reqChannel.SendMessageAsync(MemberCacheEmptyError);
return;
}
// Requires a parameter
if (param.Length == 1) {
await reqChannel.SendMessageAsync(ParameterError, embed: DocWhen.UsageEmbed).ConfigureAwait(false);
return;
}
var search = param[1];
if (param.Length == 3) {
// param maxes out at 3 values. param[2] might contain part of the search string (if name has a space)
search += " " + param[2];
}
SocketGuildUser? searchTarget = null;
if (!TryGetUserId(search, out ulong searchId)) // ID lookup
{
// name lookup without discriminator
foreach (var searchuser in reqChannel.Guild.Users) {
if (string.Equals(search, searchuser.Username, StringComparison.OrdinalIgnoreCase)) {
searchTarget = searchuser;
break;
}
}
} else {
searchTarget = reqChannel.Guild.GetUser(searchId);
}
if (searchTarget == null) {
await reqChannel.SendMessageAsync(BadUserError, embed: DocWhen.UsageEmbed).ConfigureAwait(false);
return;
}
var searchTargetData = await GuildUserConfiguration.LoadAsync(reqChannel.Guild.Id, searchId).ConfigureAwait(false);
if (!searchTargetData.IsKnown) {
await reqChannel.SendMessageAsync("I do not have birthday information for that user.").ConfigureAwait(false);
return;
}
string result = Common.FormatName(searchTarget, false);
result += ": ";
result += $"`{searchTargetData.BirthDay:00}-{Common.MonthNames[searchTargetData.BirthMonth]}`";
result += searchTargetData.TimeZone == null ? "" : $" - `{searchTargetData.TimeZone}`";
await reqChannel.SendMessageAsync(result).ConfigureAwait(false);
}
// Creates a file with all birthdays.
private async Task CmdList(ShardInstance instance, GuildConfiguration gconf,
string[] param, SocketTextChannel reqChannel, SocketGuildUser reqUser) {
// For now, we're restricting this command to moderators only. This may turn into an option later.
if (!gconf.IsBotModerator(reqUser)) {
// Do not add detailed usage information to this error message.
await reqChannel.SendMessageAsync(":x: Only bot moderators may use this command.").ConfigureAwait(false);
return;
}
if (!await HasMemberCacheAsync(reqChannel.Guild)) {
await reqChannel.SendMessageAsync(MemberCacheEmptyError);
return;
}
bool useCsv = false;
// Check for CSV option
if (param.Length == 2) {
if (param[1].ToLower() == "csv") useCsv = true;
else {
await reqChannel.SendMessageAsync(":x: That is not available as an export format.", embed: DocList.UsageEmbed)
.ConfigureAwait(false);
return;
}
} else if (param.Length > 2) {
await reqChannel.SendMessageAsync(ParameterError, embed: DocList.UsageEmbed).ConfigureAwait(false);
return;
}
var bdlist = await GetSortedUsersAsync(reqChannel.Guild).ConfigureAwait(false);
var filepath = Path.GetTempPath() + "birthdaybot-" + reqChannel.Guild.Id;
string fileoutput;
if (useCsv) {
fileoutput = ListExportCsv(reqChannel, bdlist);
filepath += ".csv";
} else {
fileoutput = ListExportNormal(reqChannel, bdlist);
filepath += ".txt.";
}
await File.WriteAllTextAsync(filepath, fileoutput, Encoding.UTF8).ConfigureAwait(false);
try {
await reqChannel.SendFileAsync(filepath, $"Exported {bdlist.Count} birthdays to file.").ConfigureAwait(false);
} catch (Discord.Net.HttpException) {
reqChannel.SendMessageAsync(":x: Unable to send list due to a permissions issue. Check the 'Attach Files' permission.").Wait();
} catch (Exception ex) {
Program.Log("Listing", ex.ToString());
reqChannel.SendMessageAsync(ShardInstance.InternalError).Wait();
} finally {
File.Delete(filepath);
}
}
// "Recent and upcoming birthdays"
// The 'recent' bit removes time zone ambiguity and spares us from extra time zone processing here
private async Task CmdUpcoming(ShardInstance instance, GuildConfiguration gconf,
string[] param, SocketTextChannel reqChannel, SocketGuildUser reqUser) {
if (!await HasMemberCacheAsync(reqChannel.Guild)) {
await reqChannel.SendMessageAsync(MemberCacheEmptyError);
return;
}
var now = DateTimeOffset.UtcNow;
var search = DateIndex(now.Month, now.Day) - 8; // begin search 8 days prior to current date UTC
if (search <= 0) search = 366 - Math.Abs(search);
var query = await GetSortedUsersAsync(reqChannel.Guild).ConfigureAwait(false);
var output = new StringBuilder();
var resultCount = 0;
output.AppendLine("Recent and upcoming birthdays:");
for (int count = 0; count <= 21; count++) // cover 21 days total (7 prior, current day, 14 upcoming)
{
var results = from item in query
where item.DateIndex == search
select item;
// push up search by 1 now, in case we back out early
search += 1;
if (search > 366) search = 1; // wrap to beginning of year
if (!results.Any()) continue; // back out early
resultCount += results.Count();
// Build sorted name list
var names = new List<string>();
foreach (var item in results) {
names.Add(item.DisplayName);
}
names.Sort(StringComparer.OrdinalIgnoreCase);
var first = true;
output.AppendLine();
output.Append($"● `{Common.MonthNames[results.First().BirthMonth]}-{results.First().BirthDay:00}`: ");
foreach (var item in names) {
// If the output is starting to fill up, send out this message and prepare a new one.
if (output.Length > 800) {
await reqChannel.SendMessageAsync(output.ToString()).ConfigureAwait(false);
output.Clear();
first = true;
output.Append($"● `{Common.MonthNames[results.First().BirthMonth]}-{results.First().BirthDay:00}`: ");
}
if (first) first = false;
else output.Append(", ");
output.Append(item);
}
}
if (resultCount == 0)
await reqChannel.SendMessageAsync(
"There are no recent or upcoming birthdays (within the last 7 days and/or next 14 days).")
.ConfigureAwait(false);
else
await reqChannel.SendMessageAsync(output.ToString()).ConfigureAwait(false);
}
/// <summary>
/// Fetches all guild birthdays and places them into an easily usable structure.
/// Users currently not in the guild are not included in the result.
/// </summary>
private static async Task<List<ListItem>> GetSortedUsersAsync(SocketGuild guild) {
using var db = await Database.OpenConnectionAsync();
using var c = db.CreateCommand();
c.CommandText = "select user_id, birth_month, birth_day from " + GuildUserConfiguration.BackingTable
+ " where guild_id = @Gid order by birth_month, birth_day";
c.Parameters.Add("@Gid", NpgsqlTypes.NpgsqlDbType.Bigint).Value = (long)guild.Id;
c.Prepare();
using var r = await c.ExecuteReaderAsync();
var result = new List<ListItem>();
while (await r.ReadAsync()) {
var id = (ulong)r.GetInt64(0);
var month = r.GetInt32(1);
var day = r.GetInt32(2);
var guildUser = guild.GetUser(id);
if (guildUser == null) continue; // Skip user not in guild
result.Add(new ListItem() {
BirthMonth = month,
BirthDay = day,
DateIndex = DateIndex(month, day),
UserId = guildUser.Id,
DisplayName = Common.FormatName(guildUser, false)
});
}
return result;
}
private string ListExportNormal(SocketGuildChannel channel, IEnumerable<ListItem> list) {
// Output: "● Mon-dd: (user ID) Username [ - Nickname: (nickname)]"
var result = new StringBuilder();
result.AppendLine("Birthdays in " + channel.Guild.Name);
result.AppendLine();
foreach (var item in list) {
var user = channel.Guild.GetUser(item.UserId);
if (user == null) continue; // User disappeared in the instant between getting list and processing
result.Append($"● {Common.MonthNames[item.BirthMonth]}-{item.BirthDay:00}: ");
result.Append(item.UserId);
result.Append(" " + user.Username + "#" + user.Discriminator);
if (user.Nickname != null) result.Append(" - Nickname: " + user.Nickname);
result.AppendLine();
}
return result.ToString();
}
private string ListExportCsv(SocketGuildChannel channel, IEnumerable<ListItem> list) {
// Output: User ID, Username, Nickname, Month-Day, Month, Day
var result = new StringBuilder();
// Conforming to RFC 4180; with header
result.Append("UserId,Username,Nickname,MonthDayDisp,Month,Day");
result.Append("\r\n"); // crlf line break is specified by the standard
foreach (var item in list) {
var user = channel.Guild.GetUser(item.UserId);
if (user == null) continue; // User disappeared in the instant between getting list and processing
result.Append(item.UserId);
result.Append(',');
result.Append(CsvEscape(user.Username + "#" + user.Discriminator));
result.Append(',');
if (user.Nickname != null) result.Append(user.Nickname);
result.Append(',');
result.Append($"{Common.MonthNames[item.BirthMonth]}-{item.BirthDay:00}");
result.Append(',');
result.Append(item.BirthMonth);
result.Append(',');
result.Append(item.BirthDay);
result.Append("\r\n");
}
return result.ToString();
}
private static string CsvEscape(string input) {
var result = new StringBuilder();
result.Append('"');
foreach (var ch in input) {
if (ch == '"') result.Append('"');
result.Append(ch);
}
result.Append('"');
return result.ToString();
}
private static int DateIndex(int month, int day) {
var dateindex = 0;
// Add month offsets
if (month > 1) dateindex += 31; // Offset January
if (month > 2) dateindex += 29; // Offset February (incl. leap day)
if (month > 3) dateindex += 31; // etc
if (month > 4) dateindex += 30;
if (month > 5) dateindex += 31;
if (month > 6) dateindex += 30;
if (month > 7) dateindex += 31;
if (month > 8) dateindex += 31;
if (month > 9) dateindex += 30;
if (month > 10) dateindex += 31;
if (month > 11) dateindex += 30;
dateindex += day;
return dateindex;
}
private struct ListItem {
public int DateIndex;
public int BirthMonth;
public int BirthDay;
public ulong UserId;
public string DisplayName;
}
}