Pull up CommandsCommon into CommandsText

This commit is contained in:
Noi 2022-05-06 21:42:17 -07:00
parent f8d5aef4aa
commit b9e05b37f9
2 changed files with 115 additions and 125 deletions

View file

@ -1,121 +0,0 @@
using NodaTime;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Text;
namespace WorldTime;
internal abstract class CommandsCommon {
protected readonly Database _database;
protected readonly WorldTime _instance;
private static readonly ReadOnlyDictionary<string, string> _tzNameMap;
protected const string ErrInvalidZone = ":x: Not a valid zone name."
+ " To find your time zone, refer to: <https://kevinnovak.github.io/Time-Zone-Picker/>.";
protected const string ErrTargetUserNotFound = ":x: Unable to find the target user.";
protected const string ErrNoUserCache = ":warning: Please try the command again.";
protected const int MaxSingleLineLength = 750;
protected const int MaxSingleOutputLength = 900;
static CommandsCommon() {
Dictionary<string, string> tzNameMap = new(StringComparer.OrdinalIgnoreCase);
foreach (var name in DateTimeZoneProviders.Tzdb.Ids) tzNameMap.Add(name, name);
_tzNameMap = new(tzNameMap);
}
public CommandsCommon(Database database, WorldTime instance) {
_database = database;
_instance = instance;
}
/// <summary>
/// Returns a string displaying the current time in the given time zone.
/// The result begins with four numbers for sorting purposes. Must be trimmed before output.
/// </summary>
protected static string TzPrint(string zone) {
var tzdb = DateTimeZoneProviders.Tzdb;
DateTimeZone tz = tzdb.GetZoneOrNull(zone)!;
if (tz == null) throw new Exception("Encountered unknown time zone: " + zone);
var now = SystemClock.Instance.GetCurrentInstant().InZone(tz);
var sortpfx = now.ToString("MMdd", DateTimeFormatInfo.InvariantInfo);
var fullstr = now.ToString("dd'-'MMM' 'HH':'mm' 'x' (UTC'o<g>')'", DateTimeFormatInfo.InvariantInfo);
return $"{sortpfx}● `{fullstr}`";
}
/// <summary>
/// Checks given time zone input. Returns a valid string for use with NodaTime, or null.
/// </summary>
protected static string? ParseTimeZone(string tzinput) {
if (tzinput.Equals("Asia/Calcutta", StringComparison.OrdinalIgnoreCase)) tzinput = "Asia/Kolkata";
if (_tzNameMap.TryGetValue(tzinput, out var name)) return name;
return null;
}
/// <summary>
/// Formats a user's name to a consistent, readable format which makes use of their nickname.
/// </summary>
protected static string FormatName(SocketGuildUser user) {
static string escapeFormattingCharacters(string input) {
var result = new StringBuilder();
foreach (var c in input) {
if (c is '\\' or '_' or '~' or '*' or '@') {
result.Append('\\');
}
result.Append(c);
}
return result.ToString();
}
var username = escapeFormattingCharacters(user.Username);
if (user.Nickname != null) {
return $"**{escapeFormattingCharacters(user.Nickname)}** ({username}#{user.Discriminator})";
}
return $"**{username}**#{user.Discriminator}";
}
/// <summary>
/// Checks if the given user can be considered a guild admin ('Manage Server' is set).
/// </summary>
protected static bool IsUserAdmin(SocketGuildUser user)
=> user.GuildPermissions.Administrator || user.GuildPermissions.ManageGuild;
// TODO port modrole feature from BB, implement in here
/// <summary>
/// Checks if the member cache for the specified guild needs to be filled, and sends a request if needed.
/// </summary>
/// <remarks>
/// Due to a quirk in Discord.Net, the user cache cannot be filled until the command handler is no longer executing,
/// regardless of if the request runs on its own thread.
/// </remarks>
/// <returns>
/// True if the guild's members are already downloaded. If false, the command handler must notify the user.
/// </returns>
protected static async Task<bool> AreUsersDownloadedAsync(SocketGuild guild) {
if (HasMostMembersDownloaded(guild)) return true;
else {
// Event handler hangs if awaited normally or used with Task.Run
await Task.Factory.StartNew(guild.DownloadUsersAsync).ConfigureAwait(false);
return false;
}
}
/// <summary>
/// An alternative to <see cref="SocketGuild.HasAllMembers"/>.
/// Returns true if *most* members have been downloaded.
/// Used as a workaround check due to Discord.Net occasionally unable to actually download all members.
/// </summary>
/// <remarks>Copied directly from BirthdayBot. Try to coordinate changes between projects...</remarks>
private static bool HasMostMembersDownloaded(SocketGuild guild) {
if (guild.HasAllMembers) return true;
if (guild.MemberCount > 30) {
// For guilds of size over 30, require 85% or more of the members to be known
// (26/30, 42/50, 255/300, etc)
return guild.DownloadedMemberCount >= (int)(guild.MemberCount * 0.85);
} else {
// For smaller guilds, fail if two or more members are missing
return guild.MemberCount - guild.DownloadedMemberCount <= 2;
}
}
}

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@ -1,9 +1,12 @@
using System.Text; using NodaTime;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions; using System.Text.RegularExpressions;
namespace WorldTime; namespace WorldTime;
internal class CommandsText : CommandsCommon { internal class CommandsText {
#if DEBUG #if DEBUG
public const string CommandPrefix = "tt."; public const string CommandPrefix = "tt.";
#else #else
@ -12,16 +15,32 @@ internal class CommandsText : CommandsCommon {
delegate Task Command(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message); delegate Task Command(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message);
private readonly Dictionary<string, Command> _commands; private readonly Dictionary<string, Command> _commands;
private readonly Database _database;
private readonly WorldTime _instance;
private static readonly Regex _userExplicit; private static readonly Regex _userExplicit;
private static readonly Regex _userMention; private static readonly Regex _userMention;
private static readonly ReadOnlyDictionary<string, string> _tzNameMap;
private const string ErrInvalidZone = ":x: Not a valid zone name."
+ " To find your time zone, refer to: <https://kevinnovak.github.io/Time-Zone-Picker/>.";
private const string ErrTargetUserNotFound = ":x: Unable to find the target user.";
private const string ErrNoUserCache = ":warning: Please try the command again.";
private const int MaxSingleLineLength = 750;
private const int MaxSingleOutputLength = 900;
static CommandsText() { static CommandsText() {
_userExplicit = new Regex(@"(.+)#(\d{4})", RegexOptions.Compiled); _userExplicit = new Regex(@"(.+)#(\d{4})", RegexOptions.Compiled);
_userMention = new Regex(@"\!?(\d+)>", RegexOptions.Compiled); _userMention = new Regex(@"\!?(\d+)>", RegexOptions.Compiled);
Dictionary<string, string> tzNameMap = new(StringComparer.OrdinalIgnoreCase);
foreach (var name in DateTimeZoneProviders.Tzdb.Ids) tzNameMap.Add(name, name);
_tzNameMap = new(tzNameMap);
} }
public CommandsText(WorldTime inst, Database db) : base(db, inst) { public CommandsText(WorldTime inst, Database db) {
_instance = inst;
_database = db;
_commands = new(StringComparer.OrdinalIgnoreCase) { _commands = new(StringComparer.OrdinalIgnoreCase) {
{ "help", CmdHelp }, { "help", CmdHelp },
{ "list", CmdList }, { "list", CmdList },
@ -274,4 +293,96 @@ internal class CommandsText : CommandsCommon {
return null; return null;
} }
#region Helper methods
/// <summary>
/// Returns a string displaying the current time in the given time zone.
/// The result begins with four numbers for sorting purposes. Must be trimmed before output.
/// </summary>
private static string TzPrint(string zone) {
var tzdb = DateTimeZoneProviders.Tzdb;
DateTimeZone tz = tzdb.GetZoneOrNull(zone)!;
if (tz == null) throw new Exception("Encountered unknown time zone: " + zone);
var now = SystemClock.Instance.GetCurrentInstant().InZone(tz);
var sortpfx = now.ToString("MMdd", DateTimeFormatInfo.InvariantInfo);
var fullstr = now.ToString("dd'-'MMM' 'HH':'mm' 'x' (UTC'o<g>')'", DateTimeFormatInfo.InvariantInfo);
return $"{sortpfx}● `{fullstr}`";
}
/// <summary>
/// Checks given time zone input. Returns a valid string for use with NodaTime, or null.
/// </summary>
private static string? ParseTimeZone(string tzinput) {
if (tzinput.Equals("Asia/Calcutta", StringComparison.OrdinalIgnoreCase)) tzinput = "Asia/Kolkata";
if (_tzNameMap.TryGetValue(tzinput, out var name)) return name;
return null;
}
/// <summary>
/// Formats a user's name to a consistent, readable format which makes use of their nickname.
/// </summary>
private static string FormatName(SocketGuildUser user) {
static string escapeFormattingCharacters(string input) {
var result = new StringBuilder();
foreach (var c in input) {
if (c is '\\' or '_' or '~' or '*' or '@') {
result.Append('\\');
}
result.Append(c);
}
return result.ToString();
}
var username = escapeFormattingCharacters(user.Username);
if (user.Nickname != null) {
return $"**{escapeFormattingCharacters(user.Nickname)}** ({username}#{user.Discriminator})";
}
return $"**{username}**#{user.Discriminator}";
}
/// <summary>
/// Checks if the given user can be considered a guild admin ('Manage Server' is set).
/// </summary>
private static bool IsUserAdmin(SocketGuildUser user)
=> user.GuildPermissions.Administrator || user.GuildPermissions.ManageGuild;
// TODO port modrole feature from BB, implement in here
/// <summary>
/// Checks if the member cache for the specified guild needs to be filled, and sends a request if needed.
/// </summary>
/// <remarks>
/// Due to a quirk in Discord.Net, the user cache cannot be filled until the command handler is no longer executing,
/// regardless of if the request runs on its own thread.
/// </remarks>
/// <returns>
/// True if the guild's members are already downloaded. If false, the command handler must notify the user.
/// </returns>
private static async Task<bool> AreUsersDownloadedAsync(SocketGuild guild) {
if (HasMostMembersDownloaded(guild)) return true;
else {
// Event handler hangs if awaited normally or used with Task.Run
await Task.Factory.StartNew(guild.DownloadUsersAsync).ConfigureAwait(false);
return false;
}
}
/// <summary>
/// An alternative to <see cref="SocketGuild.HasAllMembers"/>.
/// Returns true if *most* members have been downloaded.
/// Used as a workaround check due to Discord.Net occasionally unable to actually download all members.
/// </summary>
/// <remarks>Copied directly from BirthdayBot. Try to coordinate changes between projects...</remarks>
private static bool HasMostMembersDownloaded(SocketGuild guild) {
if (guild.HasAllMembers) return true;
if (guild.MemberCount > 30) {
// For guilds of size over 30, require 85% or more of the members to be known
// (26/30, 42/50, 255/300, etc)
return guild.DownloadedMemberCount >= (int)(guild.MemberCount * 0.85);
} else {
// For smaller guilds, fail if two or more members are missing
return guild.MemberCount - guild.DownloadedMemberCount <= 2;
}
}
#endregion
} }