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import { Snowflake } from 'discord-api-types';
import {
ActivePunishment,
ActivePunishmentType,
BushGuildMember,
BushGuildMemberResolvable,
BushGuildResolvable,
Guild,
ModLog,
ModLogType
} from '..';
export class Moderation {
/**
* Checks if a moderator can perform a moderation action on another user.
* @param moderator - The person trying to perform the action.
* @param victim - The person getting punished.
* @param type - The type of punishment - used to format the response.
* @param checkModerator - Whether or not to check if the victim is a moderator.
*/
public static async permissionCheck(
moderator: BushGuildMember,
victim: BushGuildMember,
type: 'mute' | 'unmute' | 'warn' | 'kick' | 'ban' | 'unban' | 'add a punishment role to' | 'remove a punishment role from',
checkModerator = true,
force = false
): Promise<true | string> {
if (force) return true;
// If the victim is not in the guild anymore it will be undefined
if ((!victim || !victim.guild) && !['ban', 'unban'].includes(type)) return true;
if (moderator.guild.id !== victim.guild.id) {
throw new Error('moderator and victim not in same guild');
}
const isOwner = moderator.guild.ownerId === moderator.id;
if (moderator.id === victim.id && !type.startsWith('un')) {
return `${util.emojis.error} You cannot ${type} yourself.`;
}
if (
moderator.roles.highest.position <= victim.roles.highest.position &&
!isOwner &&
!(type.startsWith('un') && moderator.id === victim.id)
) {
return `${util.emojis.error} You cannot ${type} **${victim.user.tag}** because they have higher or equal role hierarchy as you do.`;
}
if (
victim.roles.highest.position >= victim.guild.me!.roles.highest.position &&
!(type.startsWith('un') && moderator.id === victim.id)
) {
return `${util.emojis.error} You cannot ${type} **${victim.user.tag}** because they have higher or equal role hierarchy as I do.`;
}
if (checkModerator && victim.permissions.has('MANAGE_MESSAGES') && !(type.startsWith('un') && moderator.id === victim.id)) {
if (await moderator.guild.hasFeature('modsCanPunishMods')) {
return true;
} else {
return `${util.emojis.error} You cannot ${type} **${victim.user.tag}** because they are a moderator.`;
}
}
return true;
}
public static async createModLogEntry(
options: {
type: ModLogType;
user: BushGuildMemberResolvable;
moderator: BushGuildMemberResolvable;
reason: string | undefined | null;
duration?: number;
guild: BushGuildResolvable;
pseudo?: boolean;
evidence?: string;
},
getCaseNumber = false
): Promise<{ log: ModLog | null; caseNum: number | null }> {
const user = (await util.resolveNonCachedUser(options.user))!.id;
const moderator = (await util.resolveNonCachedUser(options.moderator))!.id;
const guild = client.guilds.resolveId(options.guild)!;
// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
const duration = options.duration || undefined;
// If guild does not exist create it so the modlog can reference a guild.
await Guild.findOrCreate({
where: {
id: guild
},
defaults: {
id: guild
}
});
const modLogEntry = ModLog.build({
type: options.type,
user,
moderator,
reason: options.reason,
duration: duration,
guild,
pseudo: options.pseudo ?? false,
evidence: options.evidence
});
const saveResult: ModLog | null = await modLogEntry.save().catch(async (e) => {
await util.handleError('createModLogEntry', e);
return null;
});
if (!getCaseNumber) return { log: saveResult, caseNum: null };
const caseNum = (await ModLog.findAll({ where: { type: options.type, user: user, guild: guild, hidden: 'false' } }))
?.length;
return { log: saveResult, caseNum };
}
public static async createPunishmentEntry(options: {
type: 'mute' | 'ban' | 'role' | 'block';
user: BushGuildMemberResolvable;
duration: number | undefined;
guild: BushGuildResolvable;
modlog: string;
extraInfo?: Snowflake;
}): Promise<ActivePunishment | null> {
const expires = options.duration ? new Date(+new Date() + options.duration ?? 0) : undefined;
const user = (await util.resolveNonCachedUser(options.user))!.id;
const guild = client.guilds.resolveId(options.guild)!;
const type = this.findTypeEnum(options.type)!;
const entry = ActivePunishment.build(
options.extraInfo
? { user, type, guild, expires, modlog: options.modlog, extraInfo: options.extraInfo }
: { user, type, guild, expires, modlog: options.modlog }
);
return await entry.save().catch(async (e) => {
await util.handleError('createPunishmentEntry', e);
return null;
});
}
public static async removePunishmentEntry(options: {
type: 'mute' | 'ban' | 'role' | 'block';
user: BushGuildMemberResolvable;
guild: BushGuildResolvable;
extraInfo?: Snowflake;
}): Promise<boolean> {
const user = await util.resolveNonCachedUser(options.user);
const guild = client.guilds.resolveId(options.guild);
const type = this.findTypeEnum(options.type);
if (!user || !guild) return false;
let success = true;
const entries = await ActivePunishment.findAll({
// finding all cases of a certain type incase there were duplicates or something
where: options.extraInfo
? { user: user.id, guild: guild, type, extraInfo: options.extraInfo }
: { user: user.id, guild: guild, type }
}).catch(async (e) => {
await util.handleError('removePunishmentEntry', e);
success = false;
});
if (entries) {
const promises = entries.map(async (entry) =>
entry.destroy().catch(async (e) => {
await util.handleError('removePunishmentEntry', e);
success = false;
})
);
await Promise.all(promises);
}
return success;
}
private static findTypeEnum(type: 'mute' | 'ban' | 'role' | 'block') {
const typeMap = {
['mute']: ActivePunishmentType.MUTE,
['ban']: ActivePunishmentType.BAN,
['role']: ActivePunishmentType.ROLE,
['block']: ActivePunishmentType.BLOCK
};
return typeMap[type];
}
}
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