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import { DeleteButton, type CommandMessage, type SlashMessage } from '#lib';
import { CommandUtil } from 'discord-akairo';
import {
ActionRowBuilder,
ButtonBuilder,
ButtonStyle,
EmbedBuilder,
type APIEmbed,
type Message,
type MessageComponentInteraction
} from 'discord.js';
/**
* Sends multiple embeds with controls to switch between them
*/
export class ButtonPaginator {
/**
* The current page of the paginator
*/
protected curPage: number;
/**
* The paginator message
*/
protected sentMessage: Message | undefined;
/**
* @param message The message that triggered the command
* @param embeds The embeds to switch between
* @param text The optional text to send with the paginator
* @param {} [deleteOnExit=true] Whether the paginator message gets deleted when the exit button is pressed
* @param startOn The page to start from (**not** the index)
*/
protected constructor(
protected message: CommandMessage | SlashMessage,
protected embeds: EmbedBuilder[] | APIEmbed[],
protected text: string | null,
protected deleteOnExit: boolean,
startOn: number
) {
this.curPage = startOn - 1;
// add footers
for (let i = 0; i < embeds.length; i++) {
if (embeds[i] instanceof EmbedBuilder) {
(embeds[i] as EmbedBuilder).setFooter({ text: `Page ${(i + 1).toLocaleString()}/${embeds.length.toLocaleString()}` });
} else {
(embeds[i] as APIEmbed).footer = {
text: `Page ${(i + 1).toLocaleString()}/${embeds.length.toLocaleString()}`
};
}
}
}
/**
* The number of pages in the paginator
*/
protected get numPages(): number {
return this.embeds.length;
}
/**
* Sends the paginator message
*/
protected async send() {
this.sentMessage = await this.message.util.reply({
content: this.text,
embeds: [this.embeds[this.curPage]],
components: [this.getPaginationRow()]
});
const collector = this.sentMessage.createMessageComponentCollector({
filter: (i) => i.customId.startsWith('paginate_'),
time: 300_000
});
collector.on('collect', (i) => void this.collect(i));
collector.on('end', () => void this.end());
}
/**
* Handles interactions with the paginator
* @param interaction The interaction received
*/
protected async collect(interaction: MessageComponentInteraction) {
if (interaction.user.id !== this.message.author.id && !this.message.client.config.owners.includes(interaction.user.id))
return await interaction?.deferUpdate().catch(() => null);
switch (interaction.customId) {
case 'paginate_beginning':
this.curPage = 0;
await this.edit(interaction);
break;
case 'paginate_back':
this.curPage--;
await this.edit(interaction);
break;
case 'paginate_stop':
if (this.deleteOnExit) {
await interaction.deferUpdate().catch(() => null);
await this.sentMessage!.delete().catch(() => null);
break;
} else {
await interaction
?.update({
content: `${this.text ? `${this.text}\n` : ''}Command closed by user.`,
embeds: [],
components: []
})
.catch(() => null);
break;
}
case 'paginate_next':
this.curPage++;
await this.edit(interaction);
break;
case 'paginate_end':
this.curPage = this.embeds.length - 1;
await this.edit(interaction);
break;
}
}
/**
* Ends the paginator
*/
protected async end() {
if (this.sentMessage && !CommandUtil.deletedMessages.has(this.sentMessage.id))
await this.sentMessage
.edit({
content: this.text,
embeds: [this.embeds[this.curPage]],
components: [this.getPaginationRow(true)]
})
.catch(() => null);
}
/**
* Edits the paginator message
* @param interaction The interaction received
*/
protected async edit(interaction: MessageComponentInteraction) {
await interaction
?.update({
content: this.text,
embeds: [this.embeds[this.curPage]],
components: [this.getPaginationRow()]
})
.catch(() => null);
}
/**
* Generates the pagination row based on the class properties
* @param disableAll Whether to disable all buttons
* @returns The generated {@link ActionRow}
*/
protected getPaginationRow(disableAll = false) {
return new ActionRowBuilder<ButtonBuilder>().addComponents(
new ButtonBuilder({
style: ButtonStyle.Primary,
customId: 'paginate_beginning',
emoji: PaginateEmojis.BEGINNING,
disabled: disableAll || this.curPage === 0
}),
new ButtonBuilder({
style: ButtonStyle.Primary,
customId: 'paginate_back',
emoji: PaginateEmojis.BACK,
disabled: disableAll || this.curPage === 0
}),
new ButtonBuilder({
style: ButtonStyle.Primary,
customId: 'paginate_stop',
emoji: PaginateEmojis.STOP,
disabled: disableAll
}),
new ButtonBuilder({
style: ButtonStyle.Primary,
customId: 'paginate_next',
emoji: PaginateEmojis.FORWARD,
disabled: disableAll || this.curPage === this.numPages - 1
}),
new ButtonBuilder({
style: ButtonStyle.Primary,
customId: 'paginate_end',
emoji: PaginateEmojis.END,
disabled: disableAll || this.curPage === this.numPages - 1
})
);
}
/**
* Sends multiple embeds with controls to switch between them
* @param message The message to respond to
* @param embeds The embeds to switch between
* @param text The text send with the embeds (optional)
* @param deleteOnExit Whether to delete the message when the exit button is clicked (defaults to true)
* @param startOn The page to start from (**not** the index)
*/
public static async send(
message: CommandMessage | SlashMessage,
embeds: EmbedBuilder[] | APIEmbed[],
text: string | null = null,
deleteOnExit = true,
startOn = 1
) {
// no need to paginate if there is only one page
if (embeds.length === 1) return DeleteButton.send(message, { embeds: embeds });
return await new ButtonPaginator(message, embeds, text, deleteOnExit, startOn).send();
}
}
export const PaginateEmojis = {
BEGINNING: { id: '853667381335162910', name: 'w_paginate_beginning', animated: false } as const,
BACK: { id: '853667410203770881', name: 'w_paginate_back', animated: false } as const,
STOP: { id: '853667471110570034', name: 'w_paginate_stop', animated: false } as const,
FORWARD: { id: '853667492680564747', name: 'w_paginate_next', animated: false } as const,
END: { id: '853667514915225640', name: 'w_paginate_end', animated: false } as const
} as const;
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