import { option } from "@purrkit/router";
import { Result } from "@sapphire/framework";
import { type TicketWithRelations, getTicketsByUser } from "@stealth-developers/db";
import {
	ActionRowBuilder,
	ButtonBuilder,
	ButtonStyle,
	ContainerBuilder,
	TextDisplayBuilder,
} from "discord.js";

import { kitten } from "@/client";
import { PublicError, errorMessage, handleError } from "@/lib";
import { useGetTicketData } from "@/middleware";

import * as actions from "./actions";
import { TicketModalPresets } from "./modals";

export const newTicketButton = kitten.button("b-open-ticket", {
	run: async (interaction) => {
		if (!interaction.guild)
			return errorMessage(interaction, "You must run this command in a guild");

		const func = actions.createTicket(interaction.member ?? interaction.user, interaction.guild);

		const ticketResult = await Result.fromAsync(async () => func);
		if (ticketResult.isErr()) {
			const error = ticketResult.unwrapErr();

			if (error instanceof PublicError) {
				return errorMessage(interaction, error.message);
			} else {
				console.error(error);
				return errorMessage(interaction, "An unexpected error occurred while creating the ticket.");
			}
		}

		const { channelId } = ticketResult.unwrap();
		return interaction.reply({
			content: `Opened ticket <#${channelId}>.`,
			flags: ["Ephemeral"],
		});
	},
});

//
export const closeTicketButton = useGetTicketData.button("b-close-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction) {
		if (!interaction.guild)
			return errorMessage(interaction, "You must run this command in a guild");

		const modal = await actions.triggerCloseTicket(
			interaction.user,
			interaction.guild,
			interaction.channelId,
		);

		await interaction.showModal(modal);
	},
});

export const reopenTicketButton = useGetTicketData.button("b-reopen-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction, _, { actor, ticket, ticketChannel, guild }) {
		if (!ticket || !ticketChannel || !actor || !guild)
			return errorMessage(interaction, "Failed to find ticket");

		const result = await Result.fromAsync(
			actions.reopenTicket({ ticket, ticketChannel, actor, guild }),
		);
		if (result.isErr()) return handleError(interaction, result.unwrapErr());

		await interaction.reply({
			content: `Ticket has been reopened.`,
			flags: ["Ephemeral"],
		});
	},
});

//
export const claimTicketButton = useGetTicketData.button("b-claim-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction, _, ctx) {
		const { actor, guild, ticket, ticketChannel, user } = ctx;
		if (!actor || !guild || !ticket || !ticketChannel || !user) {
			await errorMessage(interaction, "Invalid ticket");
			return;
		}

		const result = await Result.fromAsync(
			actions.claimTicket({ ticket, ticketChannel, actor, guild }),
		);
		if (result.isErr()) return handleError(interaction, result.unwrapErr());

		await interaction.reply({
			content: "Ticket claimed!",
			flags: ["Ephemeral"],
		});
	},
});

export const unclaimTicketButton = useGetTicketData.button("b-unclaim-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction, _, { actor, ticket, ticketChannel, guild }) {
		if (!ticket || !ticketChannel || !actor || !guild)
			return errorMessage(interaction, "Failed to find ticket");

		const result = await Result.fromAsync(
			actions.unclaimTicket({ ticket, ticketChannel, actor, guild }),
		);
		if (result.isErr()) return handleError(interaction, result.unwrapErr());

		await interaction.reply({
			content: `You have unclaimed ticket #${ticket.localId}.`,
			flags: ["Ephemeral"],
		});
	},
});

//
export const commentOnTicketButton = useGetTicketData.button("b-comment-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction, _, { actor, ticket, ticketChannel, guild }) {
		if (!ticket || !ticketChannel || !actor || !guild)
			return errorMessage(interaction, "Failed to find ticket");

		if (!actor.moderator)
			return errorMessage(interaction, "You must be a moderator to use this command");

		await interaction.showModal(TicketModalPresets.comment(ticket.id));
	},
});

export const viewCommentsButton = useGetTicketData.button("b-comment-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction, _, { ticket, actor }) {
		if (!ticket || !actor) return errorMessage(interaction, "Failed to find ticket");
		if (!actor.moderator)
			return errorMessage(interaction, "You must be a moderator to use this command");

		const { comments } = ticket;
		const container = actions.getCommentContainer(ticket.localId, comments);

		await interaction.reply({
			components: [container],
			flags: ["Ephemeral", "IsComponentsV2"],
			allowedMentions: { parse: [] },
		});
	},
});

//
export const editTicketButton = useGetTicketData.button("b-edit-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction, _, { actor, ticket }) {
		if (!actor) {
			return errorMessage(interaction, "This command can only be used in a server.");
		} else if (!actor.moderator) {
			return errorMessage(interaction, "You do not have permission to use this command.");
		} else if (!ticket) {
			return errorMessage(interaction, "Ticket not found.");
		}

		await interaction.showModal(
			TicketModalPresets.edit(ticket.id, {
				public: ticket.closeReason,
				private: ticket.privateReason,
			}),
		);
	},
});

export const cleanTicketButton = useGetTicketData.button("b-delete-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run(interaction, _, ctx) {
		const { actor, ticket, ticketChannel, guild } = ctx;
		if (!ticket || !ticketChannel || !actor || !guild)
			return errorMessage(interaction, "Failed to find ticket");

		const result = await Result.fromAsync(actions.cleanTicket(ctx));
		if (result.isErr()) return errorMessage(interaction, "Failed to delete ticket channel");
	},
});

export const thankButton = kitten.button("b-thank-ticket", {
	options: {
		ticketId: option.string({ required: true }),
	},
	async run() {},
});

//
export const listTicketsPageButton = kitten.button("b-list-tickets-page", {
	options: {
		userId: option.number({ required: true }),
		page: option.number({ required: true }),
	},
	async run(interaction, { userId, page }) {
		const tickets = await getTicketsByUser(userId);
		if (tickets.length === 0) {
			return errorMessage(interaction, "You have no tickets.");
		}

		const payload = getTicketsListPayload(userId, page, tickets);
		await interaction.update({
			...payload,
			flags: ["IsComponentsV2"],
		});
	},
});

export function getTicketsListPayload(
	userId: number,
	page: number,
	tickets: TicketWithRelations[],
) {
	const TICKETS_PER_PAGE = 5;
	const totalPages = Math.ceil(tickets.length / TICKETS_PER_PAGE);
	const currentPage = Math.max(1, Math.min(page, totalPages));

	const pageTickets = tickets.slice(
		(currentPage - 1) * TICKETS_PER_PAGE,
		currentPage * TICKETS_PER_PAGE,
	);

	const container = new ContainerBuilder();
	container.addTextDisplayComponents(
		new TextDisplayBuilder().setContent(`### Your Tickets (Page ${currentPage}/${totalPages})`),
	);

	for (const ticket of pageTickets) {
		container.addTextDisplayComponents(
			new TextDisplayBuilder().setContent(
				[
					`* **Ticket #${ticket.localId}** (${ticket.id}) - ${ticket.status}`,
					`\t* opened <t:${Math.floor(ticket.openedAt.getTime() / 1000)}>`,
					ticket.closedAt ? `  * closed <t:${Math.floor(ticket.closedAt.getTime() / 1000)}>` : "",
				].join("\n"),
			),
		);
	}

	const row = new ActionRowBuilder<ButtonBuilder>();

	if (currentPage > 1)
		row.addComponents(
			TicketButtonPresets.listTicketsPageButton(userId, currentPage - 1, "Previous"),
		);
	if (currentPage < totalPages)
		row.addComponents(TicketButtonPresets.listTicketsPageButton(userId, currentPage + 1, "Next"));
	if (row.components.length > 0) container.addActionRowComponents(row);

	return {
		components: row.components.length > 0 ? [container] : [],
	};
}

export const TicketButtonsMap = {
	newTicketButton,
	closeTicketButton,
	reopenTicketButton,
	claimTicketButton,
	unclaimTicketButton,
	commentOnTicketButton,
	viewCommentsButton,
	editTicketButton,
	cleanTicketButton,
	thankButton,
	listTicketsPageButton,
} as const;
export const TicketButtons = Object.values(TicketButtonsMap);
export type TicketButtonKeys = keyof typeof TicketButtonsMap | "transcriptsLink" | "uploadLink";

export const TicketButtonPresets: Record<TicketButtonKeys, (...args: any[]) => ButtonBuilder> = {
	newTicketButton: () =>
		new ButtonBuilder()
			.setLabel("Open a Ticket")
			.setStyle(ButtonStyle.Success)
			.setCustomId(newTicketButton.id()),

	//
	closeTicketButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(closeTicketButton.id({ ticketId: id }))
			.setLabel("Close Ticket")
			.setStyle(ButtonStyle.Danger),
	reopenTicketButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(reopenTicketButton.id({ ticketId: id }))
			.setLabel("Reopen Ticket")
			.setStyle(ButtonStyle.Primary),

	//
	claimTicketButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(claimTicketButton.id({ ticketId: id }))
			.setLabel("Claim Ticket")
			.setStyle(ButtonStyle.Primary),
	unclaimTicketButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(unclaimTicketButton.id({ ticketId: id }))
			.setLabel("Unclaim Ticket")
			.setStyle(ButtonStyle.Secondary),

	//
	commentOnTicketButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(commentOnTicketButton.id({ ticketId: id }))
			.setLabel(`Add Comment`)
			.setStyle(ButtonStyle.Secondary),

	viewCommentsButton: (id: string, quantity: number) =>
		new ButtonBuilder()
			.setCustomId(viewCommentsButton.id({ ticketId: id }))
			.setLabel(`View Comments (≥${quantity})`)
			.setStyle(ButtonStyle.Secondary),

	//
	editTicketButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(editTicketButton.id({ ticketId: id }))
			.setLabel("Edit Ticket")
			.setStyle(ButtonStyle.Primary),

	//
	cleanTicketButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(cleanTicketButton.id({ ticketId: id }))
			.setLabel("Delete Channel")
			.setStyle(ButtonStyle.Danger),

	//
	transcriptsLink: (id: string) =>
		new ButtonBuilder()
			.setLabel("View on Web")
			.setURL(`https://tickets.vt3e.cat/tickets/${id}`)
			.setStyle(ButtonStyle.Link),

	uploadLink: (id: string) =>
		new ButtonBuilder()
			.setLabel("Upload a video")
			.setStyle(ButtonStyle.Link)
			.setURL(`https://tickets.vt3e.cat/upload/${id}`),

	thankButton: (id: string) =>
		new ButtonBuilder()
			.setCustomId(thankButton.id({ ticketId: id }))
			.setLabel("Thank your moderator")
			.setEmoji("💖")
			.setStyle(ButtonStyle.Success),

	//
	listTicketsPageButton: (userId: number, page: number, label: string) =>
		new ButtonBuilder()
			.setCustomId(listTicketsPageButton.id({ userId, page }))
			.setLabel(label)
			.setStyle(ButtonStyle.Secondary),
};

export default TicketButtonPresets;