const db = require("quick.db");
const { icons, otherIcons } = require("../../icons");

module.exports = {
	page: "/feed",
	// eslint-disable-next-line no-unused-vars
	execute: async (req, res, app, config, themeConfig, info) => {
		if (req.query.action === "delete") {
			const deleteFeed = req.query.feed;

			if (!deleteFeed) return res.redirect("/admin?error=invalidFeed");
			if (!/^\d+$/.test(deleteFeed)) return res.redirect("/admin?error=invalidFeed");
			if (deleteFeed !== "1" && deleteFeed !== "2" && deleteFeed !== "3") return res.redirect("/admin?error=invalidFeed");

			if (deleteFeed === "1") {
				if (!db.get("feeds.one")) return res.redirect("/admin?error=invalidFeed");

				if (db.get("feeds.two")) {
					const f = await db.get("feeds.two");

					await db.set("feeds.one", {
						color: f.color,
						description: f.description,
						published: f.published,
						icon: f.icon,
						diff: f.diff,
					});
				} else await db.delete("feeds.one");

				if (db.get("feeds.three")) {
					const f = await db.get("feeds.three");

					await db.set("feeds.two", {
						color: f.color,
						description: f.description,
						published: f.published,
						icon: f.icon,
						diff: f.diff,
					});

					await db.delete("feeds.three");
				}
			} else if (deleteFeed === "2") {
				if (!db.get("feeds.two")) return res.redirect("/admin?error=invalidFeed");

				if (db.get("feeds.one")) {
					const f = await db.get("feeds.one");
					await db.set("feeds.two", {
						color: f.color,
						description: f.description,
						published: f.published,
						icon: f.icon,
						diff: f.diff,
					});
					await db.delete("feeds.one");
				} else {
					await db.delete("feeds.two");
				}
			} else if (deleteFeed === "3") {
				if (!db.get("feeds.three")) return res.redirect("/admin?error=invalidFeed");

				await db.delete("feeds.three");

				if (db.get("feeds.two")) {
					const f = await db.get("feeds.two");

					await db.set("feeds.three", {
						color: f.color,
						description: f.description,
						published: f.published,
						icon: f.icon,
						diff: f.diff,
					});
				}

				if (db.get("feeds.one")) {
					const f = await db.get("feeds.one");

					await db.set("feeds.two", {
						color: f.color,
						description: f.description,
						published: f.published,
						icon: f.icon,
						diff: f.diff,
					});
				}
			}
			return res.redirect("/admin");
		} else if (req.query.action === "create") {
			const { color, description, icon } = req.query;
			if (!color || !description || !icon) return res.redirect("/admin?error=missingData");

			if (color !== "red" && color !== "orange" && color !== "pink" && color !== "gray" && color !== "green" && color !== "blue" && color !== "dark") return res.redirect("/admin?error=invalidData");
			if (description.length < 3 || description.length > 128) return res.redirect("/admin?error=invalidData");
			if (!icons.includes(icon) && !otherIcons.includes(icon)) return res.redirect("/admin?error=invalidData");

			let diff;
			let col;

			if (otherIcons.includes(icon)) diff = true;
			if (color === "red") col = "danger";
			if (color === "orange") col = "warning";
			if (color === "pink") col = "primary";
			if (color === "gray") col = "secondary";
			if (color === "green") col = "success";
			if (color === "blue") col = "info";
			if (color === "dark") col = "dark";

			if (db.get("feeds.three") && db.get("feeds.two") && db.get("feeds.one")) {
				await db.delete("feeds.one");

				const f3 = db.get("feeds.three");
				const f2 = db.get("feeds.two");

				await db.set("feeds.two", {
					color: f3.color,
					description: f3.description,
					published: f3.published,
					icon: f3.icon,
					diff: f3.diff,
				});

				await db.set("feeds.one", {
					color: f2.color,
					description: f2.description,
					published: f2.published,
					icon: f2.icon,
					diff: f2.diff,
				});

				await db.set("feeds.three", {
					color: col,
					description,
					published: Date.now(),
					icon,
					diff,
				});
			} else {
				if (!db.get("feeds.three")) {
					await db.set("feeds.three", {
						color: col,
						description,
						published: Date.now(),
						icon,
						diff,
					});
				} else if (!db.get("feeds.two")) {
					const f3 = db.get("feeds.three");

					await db.set("feeds.two", {
						color: f3.color,
						description: f3.description,
						published: f3.published,
						icon: f3.icon,
						diff: f3.diff,
					});

					await db.set("feeds.three", {
						color: col,
						description,
						published: Date.now(),
						icon,
						diff,
					});
				} else {
					const f3 = db.get("feeds.three");
					const f2 = db.get("feeds.two");

					await db.set("feeds.one", {
						color: f2.color,
						description: f2.description,
						published: f2.published,
						icon: f2.icon,
						diff: f2.diff,
					});

					await db.set("feeds.two", {
						color: f3.color,
						description: f3.description,
						published: f3.published,
						icon: f3.icon,
						diff: f3.diff,
					});

					await db.set("feeds.three", {
						color: col,
						description,
						published: Date.now(),
						icon,
						diff,
					});
				}
			}
			return res.redirect("/admin");
		}
	},
};