import { Not } from "typeorm";
import { Pages, DriveFiles } from "@/models/index.js";
import define from "../../define.js";
import { ApiError } from "../../error.js";
import { HOUR } from "@/const.js";

export const meta = {
	tags: ["pages"],

	requireCredential: true,

	kind: "write:pages",

	limit: {
		duration: HOUR,
		max: 300,
	},

	errors: {
		noSuchPage: {
			message: "No such page.",
			code: "NO_SUCH_PAGE",
			id: "21149b9e-3616-4778-9592-c4ce89f5a864",
		},

		accessDenied: {
			message: "Access denied.",
			code: "ACCESS_DENIED",
			id: "3c15cd52-3b4b-4274-967d-6456fc4f792b",
		},

		noSuchFile: {
			message: "No such file.",
			code: "NO_SUCH_FILE",
			id: "cfc23c7c-3887-490e-af30-0ed576703c82",
		},
		nameAlreadyExists: {
			message: "Specified name already exists.",
			code: "NAME_ALREADY_EXISTS",
			id: "2298a392-d4a1-44c5-9ebb-ac1aeaa5a9ab",
		},
	},
} as const;

export const paramDef = {
	type: "object",
	properties: {
		pageId: { type: "string", format: "misskey:id" },
		title: { type: "string" },
		name: { type: "string", minLength: 1 },
		summary: { type: "string", nullable: true },
		content: {
			type: "array",
			items: {
				type: "object",
				additionalProperties: true,
			},
		},
		variables: {
			type: "array",
			items: {
				type: "object",
				additionalProperties: true,
			},
		},
		script: { type: "string" },
		eyeCatchingImageId: {
			type: "string",
			format: "misskey:id",
			nullable: true,
		},
		font: { type: "string", enum: ["serif", "sans-serif"] },
		alignCenter: { type: "boolean" },
		hideTitleWhenPinned: { type: "boolean" },
		isPublic: { type: "boolean" },
	},
	required: ["pageId", "title", "name", "content", "variables", "script"],
} as const;

export default define(meta, paramDef, async (ps, user) => {
	const page = await Pages.findOneBy({ id: ps.pageId });
	if (page == null) {
		throw new ApiError(meta.errors.noSuchPage);
	}
	if (page.userId !== user.id) {
		throw new ApiError(meta.errors.accessDenied);
	}

	let eyeCatchingImage = null;
	if (ps.eyeCatchingImageId != null) {
		eyeCatchingImage = await DriveFiles.findOneBy({
			id: ps.eyeCatchingImageId,
			userId: user.id,
		});

		if (eyeCatchingImage == null) {
			throw new ApiError(meta.errors.noSuchFile);
		}
	}

	await Pages.findBy({
		id: Not(ps.pageId),
		userId: user.id,
		name: ps.name,
	}).then((result) => {
		if (result.length > 0) {
			throw new ApiError(meta.errors.nameAlreadyExists);
		}
	});

	await Pages.update(page.id, {
		updatedAt: new Date(),
		title: ps.title,
		name: ps.name === undefined ? page.name : ps.name,
		summary: ps.name === undefined ? page.summary : ps.summary,
		content: ps.content,
		variables: ps.variables,
		script: ps.script,
		isPublic: ps.isPublic,
		alignCenter:
			ps.alignCenter === undefined ? page.alignCenter : ps.alignCenter,
		hideTitleWhenPinned:
			ps.hideTitleWhenPinned === undefined
				? page.hideTitleWhenPinned
				: ps.hideTitleWhenPinned,
		font: ps.font === undefined ? page.font : ps.font,
		eyeCatchingImageId:
			ps.eyeCatchingImageId === null
				? null
				: ps.eyeCatchingImageId === undefined
				? page.eyeCatchingImageId
				: eyeCatchingImage!.id,
	});
});
