/*
 * SPDX-FileCopyrightText: syuilo and misskey-project
 * SPDX-License-Identifier: AGPL-3.0-only
 */

import { Inject, Injectable } from '@nestjs/common';
import { Endpoint } from '@/server/api/endpoint-base.js';
import type { DriveFilesRepository } from '@/models/_.js';
import { DI } from '@/di-symbols.js';
import { CustomEmojiService } from '@/core/CustomEmojiService.js';
import { EmojiEntityService } from '@/core/entities/EmojiEntityService.js';
import { FILE_TYPE_IMAGE } from '@/const.js';
import { ApiError } from '../../../error.js';

export const meta = {
	tags: ['admin'],

	requireCredential: true,
	requiredRolePolicy: 'canManageCustomEmojis',
	kind: 'write:admin:emoji',

	errors: {
		noSuchFile: {
			message: 'No such file.',
			code: 'NO_SUCH_FILE',
			id: 'fc46b5a4-6b92-4c33-ac66-b806659bb5cf',
		},
		unsupportedFileType: {
			message: 'Unsupported file type.',
			code: 'UNSUPPORTED_FILE_TYPE',
			id: 'f7599d96-8750-af68-1633-9575d625c1a7',
		},
		duplicateName: {
			message: 'Duplicate name.',
			code: 'DUPLICATE_NAME',
			id: 'f7a3462c-4e6e-4069-8421-b9bd4f4c3975',
		},
	},

	res: {
		type: 'object',
		ref: 'EmojiDetailed',
	},
} as const;

export const paramDef = {
	type: 'object',
	properties: {
		name: { type: 'string', pattern: '^[\\p{Letter}\\p{Number}\\p{Mark}_+-]+$' },
		fileId: { type: 'string', format: 'misskey:id' },
		category: {
			type: 'string',
			nullable: true,
			description: 'Use `null` to reset the category.',
		},
		aliases: {
			type: 'array',
			items: {
				type: 'string',
			},
		},
		license: { type: 'string', nullable: true },
		isSensitive: { type: 'boolean' },
		localOnly: { type: 'boolean' },
		roleIdsThatCanBeUsedThisEmojiAsReaction: {
			type: 'array',
			items: {
				type: 'string',
			},
		},
	},
	required: ['name', 'fileId'],
} as const;

// TODO: ロジックをサービスに切り出す

@Injectable()
export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
	constructor(
		@Inject(DI.driveFilesRepository)
		private driveFilesRepository: DriveFilesRepository,
		private customEmojiService: CustomEmojiService,
		private emojiEntityService: EmojiEntityService,
	) {
		super(meta, paramDef, async (ps, me) => {
			const nameNfc = ps.name.normalize('NFC');
			const driveFile = await this.driveFilesRepository.findOneBy({ id: ps.fileId });
			if (driveFile == null) throw new ApiError(meta.errors.noSuchFile);
			const isDuplicate = await this.customEmojiService.checkDuplicate(nameNfc);
			if (isDuplicate) throw new ApiError(meta.errors.duplicateName);
			if (!FILE_TYPE_IMAGE.includes(driveFile.type)) throw new ApiError(meta.errors.unsupportedFileType);

			if (driveFile.user !== null) await this.driveFilesRepository.update(driveFile.id, { user: null });

			const emoji = await this.customEmojiService.add({
				originalUrl: driveFile.url,
				publicUrl: driveFile.webpublicUrl ?? driveFile.url,
				fileType: driveFile.webpublicType ?? driveFile.type,
				name: nameNfc,
				category: ps.category?.normalize('NFC') ?? null,
				aliases: ps.aliases?.map(a => a.normalize('NFC')) ?? [],
				host: null,
				license: ps.license ?? null,
				isSensitive: ps.isSensitive ?? false,
				localOnly: ps.localOnly ?? false,
				roleIdsThatCanBeUsedThisEmojiAsReaction: ps.roleIdsThatCanBeUsedThisEmojiAsReaction ?? [],
			}, me);

			return this.emojiEntityService.packDetailed(emoji);
		});
	}
}